Device to measure the rate of breakdown-mediated charge transfer on a dielectric
OwnerWilliam B. Hostetlerinventor
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Abstract
Breakdown-mediated charge transfer is made to occur at the surface of a dielectric and its rate is limited by a defined dielectric polarization level and frequency for safe use in a clinical setting. Measurement is accomplished directly by an optical method and indirectly by a high frequency current detection method. The optical method is made reliable through a sealed construction technique. The quality of diagnostic readings supplied by both methods are made more reliable by a repeatable means of force application.
Claims11
An optical assembly for collecting and collimating light emitted from a planar corona discharge, comprising in combination, a dielectric plate, a transparent electrode means in intimate contact with a surface of said dielectric plate;
- a photocell means;
- and elongated light pipe means intermediate said transparent electrode means and said photocell means having one end thereof in intimate contact with said electrode means and an opposite end in intimate contact with a surface of said photocell.
A non-optical measurement assembly for measuring the level of corona breakdown, comprising a dielectric plate;
- polarizer electrode means in intimate contact with a surface of said dielectric plate;
- and electronic analyzing means that utilizes the proportionality between an integrated light value, total breakdown-mediated charge transferred, and an integrated level of rectified high frequency current in a lead connecting a polarizer supply and the polarizer electrode means.
Dependencies are inferred from the claim text.