Ultrasonic flaw detector and ultrasonic flaw detecting method

• Main Authors: Miura Takahiro, Ochiai Makoto, Yamamoto Satoshi, Yamamoto Setsu, Mitsuhashi Tadahiro, Nagai Satoshi, Takabayashi Junichi, Watanabe Kazumi, Adachi Hiroyuki, Semboshi Jun, Otsuka Masaru
• Format: Patent
• Language: English
• Published: 27.09.2016
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

An ultrasonic flaw detector including an ultrasonic probe for emitting an ultrasonic wave on an object to be inspected and receiving a reflected ultrasonic wave from the object, a drive element control unit for controlling a plurality of ultrasonic elements to emit an ultrasonic wave from the ultrasonic probe and to control a reflected ultrasonic wave from the object, and a calculation unit for obtaining, by using a refraction angle of the ultrasonic wave at a time of the ultrasonic wave entering the object, an incident position of the ultrasonic wave on a surface of the object, and a surface shape of a surface of the object at the incident position, the incident angle of the ultrasonic wave entering the incident position, and obtaining a plurality of ultrasonic elements to be driven, based on the incident position and the incident angle.