Presettable transducer for electrical quantities
US8519698B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2009 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Sep 13, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A presentable voltage sensor includes an electrode faced by an electric field probe and connected to a voltage source; a screening conductive shell wrapping the probe and connected to a reference potential; a dielectric material housed within the shell and interposed between the probe and the electrode; a conditioning circuit connected to an exit of the sensor and having a resistor of resistance Rm interposed between the probe and a second reference potential; and an integrator circuit formed from an RC network and having a resistor of resistance Ri, a capacitor of capacitance Ci, and a loss factor which, at a frequency of interest, is of an order of 10−4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.