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Environment test system and vibration table position control device and method

A control device and control method technology, applied in the direction of measuring device, vibration test, use feedback control, etc., can solve the problems of poor anti-interference ability, high cost, small dynamic range, etc., and achieve the effect of improving accuracy and simple structure

Pending Publication Date: 2019-01-15
脉创测控装备科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system has poor anti-interference ability, such as being easily affected by alternating magnetic fields, high requirements for moving coil guidance, small dynamic range, high cost, etc., and misoperation of center zero control of moving parts, etc.

Method used

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  • Environment test system and vibration table position control device and method
  • Environment test system and vibration table position control device and method
  • Environment test system and vibration table position control device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] see figure 1 and figure 2 , a kind of environmental test system, it comprises: vibration generation equipment 100, and it comprises moving part 2 and table body 1; And shake table position control device; Wherein, the first displacement sensor 5, the second displacement Sensor 6 is connected with adjuster 300 through displacement detection circuit 400 respectively, and described adjuster 300 is connected with the control unit of vibration generation equipment 100 through power amplifier 200, adjuster 300, power amplifier 200 are also connected with signal generator or controller 500 .

[0048] see again figure 2 , a vibrating table position control device, including a first displacement sensing assembly and a second displacement sensing assembly, the first displacement sensing assembly includes a first positioning mechanism 3 and a matched first displacement sensor 5, and the second displacement sensing assembly Including the second positioning mechanism 4 and the ...

Embodiment 2

[0051] see figure 1 and figure 2 , a kind of environmental test system, it comprises: vibration generation equipment 100, and it comprises moving part 2 and table body 1; And shake table position control device; Wherein, the first displacement sensor 5, the second displacement Sensor 6 is connected with adjuster 300 through displacement detection circuit 400 respectively, and described adjuster 300 is connected with the control unit of vibration generation equipment 100 through power amplifier 200, adjuster 300, power amplifier 200 are also connected with signal generator or controller 500 .

[0052] see Figure 5 , the structure and principle of the vibrating table position control device in this embodiment are basically the same as those in Embodiment 1, the difference is that the first positioning mechanism 3 and the second positioning mechanism 4 in this embodiment are arranged in the vibration On the same side of the moving parts of the generating device, the first di...

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Abstract

The invention discloses an environment test system and a vibration table position control device and method. The vibrating table position control device includes a first positioning mechanism, a firstdisplacement sensor matched with the first positioning mechanism, a second positioning mechanism and a second displacement sensor matched with the second positioning mechanism. The first sensing surface of the first positioning mechanism and the second sensing surface of the second positioning mechanism are arranged obliquely relative to the moving direction of a moving component, and the obliquedirections of the first sensing surface and the second sensing surface are opposite. When the moving component moves in the axial direction and remains at the center position, the change amplitude ofa distance L1 between the first displacement sensor and the first sensing surface is equal to a distance L2 between the second displacement sensor and the second sensing surface. The vibrating tableposition control device separately monitors the displacement of the two positioning mechanisms through the two displacement sensors, and improves the position control and the accuracy of the adjustment by using the vector sum of voltage signals output by the two displacement sensors as the basis of the dynamic position control.

Description

technical field [0001] The invention particularly relates to an environmental test system, a vibration table position control device and a control method, and belongs to the technical field of electrodynamic vibration test equipment. Background technique [0002] The electric vibration table is the most common type of vibration test equipment. It is generally composed of a magnetic cylinder, an excitation coil, a moving coil, and a suspension system connecting the magnetic cylinder and the moving coil. Among them, the moving coil is mainly composed of a working table and It consists of a drive coil wound on the skeleton of the worktable. With the improvement of product safety and reliability requirements (especially aerospace products), the development of vibration test system, which is the key equipment of reliability test, is becoming more and more important. The center zero position control system of the moving parts of the shaking table is an important part of the vibra...

Claims

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Application Information

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IPC IPC(8): G01M7/02G05D3/12
CPCG05D3/12G01M7/022
Inventor 陈俊李一鹏陈蜀光
Owner 脉创测控装备科技(苏州)有限公司