Device and system utilizing ultrasonic waves in spectrophotometrically monitoring the quality of water in swimming-pools

    公开(公告)号:US11946278B2

    公开(公告)日:2024-04-02

    申请号:US17267388

    申请日:2019-08-06

    Abstract: A cuvette for treating and characterizing water via ultrasonic waves and optical measurements comprises at least one ultrasonic transducer for treating said water by introducing at least one ultrasonic pulse into the water. The at least one ultrasonic pulse either varies parameters of the water, and/or moves and repositions particles within the water. The cuvette further comprises a spectrometry device for measuring spectral components of light and at least one light source for irradiating the water with irradiation light. The at least one of the parameters of the water is determined via: (a) measuring the spectral components of light prior to treating the water with said at least one ultrasonic transducer, (b) treating the water with said at least one ultrasonic transducer, (c) remeasuring the spectral components of light to get the difference in said spectral components of light, and (d) determining the value of the at least one parameter of the water based on the difference in said spectral components of light.

    METHOD AND MEASURING DEVICE FOR DETERMINING A MEASURED QUANTITY RELATING TO A FLOW

    公开(公告)号:US20230221155A1

    公开(公告)日:2023-07-13

    申请号:US18152466

    申请日:2023-01-10

    CPC classification number: G01F1/667 G01F1/7082 G01F1/712

    Abstract: A method determines a measured quantity relating to the flow of a fluid through a measuring tube, in two propagation directions, and a receive signal is captured. A transit time difference is determined depending on the position of the main maximum of a cross-correlation of the receive signals. Whereupon the measured quantity is determined depending on the transit time difference, and the transmitting ultrasonic transducer is controlled in each case with an excitation signal. The excitation signal has a fixed carrier frequency. The excitation signal has a phase shift and/or an envelope with a plurality of temporally spaced maxima, and/or, if a trigger condition is fulfilled, the fulfilment of which depends on the height of the main maximum and/or of at least one secondary maximum of the cross-correlation. The determination of the measured quantity is modified compared with a normal operating mode and/or a message is output.

    DETECTION OF FLOW RATE OVER DYNAMIC RANGE
    6.
    发明申请

    公开(公告)号:US20180195888A1

    公开(公告)日:2018-07-12

    申请号:US15402533

    申请日:2017-01-10

    Abstract: Aspects of the disclosure are directed to a obtaining a first plurality of signals associated with a fluid flow in a pipe, processing, by a processor, the first plurality of signals to obtain a first plot of power associated with first vortices in the fluid flow and a flow rate of the fluid flow in the pipe over a first flow rate range, determining, by the processor, that a maximum value of the power in the first plot corresponds to a maximum value of the flow rate included in the first flow rate range or that the power is increasing as a function of the flow rate towards an end of the first plot, and based on said determining, multiplying, by the processor, values of the first flow rate range to obtain a second flow rate range.

    FLOW MEASURING DEVICE, AS WELL AS USE OF SUCH DEVICE AND METHOD FOR ASCERTAINING FLOW VELOCITY
    8.
    发明申请
    FLOW MEASURING DEVICE, AS WELL AS USE OF SUCH DEVICE AND METHOD FOR ASCERTAINING FLOW VELOCITY 审中-公开
    流量测量装置,以及这样的装置的使用以及用于消除流动速度的方法

    公开(公告)号:US20150377691A1

    公开(公告)日:2015-12-31

    申请号:US14432221

    申请日:2013-09-19

    CPC classification number: G01F25/0053 G01F1/66 G01F1/692 G01F1/7082 G01F7/00

    Abstract: A flow measuring device for ascertaining a corrected measured value of a flow velocity and/or a corrected mass flow of a medium, especially a gas, in a measuring tube, including: an apparatus for ascertaining a first measured value of flow velocity and/or mass flow of the medium by thermal, mass flow measurement; an apparatus for ascertaining velocity of sound and/or frequency dependent damping of an acoustic signal, especially an ultrasonic signal, in the medium and/or an apparatus for ascertaining an optical, wavelength dependent absorption of an optical and/or excited fluorescence of the medium, and an evaluation unit for correcting the ascertained first measured value of mass flow or flow velocity based on the ascertained sound velocity values and/or the frequency dependent, ascertained damping values of the acoustic signal and/or the ascertained absorption values of the optical signal and/or the florescence values of the medium, and method for ascertaining a corrected measured value of flow velocity and/or mass flow, and use of the device and method.

