Flow measurement

Details Flow measurement Flow measurement

1994-10-03

1995-12-12

Chilcot, Richard

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

7386126, 12866108, G01F 100

Patent

active

054739489

ABSTRACT:
The movement of particles carried along with a fluid is detected by isonifying a region of the fluid with pulses of ultrasound, and detecting pulses of ultrasound scattered by an individual particle from successive transmitted pulses. The difference in arrival times of successive detected pulses is simply related to the speed of the particle. Use of suitable gates (A, B) enables successive reflections from a particle to be tracked while reflections from other particles are rejected.

REFERENCES:
patent: 4803990 (1989-02-01), Bonnefous
patent: 4853904 (1989-08-01), Pesque
patent: 5020374 (1991-06-01), Petroff et al.
patent: 5062430 (1991-11-01), Bonnefous
patent: 5311781 (1994-05-01), Gates
patent: 5320105 (1994-06-01), Bonnefous

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