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基于DSP的柴油機(jī)缸內(nèi)壓力動(dòng)態(tài)采集系統(tǒng)
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    摘要:

    進(jìn)行了基于數(shù)字信號(hào)處理器（DSP）的柴油機(jī)缸內(nèi)壓力動(dòng)態(tài)采集的研究。提出了缸內(nèi)壓力動(dòng)態(tài)采集、數(shù)據(jù)處理、數(shù)據(jù)通訊方法。設(shè)計(jì)了缸內(nèi)壓力動(dòng)態(tài)采集系統(tǒng)的硬件、軟件，進(jìn)行了動(dòng)態(tài)采集系統(tǒng)的采集性能和穩(wěn)定性試驗(yàn)。試驗(yàn)結(jié)果表明，基于DSP的缸內(nèi)壓力動(dòng)態(tài)采集系統(tǒng)能滿(mǎn)足柴油機(jī)工作要求。

    Abstract:

    In order to meet the demand of dynamic acquisition in diesel engine, study on dynamic acquisition of cylinder pressure based on digital signal processor (DSP) was conducted. The acquisition method and data process, data communication of dynamic acquisition were proposed, partial acquisition area between 50°CA( crank angle) before top dead center (TDC) and 100°CA after TDC has been presented. Digital signal processor (DSP) and high speed USB (universal serial bus) were introduced into dynamic acquisition, hardware and software for dynamic acquisition system have been designed. The bench test for acquisition performance and stability of this system was finished. Test result showed that dynamic acquisition system of cylinder pressure based on DSP could meet the requirement of diesel engine.

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王軍,張幽彤,王憲成,楊霞.基于DSP的柴油機(jī)缸內(nèi)壓力動(dòng)態(tài)采集系統(tǒng)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(4):34-38.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(4):34-38.

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