INTERFERENTIAL METER OF ANGULAR SPEED AND ACCELERATION Russian patent published in 2015 - IPC G01P3/36 

FIELD: measurement equipment.

SUBSTANCE: interferential meter of angular speed and acceleration includes a source of radiation, a circular interferometer, a light detecting device. At the same time the source of radiation is placed into a temperature control device. The circular interferometer is made of optical mirrors and light-dividing plates, and also an optical reflector installed on the investigated rotary object and having a cylinder shape made of homogeneous optical material with mirror coating applied onto its surface. At the inlet of the interferometer there is a sliding expander. In series with the light detecting device there is an analogue-digital converter and a computing device with the possibility to detect value of double accumulation of phase difference by beams having passed via the optical reflector in forward and backward directions in respect to direction of rotation, for further determination of angular speed and acceleration, accordingly, by speed and variation of speed of interferential strips movement.

EFFECT: expansion of working ranges of temperature and pressure variation.

1 dwg