Interrogator system for identifying electrical circuits
Abstract
A system for interrogating electrical leads to correctly ascertain the identity of equipment attached to remote ends of the leads. The system includes a source of a carrier signal generated in a controller/receiver to be sent over the leads and an identifier unit at the equipment. The identifier is activated by command of the carrier and uses a portion of the carrier to produce a supply voltage. Each identifier is uniquely programmed for a specific piece of equipment, and causes the impedance of the circuit to be modified whereby the carrier signal is modulated according to that program. The modulation can be amplitude, frequency or phase modulation. A demodulator in the controller/receiver analyzes the modulated carrier signal, and if a verified signal is recognized displays and/or records the information. This information can be utilized in a computer system to prepare a wiring diagram of the electrical equipment attached to specific leads. Specific circuit values are given for amplitude modulation, and the system is particularly described for use with thermocouples.
- Inventors:
-
- 10601 Rivermist La., Knoxville, TN 37922
- Rte. 12, Box 538, Maryville, TN 37801
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 866569
- Patent Number(s):
- 4737657
- Assignee:
- Jatko, William B. (10601 Rivermist La., Knoxville, TN 37922);McNeilly, David R. (Rte. 12, Box 538, Maryville, TN 37801)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04Q - SELECTING
- DOE Contract Number:
- W-7405-ENG-26
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- interrogator; identifying; electrical; circuits; interrogating; leads; correctly; ascertain; identity; equipment; attached; remote; source; carrier; signal; generated; controller; receiver; identifier; unit; activated; command; portion; produce; supply; voltage; uniquely; programmed; specific; piece; causes; impedance; circuit; modified; whereby; modulated; according; modulation; amplitude; frequency; phase; demodulator; analyzes; verified; recognized; displays; records; information; utilized; computer; prepare; wiring; diagram; values; particularly; described; thermocouples; supply voltage; electrical circuits; carrier signal; electrical leads; electrical circuit; signal generated; electrical equipment; amplitude modulation; phase modulation; modulated carrier; electrical lead; /307/340/702/
Citation Formats
Jatko, William B, and McNeilly, David R. Interrogator system for identifying electrical circuits. United States: N. p., 1988.
Web.
Jatko, William B, & McNeilly, David R. Interrogator system for identifying electrical circuits. United States.
Jatko, William B, and McNeilly, David R. Fri .
"Interrogator system for identifying electrical circuits". United States. https://www.osti.gov/servlets/purl/866569.
@article{osti_866569,
title = {Interrogator system for identifying electrical circuits},
author = {Jatko, William B and McNeilly, David R},
abstractNote = {A system for interrogating electrical leads to correctly ascertain the identity of equipment attached to remote ends of the leads. The system includes a source of a carrier signal generated in a controller/receiver to be sent over the leads and an identifier unit at the equipment. The identifier is activated by command of the carrier and uses a portion of the carrier to produce a supply voltage. Each identifier is uniquely programmed for a specific piece of equipment, and causes the impedance of the circuit to be modified whereby the carrier signal is modulated according to that program. The modulation can be amplitude, frequency or phase modulation. A demodulator in the controller/receiver analyzes the modulated carrier signal, and if a verified signal is recognized displays and/or records the information. This information can be utilized in a computer system to prepare a wiring diagram of the electrical equipment attached to specific leads. Specific circuit values are given for amplitude modulation, and the system is particularly described for use with thermocouples.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1988},
month = {Fri Jan 01 00:00:00 EST 1988}
}