An auto-calibration device for a bridge sensor.

摘要

In a Wheatstone bridge transducer (Z1, Z2, Z3, Z4), the balancing of the offset is effected in an automatic manner by a microcontroller (MP) which connects a plurality of resistors (R1, R2, R3), of decreasing values in parallel with one arm or the other of the bridge for the purpose of zeroing the offset itself.