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Being one of promising development trends of coordinate measuring machine(CMM), non-contact measuring model has been paid more and more attentions, which is especially suitable for those soft, fragile and easy-deformed workpiecs. CCD camera has pretty high precision for 2D image measurement and can capture plenty of information each time. Meanwhile, the laser probe can achieve very high precision...
CMM (Coordinate Measuring Machine) is used as an accurate measuring instrument in manufacturing and design of products. High accurate CMM is required by the development of super-finish, micro-machinery, micro-electronic mechanical systems (MEMS). The precision of CMM is influenced by its volumetric error and dynamic error. The volumetric error is the major component during slowly probing, but the...
Measurement of free-form surfaces is a requirement to assure quality and to reduce manufacturing costs and rework. An on-line measurement system combined coordinate measuring machine (CMM) and numerical controlled (NC) sandblast manufacturing equipment for large surface is presented in this paper. It uses transmission and position functions of NC machine and CMM's scan measuring function to make large...
The hand gestures used in Human Computer Interaction (HCI) are generally posed by complicated and large amplitude actions of arm /hand. Thus usable HCI instructions are few and HCI efficiency is low. This paper presents new hand shapes and the corresponding recognition system for the HCI with robot or Coordinate Measuring Machine. Using a touch pad to precept the touching of fingers, hand shapes posed...
Against the measurement for the roll angle of coordinate measuring machine and machine tools used the linear guide, based on the optical principle of optical components to linearly polarization light, a new and simple method for the roll angle measurement is proposed, in which a half wave-plate is used as sensitivity part. If the stage has a roll angle with respect to the reference base, it can be...
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