| 摘要 |
PURPOSE:To obtain accurate information in reflecting bodies easily even if plural pieces of reflecting bodies exist in an object to be inspected by setting the spacings between respective wave transmitting a receiving positions and the spacings between scanning lines in such a way that the adjacent ultrasonic beams overlap thoroughly on and between the scanning lines. CONSTITUTION:A probe 14 is moved and controlled on an object 10 to be examined from a state point (x, y) up to an end point (xn, yn) along respective scanning lines L1, L2-Li. The spacings between the lines L and respective wave transmitting and receiving positions are so set that adjacent ultrasonic beams overlap thoroughly on each other. The reflected pulses R received in the probe 14 are supplied to a wave transmittng and receiving circuit 22, by which said pulses are detected and are then digitized in a digitizing circuit 24, from which the digital signals are supplied to a data memory 26. The positions of the probe 14, and the crest values and propagation time of the pulse R are successively arranged and stored in the memory 26. These stored contents are read out properly and selectively and are processed according to a series of flow charts by an arithmetic processor 28. |
