MEASUREMENT METHOD AND MEASUREMENT DEVICE
    91.
    发明申请

    公开(公告)号:US20200348290A1

    公开(公告)日:2020-11-05

    申请号:US16963797

    申请日:2019-01-23

    摘要: A measurement method according to one embodiment, includes: preparing a detecting section on an upper surface of a measurement device with a reaction substance that can react specifically with a detection substance and a correction substance, wherein the detecting section measures signal values based on reactions of the reaction substance; supplying the detection substance onto the detecting section; supplying the correction substance onto the detecting section; measuring a first signal value of the signal values based on a specific reaction between the detection substance and the reaction substance; measuring a second signal value of the signal values based on a specific reaction between the correction substance and the reaction substance; and correcting the first signal value using the second signal value.

    CROWDED SENSOR
    92.
    发明申请
    CROWDED SENSOR 审中-公开

    公开(公告)号:US20200309738A1

    公开(公告)日:2020-10-01

    申请号:US16369401

    申请日:2019-03-29

    申请人: QORVO US, INC.

    发明人: Ian Harmon

    IPC分类号: G01N29/02 H01L41/319 H03H9/02

    摘要: A sensor device includes a sensor, which may include an acoustic wave resonator structure, having a surface to which analyte capture ligand is bound. The device also includes a crowding agent to reduce the rate of binding of an analyte in a sample composition to the analyte capture ligand when the sample composition is flowed across the surface of the sensor.

    Amplification method using a mechanical resonator

    公开(公告)号:US10749471B2

    公开(公告)日:2020-08-18

    申请号:US16066473

    申请日:2016-12-20

    摘要: An electromechanical amplifying method including a transducing an electrical signal to a mechanical resonator having a mechanical resonance mode with an angular frequency ω0; transducing the non-linear oscillations of the resonator into a transduced electrical signal; and filtering the transduced electrical signal to obtain an output signal, the signal transduced to the resonator being obtained by adding a first input signal of a first amplitude and a first angular frequency ωs and a second pump signal of a second amplitude greater than the first amplitude and of a second angular frequency ωs that is different from the first angular frequency, the first and second angular frequencies being close to the angular frequency ω0 of the mechanical resonator and the second pump signal being chosen from a range of angular frequencies ωp and amplitudes in which the resonator is actuated in a non-linear regime.

    METHANE GAS SENSOR
    97.
    发明申请
    METHANE GAS SENSOR 审中-公开

    公开(公告)号:US20200249202A1

    公开(公告)日:2020-08-06

    申请号:US16810325

    申请日:2020-03-05

    发明人: Igor Pavlovsky

    摘要: An apparatus and method for detection of methane in an environment, including a housing with a sensor printed circuit board and a processor printed circuit board interconnected to and thermally insulated from the sensor printed circuit board. The sensor printed circuit board includes a first tuning fork isolated from the environment, and a second tuning fork exposed to the environment. The tuning forks are attached to opposite sides of the sensor printed circuit board. The processor printed circuit board includes processing circuitry interconnected to the first tuning fork and the second tuning fork, which receives vibration frequency signals therefrom, and is programmed to determine a frequency difference between the frequency of vibration of the first tuning fork and the frequency vibration of the second tuning fork, and if the frequency difference is greater than a predetermined threshold, then setting an alarm to indicate the presence of methane.

    Systems and methods to detect a fluid induced instability condition in a turbomachine

    公开(公告)号:US10704409B2

    公开(公告)日:2020-07-07

    申请号:US15882431

    申请日:2018-01-29

    摘要: In one example embodiment, a fluid induced instability detection system is provided that monitors various vibration characteristics of a turbomachine, collects vibration data in real-time, and uses the vibration data to detect and analyze changes in various operating parameters such as vibration, speed, and loading conditions, and to provide an indication of a vibration anomaly and/or potential operational risk in one or more components of the turbomachine. The vibration data can be particularly associated with certain components that are directly or indirectly impacted by a modification in process fluid flow characteristics or lubrication oil flow characteristics in the turbomachine due to various reasons such as process fluid flow disturbances, lubricating oil flow disturbances, and/or a change in turbomachine operational parameters. The fluid induced instability detection system detects abnormalities in the vibration data and provides an indication of one or more potential faults in the turbomachine.

    SYSTEMS AND METHODS FOR OBTAINING DOWNHOLE FLUID PROPERTIES

    公开(公告)号:US20200208515A1

    公开(公告)日:2020-07-02

    申请号:US16236975

    申请日:2018-12-31

    IPC分类号: E21B49/08 G01N9/00 G01N29/02

    摘要: A downhole fluid analysis device includes a piezoelectric helm resonator, an optical sensor, and an electromagnetic spectroscopy sensor. The piezoelectric helm resonator includes a strain bar and a pair of electrodes coupled to opposite sides of the strain bar. The piezoelectric helm resonator further includes a pair of tines, in which a first tine of the pair of tines is coupled to opposite ends of the strain bar, the pair of tines each having an arc, and such that strain across a transverse face of the strain bar generates a resonance response from the pair of tines. The optical sensor is positioned centrally with respect to the piezoelectric helm resonator, and the spectroscopy sensor is positioned symmetrically with respect to the piezoelectric helm resonator in at least on direction.