Laser ultrasonic property measurement apparatus
AssigneeToshiba Mitsubishi-Electric Industrial Systems Corporation
InventorMitsuhiko Sano
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Abstract
A mode of the present invention includes a transmitter (12) for shooting exciting laser light to an object of measurement (M) to excite ultrasonic waves in the object of measurement (M), a receiver (14) for shooting probing laser light to the object of measurement (M) to receive reflected light of probing laser light from the object of measurement (M) for detection of ultrasonic waves, a light blocking structure (16) having a first opening (16a) allowing the object of measurement (M) to pass therethrough and operable to accommodate the object of measurement (M), and a cover (18) operable to cover and open the first opening (16a).
Claims10
A laser ultrasonic property measurement apparatus, comprising:
- a transmitter configured to shoot exciting laser light to an object of measurement to excite ultrasonic waves in the object of measurement;
- a receiver configured to shoot probing laser light to the object of measurement to receive reflected light of the probing laser light from the object of measurement for detection of the ultrasonic waves;
- a light blocking structure having a first opening allowing the object of measurement to pass therethrough and adapted to accommodate the object of measurement;
- and
- a cover adapted to cover and open the first opening, wherein
- the light blocking structure comprises at least one second opening oriented in a perpendicular direction to an opening direction of the first opening, and at least one light blocking plate disposed between the second opening and a location to be irradiated by the exciting laser light.
Dependencies are inferred from the claim text.