Investigating the Doppler effect with ultrasonic waves

VP1.7.6.1
Investigating the Doppler effect with ultrasonic waves
Investigating the Doppler effect with ultrasonic waves Propagation of sound with the sound source and the observer at rest (P1.7.6.1)
Investigating the Doppler effect with ultrasonic waves Propagation of sound with the sound source moving and the observer at rest (P1.7.6.1)
Investigating the Doppler effect with ultrasonic waves Propagation of sound with the sound source at rest and the observer moving (P1.7.6.1)
Investigating the Doppler effect with ultrasonic waves

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Description

In the experiment P1.7.6.1, two identical ultrasonic transducers are used as the transmitter and the receiver, and differ only in their connection. One transducer is mounted on a measuring trolley with electric drive, while the other transducer is at rest on the lab bench. The frequency of the received signal is measured using a digital counter. To determine the speed of the transducer in motion, the time Δt which the measuring trolley requires to traverse the measuring distance is measured using a stopclock.

Components of equipment sets

1 416002 Ultrasonic transmitter LD
1 416003 Ultrasonic receiver LD
1 416015  4  AC amplifier LD
1 416014  4  Generator, 40 kHz LD
1 501031  8  Connecting lead, protected, 8 m, screened LD
1 501644  4  Two-way adapters, black, set of 6 LD
2 68544  8  Battery 1.5 V (AA) LD
1 33707  8  Trolley with electric drive LD
2 46081  8  Precision metal rail, 100 cm LD
1 46085  8  Rail connector LD
1 46088  8  Feet for metal rails, pair LD
2 46095  4  Clamp rider LD
1 416031  4  Accessories for acoustic Doppler effect LD
1 575471  8  Counter S LD
1 575302  4  Oscilloscope 30 MHz, digital, PT1265 LD
1 57524  4  Screened cable, BNC/4 mm LD
1 31327 Hand-held stop-watch, 60s/0.2s LD
1 30002  8  Stand base, V-shaped, small LD
1 30011  8  Saddle base LD
1 30041  8  Stand rod, 25 cm, 12 mm Ø LD
1 30043  8  Stand rod, 75 cm, 12 mm diam. LD
1 30101  4  Leybold multiclamp LD
1 608100  4  Stand ring with clamp, 70 mm diam. LD
1 50146  4  Connecting leads 19 A, 100 cm, red/blue, pair LD

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) P1.7.6.1 Investigating the Doppler effect with ultrasonic waves
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