METHOD AND DEVICE FOR DETECTING RELATIVE SPEED BY USING SUPERSONIC WAVE
A method and device for detecting relative speed by using supersonic wave, wherein the change of cycle due to the Doppler effect of the sound wave reflected from an object moving relative to the sound source of supersonic wave is detected whereby the relative speed of the object is automatically det...
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Main Author | |
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Format | Patent |
Language | English |
Published |
13.02.1973
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Subjects | |
Online Access | Get full text |
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Summary: | A method and device for detecting relative speed by using supersonic wave, wherein the change of cycle due to the Doppler effect of the sound wave reflected from an object moving relative to the sound source of supersonic wave is detected whereby the relative speed of the object is automatically detected and thus the safety mechanism of a transport machine such as an automobile is automatically controlled. |
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Bibliography: | Application Number: USD3716822 |