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PCI-X总线的设计和验证测试卡
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作者 陈志元 王聪 《电子测试》 2001年第3期197-200,共4页
1990年代初Intel公司提出PCI(外围设备互连总线)的建议,代替沿用已久的ISA(工业标准体系结构)总线,同时推出奔腾微处理器芯片,使PC机进入64位的新一代产品.
关键词 PCI-X总线 设计 验证测试卡
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Method of Precise Auto Tool Setting for Micro Milling 被引量:2
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作者 赵孟 何宁 +1 位作者 李亮 黄逊彬 《Transactions of Tianjin University》 EI CAS 2011年第4期284-287,共4页
Based on microscope and image processing, a new method of auto tool setting for micro milling was presented. Firstly, a realtime image of tool setting area was obtained by microscope and CCD camera, then image process... Based on microscope and image processing, a new method of auto tool setting for micro milling was presented. Firstly, a realtime image of tool setting area was obtained by microscope and CCD camera, then image processing was carried out on this image and the gap between the tool and workpiece was calculated. The gap measurement was sent to motion controlling card to make the tool approach to the surface of workpiece. These steps were repeated until the gap is zero, which means that tool setting was finished. Moreover, a reliability verification test was conducted. Results indicated that the precision of tool setting is satisfactory. 展开更多
关键词 micro milling tool setting image processing
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