Closed container liquid level position detection device

A technology of liquid level position and detection device, applied in the direction of measurement device, liquid level indicator, lubrication indicator device, etc., can solve the problems of instability and inaccurate measurement, and achieve system stability, measurement system accuracy, and good real-time performance. Effect

Inactive Publication Date: 2021-02-09
彭瞳生
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a detection device for the liquid level position of a c

Method used

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  • Closed container liquid level position detection device
  • Closed container liquid level position detection device
  • Closed container liquid level position detection device

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Embodiment

[0022] see figure 1 , a liquid level position detection device in a closed container, comprising a sound source 1, an interdigital transducer 2, a double-layer structure flexible body 3, and a hollow plastic tube 4, the sound source 1 and the interdigital transducer 2 are left and right symmetrically distributed, The sound wave of the sound source 1 is a flexible surface acoustic wave, which will propagate along the surface of the double-layer structure flexible body 3. A double-layer structure flexible body 3 is arranged under the sound source 1 and the interdigital transducer 2, and the interdigital transducer The device 2 converts the vibration caused by the sound wave propagating along the surface of the double-layer structure flexible body 3 into electrical signals through the piezoelectric effect, and the lower end of the double-layer structure flexible body 3 is fixedly connected with a hollow plastic tube 4 .

[0023] see figure 1 , the upper layer of the double-layer...

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Abstract

The invention belongs to the technical field of liquid level detection devices, and particularly relates to a closed container liquid level position detection device which comprises a sound source, aninterdigital transducer, a double-layer structure flexible body and a hollow plastic pipe, the sound source and the interdigital transducer are distributed in a bilateral symmetry mode, and the double-layer structure flexible body is arranged below the sound source and the interdigital transducer. The lower end of the double-layer structure flexible body is fixedly connected with a hollow plasticpipe. The liquid level changes the propagation plane, the height of the liquid level is measured by changing the detected current after the piezoelectric effect, the device has the advantages of goodreal-time performance, high voltage resistance, electromagnetic interference resistance, wireless transmission and the like, the measurement system is accurate, and the system is more stable due to the double-layer structure.

Description

technical field [0001] The invention relates to the technical field of liquid level detection devices, in particular to a liquid level position detection device for a closed container. Background technique [0002] At present, airtight containers are mostly used to hold liquids, and the position of the liquid held in airtight containers is not easy to obtain, and a special liquid level position detection device is required for detection. [0003] However, there are certain problems in the existing liquid level position detection devices, such as the measurement is not accurate enough, and it is also easily disturbed to cause unstable detection. Therefore, it is necessary to improve the prior art. Contents of the invention [0004] The object of the present invention is to provide a detection device for the liquid level position of a closed container, which solves the problem of inaccurate and unstable measurement of the existing detection device. [0005] In order to ach...

Claims

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Application Information

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IPC IPC(8): G01F23/296
CPCG01F23/296
Inventor 不公告发明人
Owner 彭瞳生
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