| 摘要 |
<p>An acceleration sensor is disclosed which includes a weight (2), piezoelectric element(s) (4), a charged amplifier (6), an insulation plate (9) and a conductive casing (1). The insulation plate (9) fixedly mounts the weight (2) and piezoelectric element(s) (4) and is fixed to the conductive casing (1) which is maintained at the earth potential. Input terminals (13, 14) of the charged amplifier are connected to the output electrodes (3a, 3b) of the element(s) and a grounding circuit of the amplifier is connected to the conductive casing (1) so that the input terminals of the amplifier are floated from the earth potential.</p> |
