MICROBAROGRAPH WITH LASER RECORDING Russian patent published in 2013 - IPC G01L7/00 

FIELD: measurement equipment.

SUBSTANCE: microbarograph includes a horizontal balanced pendulum with two equally spaced inert masses, one of which is hollow. A small air capillary is introduced to hollow mass. Microbarograph includes a container with a large air capillary, into which the horizontal balanced pendulum itself is placed. Oscillation converter of the pendulum system to a digital signal is made by installation of LCCD-line on the hollow mass and a container-laser on inner surface. Beam trajectory will pass accurately along LCCD-line at oscillation of the pendulum.

EFFECT: improvement of conversion accuracy of oscillations of atmospheric pressure with controlled bandpass.

1 dwg