Surface resistivity meter
US4758777A · kind A · utility
9Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1985 |
| Grant date | Jul 19, 1988 |
| Priority date | — |
| Expiry date | Feb 19, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hand-held, low cost, low voltage surface resistivity meter is provided by a contact surface which is essentially independent of the geometry of the surface to be measured. The use of special materials for the contact surface permits increased accuracy to be achieved at low voltages. Recognition that readings shown simply to the power of 10 are fully useful in characterizing a measured material permits a low cost, low voltage arrangement for the meter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.