Feedback controlled infrared proximity sensing system

被引:2
|
作者
Yang, Ming [1 ]
机构
[1] Coventry Univ, Dept Aviat Aerosp Elect & Elect Engn, Coventry CV1 5FB, W Midlands, England
关键词
Distance measurement; Proximity sensor; Inferred sensor; Feedback control; SENSORS;
D O I
10.1016/j.measurement.2015.02.014
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A feedback controlled infrared proximity system has been presented. It exceeds the ranging performance of a conventional optical reflectance proximity system. Because of the use of dual infrared receivers, the influence of surface reflection properties on the accuracy of the distance measurement is significantly reduced and the measurement accuracy is greatly improved over a relative long distance. A pulse modulation approach has been used to minimise the interference of ambient light and allow the system to have much higher output power and wider dynamic range. Due to the introduction of adaptive control of the output power, the distance can be measured just based on the output of a single infrared receiver. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:81 / 86
页数:6
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