Passive pressure sensing using sensor with resonator having bridged ends

    公开(公告)号:US09625338B2

    公开(公告)日:2017-04-18

    申请号:US14574146

    申请日:2014-12-17

    CPC classification number: G01L9/0022 G01L1/162 G01L7/084 G01L9/008

    Abstract: A pressure sensor for sensing pressure of a fluid includes a diaphragm flexure and a crystal retaining flexure. The diaphragm flexure is designed to exert imparted force on the crystal retaining flexure. The imparted force is proportional to fluid pressure exerted on the diaphragm flexure. The pressure sensor further includes a resonator having opposing curved end portions connected to each other by a bridge section. A portion of the crystal retaining flexure is positioned between the diaphragm flexure and the resonator. The crystal retaining flexure is designed to exert a load on the resonator. The load results from the imparted force exerted on the crystal retaining flexure by the diaphragm flexure.

    High speed rotor dynamics centralizer

    公开(公告)号:US11976521B2

    公开(公告)日:2024-05-07

    申请号:US17631816

    申请日:2020-07-30

    CPC classification number: E21B17/1021 E21B17/1028 E21B17/1057

    Abstract: A centralizer for use in high speed rotor dynamics applications includes a housing having a first end portion and a second end portion. The centralizer further includes a rotatable shaft positioned within a cavity of the housing. The centralizer also includes flexure springs that are each attached to and extend between the first end portion and the second end portion. The flexure springs are compressible toward a middle portion of the housing that is between the first end portion and the second end portion. The centralizer further includes roller wheels attached to the flexure springs.

    PRESSURIZED RESERVOIR CORE SAMPLE TRANSFER TOOL SYSTEM

    公开(公告)号:US20210032947A1

    公开(公告)日:2021-02-04

    申请号:US16944542

    申请日:2020-07-31

    Abstract: A system for transferring at least one subterranean core sample under pressure can include a retrieval vessel that collects and houses the at least one subterranean core sample at a sampling pressure at which the at least one subterranean core is collected. The system can also include a linear actuator that couples to the retrieval vessel through a valve in the open position at a first time, where the linear actuator facilitates removal of at least one pressure barrier from the retrieval vessel through the valve at the first time while maintaining the sampling pressure of the at least one subterranean sample. The system can further include a testing vessel that couples to the linear actuator through the valve in the open position at a second time, and a hydraulic device that facilitates pressurizing the testing vessel to the sampling pressure at the second time.

    MONITORING SYSTEM FOR FLOATING ROOF STORAGE TANK

    公开(公告)号:US20180266874A1

    公开(公告)日:2018-09-20

    申请号:US15923176

    申请日:2018-03-16

    CPC classification number: G01F23/68 G01F23/0023

    Abstract: A system for monitoring a floating roof of a liquid storage tank and a method for use of the system are described. The system includes linear position measuring devices to determine the vertical location and orientation of the floating roof within the storage tank and one or more transmitters to relay such information to a monitoring, recording, or control device, or to a remote computer network location. Typically, three measuring devices are used, positioned at or near the top of the storage tank and generally equally spaced around the perimeter of the tank. The system and method are useful to monitor the position and inclination of a liquid storage tank floating roof, such as may be used in the petrochemical, chemical and other industries where such storage tanks are in use.

    Passive pressure sensing using sensor with disk resonator

    公开(公告)号:US09625339B2

    公开(公告)日:2017-04-18

    申请号:US14609176

    申请日:2015-01-29

    CPC classification number: G01L9/008 G01L9/0022

    Abstract: A pressure sensor for sensing pressure of a fluid includes a diaphragm flexure and a crystal retaining flexure. The diaphragm flexure is designed to exert imparted force on the crystal retaining flexure. The imparted force is proportional to fluid pressure exerted on the diaphragm flexure. The pressure sensor further includes a resonator having a round outer perimeter. A portion of the crystal retaining flexure is positioned between the diaphragm flexure and the resonator. The crystal retaining flexure is designed to exert a load on the resonator. The load results from the imparted force exerted on the crystal retaining flexure by the diaphragm flexure.

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