Method for calibrating a rotary encoder
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United States of America Patent
Stats
-
May 3, 2016
Issued Date -
N/A
app pub date -
May 14, 2015
filing date -
Nov 14, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for calibrating a rotary encoder, in particular an incremental encoder, of an electrical machine, wherein the encoder has a number of reference marks and outputs a sine track and a cosine track. The electrical machine can be regulated to a specific speed, an angle of the electrical machine is determined with the aid of the sine track and/or the cosine track, from this an angular progression over time is ascertained, an oscillation in the angular progression over time with a frequency of substantially one integral multiple of the product of the specific speed and the number of reference marks is ascertained, and from this a correction factor the sine track and/or the cosine track is derived, wherein the amplitude of the oscillation is less than or equal to a limiting value. The invention further relates to an encoder evaluation and an electric motor having a rotary encoder.
First Claim
Other Claims data not available
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International Classification(s)
- 2015 Application Filing Year
- G01P Class
- 782 Applications Filed
- 557 Patents Issued To-Date
- 71.23 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G01P Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 3, 2027 |
