Principle
If a source of sound is in motion relative to its medium of propagation, the frequency of the waves that are emitted is displaced due to the Doppler effect.
Tasks
1.The frequency changes are measured and analysed for different relative velocities of source and observer.
What you can learn about
Propagation of sound waves
Superimposition of sound waves
Doppler shift of frequency
Longitudinal waves
Materiallist Product Amount
Support rod, stainless steel, l = 600 mm, d = 10 mm 02037-00 1
Light barrier, compact 11207-20 1
Screen with plug, l 100 mm 11202-03 1
Software Cobra3 Timer/Counter 14511-61 1
Spring balance holder 03065-20 1
Double sockets,1 pair,red a.black 07264-00 1
Power supply 12V / 2A 12151-99 1
Track, l 900 mm 11606-00 1
Cobra3 BASIC-UNIT, USB 12150-50 1
Adapter, BNC socket/4 mm plug pair 07542-27 1
Screened cable, BNC, l 750 mm 07542-11 1
Connecting cord, 100 mm, yellow 07359-02 1
Connecting cord, 32 A, 1000 mm, blue 07363-04 1
Connecting cord, 32 A, 1000 mm, yellow 07363-02 1
Connecting cord, 32 A, 1000 mm, red 07363-01 1
Stand tube 02060-00 1
Barrel base -PASS- 02006-55 2
Battery cell, 1.5 V, baby size, type C 07922-01 2
Attachment for car 11061-02 1
Car, motor driven 11061-00 1
Boss head 02043-00 1
Ultrasonic transmitter 13901-00 1
Ultrasonic receiver on stem 13902-00 1
Ultrasound operation unit 13900-00 1
Power supply 5 VDC/2.4 A withDC-socket 2.1 mm 13900-99 1
