DEVICE FOR AUTOMATED MEASUREMENT OF SMALL ANGULAR DISPLACEMENTS Russian patent published in 2009 - IPC G01B11/26 

FIELD: military equipment.

SUBSTANCE: device for the automated measurement of small angular displacement contains a laser, meant to be fastened with the object, mirror block made in the form of a semitransparent mirror, located in the path of the radiation from the laser, and located in the path of the radiation reflected by the semitransparent mirror from a totally reflecting mirror, at a distance, depending on the required accuracy of measurement, optically connected with the mirror block photosensitive device, made in the form of a linear photosensitive device with charge coupling (LPDCC), display unit, synchronising generator, two digital comparators, generator, metre, two triggers, OR element, two AND elements, NOR element, two analog-to-digital converter, two digital filters and two delay elements. In the plane of analysis appears the interference pattern, projected to the photosensitive region of the LPDCC, causing the appearance of video signals at the output of LPDCC, identically corresponding to the interference pattern. Video signals are converted into sequential digital code. Calculation of the measured value is produced by the apparatus; result of the measurement is shown on the indicator.

EFFECT: increase in interference resistance of the device.

2 dwg