Three Dimensional Membrane Vibration Measurement Using a Two Dimensional Position Sensitive Device

被引:1
作者
Bialek, Rafal [1 ]
Bialek, Kamila [1 ]
机构
[1] Mil Univ Technol, Fac Elect, PL-00908 Warsaw, Poland
关键词
PSD; 3D measurements; vibration measurement;
D O I
10.3390/s23010174
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This study presents the outcome of research into membrane vibrations in a 3D space performed using a system based on position sensitive device (PSD) sensors. Here, measurements were conducted for harmonic vibrations. The use of such detectors for assessing the movement of objects within a plane or space requires determining the position of more than one marker. The article reviews two methods for detecting the position of several light spots on a sensor's photosensitive plane: a marker sequential control method, and a method based on Fast Fourier Transform (FFT) that employs a square wave control signal. The authors present an approach to improving measurement accuracy for both methods. They also discuss the advantages and disadvantages of each.
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页数:14
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