DEVICE MEASURING FORCE Russian patent published in 2002 - IPC

FIELD: force-measuring equipment. SUBSTANCE: device has piezoelement 8 with six covers 9, 10, 11, 12, 13, 14, elements 15, 16 transmitting measured force, two generators 1, 2 of electric oscillations, two inductance coils 6, 7, phase detector 3 of relay type, unit 4 of counters, compensation unit 5. Inductance coils 6, 7 are connected to two covers 9, 11 of piezoelement and to two inputs of generators 1, 2 of electric oscillations, other inputs of generators of electric oscillations are connected to two other covers 10, 12 of piezoelement. Outputs of generators 1, 2 of electric oscillations are connected to inputs of phase detector 3 of relay type. Count enable input of unit 4 of counters is connected to output of phase detector 3 of relay type and its counting input is coupled to output of generator 2 of electric oscillations. Output of unit of counters is connected to input of compensation unit 5 which outputs are connected to two covers 13, 14 of piezoelement 8. EFFECT: enhanced sensitivity to measured value. 1 dwg