Portable vibration controller using USB interface

A USB interface, portable technology, used in the field of portable vibration controllers, can solve the problems of unsatisfactory system performance, inconvenient use and maintenance, and difficult to improve performance, and achieve enhanced system real-time performance, convenient movement and portability, and improved stability. Effect

Inactive Publication Date: 2007-10-03
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The accuracy of the analog-to-digital and digital-to-analog converters used is 12 bits, and the processor used is a low-end DSP chip. In addition, the microcomputer participates in most of the signal ...

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  • Portable vibration controller using USB interface
  • Portable vibration controller using USB interface
  • Portable vibration controller using USB interface

Examples

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Embodiment Construction

[0022] A preferred embodiment of the present invention is as follows: adopt the portable vibration controller of USB interface, as shown in Figure 1, comprise a data acquisition module 1, a signal processing module 3, a data storage module 2, a signal output module 6, A logic control module 5 and a USB communication module 4 .

[0023] Referring to Fig. 2, the above-mentioned data acquisition module 1 core includes 2 programmable gain amplifiers 11, 2 anti-aliasing filter circuits 12 and 2 TI (Texas Instruments) A / D converter ADS1271 (13). In this module 1, collect two-way vibration signals, send in the programmable gain amplifier PGA103U (11) after passing through the charge amplifier, PGA103U can carry out 1, 10, 100 times amplification to the signal, MAX293 analog filter (12) serves as The low-pass filter filters out high-frequency signals, and the cut-off frequency of the filter can be changed to meet different requirements by adjusting the size of the external capacitor. ...

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Abstract

The present invention relates to a portable vibration controller adopting USB interface. Said portable vibration controller includes the following several portions: dual-channel data acquisition module, signal processing module, data storage module, signal output module, logic control module and USB communication module. Said invention is simple in structure and is high in accuracy.

Description

technical field [0001] The invention relates to a vibration test controller, in particular to a portable vibration controller adopting a USB (Universal Serial Bus) interface. Background technique [0002] With the development of modern industry, especially the development of national defense industry, the reliability requirements of equipment are getting higher and higher. Under this background, the reliability test with vibration test as the core has been widely used. The vibration test is to simulate the vibration environment of the product under the actual working state on the vibration table, and the function of the controller is to make the vibration table produce the specified vibration. Therefore, the defects in the structure, material and manufacturing process of the product can be found early through the vibration test, and the early failure of the product can be exposed to provide a basis for the improvement of the product. Generally, existing vibration control sy...

Claims

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Application Information

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IPC IPC(8): G05B19/042G05B19/418G01M7/00
CPCY02P90/02
Inventor 陆徐平杨吴冰李渝曾陆明
Owner SHANGHAI UNIV
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