Ultrasound calibrator

Details Ultrasound calibrator Ultrasound calibrator

1990-01-23

1991-02-05

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01F 2500

Patent

active

049894463

ABSTRACT:
An ultrasound calibrator apparatus and method for calibrating ultrasound equipment. The apparatus includes a pair of opposed bellows oscillatorily transferring a fluent medium back and forth through a channel with a well-defined cross-sectional area such that the flow velocity therethrough is known. A probe in communication with ultrasound equipment to be tested is submerged in a reservoir which is situated in close proximity to the channel such that the flow velocity can be measured therewith. The ultrasound equipment is then adjusted to correct the discrepancies between the known and measured velocities so as to calibrate the ultrasound equipment.

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patent: 4729247 (1988-03-01), Brown
patent: 4759374 (1988-07-01), Kierney et al.
patent: 4762012 (1988-08-01), Brown

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