| 摘要 |
The orientation of a polarized capacitor is determined by applying first and second signals to the inner and outer conducting plates of the capacitor, the first signal being out of phase with the second signal, such that the outer plate of the capacitor generates an external electric field responsive to its respective signal which is greater in magnitude than the external electric field generated by the first plate. The electric field is sensed proximate to the capacitor and a third signal is output responsive to the electric field. The phase of the third signal is used to determine the orientation of the capacitor.
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