Clog resistant low pass filter for a pressure transducer

    公开(公告)号:US11852551B2

    公开(公告)日:2023-12-26

    申请号:US17678378

    申请日:2022-02-23

    IPC分类号: G01L19/06 G01L19/00 G01L1/18

    摘要: A reconfigurable pressure transducer assembly having an input tube filter assembly is provided. Multiple small inlet apertures of the transducer housing or input tube filter assembly may be utilized to filter particulate matter from the measurement media/fluid. The resonant frequency and dampening characteristics of the pressure transducer assembly may be configured by the input tube filter assembly such that temporary clogging of a portion of the small inlet apertures does not appreciably affect the resonant frequency and dampening characteristics. The input tube filter assembly includes one or more inserts disposed in an input tube channel, the one or more inserts including one or more apertures of selectable dimensions and extending therethrough from a first end to a second end. The one or more inserts define at least a filter aperture, and the input tube filter assembly is tunable by selection of the selectable dimensions of the one or more inserts.

    TRANSDUCER ASSEMBLY WITH HEADER WITH IMPROVED CONFIGURATION INCLUDING SIDE PINS

    公开(公告)号:US20220412828A1

    公开(公告)日:2022-12-29

    申请号:US17823099

    申请日:2022-08-30

    IPC分类号: G01L13/02 G01L19/00 G01L19/06

    摘要: The invention includes differential pressure transducer assembly systems and methods in which headers are configured with header pins that extend perpendicular with respect to an axis of the assembly and through header sidewalls, enabling a compact configuration, ease of assembly, enhanced reliability and/or redundancy. Channels and ports defined in a housing portion of the assembly are configured to enable the use of substantially straight tubing sections for routing main and/or reference pressures to one or more differential sensing elements mounted on the headers. Two or more headers with associated sensing elements can be stacked to provide redundant differential pressure sensing.

    Sensor having thermal gradients
    3.
    发明授权

    公开(公告)号:US10942076B2

    公开(公告)日:2021-03-09

    申请号:US16513790

    申请日:2019-07-17

    IPC分类号: G01L9/06 G01L13/02 G01L19/04

    摘要: The invention is an improved sensor assembly including a housing; a first header and a second header coupled to the housing; a first transducer coupled to the first header and a second transducer coupled to the second header. The first transducer is configured to measure a first pressure to generate a first pressure signal. The second transducer is configured to measure a second pressure to generate a second pressure signal. The first transducer and the second transducer are positioned in the housing such that a first temperature of the first transducer is about equivalent to a second temperature of the second transducer during operation of the sensor assembly.

    Sensor header assembly for increased reliability in high-pressure environments

    公开(公告)号:US10788386B2

    公开(公告)日:2020-09-29

    申请号:US16205836

    申请日:2018-11-30

    IPC分类号: G01L19/00 G01L19/14

    摘要: Header construction and techniques are disclosed that utilize header layers that provide support for electrical interconnections. A sensor header assembly includes: an upper header layer having upper through holes arranged in a first configuration; a lower header layer having lower through holes arranged in a second configuration axially offset relative to the first configuration; depressions extending from the lower header layer top surface and partially through the lower header layer, each depression defining a footprint corresponding to the first configuration of the corresponding upper through holes of the upper header layer; upper header pins extending through the corresponding upper through holes and at least partially into the corresponding lower level depressions; and lower header pins extending through the corresponding lower through holes and in electrical communication with the corresponding upper header pins. The depressions form support surfaces for supporting at least the corresponding upper header pins during high-pressure operation.

    Two lead electronic switch system adapted to replace a mechanical switch system

    公开(公告)号:US10749516B2

    公开(公告)日:2020-08-18

    申请号:US15621047

    申请日:2017-06-13

    发明人: Wolf S. Landmann

    摘要: Systems and methods are disclosed for a two lead electronic switch adapted to replace a mechanical switch. In one embodiment, a device is provided that includes a sensor and an electronic circuit having a voltage limiting circuit. The electronic circuit is configured to deactivate/activate the voltage limiting circuit to operate the electronic circuit in a first/second state in response to determining that an output of the sensor is less/more than a threshold voltage. The circuit includes first and second terminals configured to receive a switch voltage used to provide power for the device. The device sets the switch voltage to a first voltage level operative to power the electronic circuit and the sensor while the electronic circuit is operating in the first state and to a second voltage level operative to power the electronic circuit and the sensor while the electronic circuit is operating in the second state.

    Self-heated pressure sensor assemblies

    公开(公告)号:US10656036B2

    公开(公告)日:2020-05-19

    申请号:US16242133

    申请日:2019-01-08

    IPC分类号: G01L9/06 G01L19/04 G01L9/00

    摘要: The present invention provides a self-heated pressure sensor assembly and method of utilizing the same. The self-heated pressure sensor assembly regulates and maintains the temperature of the pressure sensor, regardless of the external temperature environment, without an external heater as in prior art embodiments. Exemplary embodiments of the pressure sensor assembly incorporate a resistance heater that is built into the sensing chip of the pressure sensor assembly. The pressure sensor assembly also utilizes the resistance of the pressure sensing elements to monitor the temperature of the assembly, which works alongside the resistance heater to maintain a stable temperature within the pressure sensor assembly.

    Header assembly for a pressure sensor

    公开(公告)号:US10451511B2

    公开(公告)日:2019-10-22

    申请号:US15789178

    申请日:2017-10-20

    IPC分类号: G01L19/00 B23K1/00 B23K101/38

    摘要: A header assembly for a pressure sensor and methods for manufacturing and using the same are provided. In one example embodiment, a header insert may include a base; a hollow protrusion coupled to the base and having a metalized inner surface and a metalized outer surface, wherein the metalized outer surface of the hollow protrusion is used to couple to a header and the metalized inner surface of the hollow protrusion is used to couple to a header pin; and wherein a seal is formed between the header, the header insert and the header pin.

    Pressure transducer structures suitable for curved surfaces

    公开(公告)号:US10048139B2

    公开(公告)日:2018-08-14

    申请号:US14157933

    申请日:2014-01-17

    申请人: Nora Kurtz

    摘要: A flexible transducer structure suitable for attaching to a curved surface such as the leading edge of an aircraft wing is provided. In one example embodiment, a method may include receiving, at a sensor disposed on a flexible sheet, a pressure, wherein the sensor is electrically coupled to a conductive trace disposed on the flexible sheet; measuring, by the sensor, the pressure to generate a pressure signal; outputting, by the sensor, to the conductive trace, the pressure signal, wherein the conductive trace extends away from the sensor on the flexible sheet; and wherein the flexible sheet is adaptable to conform to a contour of a curved surface.

    Two wavelength optical interferometric pressure switch and pressure transducers

    公开(公告)号:US09945740B2

    公开(公告)日:2018-04-17

    申请号:US15153803

    申请日:2016-05-13

    发明人: Martin A. Sanzari

    IPC分类号: G01L1/24 G01D5/353

    CPC分类号: G01L1/24 G01D5/35312

    摘要: Certain implementations of the disclosed technology may include Fabry-Perot Interferometer (FPI)-based sensors systems and methods for measuring a desired stimulus. In accordance with an example implementation of the disclosed technology, a method is provided for receiving, by a Fabry-Perot Interferometer (FPI) sensor, first interrogation light having a first wavelength and second interrogation light having a second wavelength. The FPI sensor is configured to alter the received first interrogation light and the second interrogation light responsive to a measurement stimulus. The method includes detecting, by a first optical detector, a measurement signal responsive to receiving the altered first interrogation light and the altered second interrogation light from the FPI sensor, the measurement signal corresponding to the measurement stimulus. The method includes producing a measurement output signal, the measurement output signal representing an intensity of the measurement signal. The method further includes outputting the measurement output signal.