COMPENSATION ACCELEROMETER WITH DIGITAL INPUT Russian patent published in 2006 - IPC G01P15/08 

FIELD: measuring engineering.

SUBSTANCE: accelerometer comprises sensor with the force pickup and pickup of shifting, amplifying-converting unit, unit for measuring scale coefficient, control device, and commutator. The unit for measuring scale coefficient is made of DC amplifier with the circuit of resistors connected in series at its input and resistors connected in parallel in the feedback circuits. The circuit of the resistors connected in parallel is connected to the amplifier output in parallel. The winding of the force pickup is connected to the output of the amplifier in series through the circuit of resistors and capacitors connected in parallel. The output resistors of the amplifier and resistors and capacitors connected in parallel are interconnected through the normally closed contacts of the commutator. The resistors of the feedback of the amplifier and resistors of the circuit parallel to its output are connected through the normally open contacts of the commutator. The output of the amplifying-converting unit is connected with the resistive two-terminal network that is provided with resistors whose resistance is lower than that of the corresponding resistors in the unit for measuring scale coefficient connected to the force pickup in series. The resistors of the two-terminal network are shunted with the additional normally closed contacts of the commutator. The capacitors of the unit for measuring the scale coefficient are connected with the corresponding resistors of the two-terminal network through the normally open contacts. The additional normally closed contacts of the commutator are connected with the corresponding resistors of the unit of scale coefficient connected to the force pickup in series.

EFFECT: enhanced precision.

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