METHOD FOR INSPECTION USING ULTRASONIC WAVE

• Main Authors: TOYOZUMI TAKASHI, YOKOMIZO HODAKA, SUZUKI SHUHEI, OBATA AKIHIKO, OTSUBO MAKOTO
• Format: Patent
• Language: English; Japanese
• Published: 19.09.2019
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To provide a method for inspection which can be used for inspecting, by ultrasonic waves, an inspection target material under a temperature higher than the atmospheric temperature efficiently and appropriately.SOLUTION: The present invention relates to a method for inspection using an ultrasonic wave including the following steps 201 and 301 of: blowing a fluid to an inspection target material from a blowing port in a situation in which the surface temperature of the material is set to be higher than the atmospheric temperature by more than 2 degrees (step 201); and inspecting the material using an ultrasonic wave after or concurrently with the step 201 (step 301), the inspection in step 301 satisfying the condition that the refraction attenuation factor is 1.5% at a maximum in the measurement of the echo intensity.SELECTED DRAWING: Figure 3 【課題】雰囲気温度より高温の状態にある被検査材料を適切かつ効率よく超音波検査できる検査方法を提供する。【解決手段】以下の工程２０１乃至工程３０１を含む超音波を用いた検査方法であって、工程２０１が被検査材料の表面温度−雰囲気温度＞２℃の状態で行われ、工程３０１における超音波を用いた検査が、エコー強度の測定における屈折減衰率≦１．５％を満たす、被検査材料の検査方法。工程２０１：被検査材料に対して流体を吹き付け口から吹き付ける工程。工程３０１：工程２０１の後、又は工程２０１と同時に、被検査材料を、超音波を用いて検査する工程。【選択図】図３