MICRO-BAROGRAPH Russian patent published in 2007 - IPC G01L7/02 

FIELD: instrument industry.

SUBSTANCE: micro-barograph comprises basic assembling frame, barometric sensor suspended in the frame by means of a lever, counterweight, photoelectric converter made of a differential photoelectric cell connected with the controller, and light diode connected with the power source. The first end of the measuring spring is connected with the micrometric reading device. The micro-barograph has additional assembling frame connected with the basic assembling frame. The additional assembling frame receives the suspended rocker with different arms. The short arm of the rocker is connected with the barometric sensor, and the long arm is connected with the counterweight. The first end of the compensation spring is connected with the free end of the measuring spring and the lever of the barometric sensor. The second end of the spring is connected with the rod of the additional assembling frame. The elasticity moment of the measuring spring is equal to that of the compensation spring.

EFFECT: enhanced precision.

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