A two-axis integrated gyro accelerometer and servo control method

An accelerometer and servo control technology, applied in the direction of using gyroscope for acceleration measurement, electric speed/acceleration control, etc., can solve the problems of gyro accelerometer measurement error, affecting the accuracy of instrument use, etc. Small volume, the effect of overcoming measurement errors
CN108710001BActive Publication Date: 2020-11-10BEIJING INST OF AEROSPACE CONTROL DEVICES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF AEROSPACE CONTROL DEVICES
Publication Date
2020-11-10

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Abstract

The invention discloses a two-axis integrated gyroscope accelerometer and a servo control method. The gyroscope accelerometer comprises a header part, a servo loop part, an output part and a housing body. The header part comprises a gyro-rotor with eccentric mass, a bench body, a bench body shaft, a framework and a framework shaft. An angle sensor is installed on one end of the bench body shaft and a torque motor is installed on the other end. An angle sensor is installed on one end of the framework shaft and a torque motor is installed on the other end. The servo loop part comprises one loopwhere bench body shaft angle amplifier acts on the framework torque motor through the amplifier, and another loop where the framework angle sensor acts on the bench body torque motor through the amplifier. The output part comprises a current value acts on the two motors. The current values are acquired and output to an on-missile computer. According to the invention, it is achieved that accelerated speed in two directions is measured by one accelerometer.
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Description

technical field

[0001] The invention relates to a two-axis gyro accelerometer and a servo control method, in particular to an accelerometer for an inertial stable platform, which belongs to the field of aviation and aerospace for high-precision apparent acceleration measurement. Background technique

[0002] In high-precision inertial stabilization platforms, quartz flexible accelerometers and pendulum integrating gyro accelerometers are mainly used at present, both of which are single-degree-of-freedom accelerometers, and each accelerometer is sensitive to apparent acceleration in one direction.

[0003] Taking the Pendulum Integral Gyro Accelerometer (PIGA) as an example, it is a pendulum accelerometer that uses gyro torque for feedback. Its working principle is shown in the figure below. In the figure, OX 1 Y 1 Z 1 is the coordinate system fixed to the frame, OX 1 is the input axis; Oxyz is the Ley difference coordinate system, and the Oz axis coincides with the rotor...

Claims

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