Apparatus for the purpose of measuring the sensitivity of a subj

Details Apparatus for the purpose of measuring the sensitivity of a subj Apparatus for the purpose of measuring the sensitivity of a subj

1992-10-22

1993-08-31

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

128746, A61B 122, A61B 512

Patent

active

052398722

ABSTRACT:
An apparatus for measuring the sensitivity of the subject to a perception of a vibration comprises a vibration emitter, a signal device which can be activated by the subject as a perception threshold is cross, and an electronic processing unit which includes devices for storing the frequency and level of vibration of each crossing, a device for controlling the frequency and level of vibration, a device for exploring a reference frequency level by a frequency scan and a device for searching the perception threshold corresponding to the vibration levels different from the reference level, by a series of iterative frequency scans carried out starting from a zone of non-perception and ending towards either a high frequency or a low frequency as soon as the perception threshold is reached.

REFERENCES:
patent: 3809811 (1974-05-01), Delisle et al.
patent: 4038496 (1977-07-01), Feezor
patent: 4615007 (1986-09-01), King et al.
H. Ide et al, "Relation Between Vibratory Sensibility and Electric Signal of Living Body", Medical and Biological Engineering, Sep. 1973, pp. 603-608.

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