초록 ▼

A piezoelectric flexible arm member is mounted to a base at one end and supports a torque coil in a magnetic field at its other end. The torque coil comprises a seismic element disposed to be moved in accordance with acceleration forces applied thereto. A voltage is produced across the piezoelectric

A piezoelectric flexible arm member is mounted to a base at one end and supports a torque coil in a magnetic field at its other end. The torque coil comprises a seismic element disposed to be moved in accordance with acceleration forces applied thereto. A voltage is produced across the piezoelectric flexure arm when movement of the torque coil causes it to flex. The torque coil may include means to induce a signal in a position detector circuit representative of the position thereof. Both the signals from the piezoelectric member and the position detector may be used as error signals in a servo amplifier system to provide restoring forces to the torque coil and to produce an output signal representative of acceleration forces. A third conventional error signal may also be employed in the system.

대표청구항 ▼

Means for generating output signals representing acceleration forces comprising: a. a torque coil; b. means for producing a magnetic field; c. base means; d. a piezoelectric flexure member connected to said base means and supporting said torque coil in said magnetic field; e. said piezoelectric flex

Means for generating output signals representing acceleration forces comprising: a. a torque coil; b. means for producing a magnetic field; c. base means; d. a piezoelectric flexure member connected to said base means and supporting said torque coil in said magnetic field; e. said piezoelectric flexure member permitting said torque coil to be moved in said magnetic field to produce voltage signals across said piezoelectric member in accordance with the movement of said torque coil; and f. utilization means for receiving the voltage signals produced by said piezoelectric member.