Experimental Measurement of Transverse Velocities Using a Single Circular Planar Transducer by Doppler-Spectra.
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概要
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Doppler-spectra is a method for measuring velocity of an object moving across the ultrasonic beam. We verify that the bandwidth of the wave reflected from an object moving across the ultrasonic field radiated from a circular planar transducer depends on the velocity component of the object perpendicular to the axis of radiation. The equation representing the relationship between the transverse velocity and the bandwidth of the reflected wave is derived from the results of the exact calculation of the reflected wave. We have devised an experimental system that includes a circular planar transducer which radiates a burst wave and receives a reflected wave, a controller of a stage supporting a target, and a computer that transacts the received data and calculates the velocities. The results of the experiment confirm the feasibility of the discussion. Combining this method with the classical Doppler method suggests a simple two-dimensional velocity measurement system.
- 公益社団法人 応用物理学会の論文
公益社団法人 応用物理学会 | 論文
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