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Portable vibration controller by adopting USB interface

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

Inactive Publication Date: 2009-03-04
SHANGHAI UNIV
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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 processing tasks. Under this hardware architecture, the system performance is not ideal, and the speed Slow, low precision, small dynamic range, hard to improve performance, inconvenient to use and maintain

Method used

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  • Portable vibration controller by adopting USB interface
  • Portable vibration controller by adopting USB interface
  • Portable vibration controller by adopting USB interface

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Embodiment Construction

[0022] A preferred embodiment of the present invention is as follows: a portable vibration controller using a USB interface, as shown in Figure 1, includes 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] see figure 2 , the core of the above-mentioned data acquisition module 1 includes two programmable gain amplifiers 11, two anti-aliasing filter circuits 12 and two TI (Texas Instruments) A / D converters ADS1271 (13). In this module 1, two vibration signals are collected and sent to the programmable gain amplifier PGA103U (11) after passing through the charge amplifier. The PGA103U can amplify the signals by 1, 10, and 100 times. The MAX293 analog filter (12) is used as the 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 externa...

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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 using a Universal Serial Bus (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. In this context, the reliability test with vibration test as the core has been widely used. The vibration test is to simulate the vibration environment under the actual working state of the product on the shaking table, and the function of the controller is to make the shaking 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, the early failure of the product can be exposed, and the basis for the improvement of the product can be provided. Generally, the existing vibr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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