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Vibration amplitude weighted control method based on multiple sensors

A vibration amplitude, multi-sensor technology, used in vibration testing, machine/structural component testing, instruments, etc., can solve problems such as damage to equipment, large displacement errors in acceleration control and control, and achieve less damage, accurate detection, and accurate height detection. The effect of high precision of constant and vibration amplitude control

Active Publication Date: 2019-03-01
杭州亿恒科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] The existing material testing machine control method is mainly through the acceleration time domain reproduction control. Since the amplitude-frequency characteristic curve of the acceleration sensor will decrease in the low frequency band, the acceleration control will have a large control displacement error in the low frequency band, which is serious. may damage the device when

Method used

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  • Vibration amplitude weighted control method based on multiple sensors
  • Vibration amplitude weighted control method based on multiple sensors
  • Vibration amplitude weighted control method based on multiple sensors

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 The illustrated embodiment is a vibration amplitude weighted control method based on multiple sensors, including a hydraulic servo controller 1, an acceleration sensor 2 arranged on the vibrating table, a hydraulic cylinder 3, and a displacement sensor 4 arranged on the hydraulic cylinder; The servo controller is electrically connected to the hydraulic cylinder through the servo valve 5, and the hydraulic cylinder is connected to the vibrating table; both the acceleration sensor and the displacement sensor are electrically connected to the hydraulic servo controller; the entire hydraulic system of the present invention corresponds to the material testing machine in the background technology ;

[0034] Including the following steps:

[0035] (1-1) Set the weighting parameter a, f 3 A frequency point in the frequency ...

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Abstract

The invention discloses a vibration amplitude weighted control method based on multiple sensors. The vibration amplitude weighted control method comprises a hydraulic servo controller, an accelerationsensor, a hydraulic oil cylinder and a displacement sensor, wherein the acceleration sensor is arranged on a vibration table side; the displacement sensor is arranged on the hydraulic oil cylinder; the hydraulic servo controller is electrically connected with the hydraulic oil cylinder through a servo valve; the hydraulic oil cylinder is connected with the vibration table side; the acceleration sensor and the displacement sensor are both electrically connected with the hydraulic servo controller. The vibration amplitude weighted control method has the characteristics of high control accuracy,capability of protecting the vibration table side and the hydraulic oil cylinder from being damaged, high detection accuracy for materials.

Description

technical field [0001] The invention relates to the technical field of vibration control, in particular to a vibration amplitude weighted control method based on multiple sensors with high control precision. Background technique [0002] Material testing machine is a precision testing instrument for measuring the mechanical properties, process properties, internal defects and checking the dynamic unbalance of rotating parts of metal materials, non-metal materials, mechanical parts and engineering structures under various conditions and environments. In the process of researching and exploring new materials, new processes, new technologies and new structures, material testing machines are an indispensable and important testing instrument. It is mostly used for the static performance test analysis research of tension, compression, bending, shearing, peeling, tearing, load retention, relaxation, reciprocation, etc. of metals and non-metals (including composite materials). [0...

Claims

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Application Information

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IPC IPC(8): G01N3/02G01M7/02
CPCG01M7/022G01N3/02
Inventor 贺惠农吴峥王海周黄连生李雅发邱宏亮
Owner 杭州亿恒科技有限公司
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