A support structure for a load measurement sensor has sufficient durability without adding a large load to a portion transmitting a load to the load measurement sensor. In a support structure for a load measurement sensor, including a sensor body detecting a load generated from a seat having a seat frame and an extension shaft portion extending from the sensor body, by way of attachment brackets in the state where the extension shaft portion follows the horizontal direction, the support structure includes a load input portion which comes into contact with the sensor body and inputs a load to the sensor body, the sensor body includes a load receiving surface which contacts the load input portion and receives the load, and the load input portion is formed to be movable in the axial direction of the extension shaft portion with respect to the load receiving surface.

The invention relates to a temperature sensor comprising: a temperature-sensitive element (3); and a peripheral casing (7) accommodating the temperature-sensitive element (3) and having a closed end (9), the peripheral casing (7) being able to be inserted into a corresponding cavity (11), characterized in that the closed end (9) of the peripheral casing (7) has a peripheral portion (21) revealing, butted against the closed end, a flexible assembly stop (23) after said peripheral portion (21), said stop (23) being able to deform towards the peripheral portion (21) by shape cooperation with the bottom (15) of the corresponding cavity (11). The subject of the invention is also a process for manufacturing a temperature sensor as described above and a method of assembling said sensor.

A ratio meter includes a converter circuit, a first counter, a delay circuit, and a second counter. The converter circuit is configured to receive a temperature-independent signal, to convert the received temperature-independent signal into a first frequency signal during a first phase, to receive a temperature-dependent signal, and to convert the temperature-dependent signal into a second frequency signal during a second phase. The first counter is configured to receive the first frequency signal and to generate a control signal by counting a predetermined number of pulses of the first frequency signal count. The delay circuit is configured to delay the control signal for a predetermined time delay. The second counter is configured to receive the second frequency signal and to generate a count value by counting the second frequency signal.

A parking sensor device has a casing, a front cover, a sensor module and an assembling clamp. The casing has two first hooking elements. The front cover is mounted on the casing. The sensor module is mounted in the casing and the front cover. The assembling clamp detachably engages the casing and has two second hooking elements. The second hooking elements selectively hook the first hooking elements of the casing respectively. The casing and the assembling clamp are engaged quickly with each other, thereby facilitating the easy fabrication of the parking sensor device and improving the convenience of maintenance of the parking sensor device.

An ultrasonic sensor includes: a substrate; an ultrasonic transducer disposed on the substrate, and configured and arranged to transmit ultrasonic waves that propagate as plane waves in a direction orthogonal to a surface of the substrate; an acoustic refracting part contacting the ultrasonic transducer, and configured and arranged to refract the ultrasonic waves transmitted from the ultrasonic transducer; an elastically deformable elastic portion contacting the acoustic refracting part; and an ultrasonic reflecting member disposed within the elastic portion, and configured and arranged to reflect the ultrasonic waves. The acoustic refracting part is configured and arranged to refract, toward the ultrasonic reflecting member, the ultrasonic waves transmitted from the ultrasonic transducer.

A insensitive explosive comprises: 34.9 wt % diethylenetriamine trinitrate (DETN),33.4 wt % ethylenediamine dinitrate (EDD),25.4 wt % methyl-guanidine (MeNQ), and6.3 wt % guanidine (NQ). This quaternary eutectic is used in combination with a sensitive explosive. A low melting temperature facilitates melt casting to fill 155 mm artillery shells.

The invention relates to the field of explosives, and more particularly relates to particles of an explosive, wherein they are in crystalline form, have a rounded shape and a majority of them contain no internal defect. Particles of an explosive in crystalline form include a volume fraction of closed pores of less than or equal to 0.05%. A method for preparing explosive particles includes preparing crystalline particles, a majority of which are without an internal defect; and rounding the crystalline particles.

A substantially nitrocellulose-free insensitive gun propellant for barrel-type weapons is provided. The gun propellant includes at least one nitramine, such as HMX and/or RDX, a second energetic, and an inert binder system. The gun propellant is capable of producing a maximum projectile velocity exceeding 2680 ft/sec when fired from a 5 inch 54 caliber gun and gives a response to slow cook-off insensitive munitions testing of Type 4 or higher, and a response to fragment impact insensitive munitions testing of Type 3 or higher as measured by STANAG 4382 and STANAG 4496, respectively. Also provided is an ammunition round assembly, and an armament system.

