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Harry A GustafsonWest Rock, MN

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Kathryn K Gustafson Ronald L Gustafson 78

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Pine City, MN   

Robbinsdale, MN   

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Harry Gustafson

Location:
United States

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Us Patents

Discriminant Apparatus For Laser Gyros

US Patent:
4551021, Nov 5, 1985
Filed:
Mar 1, 1982
Appl. No.:
6/353713
Inventors:
Stephen P. Callaghan - Minneapolis MN
Timothy J. Callaghan - Minneapolis MN
Harry A. Gustafson - Minneapolis MN
Wah L. Lim - Anaheim CA
Assignee:
Honeywell Inc. - Minneapolis MN
International Classification:
G01C 1964
US Classification:
356350
Abstract:
A discriminant apparatus for laser angular rate sensors which provides an output signal related to a selected weighted vectorial sum of the coupling of energy between counterpropagating waves traveling about a closed-loop path. The discriminant apparatus is utilized in a closed-loop control system for minimizing the lock-in rate of the sensor and/or maintaining and selecting scale factor linearity.

Low Cost Ring Laser Angular Rate Sensor

US Patent:
4817112, Mar 28, 1989
Filed:
May 10, 1985
Appl. No.:
6/733279
Inventors:
Mark W. Weber - Elk River MN
Harry Gustafson - Minneapolis MN
Assignee:
Honeywell Inc. - Minneapolis MN
International Classification:
H01S 3083
US Classification:
372 94
Abstract:
A ring laser angular rate sensor is constructed from a solid glass block with lasing paths machined therein and mirrors joined to the block with a frit seal.

Ring Laser Lock-In Correction Apparatus

US Patent:
4641970, Feb 10, 1987
Filed:
Sep 20, 1982
Appl. No.:
6/419874
Inventors:
Harry A. Gustafson - Minneapolis MN
Wah L. Lim - Anaheim CA
Francis H. Zeman - New Brighton MN
Assignee:
Honeywell Inc. - Minneapolis MN
International Classification:
G01B 902
US Classification:
356350
Abstract:
In the present application, an apparatus is provided for altering a ring laser angular rate sensor in such a way that the phase difference between the propagating waves therein includes lock-in error compensation. The apparatus of the present invention obtains a compensation output signal derived from the intensity of one or both of the propagating waves related to sensor lock-in error which can be utilized to alter the behavior of the ring laser so as to alter the behavior of the phase difference between the counter-propagating waves so that lock-in error contained therein is corrected.

Possible Relatives

David J Gustafson  Dayna Gustafson  Dale R Gustafson  Debbie Gustafson  Dan G Gustafson  Dana E Gustafson  Daniel E Gustafson  Harry W Johnson  Harry L Johnston  Harry R White 

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