Logarithmic converters and their application to the measurement of transmitted light
US4905005A · kind A · utility
4Cited by
9References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Apr 27, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1235
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The object of the present invention is the improvement of logarithmic amplifiers and/or converters and the applications of such devices in particular to photometric analyzer apparatuses. These amplifiers are characterized by the fact that they are linear with an amplification gain programmable by the .mu.P computer and that they may be preceded optionally by a reference voltage system. Application to the measurement of light transmitted by samples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.