An insensitive crystalline high explosive molding powder, usable as a booster HE. The subject insensitive crystalline high explosive molding powder being manufactured by adding the crystalline high explosive, and a polymer or wax based binder to a solvent to form a solution, spray drying the solution to drive off the solvent, thereby co-precipitating the HE and binder to form granules in which the crystals of HE are uniformly distributed in the binder.

The invention provides for a receptor, capable of binding to a target molecule, linked to a hygroscopic polymer or hydrogel; and the use of this receptor in a device for detecting the target molecule in a gaseous and/or liquid phase. The invention also provides for a method for detecting the presence of a target molecule in the gas phase using the device. In particular, the receptor can be a peptide capable of binding a 2,4,6-trinitrotoluene (TNT) or 2,4,-dinitrotoluene (DNT).

This invention relates to the field of advertising and information display. It can be used in the production of portable advertising and information media with flexible supports, transported easily, and installed quickly to display any visual information. The invention ensures high-quality and effective tensioning of the panel over the course of a long use period including multiple relocations. The device for presenting information comprises a panel mounted on a sectional frame with rotating edges of the panel mounted on the sides of the frame. Each of the rotatable edges consists of at least two layers: the panel itself and a facing applied to the panel in its pre-tensioned resiliently deformed state, thus retaining the tension of the panel material attached to the facing. The panel is mounted on a frame in a state of resiliently extended deformation and is fixed with edges supported in pairs on the frame.

An orally-enjoyable tobacco product includes a portion of smokeless tobacco comprising an active ingredient and either: (1) a collection of tobacco particles at least partially enclosed by a coating comprising a water-soluble non-crosslinked component and a substantially water-insoluble cross-linked component, or (2) a pouch comprising smokeless tobacco enclosed in a water-permeable wrapper. The active ingredient is selected from the group consisting of a mercaptan, camphor, borneol, isoborneol, bornyl acetate, isobornyl acetate, mono-bornyl succinate, mono-isobornyl succinate, mono-bornyl formate, and mono-isobornyl formate. The active ingredient is present in an amount effective to reduce or eliminate the sensory irritation arising from the smokeless tobacco. Also disclosed is a method of making such a product.

The general field of the invention is that of the graphical representation of a synthetic three dimensional view of the exterior landscape in an onboard visualisation system for aircraft, said graphical representation being displayed on a visualisation screen comprising the piloting and navigation information of said aircraft superposed onto said three-dimensional synthetic representation of the exterior landscape, said synthetic representation being computed up to a first determined distance, characterised in that said three-dimensional synthetic representation is tilted at a tilt angle about an axiom positioned at the level of the terrain in a substantially horizontal plane, and substantially perpendicularly to an axis between the flight direction and the heading of the aircraft, said axis moving with the aircraft.

A sensor signal processing device includes an AD conversion section, a filter section, a timing signal generation section, and an arithmetic section. The timing signal generation section generates a signal synchronized with a crank angle of an engine based on a signal indicating the crank angle and generates a data acquisition timing signal by compensating the signal synchronized with the crank angle with a delay time of the filter. The arithmetic section acquires a plurality of sensor signals, which is transmitted from a sensor, converted from an analog signal to a digital signal by the AD conversion section, and filtered by the filter section, in a term before and after receiving the data acquisition timing signal and generates a data synchronized with the data acquisition timing signal.

A programmable memory including a self-latching read data path. A sense amplifier senses the voltage level at a bit line, the bit line communicating the data state of a selected memory cell in its associated column. A data latch coupled to the output of the sense amplifier passes the sensed data state. Set-reset logic is provided that receives the output of the data latch in the read data path and, in response to a transition of the data state in a read cycle, latches the data latch and isolates it from the sense amplifier. The set-reset logic resets the data latch at the start of the next read cycle. In some embodiments, a timer is provided so that the latch is reset after a time-out period in a long read cycle in which no data transition occurs.

A read sensing method for an OTP non-volatile memory is provided. The memory array is connected with plural bit lines. Firstly, a selected memory cell of the memory array is determined, wherein one of the plural bit lines connected with the selected memory cell is a selected bit line and the other bit lines are unselected bit lines. Then, the unselected bit lines are precharged to a precharge voltage. Then, the selected bit line is connected with the data line, and the data line is discharged to a reset voltage. After a cell current from the selected memory cell is received, a voltage level of the data line is gradually changed from the reset voltage. According to at least one result of comparing a voltage level of the data line with a comparing voltage, an output signal is generated.

