Cómo trabajar para medidor de espesor ultrasónico profesional

How working for  Professional Ultrasonic Thickness Gauge : This unit is comprised of transimtting circuit, receiving circuit, Hi-freq uency oscillator, counter, central unit processor, keypad, and moniteretc., adopting ultrasonic pulse reflect principle. Similar to light-wave measure principal, the sonic pulse occurs from the unit travels throughthe material being measured till reach the interface and reflects backto to determine the thickness of the target material.