Development of differential sensor interface for GSM communication /
This research work focuses on the design, simulation and implementation of differential resistive sensor interface. The importance of the findings of this work lies in exploring problems such as non-linearity errors for better accuracy and reducing long interface-chain for ease and simplicity of the...
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| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
Kuala Lumpur :
Kulliyyah of Engineering, International Islamic University Malaysia,
2011
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| Subjects: | |
| Online Access: | Click here to view 1st 24 pages of the thesis. Members can view fulltext at the specified PCs in the library. |
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| LEADER | 035710000a22003490004500 | ||
|---|---|---|---|
| 008 | 120111t2011 my ad g m 000 0 eng d | ||
| 040 | |a UIAM |b eng | ||
| 041 | |a eng | ||
| 043 | |a a-my-- | ||
| 050 | 0 | 0 | |a TK7872.D48 |
| 100 | 1 | |a Abdulwahab, Deji | |
| 245 | 1 | |a Development of differential sensor interface for GSM communication / |c by Deji Abdulwahab | |
| 260 | |a Kuala Lumpur : |b Kulliyyah of Engineering, International Islamic University Malaysia, |c 2011 | ||
| 300 | |a xvii, 168 leaves : |b ill. charts ; |c 30cm. | ||
| 500 | |a Abstract in English and Arabic. | ||
| 500 | |a "A dissertation submitted in fulfilment of the requirement for degree of Master of Science in Communication Engineering."--On t.p. | ||
| 502 | |a Thesis (MSCE)--International Islamic University Malaysia, 2011. | ||
| 504 | |a Includes bibliographical references (leaves 121-124). | ||
| 520 | |a This research work focuses on the design, simulation and implementation of differential resistive sensor interface. The importance of the findings of this work lies in exploring problems such as non-linearity errors for better accuracy and reducing long interface-chain for ease and simplicity of the system. The interface is explored and used along with potentiometer and a thermistor, both connected in a differential manner. The potentiometer is ultimately representing displacement while thermistor represents environmental condition of temperature. The design involves using a 555- timer, external components of resistors, diodes and a capacitor. Identification of the non-linear regions of the thermistor curve is carried out and the circuit is configured to operate over a linear segment. The resulting circuit is interfaced to a microcontroller and a GSM/GPRS modem, both properly programmed in specified code instructions. The results obtained are benchmarked with other recently published work and a better linearized output of the thermistor response curve is obtained. The circuit is analyzed before it is simulated using ORCAD PSPICE and MATLAB code. A comparison between the simulation and experimental results show the circuit's preferential utility over the circuits currently in use for similar applications. A frequency and voltage output are obtained, showing how a small change in differential value of the resistor can bring galloping effect on the signal path at temperature of 600C and an error of 0.1% resolution is found and reported. Through experiments, frequency and duty cycle responses are obtained to show that the proposed system is reliable, more accurate as its preferential advantages. | ||
| 596 | |a 1 | ||
| 650 | 0 | 0 | |a Detectors |x Design and construction |
| 650 | 0 | 0 | |a Microcontrollers |
| 650 | 0 | 0 | |a Transducers |
| 650 | 0 | 0 | |a Global system for mobile communications |
| 655 | 7 | |a Theses, IIUM local | |
| 690 | |a Dissertations, Academic |x Department of Electrical & Computer Engineering |z IIUM | ||
| 710 | 2 | |a International Islamic University Malaysia. |b Department of Electrical & Computer Engineering | |
| 856 | 4 | |u http://studentrepo.iium.edu.my/handle/123456789/4612 |z Click here to view 1st 24 pages of the thesis. Members can view fulltext at the specified PCs in the library. | |
| 900 | |a hab-ro-rose-hab-hm | ||
| 999 | |c 435084 |d 466491 | ||
| 952 | |0 0 |6 T TK 007872 D48 A136D 2011 |7 0 |8 THESES |9 756919 |a IIUM |b IIUM |c MULTIMEDIA |g 0.00 |o t TK 7872 D48 A136D 2011 |p 00011228440 |r 2017-10-20 |t 1 |v 0.00 |y THESIS | ||
| 952 | |0 0 |6 TS CDF TK 7872 D48 A136D 2011 |7 0 |8 THESES |9 847727 |a IIUM |b IIUM |c MULTIMEDIA |g 0.00 |o ts cdf TK 7872 D48 A136D 2011 |p 11100326882 |r 2017-10-26 |t 1 |v 0.00 |y THESISDIG | ||