1) A piezoelectric accelerometer consists of a 0.1 gm mass resting on a lmm x Imm x 0.2mm slab of PZT. (When the accelerometer is shaken, the force is applied along the 0.2mm dimension, which is the z axis of this crystal). The electrodes are on the Imm x Imm sides of the piezoelectric. a) What is the sensitivity of this accelerometer? b) What is the mechanical resonant frequency of this sensor? c) Assume this piezoelectric crystal has a leakage resistance of 100 MQ. What is the low-frequency cut-off of this accelerometer?
1) A piezoelectric accelerometer consists of a 0.1 gm mass resting on a lmm x Imm x 0.2mm slab of PZT. (When the accelerometer is shaken, the force is applied along the 0.2mm dimension, which is the z axis of this crystal). The electrodes are on the Imm x Imm sides of the piezoelectric. a) What is the sensitivity of this accelerometer? b) What is the mechanical resonant frequency of this sensor? c) Assume this piezoelectric crystal has a leakage resistance of 100 MQ. What is the low-frequency cut-off of this accelerometer?
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