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基于可编程多轴控制器的红外传感器片上测试系统设计 被引量:1
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作者 叶雨欣 焦斌斌 +2 位作者 孙灵芳 孔延梅 刘瑞文 《科学技术与工程》 北大核心 2014年第34期213-218,共6页
探针测试台是一种传统半导体工艺中间测试设备,用于在硅片划片前测试电子器件性能、良率,并给出其在晶圆上分布的映射图表。目前国内外自动或半自动探针测试台都是针对传统IC电路设计,采用封闭式结构,无法根据传感器多变的特性、复杂的... 探针测试台是一种传统半导体工艺中间测试设备,用于在硅片划片前测试电子器件性能、良率,并给出其在晶圆上分布的映射图表。目前国内外自动或半自动探针测试台都是针对传统IC电路设计,采用封闭式结构,无法根据传感器多变的特性、复杂的测试环境需求完成对器件的片上测试。采用美国Delta Tau公司推出的PMAC可编程多轴运动控制器作为核心控制系统,构建了一套针对红外热电堆器件特殊测试需求的批量化片上测试系统。该测试系统具有响应速度快、控制精度高、可扩展性强的特性,不仅可满足红外热电堆器件的片上批量化测试需求,还可通过定制性的模块删减以满足不同传感器的片上测试。 展开更多
关键词 可编程多轴控制器(programmable multi-axis controller PMAC) 自动探针台 开放式数控系统
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Study on Approach for Computer-Aided Design and Machining of General Cylindrical Cam Using Relative Velocity and Inverse Kinematics
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作者 Se-Hwan Park Byong-Kook Gu +1 位作者 Joong-Ho Shin Geun-Jong Yoo 《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 2002年第S1期205-,共1页
Cylindrical Cam Mechanism which is one of the best eq uipments to accomplish an accurate motion transmission is widely used in the fie lds of industries, such as machine tool exchangers, textile machinery and automa t... Cylindrical Cam Mechanism which is one of the best eq uipments to accomplish an accurate motion transmission is widely used in the fie lds of industries, such as machine tool exchangers, textile machinery and automa tic transfer equipments. This paper proposes a new approach for the shape design and manufacturing of the cylindrical cam. The design approach uses the relative velocity concept and the manufacturing approach uses the inverse kinematics concept. For the shape desig n, the contact points between the cam and the follower roller are calculated bas ed on relative velocity of which the direction is on the common tangential line, and then the whole shape of cam is determined from transformation of the coordi nate system. For the manufacturing procedures, the location and the orientation of cutter path can be allocated corresponding to the designed shape data. The in tegral NC code for multi-axis CNC machining center is created using the inverse kinematics concept from the data of the location and the orientation of cutter path. As the advantages of the proposed approach, the machine tool is designed t o having an alternative size in fabricating the general cam, while the tool must be fitted to diameter size of the follower in the conventional approach. Finally, CAD/CAM program, "Cylindrical DAM", is developed on C++ lan guage. This program can perform shape design, manufacturing and kinematics simul ation, which can make integral NC code for multi-axis CNC machining center. The proposed method can be applied easily on fields of industries. 展开更多
关键词 Cylindrical Cam Mechanism(CCM) shape design rel ative velocity method NC Code multi-axis CNC machining center inverse kinema tics
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