Electrostatic shielding technique on high voltage diodes

摘要

A DC high potential testing meter comprises first and second probes. The first probe comprises an insulated shield supporting an electrode extending from a distal end of the shield. A high voltage resistor and a high voltage diode in the shield are connected in series with the electrode. A capacitance formed by a metallic collar across the high voltage diode provides uniform voltage distribution along the high voltage diode. The second probe comprises an insulated shield supporting an electrode. A high voltage resistor in the shield is connected in series with the electrode. A meter comprises a housing enclosing an electrical circuit for measuring voltage across the electrodes and provides an output representing measured voltage.

主权项

1. A DC high potential testing meter comprising:
a first probe comprising an insulated shield supporting an electrode extending from a distal end of the shield, a high voltage resistor and a high voltage diode in the shield connected in series with the electrode, and a capacitance, formed by a metallic collar, across the high voltage diode to provide uniform voltage distribution along the high voltage diode; a second probe comprising an insulated shield supporting an electrode extending from a distal end of the shield and a high voltage resistor connected in series with the electrode; and a meter operatively connected to the first and second probes comprising a housing enclosing an electrical circuit for measuring voltage across the electrodes and providing an output representing measured voltage.