Acoustic Gas Flowmeter

Babcock-Hitachi K.K. developed an acoustic gas flowmeter that can measure gas flow with high precision even under severe environment containing heavy dusts at high temperature or in a large duct. The acoustic gas flowmeter has superiority over the conventional measurement method using an airfoil regarding the following. No pressure losses (Reduction of fan power) Long and large rectification straight pipe unit not required Improvement of maintenance property(Zero point adjustment due to aging not required, low dust clogging) Features Measurement of the velocity and temperature of gases in the audible frequency-based acoustic propagation time method having an excellent long-distance propagation property. Simultaneous measurement of the average velocity and temperature along the measurement path. Understanding of the distribution of gases (drift condition) by the multipath measurement.