noun
ultrasonic flaw detector; ultrasonic test instrument
Technical term for a device that uses ultrasonic waves to detect internal flaws in materials, commonly used in non-destructive testing.
超音波探傷器で溶接部の内部欠陥を調べる。
Inspect internal defects in the weld using an ultrasonic flaw detector.
Compound of 超音波 (ultrasonic wave) + 探傷 (flaw detection) + 器 (instrument).