Tremor measurement device
AssigneeAlcoholism & Drug Addiction Research Foundation
InventorsDuane H. Zilm, Howard L. Kaplan, Dominique M. Durand
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Abstract
Apparatus is provided in which a signal indicative of the tremor is sensed. This signal is amplified in a variable gain amplifier. During an initial time interval the size of the amplifier signal is determined and the gain of the amplifier is adjusted in response to the signal size. Then means are provided for indicating the size of frequency of the adjusted signal during a further time period to give a tremor measurement which may be relatively easily interpreted.
Claims14
Apparatus for measuring tremor in a part of a living body, including means for sensing tremor and providing an electrical signal indicative of said tremor, variable gain amplifier means for amplifying said signal, means for sensing the size of said amplified signal during an initial predetermined period of time, means responsive to said signal size sensing means to adjust the variable gain of said amplifier means to a suitable level, and means for determining and indicating the size and frequency of the signal of adjusted amplification during a further predetermined period of time.
Dependencies are inferred from the claim text.