| 便携式周期信号分析仪的研制 |
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| 引用本文： | 聂宜茂,范维贞,李法德,聂雷.便携式周期信号分析仪的研制[J].农业工程学报,1997,13(2):193-197. |
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| 作者姓名： | 聂宜茂 范维贞 李法德 聂雷 |
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| 作者单位： | 山东农业大学;山东农业大学;山东农业大学;山东农业大学 |
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| 摘 要： | 便携式周期信号分析仪由８０９８单片机和ＤＭＦ５００２点阵式液晶平面显示器组成。可以同时显示信号的波形图、频谱图和数据，通过键盘可控制图形的放大、缩小、左移、右移，可以对屏幕进行拷贝。该仪器可用于在现场对机械设备进行故障诊断。文中介绍了其点阵液晶屏幕显示的一般方法、数字滤波的应用、ＦＦＴ的误差分析、减小误差的途径以及实际应用举例。
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| 关 键 词： | 点阵液晶显示 ８０９８单片机 机械设备故障诊断 数字滤波 |
| 收稿时间： | 1996/12/25 0:00:00 |
Development of Portable Periodic Signal Processor |
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| Nie Yi-mao,Fan Vei-zhen,Li Fa-de and Nie Lei.Development of Portable Periodic Signal Processor[J].Transactions of the Chinese Society of Agricultural Engineering,1997,13(2):193-197. |
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| Authors: | Nie Yi-mao Fan Vei-zhen Li Fa-de and Nie Lei |
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| Abstract: | A portable periodic signal processor consists of 8098 chip microprocessors and DMF5002 lattice liquid crystal plane display. It can display the waveform, frequency spectrum and data of the signal simultaneously. The amplifying of figure, and its reducing and moving are controled by keyboard. The screen can be copied. The processor can be applied to diagnose machine failures. This paper introduced the method for lattice liquid crystal screen display, the applying of numeral wave filtration, the error analyzing, the strategy of reducing error,as well as some applicatiom examples. |
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| Keywords: | Lattice liquid crystal 8098 chip microprocessors Machine failure diagnose Numeral wave filtration |
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