Controlled sensitivity monitoring devices
US4158958A · kind A · utility
7Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1978 |
| Grant date | Jun 26, 1979 |
| Priority date | — |
| Expiry date | Jun 9, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0011
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A controlled sensitivity device for measuring the amount of a selected component in fluid mixture is disclosed. A collecting layer is disposed within a chamber into which the fluid mixture is allowed to diffuse. Sensitivity of the device is controlled by varying the ratio of the chamber entrance area to the frontal surface area of the collecting layer and the shape of the chamber to cause divergence of convergence of molecules within the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.