Coulometric measuring instrument with plug adapters for making different measurements
US4021734A · kind A · utility
2Cited by
1References
19Claims
0Family size
Inventor
Key dates
| Filing date | Jan 8, 1976 |
| Grant date | May 3, 1977 |
| Priority date | — |
| Expiry date | Jan 8, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for the coulometric measurement of the thickness of thin metal layers of different material on a base has switch-over devices permitting switching to the measurement problem at hand and an electrolytic switch-over device. Accessible from the outside of the device, a first plug section, coupling electrical lines, is provided. Second plug sections having a shape necessarily resulting in correct plugging can be selectively plugged into the first plug section. The second plug section mounts electrical circuit elements of values pertaining to a separate measurement problem, which elements are connected to the plug contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.