A Piston Type Ultrasonic Probe for Non-immersion Ultrasonic Liquid Level Measurement System

Abstract

The invention provides a piston type ultrasonic probe for a non-immersive ultrasonic liquid level measuring system. The piston type ultrasonic probe comprises an ultrasonic energy converter which is positioned in a probe housing, wherein a through hole through which the ultrasonic energy converter can pass is formed in the upper bottom of the probe housing; a protruded stopping part is arranged onthe sidewall of the ultrasonic energy converter; a first sliding block or a first slide rail is arranged on the edge of the through hole in the upper bottom of the probe housing; a second slide railor a second sliding block is arranged on the sidewall of the ultrasonic energy converter; the ultrasonic energy converter can slide up and down in the probe housing by the cooperation of the slide rails fitting the sliding blocks; a coupling force pointer is arranged on the sidewall of the ultrasonic energy converter; a transparent area is formed in the probe housing; scale lines are marked in thetransparent area; a pressing spring is arranged at the bottom part of the probe housing; and a guide hole through which a conductor of the ultrasonic energy converter passes is formed in the lower bottom part of the probe housing. According to the piston type ultrasonic probe, the coupling force pointer is used for recording the starting position of measuring of the ultrasonic energy converter, and the scale pointed by the coupling force pointer is kept unchanged during the measurement process, and thus the coupling force can be kept consistent.

Description

technical field [0001] The invention relates to a piston-type ultrasonic probe for a non-immersion ultrasonic liquid level measurement system, belonging to the technical field of ultrasonic liquid level measurement. Background technique [0002] Ultrasound refers to a mechanical oscillation with a frequency higher than 20KHz that propagates in elastic media. Because of its good directionality, strong penetrating power, and high energy, ultrasonic waves are widely used in testing and measurement in machinery manufacturing, petrochemical, aerospace and other fields. [0003] Because the wavelength of ultrasonic waves is shorter than that of ordinary sound waves and has strong penetrability in media, ultrasonic waves can be used in technical fields such as flaw detection, thickness measurement, distance measurement, liquid level measurement, and ultrasonic imaging. [0004] The application of ultrasonic waves in liquid level measurement mainly uses the physical properties of u...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the non-immersed ultrasonic liquid level measurement system in the measurement process, the ultrasonic probe needs to be continuously moved on the surface of the measured container, resulting in low accuracy and reliability of the measurement results caused by the inconsistency between the ultrasonic probe and the surface of the container being tested. The invention provides a piston-type ultrasonic probe for the non-immersion ultrasonic liquid level measurement system, which uses the coupling strength pointer to record the initial position of the ultrasonic transducer measurement, and ensures that the scale pointed by the coupling strength pointer is not correct during the measurement process. Change to ensure the same coupling strength

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