An electronic device is provided with an inclination sensor for computing inclination, a control unit which conducts predetermined control based on a value computed by the inclination sensor, a case which has the inclination sensor and the control unit therein, and a suspension portion for suspending the case, and the control unit controls correction of the reference value of the inclination sensor based on a state where the case is suspended by the suspension portion and still.

The invention relates to an autonomous system for determining items of information representative of the movement of an articulated chain (CA—1, CA—2, CA—3) comprising at least two solid elements (ES1—1, ES2—1, ES1—2, ES2—2, ES3—2, ES1—3, ES2—3, ES3—3, ES4—3) and at least one articulation (ART1—1, ART1—2, ART2—2, ART1—3, ART2—3, ART3—3) connecting said two elements. The system comprises at least two devices (DISP1—1, DISP2—1, DISP1—2, DISP2—2, DISP3—2, DISP1—3, DISP2—3, DISP3—3, DISP4—3) for measuring inter-device distances, mounted fixedly on two distinct elements of said articulated chain and suitable for transmitting the measurements made. Moreover, the system comprises means for determining at least one distance separating two measuring devices based on at least one measurement supplied by a measuring device, and calculation means (CALC), mounted on said articulated chain, suitable for calculating items of information representative of the movement of said articulated chain based on the measurements transmitted by said devices for measuring inter-device distances.

A system is invented to combine different signals from various sensors together so that an object (such as a car, an airplane etc.)'s position and/or orientation can be measured.

The present document describes methods of use of photo activated compositions for oral disinfection and/or treatments which comprise at least one oxidant, at least one photoactivator capable of activating the oxidant, and at least one healing factor chosen from hyaluronic acid, glucosamine and allantoin, in association with a pharmacologically acceptable carrier.

In accordance with embodiments of the present disclosure, systems and methods for sensing and communicating sensed downhole parameters using a hybrid micro-structured fiber optic cable are provided. The micro-structured fiber optic cable may be used to communicate and/or amplify sensor signals indicative of the sensed downhole parameters. These sensed downhole parameters may include one or more of a downhole temperature, pressure, magnetic field, electromagnetic energy, radioactivity, telemetry signal, or some other downhole measurement. The micro-structured fiber optic cable may include opto-electronic circuitry built into the internal structure of the cable for modulating the optical signal based on the sensed parameters. The opto-electronic circuitry may include diodes, triodes, and other components that are communicatively coupled to external sensors used to measure downhole parameters. The opto-electronic circuitry may include an internal sensor in the form of a functional material disposed within the micro-structured fiber optic cable for measuring downhole parameters.

A system includes an optical fiber and an interrogator to provide source light to the optical fiber. The system also includes a receiver coupled to the optical fiber. The receiver includes at least one fiber optic coupler that receives backscattered light and that produces optical interferometry signals from the backscattered light. The receiver also includes photo-detectors that produce an electrical signal for each of said optical interferometry signals. The system also includes at least one digitizer that digitizes the electrical signals. The system also includes at least one processing unit that calculates I/Q data from the digitized electrical signals, corrects the I/Q data based on ellipse fitting, determines phase values based on the corrected I/Q data, and determines distributed sensing parameter values based on the phase values.

A multi sensor detection and disabling lock system includes detector cases for holding interchangeable detectors that sample for chemical, biological and radiological compounds, agents and elements, with each detector case disposed in or upon the monitored product. The detector case transmits detection information to a monitoring computer terminal and transmits a signal to a lock disabler engaged to the product to lock or disable the product's lock thereby preventing untrained, unauthorized and unequipped individuals from gaining access and entry to the product, and also preventing further contamination of the area. The detection system can be interconnected to surveillance towers scanning detector cases disposed at seaport docks, freight depots and rail terminals for monitoring containers being prepared for shipment or sitting on docks for long periods of time.

A system that incorporates teachings of the subject disclosure may include, for example, a method for detecting, by a system including at least one processor, a presence of an object from sensor data generated by a sensor device, retrieving, by the system, from a memory device a plurality of profiles biometrically descriptive of approved objects, asserting, by the system, an alarm responsive to determining from the sensor data that the detected object is not biometrically correlated to any of the plurality of profiles, classifying, by the system, the detected object as an authorized object responsive to determining from the sensor data that the detected object is biometrically correlated to at least one of the plurality of profiles, and notifying, by the system, at least one neighboring device responsive to asserting the alarm or responsive to classifying the detected object as the authorized object. Other embodiments are disclosed.

