KENSAKEIKINOKOSEISOCHIOYOBIHOHO

摘要

Calibration arrangement(250) for calibrating an inspection instrument capable of transmitting and receiving sonic energy. It comprises frame(270) having a surface(280) for mounting ultrasonic transducer(260) on this surface: frame(270) has a slot(290) for receiving a sonic coupling medium(30) therein and channel (300) in communication with slot(290). Channel(300) has a predetermined orientation w.r.t. instrument(260). Reflector(320) extends through channel(300) into slot(290) for reflecting sonic energy. Reflector(320) has the same orientation of the channel(300). Reflector(300) reflects the sonic energy as the inspection instrument(260) transmits the sonic energy. An echo associated with the predetermined orientation of reflector(320) is produced as reflector(300) reflects sonic energy. The echo travels through the coupling medium and is received by instrument(260) to generate a signal. The signal is indicative of the reflector's(320) predetermined orientation for calibrating the instrument. Also claimed is a method of calibration of an instrument capable of transmitting and receiving the sonic energy.