TY - JOUR
T1 - Measurement of ambient vibration by self-mixing interferometry and its application to intrusion detection
AU - Donati, Silvano
AU - Martini, Giuseppe
AU - Hwang, Sheng Kwang
N1 - Publisher Copyright:
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE).
PY - 2018/5/1
Y1 - 2018/5/1
N2 - We present a self-mixing interferometer (SMI) vibrometer developed around a laser diode with a simple and compact analog processing of the fringe signal, and show that this instrument can readily detect ambient vibrations-which adversely affect mechanical material-working lathes. In addition, we find out that the vibrometer is an excellent intrusion detector, capable of discovering a man stepping several meters away from the sensor, thus hinting at an SMI application as an antithief sensor.
AB - We present a self-mixing interferometer (SMI) vibrometer developed around a laser diode with a simple and compact analog processing of the fringe signal, and show that this instrument can readily detect ambient vibrations-which adversely affect mechanical material-working lathes. In addition, we find out that the vibrometer is an excellent intrusion detector, capable of discovering a man stepping several meters away from the sensor, thus hinting at an SMI application as an antithief sensor.
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U2 - 10.1117/1.OE.57.5.051508
DO - 10.1117/1.OE.57.5.051508
M3 - Article
AN - SCOPUS:85045912609
SN - 0091-3286
VL - 57
JO - Optical Engineering
JF - Optical Engineering
IS - 5
M1 - 051508
ER -