Title:
共振器ジャイロ内の光源を安定化させるシステムおよび方法
Document Type and Number:
Japanese Patent JP5208406
Kind Code:
B2
Abstract:
Methods and apparatus are provided for stabilizing laser light sources of a resonator gyro. A resonator gyro comprises a first light source (12) configured to produce a first input light, a second light source (14) configured to produce a second input light, a resonator (25) coupled to the first and second light sources, a resonance detection circuit coupled to the resonator, and a controller (35, 36) coupled to the resonance detection circuit and the first and second light sources. The resonance detection circuit detects a resonance frequency for each of the counter-propagating directions of the resonator. The controller tunes the first input light to a clockwise resonance frequency, and tunes the second input light to a counterclockwise resonance frequency that is at least one longitudinal resonance mode away from the clockwise resonance frequency. A difference between the resonance frequencies is proportional to a rotational rate of the resonator gyro.
Inventors:
Glen A Sanders
Lee Kay Strandjord
Lee Kay Strandjord
Application Number:
JP2006333453A
Publication Date:
June 12, 2013
Filing Date:
December 11, 2006
Export Citation:
Assignee:
Honeywell International Inc.
International Classes:
G01C19/72; H01S3/00
Domestic Patent References:
| JP2002054930A | ||||
| JP2001324334A | ||||
| JP5272981A | ||||
| JP4047214A | ||||
| JP3170016A | ||||
| JP63149517A | ||||
| JP9505148A |
Foreign References:
| US4135822 |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Fumitoshi Nishiyama
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Fumitoshi Nishiyama