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Title: Finger wear detection for production line battery tester

A method for detecting wear in a battery tester probe. The method includes providing a battery tester unit having at least one tester finger, generating a tester signal using the tester fingers and battery tester unit with the signal characteristic of the electrochemical condition of the battery and the tester finger, applying wavelet transformation to the tester signal including computing a mother wavelet to produce finger wear indicator signals, analyzing the signals to create a finger wear index, comparing the wear index for the tester finger with the index for a new tester finger and generating a tester finger signal change signal to indicate achieving a threshold wear change.
Inventors:
 [1]
  1. (16 W. 505 Mockingbird La., Apt. 204, Hinsdale, IL 60521-6621)
Issue Date:
OSTI Identifier:
871240
Assignee:
Depiante, Eduardo V. (16 W. 505 Mockingbird La., Apt. 204, Hinsdale, IL 60521-6621) ANL
Patent Number(s):
US 5689429
Contract Number:
W-31109-ENG-38
Research Org:
Argonne National Laboratory (ANL), Argonne, IL
Country of Publication:
United States
Language:
English
Subject:
finger; wear; detection; production; line; battery; tester; method; detecting; probe; providing; unit; generating; signal; fingers; characteristic; electrochemical; condition; applying; wavelet; transformation; including; computing; mother; produce; indicator; signals; analyzing; create; index; comparing; change; indicate; achieving; threshold; signal characteristic; tester finger; production line; signal including; battery tester; wavelet transform; /702/340/700/