Method for the automatic identification of the type of measuring head of a fiber optic measurement value acquisition and transmission device
US4810891A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1987 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Oct 30, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C23/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for the automatic identification of the type of measuring head (1) of a fiber optic measurement value acquisition and transmission device which exhibits a measurement signal fiber (3) and a control signal fiber (4), in which the measuring head (1) can be remotely operated from a control unit (2) by means of control signals which are transmitted via the control signal fiber and, in particular, can be caused to emit a calibration signal. According to the invention, calibration signals of different frequencies are provided for various types of measuring heads. Using the frequency of the calibration signal, the control device is capable of identifying in each case the measuring head connected to it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.