Testing method for gyroscope with unknown parameters

A technology with unknown parameters and test methods, applied in the field of gyroscopes, it can solve the problems of poor accuracy and low reliability, and achieve the effect of ensuring normal operation and reasonable design

Active Publication Date: 2018-02-16
TIANJIN NAVIGATION INSTR RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This measurement method has problems such as poor accuracy and low reliability.

Method used

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  • Testing method for gyroscope with unknown parameters
  • Testing method for gyroscope with unknown parameters
  • Testing method for gyroscope with unknown parameters

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Embodiment Construction

[0022] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0023] A kind of testing method to unknown parameter gyroscope, comprises the following steps:

[0024] Step 1. Separate the gyroscope output signal from the inertial navigation system, strip the sensor excitation signal (frequency and voltage) from the gyroscope output signal, and construct the gyroscope excitation signal circuit.

[0025] This step is based on stripping the sensor excitation signal (frequency is 3.9kHz, voltage is 8V) from the output signal of the gyroscope, constructing as figure 1 Shown is the circuit for measuring the excitation signal of a gyroscope with unknown parameters. The excitation signal circuit includes a comparator, a phase-locked loop, a band-pass filter, and a power amplifier connected in sequence and is mounted on a voltage oscillator board.

[0026] The voltage oscillator board is connected with a 15V power su...

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Abstract

The invention relates to a testing method for a gyroscope with unknown parameters. The method has the technical characteristics of: separating a gyroscope output signal from an inertial navigation system and separating a sensor excitation signal, and constructing a gyroscope excitation signal circuit; separating a gyroscope motor signal from the inertial navigation system, and constructing a gyroscope motor drive signal circuit; using the sensor excitation signal and the motor signal as the drive signal of the gyroscope, and constructing a parameter matched force feedback loop; connecting thegyroscope excitation signal circuit, the gyroscope motor drive signal circuit and the force feedback loop together to compose a gyroscope testing system to test the gyroscope with unknown parameters.Through analysis of gyroscope signal in the inertial navigation system and design of the excitation signal circuit, the motor drive signal circuit and the force feedback loop meeting the testing requirements, the method provided by the invention realizes the accurate testing function on the liquid floated gyroscope with unknown parameters, finally provides the inertial navigation gyroscope with qualified performance, and guarantees the normal operation of a vessel inertial navigation system.

Description

technical field [0001] The invention belongs to the technical field of gyroscopes, in particular to a method for testing gyroscopes with unknown parameters. Background technique [0002] The inertial navigation system provides information such as position, attitude and speed for ship navigation and weapon systems, and is one of the key systems to ensure the safe navigation of ships and give full play to the combat effectiveness of weapon systems and missiles. Among them, the gyroscope is the key component of the system. For the inertial navigation system and liquid floating gyroscope imported from abroad, when their performance changes, it is difficult to accurately separate and locate them in the system, and there is a lack of necessary technical data and testing methods in China. At the same time, if the performance of the newly introduced liquid floating inertial navigation gyroscope cannot be judged in advance during the loading process, it will affect the normal equipm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
CPCG01C25/005
Inventor 谷健赵海涛李仲君毛佳珍
Owner TIANJIN NAVIGATION INSTR RES INST
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