Ultrasonic thickness measurement instrument having probe protecting and stabilizing function

Abstract

The invention relates to an ultrasonic thickness measurement instrument having a probe protecting and stabilizing function. The ultrasonic thickness measurement instrument includes a host, a connection wire and a detection box. The detection box is therein provided with a lift mechanism and a fixing mechanism. The lift mechanism includes a drive assembly, a telescopic rack, a lift board, an ultrasonic probe, a fixed block, a movable block and a hinge block. The fixing mechanism includes an air exhaust assembly and a movable assembly. The air exhaust assembly includes an air exhaust chamber, aconnection pipe and a pressing plate. The air exhaust chamber is therein provided with a reciprocating unit, a reciprocating rod, a piston and an air exhaust cylinder. The reciprocating unit includesa first motor, a semi wheel gear, a movable frame and two racks. According to the invention, the ultrasonic probe can be retracted into the detection box through the lift mechanism, so that damage ofthe ultrasonic probe due to collision can be avoided. The ultrasonic probe can be fixed together with a to-be-measured object through the fixing mechanism, so that change of a detection position of the ultrasonic probe can be avoided and influence on measurement precision is avoided.

Description

technical field [0001] The invention relates to the field of ultrasonic detection equipment, in particular to an ultrasonic thickness gauge with probe protection and stabilization functions. Background technique [0002] The ultrasonic thickness gauge measures the thickness according to the principle of ultrasonic pulse reflection. When the ultrasonic pulse emitted by the probe passes through the object to be measured and reaches the interface of the material, the pulse is sent back to the probe. By accurately measuring the propagation time of the ultrasonic wave in the material, the Determine the thickness of the material being measured. Ultrasonic thickness gauges can measure the thickness of various pipes and pressure vessels in production equipment, detect their degree of thinning after being corroded during use, and can also accurately measure various plates and various processed parts. [0003] The existing ultrasonic thickness gauges generally rely on the ultrasonic ...

AI Technical Summary

Problems solved by technology

[0003] The existing ultrasonic thickness gauges generally rely on the ultrasonic probe against the detected object artificially. The ultrasonic probe is easy to change the detection position due to factors such as the user's hand shaking or arm collision, which reduces the detection accuracy. Not only that, The existing ultrasonic has no shelter, and it is exposed to the outside for a long time, and it is easy to be damaged by collision, which brings economic losses to people and reduces the practicability of the ultrasonic thickness gauge.

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