ULTRASONIC WAVEGUIDE SENSOR AND APPARATUS FOR DISTRIBUTED PHYSICAL PARAMETER MEASUREMENTS

    公开(公告)号:US20240361278A1

    公开(公告)日:2024-10-31

    申请号:US18648375

    申请日:2024-04-27

    CPC classification number: G01N29/2462 G01N29/07 G01N29/348

    Abstract: An apparatus and method for distributed physical parameter measurements of the surrounding environment is disclosed. The apparatus can include a waveguide with an elongated body configured with three gratings along the body where each of the three gratings is configured to fully or partially reflect an acoustic wave on the waveguide at a different frequency than the other gratings of the three gratings. Further, each of the three gratings can comprise discontinuities in the grating configured to reflect one or more frequencies of acoustic waves, and each of the discontinuities for each of the three gratings has an internal geometry configured according to fractions of an acoustic wave's frequency and corresponding wavelength.

    Tubular sleeve for measuring the viscoelasticity of a product to be analysed

    公开(公告)号:US20230258607A1

    公开(公告)日:2023-08-17

    申请号:US18004775

    申请日:2021-06-30

    Applicant: RHEAWAVE

    Abstract: An acoustic device for localized and contactless measurement of viscoelasticity of a product to be analyzed. The device includes a generator of high-frequency ultrasonic pulses; an ultrasonic receiver for receiving the high-frequency ultrasonic pulses; the generator and the receiver being disposed relative to each other such that the high-frequency ultrasonic pulses propagate within the sample to be analyzed. The generator and the receiver are mounted on a tubular connecting sleeve intended to connect together two portions of a pipe in which the product to be analysed is intended to move from one portion to another. The tubular sleeve includes a first mounting zone for the generator and a second mounting zone for the receiver. The tubular sleeve is non-anechoic in the first and second mounting zones and, according to a circumferential distribution, anechoic between the first and second mounting zones.

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