Connection of ultrasonic receiver and rotating device can make the angle of rotation being read out; with the proper double-slit and single-slit sheets, the experiments of double slits interference and single slit diffraction can done.
Adopted with minitype high efficiency ultrasonic sensor. 
The sensor is shielded with metal case, possessed of strong antijamming capability and perfect acknowledgement signal.
Equipped with reflector plate, the apparatus can fulfill the interference experiment of initial wave and reflected wave when the reflector and receiver are at a certain angle, and display wave node diagram as well.


Digital display venire: rang is 0-200mm, accuracy is 0.01mm
Ultrasonic transducer (piezoelectric ceramics wafer): Oscillation frequency is 40.1±0.4KHz
Sine signal generator: frequency-tuning range is 38KHz-42KHz, display resolution of frequency is 0.001KHz
Uncertainty between the measured sound velocity in the air and the recognized value is less than 2% (phase method).
Position of ultrasonic receiver: swiveling range is -90° to 90°; single side scale of angle of rotation is 0°-20° and division value 1°.

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Synthesis Experimental Instrument For Measuring Sound Velocity

SKU: SL-270