Semi-automatic self-contained magnetic azimuth detector calibration apparatus and method
CA 1096662 A · Owner: Sperry Corporation · Inventors: Misch, Roger A.; Erspamer, James R.; Jackson, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for calibrating the magnetic azimuth detector of a gyromagnetic compass system utilizes the system gyro to provide a plurality of heading references to which the corresponding heading outputs of the magnetic azimuth detector are compared to provide cardinal and inter-cardinal error data from which one cycle and two cycle compensation coefficients are derived. The gyro heading references are compensated for gyro drift in accordance with the proportionate drift occurring with respect to the total gyro drift occurring during the calibration procedure in accordance with coincident initial and final heading reference points. The calibration is effected by orienting the aircraft in …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.