Ultrasonic instrument to measure the gas velocity and/or the sol

Details Ultrasonic instrument to measure the gas velocity and/or the sol Ultrasonic instrument to measure the gas velocity and/or the sol

1986-03-12

1988-02-23

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Of selected fluid mixture component

7386126, G01F 174

Patent

active

047262354

ABSTRACT:
A flow meter (10) particularly adapted for measuring the mass flow rate of pulverized coal being introduced into large scale power generation boilers. The meter includes a transmitter (14) which generates a pulsed beam of ultrasonic impulses. A receiver (18) is positioned across the flow filed from the transmitter and receives the ultrasound pulses. The meter measures the downstream drift of the ultrasound pulses and their attenuation which is related to flow velocity and concentration, respectively. The instrument includes electronic circuitry (28) for automatically adjusting the relationship between transmitter and receiver, and performs numerical analysis routines on the signal outputted from the receiver to provide a signal related to coal concentration and velocity.

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