Title:
コリオリの角速度計のゼロ点エラー(Nullpunktfehlers)の補正方法
Document Type and Number:
Japanese Patent JP4166244
Kind Code:
B2
Abstract:
A method for compensation of the zero error of a Coriolis gyro. The frequency of the read oscillation is modulated. The output signal from a rotation rate control loop or quadrature control loop for the Coriolis gyro is demodulated in synchronism with the modulation of the frequency of the read oscillation to obtain an auxiliary signal. The auxiliary signal is a measure of the zero error. A compensation signal is produced and passed to the input of the rotation rate control loop or quadrature control loop, with the compensation signal being controlled such that the magnitude of the auxiliary signal is as small as possible.
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Inventors:
Schrader, Werner
Application Number:
JP2005518685A
Publication Date:
October 15, 2008
Filing Date:
March 26, 2004
Export Citation:
Assignee:
LITEF GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
International Classes:
G01C19/56; G01C
Domestic Patent References:
| JP2002515976A | ||||
| JP9236436A |
Foreign References:
| WO2001077620A1 | ||||
| WO1997045699A1 | ||||
| US6067858 |
Attorney, Agent or Firm:
Kenzo Hara International Patent Office
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