Physiological Tremor Acquisition and Compensation Techniques

Tremor is an involuntary, approximately rhythmic, oscillatory movement produced when muscles repeatedly contract or relax. It has relatively fixed frequency and amplitude. To overcome the occurrence of tremor which is the root cause for human imprecision during surgical procedure particularly in case of microsurgery, a system is required to measure the hand tremor at the surgeon handle and to reduce the same at the far end at tool tip. In this paper, we review the previous work on classification of tremor, tremor characterisation, tremor suppression schemes and also the recent developments in the work area. This paper looks at possible methods of acquiring the tremor signals and all major processing techniques utilized for the signal analysis carried out in the recent development.