Development of a low cost two axis force sensor

Rahman, Md. Mozasser and Khairul Hassan, SK and Choudhury, Tasnuva Tabashhum (2013) Development of a low cost two axis force sensor. The Online Journal on Electronics and Electrical Engineering (OJEEE), 5 (2). pp. 535-538. ISSN 2090-0279

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Abstract

This paper presents a low cost smart two axis force sensor with Analog-to-Digital (RS232 and SPI) interfaces, especially suitable for measuring low and moderate forces. A mechanical structure is made by rapid prototyping machine. Pair of resistive sensor is used for each axis. A computer controlled 12-bit A/D converter is employed to obtain a higher resolution. The nonlinear output of the sensor converts to linear output by piecewise linearization technique. A digital 60 Hz notch filter is implemented in the micro computer for rejecting the Ac supply noise. Third order digital FIR filter is used for removing noise from final output. Filtered data is converted into pulse width modulation where duty cycle is proportional to applied force. The filtered data is converted into Digital RS232 and SPI format for interfacing the digital world. Finally the performances of the sensor have been justified.

Item Type:	Article (Journal)
Additional Information:	5663/29707
Uncontrolled Keywords:	Force sensor, low cost, resistive sensor, PWM
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User:	Dr. Md Mozasser Rahman
Date Deposited:	23 Apr 2013 12:13
Last Modified:	23 Apr 2013 12:13
URI:	http://irep.iium.edu.my/id/eprint/29707

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