FUEL TANK MONITORING SYSTEM
    1.
    发明申请

    公开(公告)号:US20240391606A1

    公开(公告)日:2024-11-28

    申请号:US18674308

    申请日:2024-05-24

    Abstract: An aircraft fuel tank monitoring system is disclosure including at least one first sensor for sensing a pressure of fuel within a fuel tank; at least one second sensor for sensing a pressure of an ullage space above the fuel within the fuel tank; a processor for monitoring the change in the pressure of the fuel within the fuel tank over a time period and for monitoring the change in the pressure of the ullage space within the fuel tank over the time period, and to determine a fault if the monitored pressure changes exceed normal operating conditions.

    Transmitter with hollow box for wheel assemblies

    公开(公告)号:US11794531B2

    公开(公告)日:2023-10-24

    申请号:US16306642

    申请日:2017-10-26

    Inventor: Yasuhisa Tsujita

    Abstract: A transmitter arranged in a tire includes a transmitting section, which has a terminal, and a pressure switch. The pressure switch includes a hollow box and a passage that causes an interior of the box and an interior of the tire to communicate with each other. The box includes a conductive deforming portion, which is separate from the terminal when the difference between the pressure in the box and the pressure in the tire is less than a predetermined value and is elastically deformed to contact the terminal when the pressure in the box is higher than the pressure in the tire at least by the predetermined value. The transmitting section transmits a warning signal that causes a tire pressure warning device to issue a warning in response to contact between the deforming portion and the terminal.

    Gas safety device
    3.
    发明授权

    公开(公告)号:US11714434B2

    公开(公告)日:2023-08-01

    申请号:US17599538

    申请日:2020-05-13

    Abstract: A gas safety device includes flow path, shutoff valve that shuts off flow path, flow rate measurement unit that measures a flow rate of gas, gas-side absolute pressure sensor that measures absolute pressure of the gas, atmosphere-side absolute pressure sensor that measures absolute pressure of atmospheric pressure, and pressure value transition detector that detects a transition state of the absolute pressure measured by gas-side absolute pressure sensor. Further provided are sensor drive controller that controls driving of atmosphere-side absolute pressure sensor in accordance with a value of pressure transition in pressure value transition detector, and gas pressure determination unit that calculates gas supply pressure from a difference between pressure values measured when the two sensors are driven. Control circuit is further provided to shut off flow path with shutoff valve when determining anomaly from a flow rate measured by flow rate measurement unit and gas supply pressure calculated by gas pressure determination unit.

    Embedded computing device
    4.
    发明授权

    公开(公告)号:US11703938B2

    公开(公告)日:2023-07-18

    申请号:US16722038

    申请日:2019-12-20

    Inventor: Erik Lindman

    Abstract: According to an example aspect of the present invention, there is provided an apparatus comprising a first processing core configured to generate first control signals and to control a display by providing the first control signals to the display via a first display interface, a second processing core configured to generate second control signals and to control the display by providing the second control signals to the display via a second display interface, and the first processing core being further configured to cause the second processing core to enter and leave a hibernation state based at least partly on a determination, by the first processing core, concerning an instruction from outside the apparatus.

    Field serviceable, small form-factor pressure scanner

    公开(公告)号:US11692897B2

    公开(公告)日:2023-07-04

    申请号:US17174543

    申请日:2021-02-12

    CPC classification number: G01L19/147 G01L13/00 G01L15/00 G01L19/14

    Abstract: The disclosed technology relates to a field serviceable pressure scanner suitable for high-pressure sensing applications and replacement of large pressure transmitter panels. The pressure scanner includes a housing having a mounting plate comprising a plurality of through-hole bores extending from a front to back side for mating with corresponding transducer ports of the pressure sensors, and a plurality of input ports disposed on the front side of the mounting plate and in communication with the corresponding plurality of through-hole bores. The pressure scanner assembly includes two or more field-replaceable (swappable) pressure sensors seal mounted to the back side of the mounting plate, each pressure sensor comprising one or more sensor ports, each of the one or more sensor port in communication with corresponding through-hole bores in the mounting plate, and a multi-channel data acquisition system configured to receive pressure signals from the two or more field-replaceable pressure sensors.

    DUAL ACOUSTIC PRESSURE AND HYDROPHONE SENSOR ARRAY SYSTEM

    公开(公告)号:US20230132220A1

    公开(公告)日:2023-04-27

    申请号:US18089221

    申请日:2022-12-27

    Abstract: An aspect of the invention is directed to a system of both atmospheric and underwater sensors for measuring pressure waves from a noise source. A system of pressure sensors can be formed to determine the location of an external noise source, whether in air or underwater. The system includes at least two arrays consisting of pressure sensors, including at least one atmospheric pressure sensor and at least one underwater pressure sensor, such as a hydrophone. Each sensor may be a seven-fiber intensity modulated fiber optic pressure sensor. The system includes an analog to digital converter for digitizing the pressure data received from each sensor and a processor which processes the received signals to calculate an approximate location of the noise source based upon the pressure signals received by the sensors at different times of arrival. The system can provide this capability in remote applications due to its low power requirements.

    SENSOR ELEMENT
    9.
    发明申请

    公开(公告)号:US20210108980A1

    公开(公告)日:2021-04-15

    申请号:US17064059

    申请日:2020-10-06

    Abstract: A sensor chip of a sensor element includes a diaphragm for measuring a differential pressure between a first pressure and a second pressure, a diaphragm for measuring an absolute pressure or a gauge pressure of the second pressure, a first pressure introduction path that transmits the first pressure to the diaphragm for measuring a differential pressure, and a second pressure introduction path that transmits the second pressure to the diaphragms. When the transmission of the first pressure or the second pressure to the diaphragms is indicated by an equivalent circuit, a path for transmitting the first pressure and a path for transmitting the second pressure are symmetrically formed.

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