RADIATION SOURCE AND GAS SENSOR USING THE RADIATION SOURCE

    公开(公告)号:US20210231562A1

    公开(公告)日:2021-07-29

    申请号:US17122490

    申请日:2020-12-15

    Abstract: A radiation source for obliquely launching a narrowband electromagnetic radiation into a cavity, comprises an emitter structure having a main radiation emission region for emitting the narrowband electromagnetic radiation, wherein the emitter structure is optically coupled to the cavity, and a layer element coupled to the main radiation emission region of the emitter structure, wherein the layer element comprises a radiation deflection structure configured for deflecting the radiation emission characteristic of the emitter structure with respect to the surface normal of the main radiation emission region of the emitter structure.

    Sensor arrangement and method for testing a sensor arrangement

    公开(公告)号:US10935451B2

    公开(公告)日:2021-03-02

    申请号:US16025703

    申请日:2018-07-02

    Inventor: David Tumpold

    Abstract: In accordance with an embodiment, a sensor arrangement includes a pressure transducer configured to be in fluid connection with a volume region having a fluid, where the pressure transducer is configured to output a pressure signal in response to a pressure change in the volume region, the pressure signal comprising a signal curve that depends on the pressure change; a heating element configured to provide a defined temperature change of the fluid situated in the volume region, wherein the defined temperature change of the fluid brings about a corresponding pressure change in the volume region; and a processing device configured to ascertain a current functional parameter of the pressure transducer based on the signal curve of the pressure signal obtained in the volume region due to the defined temperature change provided by the heating element.

    System and method for a variable flow transducer

    公开(公告)号:US10367430B2

    公开(公告)日:2019-07-30

    申请号:US14992615

    申请日:2016-01-11

    Abstract: According to an embodiment, a microelectromechanical systems MEMS transducer includes a deflectable membrane attached to a support structure, an acoustic valve structure configured to cause the deflectable membrane to be acoustically transparent in a first mode and acoustically visible in a second mode, and an actuating mechanism coupled to the deflectable membrane. Other embodiments include corresponding systems and apparatus, each configured to perform various embodiment methods.

    System and Method for a MEMS Device
    34.
    发明申请

    公开(公告)号:US20190181776A1

    公开(公告)日:2019-06-13

    申请号:US16274720

    申请日:2019-02-13

    Abstract: According to an embodiment, a microelectromechanical systems MEMS device includes a first membrane attached to a support structure that a first plurality of acoustic vents; a second membrane attached to the support structure that includes a second plurality of acoustic vents, where the first plurality of acoustic vents and the second plurality of acoustic vents do not overlap; and a closing mechanism coupled to the first membrane and the second membrane.

    Acoustic wave detector
    35.
    发明授权

    公开(公告)号:US10302554B2

    公开(公告)日:2019-05-28

    申请号:US15172178

    申请日:2016-06-03

    Abstract: An acoustic wave detector may include: an exterior housing with an exterior housing wall, a gas chamber located within the exterior housing and configured to receive a gas therein. The exterior housing wall may include an aperture providing a gas passage between the gas chamber and the exterior of the acoustic wave detector. The acoustic wave detector may further include an excitation element configured to selectively excite gas molecules of a specific type in the gas received in the gas chamber in a time-varying fashion, thereby generating acoustic waves in the gas, and an acoustic wave sensor configured to detect the acoustic waves generated in the gas and acoustic waves generated outside of the acoustic wave detector. The acoustic wave sensor may have an acoustic port overlapping with the aperture in the exterior housing wall.

    GAS ANALYZER
    36.
    发明申请
    GAS ANALYZER 审中-公开

    公开(公告)号:US20180164215A1

    公开(公告)日:2018-06-14

    申请号:US15376738

    申请日:2016-12-13

    Abstract: A gas analyzer may include: a gas chamber configured to receive a gas to be analyzed therein, a radiation source configured to emit electromagnetic radiation into the gas chamber, the electromagnetic radiation being adapted to selectively excite gas molecules of a specific type that is to be detected in the gas received in the gas chamber, a collimator configured to collimate the electromagnetic radiation emitted by the radiation source, and a sensor configured to detect a physical quantity indicative of a degree of interaction between the electromagnetic radiation emitted by the radiation source and the gas to be analyzed.

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