skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Motor current signature analysis method for diagnosing motor operated devices

Abstract

A motor current noise signature analysis method and apparatus for remotely monitoring the operating characteristics of an electric motor-operated device such as a motor-operated valve. Frequency domain signal analysis techniques are applied to a conditioned motor current signal to distinctly identify various operating parameters of the motor driven device from the motor current signature. The signature may be recorded and compared with subsequent signatures to detect operating abnormalities and degradation of the device. This diagnostic method does not require special equipment to be installed on the motor-operated device, and the current sensing may be performed at remote control locations, e.g., where the motor-operated devices are used in accessible or hostile environments.

Inventors:
 [1];  [2]
  1. Kingston, TN
  2. Oak Ridge, TN
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
867571
Patent Number(s):
4965513
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
motor; current; signature; analysis; method; diagnosing; operated; devices; noise; apparatus; remotely; monitoring; operating; characteristics; electric; motor-operated; device; valve; frequency; domain; signal; techniques; applied; conditioned; distinctly; identify; various; parameters; driven; recorded; compared; subsequent; signatures; detect; abnormalities; degradation; diagnostic; require; special; equipment; installed; sensing; performed; remote; control; locations; accessible; hostile; environments; analysis techniques; remote control; diagnostic method; frequency domain; operating characteristics; motor drive; electric motor; motor current; current signal; current sensing; hostile environment; hostile environments; analysis method; operating parameters; remotely monitoring; signal analysis; signature analysis; operated valve; motor operated; motor driven; analysis technique; operated devices; current signature; operating characteristic; operating parameter; driven device; electric motor-operated; domain signal; /324/73/318/

Citation Formats

Haynes, Howard D, and Eissenberg, David M. Motor current signature analysis method for diagnosing motor operated devices. United States: N. p., 1990. Web.
Haynes, Howard D, & Eissenberg, David M. Motor current signature analysis method for diagnosing motor operated devices. United States.
Haynes, Howard D, and Eissenberg, David M. Mon . "Motor current signature analysis method for diagnosing motor operated devices". United States. https://www.osti.gov/servlets/purl/867571.
@article{osti_867571,
title = {Motor current signature analysis method for diagnosing motor operated devices},
author = {Haynes, Howard D and Eissenberg, David M},
abstractNote = {A motor current noise signature analysis method and apparatus for remotely monitoring the operating characteristics of an electric motor-operated device such as a motor-operated valve. Frequency domain signal analysis techniques are applied to a conditioned motor current signal to distinctly identify various operating parameters of the motor driven device from the motor current signature. The signature may be recorded and compared with subsequent signatures to detect operating abnormalities and degradation of the device. This diagnostic method does not require special equipment to be installed on the motor-operated device, and the current sensing may be performed at remote control locations, e.g., where the motor-operated devices are used in accessible or hostile environments.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

Patent:

Save / Share: