Ultrasonic flowmeter device
A technology of ultrasonic flow and ultrasonic transducers, applied in the field of testing, can solve the problems of high amplitude of ultrasonic signals, low applicability of ultrasonic flowmeters, and difficult design
Pending Publication Date: 2022-03-25
金卡水务科技有限公司
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Problems solved by technology
At the same time, for the flow measurement of different pipe diameters, the larger the diameter of the pipe, the higher the requirement for the amplitude of the ultrasonic signal required for measurement, and therefore the greater the voltage of the excitation signal required, it is necessary to add an additional lithium battery
[0004] However, the design of the above scheme is difficult, and the applicability of the ultrasonic flowmeter is low
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[0042] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application.
[0043] Flow measurement is an indispensable part of modern scientific measurement, and the design and implementation of ultrasonic measuring instruments can provide strong support for fluid measurement. Ultrasonic flowmeter is a non-contact instrument, which does not change the fluid in the pipeline. The measurement result is not affected by the temperature and density of the fluid, does not cause wear to the pipeline, h...
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The ultrasonic flowmeter device comprises an ultrasonic flow conversion module connected with an ultrasonic transducer and a main control module and used for outputting an excitation voltage signal under the control of the main control module so as to drive the ultrasonic transducer to emit an ultrasonic signal and calculate flow based on an ultrasonic echo signal; the excitation voltage self-adaptive module is connected with the ultrasonic flow conversion module and the main control module and is used for collecting an excitation voltage signal sent by the ultrasonic flow conversion module and sending the excitation voltage signal to the main control module, so that the main control module outputs a control signal according to a voltage value of the excitation voltage signal; the excitation voltage self-adaption module is further used for adjusting the output first voltage according to the control signal output by the main control module, the first voltage is used for providing the working voltage of the sound channel switching module, and the first voltage is larger than or equal to the voltage value of the excitation voltage signal. According to the invention, the working voltage of the high sound channel switching module can be adaptively adjusted according to the excitation voltage signal, and the applicability of metering different pipe diameters is improved.
Description
technical field [0001] The present application relates to the testing field, in particular to an ultrasonic flowmeter device. Background technique [0002] Ultrasonic flowmeters are widely used in civil and industrial measurement. The ultrasonic measurement scheme is: the ultrasonic flow conversion module periodically excites the voltage of the ultrasonic transducer, so that a pair of ultrasonic transducers generate excitation waveforms and echo signals; The conversion module receives and processes the echo signal to complete the collection of flow data. [0003] At present, if the ultrasonic flowmeter is to be adapted to different pipe diameters, it is necessary to consider the matching of the circuit parameters of the peripheral booster circuit and the signal processing circuit under the application of different pipe diameters, as well as the corresponding matching of the main control circuit board. At the same time, for flow measurement of different pipe diameters, the l...
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Login to View More IPC IPC(8): G01F1/66G01F1/667
CPCG01F1/662G01F1/667
Inventor 饶志建陈正海
Owner 金卡水务科技有限公司