A RADIAL PLANIMETER Russian patent published in 2007 - IPC G01B5/26 

FIELD: the invention refers to measuring technique and designed for definition of the squares of figures of random outlines.

SUBSTANCE: the radial planimeter has a body on whose surface a rotary small table is placed with possibility of revolution, a mechanism of radial displacement of a running in roller with a speed proportional to the square of a linearly changeable radius of a bypassing level, the bypassing level with a longitudinal groove in the middle, a calculating mechanism with a running in roller, put on the shaft with possibility of alternate-reciprocal displacement, and also a viewfinder on the end of the bypassing level, peculiarity is contained in that the rotary small table in it is fulfilled with radial groove in which a bypassing level is placed with possibility of longitudinal displacement in guides marked on their walls; on the bypassing level there is a firmly fastened pusher providing alternate-reciprocal displacement of the bypassing roller on the shaft along contacting lines of frictions; the mechanism of radial displacement of the bypassing roller with a speed proportional to the square of linearly displaced bypassing lever is fulfilled in the shape of a truncated cone fastened on the rotary little table.

EFFECT: simplification of the construction of the device and increasing reliability of the work of an instrument.

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