EP 0266635 A3 19881221 - METHOD FOR THE AUTOMATIC IDENTIFICATION OF THE TYPE OF MEASURING INSTRUMENT OF AN ACQUISITION AND TRANSMISSION ARRANGEMENT FOR MEASURED VALUES USING OPTICAL FIBRES
Title (en)
METHOD FOR THE AUTOMATIC IDENTIFICATION OF THE TYPE OF MEASURING INSTRUMENT OF AN ACQUISITION AND TRANSMISSION ARRANGEMENT FOR MEASURED VALUES USING OPTICAL FIBRES
Publication
Application
Priority
DE 3637689 A 19861105
Abstract (en)
[origin: US4810891A] 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.
IPC 1-7
IPC 8 full level
G08C 23/06 (2006.01)
CPC (source: EP US)
G08C 23/06 (2013.01 - EP US)
Citation (search report)
- [A] US 4219762 A 19800826 - GILBERT RAINE M [US]
- [A] DE 3526049 A1 19860605 - ELEKTROPROJEKT ANLAGENBAU VEB [DD]
- [A] US 4213119 A 19800715 - DILS MICHAEL A [US], et al
- [XP] DE 3637689 C1 19870625 - BBC BROWN BOVERI & CIE
Designated contracting state (EPC)
CH DE FR GB LI SE
DOCDB simple family (publication)
DE 3637689 C1 19870625; EP 0266635 A2 19880511; EP 0266635 A3 19881221; US 4810891 A 19890307
DOCDB simple family (application)
DE 3637689 A 19861105; EP 87115464 A 19871022; US 11504887 A 19871030