FLUID FLOW MEASURING APPARATUS
    1.
    发明申请

    公开(公告)号:US20250027800A1

    公开(公告)日:2025-01-23

    申请号:US18708943

    申请日:2022-11-09

    Abstract: Apparatus (1) for measuring fluid flow is disclosed. The apparatus comprises first, second and third ultrasonic transducers (8), the second and third ultrasonic transducers arranged to receive an ultrasonic wave (13) from the first ultrasonic transducer, wherein the second and third ultrasonic transducers are spaced apart by a given distance. The apparatus further comprises a circuit (6) comprising a phase comparator (21) arranged to compare first and second signals (20) from the second and third ultrasonic transducers.

    ULTRASONIC FLOW MEASUREMENT
    4.
    发明公开

    公开(公告)号:US20230243682A1

    公开(公告)日:2023-08-03

    申请号:US17926184

    申请日:2021-05-14

    CPC classification number: G01F1/667

    Abstract: A method of determining flowrate of a fluid (7) in a pipe is disclosed. The flowrate is determined using a flowmeter having first and second ultrasonic transducers (10; FIG. 8A) separated along the pipe by a given distance (D; FIG. 1) and inclined so that waves in the fluid propagate at a given path angle (θ; FIG. 1). For a given inner pipe diameter (d; FIG. 1), there is a given integer number of reflections between the first and second ultrasonic transducers. The method comprises obtaining flow rate measurements using wave packets (18) corresponding to an integer number of reflections which is less than said given number.

    Mass spectrometry
    6.
    发明授权

    公开(公告)号:US11600483B2

    公开(公告)日:2023-03-07

    申请号:US16332570

    申请日:2017-09-12

    Abstract: A method of carrying out mass spectrometry, comprising: using an electrostatic or electrodynamic ion trap to contain a plurality of ions, each ion having a mass to charge ratio, the ions having a first plurality of mass to charge ratios, each ion following a path within the electrostatic or electrodynamic ion trap having a radius; and for each of a second plurality of the mass to charge ratios: modulating the radii of the ions in a mass to charge ratio-dependent fashion dependent upon the mass to charge ratio; fragmenting the ions thus modulated in a radius-dependent fashion; and determining a mass spectrum of the ions.

    HABER-BOSCH CATALYST COMPRISING AN ANION-VACANT LATTICE

    公开(公告)号:US20210114005A1

    公开(公告)日:2021-04-22

    申请号:US17050313

    申请日:2019-04-24

    Abstract: A composition for catalysis of a Haber-Bosch process comprises an anion vacant lattice and a Haber-Bosch catalyst (e.g. Fe Ru). Suitable anion vacant lattices include oxynitrides and oxides, which may be doped or undoped, including CeaMbO2-XNY (Formula III) M is one or more elements with a valence lower than +4. “a” and “b” are independently in the range 0.05 to 0.95, with the proviso that “a” and “b” together sum to 1 (approximately). X is greater than 0 and less than 2. Y is greater than zero and less than or equal to X. A process employing the composition produces ammonia.

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