Detection of blockage in a porous member

    公开(公告)号:US12055521B2

    公开(公告)日:2024-08-06

    申请号:US17861560

    申请日:2022-07-11

    CPC classification number: G01N29/46 G01N29/04 G01N29/48 G01N2291/012

    Abstract: A method of detecting at least a blockage status in a porous member separating a measurement chamber of a device including a gas sensor positioned within the measurement chamber which is responsive to an analyte in an ambient environment to be sampled, includes emitting pressure waves from a pressure wave source which travel within the measurement chamber, measuring a first response via a first sensor responsive to pressure waves positioned at a first position within the measurement chamber, measuring a second response via a second sensor at a second position, different from the first position, and in fluid connection with the pressure wave source, determining the blockage status of the porous member based upon a functional relation of the first response and the second response.

    Vibronic Sensor
    8.
    发明申请
    Vibronic Sensor 审中-公开

    公开(公告)号:US20170343459A1

    公开(公告)日:2017-11-30

    申请号:US15535088

    申请日:2015-11-09

    Abstract: A vibronic sensor for determining and/or monitoring at least one process variable of a medium in a container. The sensor at least comprising: a unit which can oscillate mechanically; a driving/receiving unit; and an electronic unit. The driving/receiving unit is designed to excite, by means of an electrical excitation signal, mechanical oscillations in the unit which can oscillate mechanically and is designed to receive the mechanical oscillations of the unit which can oscillate mechanically, and to convert them into an electrical receiving signal. The electronic unit is designed to generate the excitation signal on the basis of the receiving signal and to determine the at least one process variable from the receiving signal; The electronic unit comprises at least one adaptive filter; and the electronic unit is designed to set the filter characteristic of the adaptive filter in such a way that there is a target phase shift between the excitation signal and the receiving signal.

    MEASUREMENT PROBE
    10.
    发明申请
    MEASUREMENT PROBE 审中-公开

    公开(公告)号:US20170276651A1

    公开(公告)日:2017-09-28

    申请号:US15510791

    申请日:2015-09-29

    Applicant: RENISHAW plc

    Inventor: Liam HALL

    Abstract: An ultrasound probe is described that comprises a transducer for transmitting and receiving ultrasound. The probe also includes a coupling element, such as a spherical ball of self-lubricating or hydrogel material, for contacting and acoustically coupling to an object to be inspected. The ultrasound probe also includes an analyser that is arranged to analyse the ultrasound signal received by the transducer and thereby determine if there is contact between the coupling element, and the surface of an object. The probe can thus be used for internal (ultrasound) inspection of objects as well as measuring the position of points on the surface of the object. The probe may be mountable to a coordinate measuring machine or other moveable platforms.

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