Process and device for the remote transmission of signals and application to the detection and/or measurement of the quanity of combustible gas in an atmosphere
US4608552A · kind A · utility
13Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1982 |
| Grant date | Aug 26, 1986 |
| Priority date | — |
| Expiry date | Dec 13, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0062
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process of remote transmission of signals issued by at least one sensor over a transmission line, wherein the power necessary to supply the sensor is transmitted by that line in the form of an alternating current signal of approximately constant intensity, and wherein the line fulfills the triple function of supplying power to that sensor, of transmitting interrogation signals from a central station to that sensor and of transmitting data signals in response to that interrogation signal from the sensor to the central station. A device for incorporating this process is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.