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采煤机设计生产率的确定 被引量:2
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作者 罗凤利 李光煜 于秀文 《煤矿机械》 北大核心 2004年第11期46-46,共1页
通过分析影响采煤机设计生产率的确定因素 ,利用数学求体积的知识 ,推导出了采煤机设计生产率的计算公式 ,并在综合考虑了技术因素及劳动组织、配套设备等对生产率的影响后 。
关键词 采煤机 理论设计生产率 技术设计生产率 实际生产率
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Design of Arbitrary Waveform Generator Based on Virtual Instrument Technology
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作者 郑娟娟 陶安利 +1 位作者 刘守山 卫阿盈 《Journal of Measurement Science and Instrumentation》 CAS 2011年第1期96-98,共3页
A desiga of arbitrary waveform generator using NI PXI- 5412 module (an arbitrary waveform generator) was provided in this paper, based on virtual instrument technology and LabVIEW. The generator can produce standard... A desiga of arbitrary waveform generator using NI PXI- 5412 module (an arbitrary waveform generator) was provided in this paper, based on virtual instrument technology and LabVIEW. The generator can produce standard function waveforms, such as sine, triangle, square wave with adjustable amplitude and frequency. It can also produce arbitrary waveforms of different data files importing by Analog Waveform Geaemtor Software. A heart dectric wavefonn was set as an example of arbitrary waveform generation. It has practical value, because the standard functions and heart electric waveforms generated by the generator can be used in laboratories. 展开更多
关键词 virtual instnanent modularized instrument waveform generator LABVIEW arbitrary waveform
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