会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Micromachine friction test apparatus
    • 微机械摩擦试验装置
    • US06446486B1
    • 2002-09-10
    • US09299804
    • 1999-04-26
    • Maarten P. deBoerJames M. RedmondTerry A. Michalske
    • Maarten P. deBoerJames M. RedmondTerry A. Michalske
    • G01N356
    • B81B3/0021B81B2201/0292B81B2203/051G01N3/56G01N19/02G01N2203/0282G01N2203/0286G01N2203/0676G01N2203/0682
    • A microelectromechanical (MEM) friction test apparatus is disclosed for determining static or dynamic friction in MEM devices. The friction test apparatus, formed by surface micromachining, is based on a friction pad supported at one end of a cantilevered beam, with the friction pad overlying a contact pad formed on the substrate. A first electrostatic actuator can be used to bring a lower surface of the friction pad into contact with an upper surface of the contact pad with a controlled and adjustable force of contact. A second electrostatic actuator can then be used to bend the cantilevered beam, thereby shortening its length and generating a relative motion between the two contacting surfaces. The displacement of the cantilevered beam can be measured optically and used to determine the static or dynamic friction, including frictional losses and the coefficient of friction between the surfaces. The test apparatus can also be used to assess the reliability of rubbing surfaces in MEM devices by producing and measuring wear of those surfaces. Finally, the friction test apparatus, which is small in size, can be used as an in situ process quality tool for improving the fabrication of MEM devices.
    • 公开了一种用于确定MEM装置中静态或动态摩擦的微机电(MEM)摩擦试验装置。 通过表面微加工形成的摩擦试验装置基于支撑在悬臂梁的一端的摩擦垫,摩擦垫覆盖在基底上形成的接触垫。 可以使用第一静电致动器来使摩擦垫的下表面与接触垫的上表面接触,并具有受控且可调节的接触力。 然后可以使用第二静电致动器来弯曲悬臂梁,从而缩短其长度并在两个接触表面之间产生相对运动。 可以光学地测量悬臂梁的位移,并用于确定静摩擦或动摩擦,包括摩擦损失和表面之间的摩擦系数。 测试装置也可用于通过产生和测量这些表面的磨损来评估MEM装置中摩擦表面的可靠性。 最后,尺寸小的摩擦试验装置可以用作改进MEM装置制造的原位工艺质量工具。