    Abstract translation: 一种用于确定测量管中的介质,特别是气体的流速和/或校正质量流的校正测量值的流量测量装置,包括:用于确定流速的第一测量值和/或 通过热质量流量测量介质的质量流量; 用于确定介质中的声信号,特别是超声波信号的声速和/或频率相关阻尼的装置和/或用于确定介质的光学和/或激发荧光的光学,波长依赖性吸收的装置 以及评估单元,用于基于所确定的声速值和/或频率依赖确定的声信号的阻尼值和/或所确定的光信号吸收值来校正所确定的质量流量或流速的第一测量值 和/或介质的荧光值,以及用于确定校正的流速和/或质量流量的测量值的方法以及该装置和方法的使用。

    Velocity based method for determining air-fuel ratio of a fluid flow
    9.
    发明授权
    Velocity based method for determining air-fuel ratio of a fluid flow 有权
    用于确定流体流动的空燃比的基于速度的方法

    公开(公告)号:US09057635B2

    公开(公告)日:2015-06-16

    申请号:US12874728

    申请日:2010-09-02

    CPC classification number: G01F1/74 G01F1/34 G01F1/666 G01F1/7082

    Abstract: A method for determining one or more fluid flow parameters for a fluid flowing within a pipe is provided. The fluid is a mixture of solid particles and gas. The method includes the steps of: a) providing a meter operable to determine the velocity of the fluid flow through the pipe, which meter is substantially insensitive to the particulate/gas mass ratio of the fluid flow; b) determining the velocity of the fluid flow within the pipe using the meter; and c) determining a particulate/gas mass ratio using a density value for the gas within the flow and the determined fluid flow velocity.

    Abstract translation: 提供了一种用于确定在管道内流动的流体的一个或多个流体流动参数的方法。 流体是固体颗粒和气体的混合物。 该方法包括以下步骤:a)提供可操作以确定通过管道的流体流速度的仪表,该仪表对流体流动的颗粒/气体质量比基本上不敏感; b)使用仪表确定管道内的流体流速; 以及c)使用所述流体内的气体的密度值和所确定的流体流速确定颗粒/气体质量比。

    Temperature verification for ultrasonic flow meters
    10.
    发明授权
    Temperature verification for ultrasonic flow meters 有权
    超声波流量计温度验证

    公开(公告)号:US08974114B2

    公开(公告)日:2015-03-10

    申请号:US13462613

    申请日:2012-05-02

    Abstract: Apparatus and methods for verifying temperature measurements in an ultrasonic flow meter. In one embodiment, an ultrasonic flow metering system includes a passage for fluid flow, a temperature sensor, and an ultrasonic flow meter. The temperature sensor is disposed to measure temperature of fluid flowing in the passage. The ultrasonic flow meter includes a plurality of pairs of ultrasonic transducers and control electronics. Each pair of transducers is configured to form a chordal path across the passage between the transducers. The control electronics are coupled to the ultrasonic transducers. The control electronics are configured to measure speed of sound between each pair of transducers based on ultrasonic signals passing between the transducers of the pair. The control electronics are also configured to determine, based on the measured speeds of sound, whether a measured temperature value provided by the temperature sensor accurately represents temperature of the fluid flowing in the passage.

    Abstract translation: 用于验证超声波流量计中的温度测量的装置和方法。 在一个实施例中,超声波流量计量系统包括用于流体流动的通道,温度传感器和超声波流量计。 设置温度传感器以测量在通道中流动的流体的温度。 超声波流量计包括多对超声波换能器和控制电子装置。 每对换能器被配置成跨越换能器之间的通道形成弦道。 控制电子器件耦合到超声换能器。 控制电子设备被配置为基于在对的换能器之间通过的超声信号来测量每对换能器之间的声音速度。 控制电子设备还被配置为基于所测量的声速来确定由温度传感器提供的测量温度值是否准确地表示在通道中流动的流体的温度。

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