Demodulation circuit for AC motor current spectral analysis
Abstract
A motor current analysis method for the remote, noninvasive inspection of electric motor-operated systems. Synchronous amplitude demodulation and phase demodulation circuits are used singly and in combination along with a frequency analyzer to produce improved spectral analysis of load-induced frequencies present in the electric current flowing in a motor-driven system.
- Inventors:
-
- Oak Ridge, TN
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 867654
- Patent Number(s):
- 4978909
- Application Number:
- 07/401,728
- Assignee:
- Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- demodulation; circuit; motor; current; spectral; analysis; method; remote; noninvasive; inspection; electric; motor-operated; systems; synchronous; amplitude; phase; circuits; singly; combination; frequency; analyzer; produce; improved; load-induced; frequencies; flowing; motor-driven; spectral analysis; electric current; electric motor; current flow; motor current; current flowing; analysis method; current analysis; electric motor-operated; current spectra; /324/
Citation Formats
Hendrix, Donald E, and Smith, Stephen F. Demodulation circuit for AC motor current spectral analysis. United States: N. p., 1990.
Web.
Hendrix, Donald E, & Smith, Stephen F. Demodulation circuit for AC motor current spectral analysis. United States.
Hendrix, Donald E, and Smith, Stephen F. Tue .
"Demodulation circuit for AC motor current spectral analysis". United States. https://www.osti.gov/servlets/purl/867654.
@article{osti_867654,
title = {Demodulation circuit for AC motor current spectral analysis},
author = {Hendrix, Donald E and Smith, Stephen F},
abstractNote = {A motor current analysis method for the remote, noninvasive inspection of electric motor-operated systems. Synchronous amplitude demodulation and phase demodulation circuits are used singly and in combination along with a frequency analyzer to produce improved spectral analysis of load-induced frequencies present in the electric current flowing in a motor-driven system.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 18 00:00:00 EST 1990},
month = {Tue Dec 18 00:00:00 EST 1990}
}