Intensity Control of Triangulation Based PSD Sensor Independent of Object Color Variation

被引：4

作者：

Jung, Jong Kyu ^{[1
]}

Kang, Seong Gu ^{[1
]}

Nam, Joon Sik ^{[2
]}

Park, Kyi Hwan ^{[3
]}

机构：

[1] Gwangju Inst Sci & Technol GIST, Dept Informat & Mech, Grad Sch, Kwangju 500712, South Korea

[2] Electromagnet Syst EM4SYS Co, Kwangju 500706, South Korea

[3] Gwangju Inst Sci & Technol GIST, Sch Informat & Mechatron, Kwangju 500712, South Korea

来源：

IEEE SENSORS JOURNAL | 2011年 / 11卷 / 12期

基金：

新加坡国家研究基金会;

关键词：

High linearity; intensity control; position sensitive detector; pulsed amplitude modulation; POSITION-SENSITIVE DETECTOR;

D O I：

10.1109/JSEN.2011.2157968

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Intensity control of triangulation based position sensitive detector(PSD) sensor is addressed to achieve high linearity against object color variation. The controlled signal is added to the pulse amplitude modulation (PAM) signal of the PSD in order to have the beam intensity of photo diode be regulated constant. The control performance for object color variation is compared with the result when intensity control is not applied. Analytical and experimental results indicate that intensity control provides more accurate and higher linearity than that of PSD sensor without using the intensity control by using analysis and experiments.

引用

页码：3311 / 3315

页数：5

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