| 摘要 |
Apparatus is disclosed for remotely responding to the capacitance of a capacitor, such as a capacitor probe being used to measure the level of water in a well. The capacitor is charged by a source of charging voltage through a shielded conductor and a diode provided at or near to a terminal connecting the conductor and the capacitor so that the capacitor may be charged independently of the conductor and source of charging voltage. The capacitor is discharged by a read out device through a second shielded conductor and a resistor provided at or near to a terminal connecting the second conductor and the capacitor.
|
