首页>
外国专利>
APPARATUS FOR MICROINDENTATION HARDNESS TESTING AND SURFACE IMAGING INCORPORATING A MULTI-PLATE CAPACITOR SYSTEM
APPARATUS FOR MICROINDENTATION HARDNESS TESTING AND SURFACE IMAGING INCORPORATING A MULTI-PLATE CAPACITOR SYSTEM
展开▼
机译：微压痕硬度测试和表面成像的装置，包含多层电容器系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A force, weight or position sensor unit and sensor element in a first embodiment. In a second embodiment, the sensor element of the first embodiment is incorporated into an apparatus for microindentation hardness testing and surface imaging which allows immediate imaging of the surface subsequent to hardness testing. The sensor uses a multi-capacitor system having drive and pick-up plates mounted on an appropriate suspension system to provide the desired relative motion when a force is applied to the pick-up plate. The output signal is run through a buffer amplifier and synchronously demodulated to produce a signal proportional to force or displacement. The sensor element is mounted on a scanning tunneling microscope base and a sample mounted on the sensor. The force sensor is used for both measuring the applied force during microindentation or micro hardness testing and for imaging before and after the testing to achieve an atomic force microscope type image of the surface topography before and after indentation testing.
展开▼
