Title :
Laser based smart displacement sensor
Author :
Postolache, O. ; Pereira, M. ; Girao, P.
Author_Institution :
Fac. of Electr. Eng., Tech. Univ. of Iasi, Romania
Abstract :
The paper presents a displacement measuring system based on one optical emitter (laser diode), two optical sensors and on a smart structure used for sensor data processing. The system is designed around the PIC16F877 8-bit microcontroller that powers the sensors, acquires data from the sensors and performs the intelligent processing based on a neural algorithm. Communication between the smart sensor and a personal computer (PC) is possible using a RS232 interface. A practical approach concerning the laser diode behavior, the on-line correction of the tilt angle influences, and the microcontroller implementation of the neural processing algorithm are also presented
Keywords :
displacement measurement; intelligent sensors; measurement by laser beam; microcontrollers; multilayer perceptrons; neural chips; neurocontrollers; optical sensors; peripheral interfaces; semiconductor lasers; 8 bit; PIC16F877 microcontroller; RS232 interface; artificial neural network; displacement measuring system; intelligent processing; laser based smart displacement sensor; laser diode; laser diode behavior; multilayer perceptron; neural algorithm; neural processing algorithm implementation; on-line tilt angle correction; optical emitter; optical sensors; personal computer; sensor data acquisition; sensor data processing; sensors; smart structure; Algorithm design and analysis; Data processing; Diode lasers; Displacement measurement; Intelligent sensors; Intelligent structures; Microcontrollers; Optical sensors; Sensor systems; Stimulated emission;
Conference_Titel :
Sensors for Industry, 2001. Proceedings of the First ISA/IEEE Conference
Conference_Location :
Rosemont, IL
Print_ISBN :
0-7803-6659-X
DOI :
10.1109/SFICON.2001.968520
