Method and apparatus for conducting flow measurements on flowing

Details Method and apparatus for conducting flow measurements on flowing Method and apparatus for conducting flow measurements on flowing

1982-09-29

1985-01-15

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

128663, G01F 166

Patent

active

044932162

ABSTRACT:
Due to a different configuration of the ultrasonic beam as well as different signal gate adjustments, two different doppler signal collection regions (V.sub.m1, V.sub.p) of the flowing medium are selectable. To further develop the state of the art, without excessively increased technical outlay, at least the flow velocity (v) and/or the flow cross-sectional area (F) are to be measured, preferably simultaneously with the volume flow (Q), independently of the irradiation angle of the ultrasound into the flowing medium. This is achieved through selection of a third doppler signal collection region (V.sub.m2), power measurements (P.sub.m1, P.sub.p, P.sub.m2) from all three regions (V.sub.m1, V.sub.p, V.sub.m2) and the calculation from the powers together with additional known parameters of the signal collection regions such that, with cancellation of the angle-dependency, the respectively desired flow quantity (F, v, Q) directly results. A preferred implementation is for the purpose of diagnosis of blood flow.

REFERENCES:
patent: 3675192 (1972-07-01), Fahrbach
patent: 3766517 (1973-10-01), Fahrbach
patent: 3974692 (1976-08-01), Hassler
patent: 3977247 (1976-08-01), Hassler
patent: 4067236 (1978-01-01), Hottinger
patent: 4095597 (1978-06-01), Hassler
patent: 4127842 (1978-11-01), Hassler
Hottinger et al. "An Ultrasonic Technique for Unambiguous Measurement of Blood Volume Flow" Ultrasonic Symposium Proceedings, IEEE Cat. No. 74 CHO 896-1SU, 1974, pp. 667-670.

Affiliated with

Also associated with

Rating

Method and apparatus for conducting flow measurements on flowing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for conducting flow measurements on flowing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for conducting flow measurements on flowing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1476507