APPARATUS AND METHOD FOR DETECTING MOVING SPEED OF PROBE IN ULTRASONOGRAPH

摘要

PROBLEM TO BE SOLVED: To accurately obtain moving speed and position of a probe scanned manually and freely without requiring a special instrument such as a sensor and a scanning mechanism. SOLUTION: Transmitting and receiving means 12 and 13 for transmitting and receiving a wave, a Doppler shift detecting part 100 for detecting amt. of the Doppler shift at a depth to be inspected from a receiving signal and a spreading amt. calculating part 20 for calculating amt. of spreading of the Doppler shift are provided and moving speed in the direction intersecting at right angles to the forwarding direction of the wave is obtd. from the amt. of spreading of the Doppler shift of the receiving signal. In addition, by calculating the mean value of the Doppler shift of the receiving signal in a mean value calculating part 21, the moving speed of the ultrasonic wave in the forwarding direction is obtd.