Straight Beam Type
The ultrasonic probe / ultrasonic transducer to produce ultrasonic beam propagates straight direction (90° direction of test surface)
Dual Element Type
One case has dual element sending and receiving of sound wave with acoustic separation, the ultrasonic probe / ultrasonic transducer propagates angle longitudinal wave (straight beam at 90° to test specimen surface).
○Scanning is possible with scale.
○Easy to read transducer position, to use the coordinates of measurement makes measurement accuracy and variation make high and small.
○Speed increases and detection efficient becomes high.
Shear Wave Type