Ultrasonic ranging device

Abstract

The invention provides an ultrasonic ranging device. The ultrasonic ranging device comprises a tube body, two ends of which are communicated; a first L-shaped sealing ring and a second L-shaped sealing ring, which are coaxially arranged in the tube body; an ultrasonic probe, which is arranged between the first L-shaped sealing ring and the second L-shaped sealing ring; probe protection rings, which are in a shape of a circular ring, are coaxially fixedly disposed on the inner wall of the tube body, and are used for fixing the ultrasonic probe; a closed cavity, which is formed among the probe protection ring, the second L-shaped sealing ring and the inner wall of the tube body; a reflecting plate, which is fixedly connected with the second L-shaped sealing ring; a baffle ring, which is disposed on the inner wall of one end of the tube body. The reflecting plate and the second L-shaped sealing ring is capable of moving along the axial direction of the tube body, and the baffle ring is used for limiting the reflecting plate and the second L-shaped sealing ring to move out of the pipe body. The ultrasonic ranging device has advantages of simple structure, practicability, reliability, convenient and fast operation, and capability of detecting liquid level in turbid liquid.

Description

technical field [0001] The invention relates to a distance measuring device, in particular to an ultrasonic distance measuring device. Background technique [0002] Due to the strong directivity of ultrasonic waves, slow energy consumption, and long distances in the medium, ultrasonic waves are often used for distance measurement, and it is often faster and more convenient to use ultrasonic range finders to detect. [0003] At present, engineers also need to often measure distances in high-sound attenuation, high-concentration, and turbid liquids. For example, when cement is poured in construction projects, it is necessary to measure the pouring position. However, in high-concentration turbid liquids, it is difficult to generate ultrasonic waves, and the attenuation coefficient of ultrasonic waves is large, so it is impossible to effectively generate and receive ultrasonic waves. When measuring distance, there are problems that ultrasonic waves cannot be effectively generat...

AI Technical Summary

Problems solved by technology

However, in high-concentration turbid liquids, it is difficult to generate ultrasonic waves, and the attenuation coefficient of ultrasonic waves is large, so it is impossible to effectively generate and receive ultrasonic waves. When measuring distance, there are problems that ultrasonic waves cannot be effectively generated, and the ultrasonic transmission distance is short

[0004] Therefore, the ordinary ultrasonic distance measuring device in the prior art is not suitable for distance measurement in high sound attenuation, high concentration, and turbid liquids. How to effectively generate and receive ultrasonic waves in high sound attenuation, high concentration, and turbid liquids, It has always been a difficult problem for ultrasonic distance measurement in such liquids

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