An adaptive algorithm based battery-powered long distance wireless temperature and humidity sensor module. The sensor module uses an adaptive algorithm to transmit data on an event basis and/or a reduced basis to extend battery life to more than 10 years. It also uses a low power wireless transmitter which has frequency of sub-1 GHz and an effective transfer distance of up to 250 meters, a low power temperature and humidity sensor, and a long lasting lithium battery which has shelf life of 20 years.

Embodiments disclosed herein generally relate to contact at the disk by the recording head in a hard disk drive. In one embodiment, a direct current is applied to an element in a HAMR head. An alternating current is then applied to the element over top of the direct current to cause the HAMR head to dither. By monitoring the head signal at the dither frequency, a touchdown or contact of a NFT on a disk may be detected based upon variations in the produced signal.

The input component includes a molding that forms an external frame, a sensor sheet formed by providing a sensor electrode on a base sheet formed of a resin film, the sensor sheet being installed inside the molding, a display element capable of being illuminated by an internal light source, a light shielding portion that shields a light from the internal light source, the display element being illuminated when the internal light source is on, a contact with the display element enabling an input operation, a colored transparent layer formed so as to have a color tone that creates a blackout in which the display element becomes integrated with the light shielding portion surrounding the display element when the internal light source is off so as to become difficult to perceive, the colored transparent layer being provided so as to be layered on the display element, and a light diffusing layer.

A motion sensing lighting device includes a base seat, an illuminating assembly, and a sensing component. The base seat has a pivotal portion. The illuminating assembly includes a pair of illumination lamps. The illuminating assembly has an adapter module rotatably mounted to the pivotal portion, and a pair of illumination lamps. The adapter module is pivotally connected to the pivotal portion. The pair of illumination lamps are rotatably arranged at two sides of the adapter module. The sensing component is pivotally connected to the pivotal portion and is selectively used to start the illuminating assembly.

A content management system aggregates and provides users' interaction with a content item for display in an activity feed. Events corresponding to the users' interaction with the content item are provided in conjunction with a user interface of a native application displaying the content item. Though provided in conjunction with the native application, the events are maintained separate from the content data of the content item and displayed in the activity feed by an application separate from the native application of the content item. The activity feed permits users to exchange chat messages and retrieve information for multiple versions of the content item.

In one embodiment, a piezoelectric device is positioned adjacent to a debris fence. A resonant frequency detection circuit connects with the piezoelectric device. The resonant frequency of the piezoelectric device is responsive to debris adjacent to the debris fence.

A harvesting system and method providing a row insensitive plant cutting and gathering capability, suitable for harvesting tall, stalky plants such as sweet sorghum, cane, and the like, in high volume, which also billet cuts the harvested plants. Multiple plants are cut simultaneously on a continuous basis at any locations across a header of the system, and the cut plants are gathered into a continuous overlapping flow having a vertical extent or thickness of several stalks or canes and their associated foliage. The flow is then vertically compacted into a mat of reduced thickness while being conveyed into a billet cutter, which cuts the stalks or canes into billets of a desired length and discharges the billets to a desired location, all while the harvester is moving through a field harvesting. The system can be incorporated into a conventional sugarcane harvester in place of conventional base cutters and row dividers.

A method of forming image sensor packages may include performing a molding process. Mold material may be formed either on a transparent substrate in between image sensor dies, or on a removable panel in between transparent substrates attached to image sensor dies. Redistribution layers may be formed before or after the molding process. Mold material may be formed after forming redistribution layers so that the mold material covers the redistribution layers. In these cases, holes may be formed in the mold material to expose solder pads on the redistribution layers. Alternatively, redistribution layers may be formed after the molding process and the redistribution layers may extend over the mold material. Image sensor dies may be attached to a glass or notched glass substrate with dam structures. The methods of forming image sensor packages may result in hermetic image sensor packages that prevent exterior materials from reaching the image sensor.

A radar sensor for detecting at least one object, having a control device to receive a control input signal; a signal generator to generate a transmit signal having a multitude of signal cycles, each signal cycle having a multitude of signal sequences, and a series of blocks being formed, each block having precisely one frequency ramp of each signal sequence, and the signal generator furthermore being designed to select a predefined quantity of blocks from the transmit signal based on the control input signal and to output them as output signal; an antenna device to transmit the output signal that is output by the signal generator and to receive a receive signal; and an evaluation device which is designed to ascertain, by superpositioning the transmit signal and the receive signal, a quantity with regard to an angle and/or a distance and/or a relative speed of the at least one object.

