Ultrasonic liquid level gauge and liquid level measurement method

A technology of ultrasonic and liquid level gauge, which is applied in the direction of liquid/fluid solid measurement, measuring device, liquid level indicator, etc., which can solve the problems of inconvenient use, low measurement accuracy and complex structure.

Active Publication Date: 2019-07-12
杭州美仪自动化有限公司
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Problems solved by technology

However, the ultrasonic liquid level gauges currently on the market are complex in structure, inconve...

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  • Ultrasonic liquid level gauge and liquid level measurement method
  • Ultrasonic liquid level gauge and liquid level measurement method
  • Ultrasonic liquid level gauge and liquid level measurement method

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with accompanying drawing.

[0036] Such as figure 1 As shown, an ultrasonic liquid level gauge includes a power supply module 1 , a control module 2 , a sensor, an ultrasonic transmitting module 3 , an ultrasonic receiving module 4 , a temperature compensation module 5 , an output module 6 and piezoelectric ceramics 7 . The power module 1 converts the externally connected 24V voltage into the control module 2, ultrasonic transmitting module 3, ultrasonic receiving module 4, The temperature compensation module 5 and the output module 6 supply power. The control module 2 transmits the ultrasonic control signal to the ultrasonic transmitting module through the single-chip microcomputer, thereby controlling the transmitting frequency of the ultrasonic transmitting module; The 300V high-voltage alternating current excites the piezoelectric ceramic 7 to generate ultrasonic waves. The ultrasonic receiving...

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Abstract

The invention discloses an ultrasonic liquid level gauge and a liquid level measurement method. ultrasonic liquid level gauges in current markets have problems, including, complex structure, use inconvenience and relatively low measurement precision. The disclosed ultrasonic liquid level gauge comprises a power module, a control module, a sensor, an ultrasonic transmission module, an ultrasonic reception module, a temperature compensation module and piezoelectric ceramic. The power module supplies power to the control module, the ultrasonic transmission module, the ultrasonic reception module,the temperature compensation module and the output module through a first voltage stabilizer, a second voltage stabilizer, a switch voltage stabilizer and an ultra-low voltage stabilizer. The temperature compensation module measures an environment temperature through the temperature sensor and transmits the temperature to the control module. The control module transmits an ultrasonic control signal to the ultrasonic transmission module through a single-chip machine; and the ultrasonic transmission module after boosting the ultrasonic control signal via a high-frequency transformer transmits the signal to the piezoelectric ceramic. The ultrasonic liquid level gauge can avoid the problem of inaccurate measurement caused by a blind zone.

Description

technical field [0001] The invention belongs to the technical field of liquid level detection, and in particular relates to an ultrasonic liquid level gauge and a liquid level detection method thereof. Background technique [0002] With the development of science and technology, the solutions of distance measurement technology are becoming more and more diversified, especially the distance measurement technology applied to the measurement of material level. Now the principle of material level measurement is mainly divided into contact type and non-contact type, non-contact type Because of the characteristics of no direct contact with the medium, it is easy to use and has unique advantages in some special working conditions, while the non-contact type is mainly based on the principle of ultrasonic waves. However, the ultrasonic liquid level gauges currently on the market have complex structures, are inconvenient to use, and have low measurement accuracy, so it is difficult to...

Claims

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Application Information

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IPC IPC(8): G01F23/296
CPCG01F23/2962
Inventor 徐冬荣磊汪寅波陈定游李山周凯
Owner 杭州美仪自动化有限公司
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