Methodical error of acoustic field local pressure measurement by laser Doppler anemometer

摘要

The technique and errors of acoustic field local pressure indirect measurements in liquids and gases based on estimation of particles oscillatory velocity are discussed. It is shown, that using the laser Doppler anemometer we obtain the methodical component of error caused by acousto-optics effect. The ranges of the media parameters, of acoustic wave and measuring installation at which the procedural error can be lowered to the required limit are determined.