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Novel time-difference method ultrasonic flowmeter

An ultrasonic and time difference method technology, applied in the field of new time difference method ultrasonic flowmeter, can solve the problems of the influence of measurement accuracy, the inability to accurately and timely reflect the fluid flow state, and the inability to work at the same time, and achieve the effect of improving accuracy

Inactive Publication Date: 2018-10-23
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the traditional ultrasonic flowmeter, the ultrasonic transducer is used as both a transmitter and a receiver. It cannot work at the same time and is in an intermittent sampling state. The sampling of downstream and upstream flow is not at the same time, and it cannot accurately and timely reflect the flow state of the fluid. , will have a great impact on the accuracy of measurement, and it is imminent to solve the problem of synchronous sampling

Method used

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  • Novel time-difference method ultrasonic flowmeter
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Embodiment Construction

[0017] Below in conjunction with accompanying drawing, further illustrate the present invention with embodiment. But this embodiment is only illustrative, and the protection scope of the present invention is not limited by this embodiment.

[0018] Such as figure 1 As shown, a novel time-of-flight ultrasonic flowmeter includes a novel ultrasonic transducer 23 , a novel ultrasonic transducer 25 , reflectors 22 , reflectors 24 , and pipes 21 . The inclined surface of the new ultrasonic transducer emits ultrasonic signals, and after being reflected by the reflector, the vertical surface can receive the ultrasonic signals, and the upstream and downstream ultrasonic signals can be sent and received at the same time, which reduces the error caused by different measurement times and improves the measurement efficiency. accuracy.

[0019] Such as figure 2 As shown, the new ultrasonic transducer includes a matching layer 1, a matching layer 7, a piezoelectric sheet 8, a piezoelectr...

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Abstract

The invention relates to a novel time-difference method ultrasonic flowmeter. A novel ultrasonic transducer is provided with a matching layer, insulating glue, a piezoelectric plate, an outer shell and a wire; the novel ultrasonic transducer has a two-face structure, one face is responsible for sending signals, and the other face is responsible for receiving the signals. By changing the installation mode of the ultrasonic flowmeter, downstream and upstream sampling has synchronism, flow velocity change within short time can be better captured, and the measurement precision is improved.

Description

technical field [0001] The invention relates to an ultrasonic flowmeter, in particular to a novel time-difference method ultrasonic flowmeter. Background technique [0002] Ultrasonic flowmeter is a non-contact flow measuring instrument, which has no effect on the fluid state during the measurement process, and has the characteristics of high precision and high stability. In the traditional ultrasonic flowmeter, the ultrasonic transducer acts as both a transmitter and a receiver. It cannot work at the same time and is in an intermittent sampling state. The sampling of downstream and upstream flow is not at the same time, and it cannot accurately and timely reflect the flow state of the fluid. , will have a great impact on the accuracy of measurement, and it is imminent to solve the problem of synchronous sampling. Contents of the invention [0003] The purpose of the present invention is to improve the synchronism of data acquisition, and a novel time-difference method ul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/66
CPCG01F1/667
Inventor 张凯刘明祥杨奉利
Owner CHINA JILIANG UNIV