Title :
Detection of periodic micro movements of the head using a flat sensors system
Author :
Billaudel, P. ; Lecolier, G. Villermain ; Pire, J. ; Laval, Y.
Author_Institution :
Fac. des Sci., Lab d´´Applications de la Microelectroni., Reims Univ., France
Abstract :
A device for the frequency measurement of micromovements of the head is described. The system uses two flat eddy current proximity sensors. They are included in oscillators whose frequencies are a function of target sensor distance. The first sensor realizes the head micromovements measurement. The second one eliminates the breathing movement. A set of about one hundred tests on healthy subjects shows that a periodic micromovement of a mean frequency of 9.7 cycles a minute is detected
Keywords :
biological techniques and instruments; biomechanics; frequency measurement; spatial variables measurement; breathing movement; eddy current proximity sensors; flat sensors system; frequency measurement; head; healthy subjects; human biomechanics instrumentation; mechanical measurements; oscillators; periodic micro movements; target sensor distance; Cranial; Digital filters; Eddy currents; Fast Fourier transforms; Filtering; Frequency measurement; Humans; Oscillators; Sensor phenomena and characterization; Sensor systems;
Conference_Titel :
Electrotechnical Conference, 1991. Proceedings., 6th Mediterranean
Conference_Location :
LJubljana
Print_ISBN :
0-87942-655-1
DOI :
10.1109/MELCON.1991.161947
