Method for the nondestructive testing of voltage limiting blocks
US4112362A · kind A · utility
5Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1976 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Dec 30, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for the nondestructive testing of voltage limiting blocks includes the steps of providing several discrete electrical contacts across the block, sequentially applying to each of the contacts a voltage to determine the corresponding current and utilizing the current and voltage values to determine constants related to the microstructure of that particular location. The constants can then be utilized to derive a contour map which will be indicative of a hot spot in such block as determined by a maxima of the contour map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.