Quantitative measurement of the Doppler shift at an ultrasonic frequency
作者:
R. C. Nerbun,
R. A. Leskovec,
期刊:
American Journal of Physics
(AIP Available online 1976)
卷期:
Volume 44,
issue 9
页码: 879-881
ISSN:0002-9505
年代: 1976
DOI:10.1119/1.10287
出版商: American Association of Physics Teachers
数据来源: AIP
摘要:
Two ultrasonic transducers, the receiver stationary at the end on a linear air track, and the source mounted on a moving glider, are the basis for a Doppler shift experiment. The source frequency and the shifted receiver frequency are fed into a digital phase detector circuit which produces an output difference frequency with a sinusoidal waveform. This Doppler shift frequency can be measured directly and compared with the shift predicted from theory.
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