Finger wear detection for production line battery tester
OwnerEduardo V. Depianteinventor
Life of this patent
Estimating the term…
Abstract
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.
Claims7
A method of detecting wear in a battery tester probe, comprising the steps of:
- providing a battery tester unit having at least one tester finger for coupling to a battery to be tested;
- generating a tester signal using said tester fingers and said battery tester unit, the tester signal characteristic of at least one of the electrochemical condition of the battery and said tester finger;
- applying wavelet transformation, including computing a mother wavelet, to the tester signal to produce finger wear indicator signals;
- analyzing the finger wear indicator signals to compute a finger wear index;
- comparing the finger wear index for the tester finger with the index for a new tester finger;
- and
- generating a tester finger change signal to indicate a threshold wear
- change of the tester finger upon exceeding a preset finger wear index.
A method of detecting wear in a battery tester probe, comprising the steps of:
- providing a battery tester unit having at least one tester finger for coupling to a battery to be tested;
- actuating a test of a new tester finger;
- loading into a computer current finger wear signature data;
- computing a finger wear index by computing a mother wavelet for the current tester finger, the step of computing a mother wavelet including computing an average finger wear signature and converting the average signature into wavelet form;
- and
- generating a tester finger status signal characteristic of the degree of wear for said tester finger.
Dependencies are inferred from the claim text.