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Reset precision detection method of ship inertia navigated impact isolator

A precision detection and isolator technology, applied in the direction of instruments, measuring devices, etc., can solve problems such as unsound reset precision measurement methods of impact isolators, achieve good operability, convenient operation, and improve efficiency

Inactive Publication Date: 2012-09-26
中国人民解放军92537部队
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the unsound measurement method of the reset accuracy of the shock isolator in the existing marine inertial navigation system, and provide a simple, applicable and high-precision evaluation method for the reset accuracy of the shock isolator

Method used

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  • Reset precision detection method of ship inertia navigated impact isolator
  • Reset precision detection method of ship inertia navigated impact isolator
  • Reset precision detection method of ship inertia navigated impact isolator

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specific Embodiment approach

[0038] The present invention uses marine inertial navigation, theodolite and plane mirror as measuring devices, light or medium-sized impact machine as marine inertial navigation physical installation platform, and stable flat plate as testing platform. The specific implementation is as follows:

[0039] (1) Place the inertial platform on a stable plate at a certain height from the ground, and install four small plane mirrors on the upper and lower ends of the inertial platform isolator heading and sideways. Among them, two plane mirrors are on the heading of the inertial navigation, and two plane mirrors are on the side of the inertial navigation.

[0040] (2) Set up a theodolite, respectively measure the horizontal angles of the four plane mirrors, and record as the angular position relationship of the impact isolator before the impact;

[0041] (3) Set up two theodolites, wherein theodolite 1 is aimed at the plane mirror 1, and theodolite 2 is aimed at the plane mirror 2, ...

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Abstract

The invention relates to a reset precision detection method of a ship inertia navigated impact isolator. The reset precision the ship inertia navigated impact isolator can be detected by measuring change values of height and azimuthal angles of four plane mirrors installed on the inertia navigated impact isolator before and after impact by two optical theodolites, four plane mirrors, an impact machine and the like. The detection method comprises the steps of simulating an environment that a ship is subjected to impacting by a light impact machine; performing an impact test for an inertia navigated system provided with the impact isolator; and calculating the reset precision of the impact isolator by the relative position changes of the four mirror surfaces installed at the upper and lower ends o f the impact isolator by the optical theodolites. The method is particularly suitable for evaluating the reset precision of the ship inertia navigated impact isolator. The method combines positioning after the inertia navigated impact test and evaluating of the speed precision, and further can be used for carrying out quantitative evaluation on the inertia ship navigated anti-impact performance.

Description

technical field [0001] The invention belongs to the technical field of impact-resistance accuracy evaluation of marine inertial navigation equipment, and particularly relates to high-precision marine inertial navigation systems, optical theodolites, impact machines, plane mirrors and other testing and detection equipment, and is suitable for evaluating the reset accuracy of impact isolators. Background technique [0002] The marine inertial navigation system has the characteristics of long working time for one mission (about 30 days for a mission, and the inertial navigation readjustment period can reach 14 days), and high measurement accuracy. In recent years, the marine inertial navigation system has been improved by rotation modulation technology. obvious improvement. In view of the environmental characteristics of marine inertial navigation, it is required that it can still output navigation parameters that meet the accuracy requirements after being subjected to strong s...

Claims

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Application Information

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IPC IPC(8): G01C25/00
Inventor 陶冶袁书明温肇东陈晶
Owner 中国人民解放军92537部队
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