A sensor includes a reception antenna, a parasitic antenna terminating in a variable load, a controller, a transmitter transmitting a transmission signal, a receiver, a memory, and a processor. The controller sets an impedance value of the variable load. The receiver receives a first signal formed of signals received by the antennas and derived from the transmission signal, and the signal received by the parasitic antenna corresponding to the impedance value. The memory stores a first signal strength value of the first signal corresponding to the impedance value. The processor sets candidates of a complex propagation channel, calculates second signal strength values of a second signal respectively corresponding to the candidates, estimates a target complex propagation channel by selecting a candidate corresponding to a minimum difference among differences between the first signal strength value and the second signal strength values, and estimates a direction of arrival of the first signal.

A plant cultivation apparatus including: a guide rail disposed above a cultivation bed and extending along the length direction of the cultivation bed; a movable unit configured to move along the guide rail; an arm unit having a first end that is coupled to the movable unit, and a second end that is telescopically extendable from the movable unit toward the cultivation bed; and a UV radiation unit coupled to the second end of the arm unit and configured to irradiate the cultivation bed with a set amount of UV light.

Methods and apparatus are described. A method, implemented in a decoder, includes receiving two or more signals from an encoder over two or more respective wires. At least one of the two or more signals includes at least one code that was recoded by the encoder. The decoder receives a recoding table. The recoding table provides a mapping indicating the recoding for each code that was recoded by the encoder in the received two or more signals. The decoder decodes the two or more received signals using the received recoding table.

A circuit and a method for converting an analog signal to a digital value representation is disclosed. In one aspect, the circuit includes an incremental sigma-delta analog-to-digital converter (ADC). The circuit further includes a first input line for providing a primary analog signal representing a sensor measurement to the incremental sigma-delta ADC. The circuit further includes a second input line for providing a secondary analog signal to the incremental sigma-delta ADC. The incremental sigma-delta ADC receives the primary and secondary analog signals during a first period (TADC1) and a second period (TADC2), respectively. The circuit further includes a filter configured to weight the digital values in a sequence of digital values output by the incremental sigma-delta ADC, and to output a single digital value representing the sensor measurement.

A displacement sensor having a rectangular shaped elastic member. A piezoelectric element is attached to a first main face of the elastic member. The piezoelectric element has a rectangular-shaped piezoelectric sheet and electrodes on both main faces of the piezoelectric sheet. The piezoelectric sheet is made of poly-L-lactic acid and is at least uniaxially-stretched. The piezoelectric element is attached so that the uniaxial-stretching direction of the piezoelectric sheet is 45° relative to a long-side direction of the elastic member. When the elastic member is bent along the long-side direction, the piezoelectric sheet is stretched along the long-side direction, and the piezoelectric element generates voltage of predetermined level.

An impact sensing device including a plurality of accelerometers orthogonally oriented with respect to each other and attachable at a body location, each capable of producing a signal indicative of an impact. An integrated circuit is configured to determine the magnitude and direction of the impact based on the signals and operative to activate an indicator when the magnitude exceeds a selected threshold based on the direction of the impact. A head injury coefficient is determined based on the magnitude and a duration of the impact, and the threshold level of acceleration is expressed in terms of a head injury coefficient value. The head injury coefficient value is determined by empirically correlating a head injury coefficient measured at the body location and a head injury coefficient measured at the center of mass of a human head resulting from an impact.

In embodiments of the present invention improved capabilities are described for an antenna-based detection method and system for sensing an environmental change condition. The method and system is adapted such that the states comprising the environmental change condition are capable of being determined at the location of the detection point utilizing only the magnitude component of the antenna impedance as altered by the discrete change in the environmental condition.

A display of an electric device includes a plurality of separated transparent electrode blocks, which are configured to provide one or more of supplemental features such as touch recognition. Signal paths between the transparent electrode blocks and the driver for the supplemental feature are implemented with a plurality of conductive lines placed under positioned under one or more planarization layers. The conductive lines implementing the signal paths are routed across the display area, directly toward a non-display area where drive-integrated circuits are located.

A film is sputter-deposited on an essentially plane, extended surface of a substrate which has recesses therein, namely at least one of grooves, of holes, of bores, of vias, of trenches. So as to establish on one hand a homogeneous thickness distribution of the film along the addressed surface of the substrate and, on the other hand, a thick film deposition within the recesses, sputter deposition is performed first at a large distance between a sputter surface of a target and the addressed surface of the substrate and then at a reduced distance between the addressed surfaces.

The concentration measurement method includes: introducing a predetermined amount of the biological sample into the capillary; measuring a temperature of the biological sample by applying a first voltage to the electrode unit when the temperature of the biological sample is measured, the first voltage allowing the temperature measurement to be less affected by increase and reduction in an amount of the analyte contained in the biological sample; measuring the concentration of the analyte contained in the biological sample by applying a second voltage to the electrode unit; measuring an environmental temperature in a surrounding of the biological sample; and correcting the concentration of the measured analyte based on the measured temperature of the biological sample and the measured environmental temperature.

Light-addressable potentiometric sensing units are provided. A light-addressable potentiometric sensing unit comprises a conductive substrate, a metal oxide semiconductor layer, and a sensing layer. The metal oxide semiconductor layer is made of indium gallium zinc oxide, indium gallium oxide, indium zinc oxide, indium oxide co-doped with tin and zinc, tin oxide, or zinc oxide. The wide-band gap characteristic of the metal oxide semiconductor layer enables the light-addressable potentiometric sensing unit to resist the interference from visible light. The light-addressable potentiometric sensing unit therefore exhibits a more stable performance.

In one illustrative embodiment, a test strip with a first planar substrate has coplanar electrodes on a first planar surface and a second planar substrate (which opposes the first surface of the first planar substrate) has coplanar electrodes on a second planar surface. The first planar surface of the first planar substrate having a first sensing area electrically connected to a first electrical contact. The second planar surface of the second planar substrate having a second electrical contact electrically connected to the first electrical contact via a conductive element, the conductive element extending between the first surface of the first planar substrate and the second surface of the second planar substrate without passing through the first planar substrate, the second planar substrate, or any intermediate layers.

The present disclosure relates to metal alloys for biosensors. An electrode is made from the metal alloy, which more specifically can be a nickel-based alloy. The alloy provides physical and electrical property advantages when compared with existing pure metal electrodes.

The present invention provides an ion selective electrode comprising an electrode having a coating deposited on the electrode, wherein the coating comprises one or more aroyl-thiourea ionophores incorporated into a polymer matrix to selectively interact with one or more ions. The aroylthiourea ionophores may be poly-5, poly-6, poly-7, poly-7a, poly-7b, poly-8a, poly-8b or a combination thereof, e.g., a bis(furoylthiourea)benzene derivative, a 2,2'-bith-iophenyl derivative that selectively senses Pb2+ ions. The polymer matrix may be a polyaniline, a polythiophene or the polymer matrix may be an aroylthiourea ionophore inserted into polyvinyl-chloride for Pb2+ and Hg2+ ion sensing.

An SCU as a control device for the gas sensor (first and second NOx sensors) includes an applied voltage switching unit for switching an applied voltage of a pump cell when a deterioration detecting function is performed, and a deterioration rate calculation unit for calculating a deterioration rate of a sensor cell based on a slope during a transient change in an output of the sensor cell according to a switching of the applied voltage by the applied voltage switching unit.

A detection section is used in such a manner that it is inserted into a living body by being guided by an insertion needle to be stuck and inserted into the living body. The detection section includes a first region, a second region, and a third region. The first region is provided in a tip end portion of the detection section and includes an electrode layer (detection electrode). The third region includes a wiring section and has a smaller width than the width of a slit of the insertion needle. The second region is provided between the first region and the third region and has the same width as the width of the third region by gradually decreasing from the width of the first region.

The invention relates to a method for analyzing the composition of a gaseous stream comprising at least two gaseous components, one of which is methane; and to a sensor array and a gas sensor comprising such sensor array. The method comprises contacting the gaseous mixture with a sensor, wherein the sensor comprises a sensor array comprising at least two sensor elements, wherein each of said sensor elements comprises a transducer coated with a coating comprising a polymeric material having at least one property that is responsive to one or more of said gaseous components when exposed thereto, wherein said sensor elements differ at least in the composition of the coating, providing an energy input to said transducers that is converted to output signals based on said property, and obtaining said output signals.