The first ultrasonic thickness gauge in the world was constructed by the polish engineer in the year 1967. The ultrasonic thickness gauge measures the speed of propagation of the ultra sonic waves in the give material, and then converts this speed to the thickness in millimeters.
This ultrasonic is used for precision measuring. This can be used on all metals, hard plates, glass, ceramics with perfect accuracy of 0.001 mm. The measuring ranges from 1 mm to 300 mm. It includes applications for assessing wall thinning due to corrosion erosion of pipes, pressure vessels, storage tanks, heat exchangers, etc., for checking dimensional materials like forging casting steel plates etc., for detection of defects like lamination, voids, bubbles etc.,
Ultrasonic gauge is portable and battery operated by batteries which give instant calibration.
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