☆To observe Doppler effect of sound wave
☆To measure speed of ultrasound receiver and receiving frequency
☆To observe variable motion laws of different types of substances
☆To measure acoustic wave propagation speed in the air by time-difference method
Main configuration and technical features
☆The instrument consists of signal generator, receiving amplifier, microprocessor, touch LCD, stepping motor, ultrasonic receiving and transmitting transducer, photoelectric door, trolley, and etc.
☆Double position limitation protection
☆Frequency measuring precision: ±0.5 Hz; velocity measurement accuracy: ±0.002m/s
☆Rotation angle of transducer: 0-180
☆To measure accuracy of sound velocity by time-difference methodphase method, standing wave method and Doppler effect＜3%