Sains Malaysiana 41(5)(2012): 611–615

 

A Simple Automated System for Hall Effect Measurements

(Sistem Automasi Ringkas untuk Pengukuran Kesan Hall)

 

 

Ariffin Abas , Z.A.Talib & Z.A.Wahab

Department of Physics, Universiti Putra Malaysia, 43400 Serdang Selangor, D.E. Malaysia

 

S.A. Halim*

Institute of Mathematical Research (INSPEM), Universiti Putra Malaysia

43400 Serdang Selangor, D.E. Malaysia

 

Received: 29 June 2011 / Accepted: 29 November 2011

 

ABSTRACT

This project deals with the development of a computer interfacing technique for the study of Hall effect. A stepper motor with resolution of 0.1 mm was used to move a pair of permanent magnet backward and forward against the sample. The General Purpose Interface Bus (GPIB) card together with a digital nano voltmeter and teslameter using serial port siri RS232, interface were used to measure the potential difference and magnetic field strength, respectively. Hall effect for YBa2Cu3-xTixO7-δ system (x=0.00, 0.01, 0.03 and 0.05) showed positive sign Hall coefficient showing that the material is a hole type carrier at room temperature. Parameters such as Hall coefficient and charge carrier concentration were also display on the front panel of Lab View programming.

 

Keywords: Charge carrier concentration; Hall coefficient; Hall effect

 

ABSTRAK

 

Projek ini berkaitan dengan pembangunan teknik antaramuka untuk mengkaji kesan Hall. Sebuah motor pelangkah dengan resolusi 0.1 mm digunakan untuk menggerakkan sepasang magnet kekal ke hadapan dan belakang terhadap bahan ujian. Kad kegunaan am antaramuka bas (GPIB) bersama dengan nanovoltmeter dan teslameter menggunakan port siri RS232, masing-masing digunakkan untuk mengukur beza keupayaan dan kekuatan medan magnet. Kesan Hall untuk sistem YBa2Cu3-xTixO7-δ (x=0.00, 0.01, 0.03 dan 0.05) yang telah dikaji menunjukkan sistem adalah didominasi oleh lohong pada suhu bilik. Parameter seperti koefisien Hall dan ketumpatan pembawa cas juga dipaparkan pada panel hadapan program Lab view.

 

Kata kunci: Kesan Hall; ketumpatan pembawa cas, koefisien Hall

REFERENCES

Basil, H. 2011. A mimicking human arm with 5 DOF controlled by LabView. IACSIT International Journal of Engineering and Tech 3(1): 9-15 .

Brandley Armen. 2007. Hall Effect Experiment. Tennessee, Department of Physics and Astronomy.

Da Luz, Santos, C. Shigue; C. Carvalaho, F. & Machado, A. 2009. The Van Der Pauw methods of measurement in high Tc superconductors. Journal Material Science 27(2): 569-579.

Edward Ramsden. 2006. Hall-Effect Sensors Theory and Application (2nd ed.). Newnes Texas USA: Elsevier Science.

Kai Qian. 2009. Embedded Software Development with C. London, New York, Dordrecht, Heidelberg: Springer

Kalman, CJ. 1995. LabView: A software for data Acquisition, Data analysis and Instrument Control. Journal of Clinical Monitoring 1: 51-58.

Lisa, K. