Apparatus for the measurement of the velocity of media flowing i

Details Apparatus for the measurement of the velocity of media flowing i Apparatus for the measurement of the velocity of media flowing i

1974-08-14

1976-08-17

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

System

128 205F, G01F 166

Patent

active

039746925

ABSTRACT:
An apparatus for the measurement of the velocity of media which flow particularly in conduits, for example, blood in its vessels, through the intermediary of ultrasound according to the Doppler effect-method. The apparatus includes at least two ultrasonic transmitter-receivers for the inclined transmission of the ultrasound into the media and for receiving of the ultrasound reflected by the medium, as well as an installation for determining from the frequencies of the emitted and received ultrasound, a value which is proportional to the flow velocity of the medium.

REFERENCES:
patent: 3766517 (1973-10-01), Fahrbach
patent: 3777740 (1973-12-01), Hokanson
D. W. Baker "Pulsed Ultrasonic Doppler Blood-Flow Sensing", IEEE Transactions on Sonics and Ultrasonics, vol. SU-17, No. 3, July 1970, pp. 170-184.

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