Unlock instant, AI-driven research and patent intelligence for your innovation.

A magnetic levitation centering system for a three-floating gyro accelerometer

A technology of accelerometer and centering system, which is used in acceleration measurement using gyroscope, testing/calibration of velocity/acceleration/shock measurement equipment, velocity/acceleration/shock measurement, etc., which can solve device damage and affect signal accuracy, etc. question

Active Publication Date: 2016-03-30
BEIJING INST OF AEROSPACE CONTROL DEVICES
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the magnetic levitation circuit is a closed-loop circuit, this spike will be fed into the amplifier, affecting the signal accuracy
When the amplitude of the spike exceeds the maximum input voltage the device can withstand, it may also cause damage to the device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A magnetic levitation centering system for a three-floating gyro accelerometer
  • A magnetic levitation centering system for a three-floating gyro accelerometer
  • A magnetic levitation centering system for a three-floating gyro accelerometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The magnetic levitation centering system of the three-float gyro accelerometer adopts a digital time-division active magnetic levitation based on servo control. Magnetic levitation uses magnetic force to make the magnetic levitation body (float) move along an axis of the frame coordinates of the accelerometer or around the frame. Several axes of coordinates remain in fixed positions. Within the active range of the liquid bearing gap of the three-float gyro accelerometer (about 65 μm in the radial direction and about 100 μm in the axial direction), the float assembly can be regarded as a rigid body that can move in six degrees of freedom in space, except for the freedom of rotation around the float axis The degree of freedom is used to be sensitive to the gyro effect, and the remaining five degrees of freedom should be constrained by the centering of the magnetic suspension support to achieve full suspension. Three-float gyro accelerometer including float and magnetic le...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a magnetic suspension centering system of a three-floated-gyroscope accelerometer. The magnetic suspension centering system of the three-floated-gyroscope accelerometer comprises a five-path position measuring bridge, a multi-path gate, a pre-amplifier, a phase sensitive demodulation circuit, an amplitude limiting circuit, a microcontroller with an analog-digital conversion function, a level switching circuit, a power triode and an electric charge discharging circuit. The level switching circuit can convert voltages output by the microcontroller into the voltages needed by a control power circuit through a comparator chip so as to achieve the control function on an actuator. Through the electric charge discharging circuit, energy accumulated in an inductive load due to quick on-off of currents can be released at an appropriate speed, and the fact that spike voltages are generated to influence the reliability of the circuit is avoided.

Description

technical field [0001] The invention relates to a magnetic suspension centering system of a three-floating gyro accelerometer. Background technique [0002] The three-float gyro accelerometer is a high-precision pendulum integrating gyro accelerometer. The internal gyro motor adopts air bearings, so that the motor can avoid friction during high-speed rotation and improve the service life. At the same time, the float part inside the accelerometer is in the liquid, and its gravity is equal to and opposite to the buoyancy force it receives, so it is in a suspended state. In addition, the shaft of the float component adopts a magnetic suspension bearing, thereby improving the positioning accuracy of the bearing. Because this accelerometer adopts air floatation, liquid floatation and magnetic levitation technologies at the same time, it is called a three-float gyro accelerometer. [0003] In the three-float gyro accelerometer, the magnetic levitation technology is applied to th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01P15/14G01P21/00
Inventor 李庆溥严小军孙鹏飞章丽蕾赵晓萍
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES