Device for inspecting spot welds

Details Device for inspecting spot welds Device for inspecting spot welds

1979-02-27

1980-06-24

Myracle, Jerry W.

Measuring and testing

Vibration

By mechanical waves

73588, G01N 2900

Patent

active

042089174

ABSTRACT:
A device for inspecting spot welds which comprises a probe for receiving a reflected wave from an inspection material, a weld state display unit for displaying a waveform, a pulse interval and a number of pulses of the reflected wave, and a wave guide connected to an end portion of the probe, for guiding the reflected wave from the inspection material to the probe. The wave guide has an ultrasonic wave propagating section in the form of a cylinder and an internal ultrasonic wave absorbing section obtained by filling an inside hole of the cylinder with an ultrasonic wave absorbing material, the ultrasonic wave propagating section being so dimensioned that the length of an ultrasonic wave propagating path is within the range calculated from the following equation:

REFERENCES:
patent: 4099045 (1978-07-01), Okuda et al.

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