Embedded type universal material testing machine observe and control system

A material testing machine, measurement and control system technology, applied in the direction of analysis of materials, measuring devices, instruments, etc., can solve the problems of inability to guarantee the real-time requirements of the measurement and control system, maintenance and expansion difficulties, etc., to achieve good accuracy and operating performance, strong flexibility And the effect of high adaptability and collection accuracy

Inactive Publication Date: 2009-05-27
EAST CHINA UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

At present, the development of the measurement and control system of the universal material testing machine has certain complexity. It is very difficult to develop, maintain and expand the front-end and back-end systems directly on the bare metal.
Moreover, such a system is essentially a program hypercycle, which cannot guarantee the real-time requirements of the measurement and control system at all.

Method used

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  • Embedded type universal material testing machine observe and control system
  • Embedded type universal material testing machine observe and control system
  • Embedded type universal material testing machine observe and control system

Examples

Experimental program
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Embodiment 1

[0041] Please see attached figure 1 , an embedded universal material testing machine measurement and control system, including a main control board, a motor control board, a servo controller, a liquid crystal display, a keyboard, a force sensor and a grating encoder; it is characterized in that the motor control board communicates with the The motor interface of the main control board is connected, the motor control board is connected with the servo controller through the servo controller interface; the servo controller is connected with the AC servo motor through the control line, and the RS232 port of the servo controller is connected with the serial port 1 of the main control board through the serial port line connect;

[0042] Described CPLD refers to complex programmable logic controller;

[0043] Described SPI refers to synchronous serial communication;

[0044] The PWM refers to a pulse width modulator;

[0045] The central processing unit is an ARM central processin...

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PUM

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Abstract

The invention relates to a measurement and control system of an embedded universal material tester, which comprises a main control board, a motor control board, a servo controller, a liquid crystal display, a keyboard, a force sensor and a grating encoder, wherein the motor control board is connected with a motor interface of the main control board through a 26-pin data line, and connected with the servo controller through a servo controller interface; the servo controller is connected with an AC servo motor through a control line, and connected with a serial port of the main control board through a serial port line. The invention has the advantages that CPLD(XC9572) is used for collecting displacement pulse signal which has the characteristics of high frequency, real-time phase judgment and large flexibility, therefore not only the counting accuracy is significantly improved, but also the operation load of the main processor is relieved according to specific application requirement.

Description

【Technical field】 [0001] The invention relates to the technical field of measurement and control systems for material testing machines, in particular to an embedded measurement and control system for universal material testing machines. 【Background technique】 [0002] According to the control method, the material testing machines produced at home and abroad mainly include: mechanical, hydraulic and electronic. Now the production of mechanical material testing machines is almost at a standstill. Only a few foreign manufacturers are still producing, and the products are becoming less and less. Electronic material testing machine is a kind of material testing machine that develops rapidly in recent years. Electronic material testing machines can be subdivided into two categories: embedded and microcomputer. Embedded material testing machine, the core of its control system is a single-chip microcomputer or microcontroller, which can be used for some relatively simple applicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/00
Inventor 易建军张云锐陈昌明丁玉洁薄伟
Owner EAST CHINA UNIV OF SCI & TECH
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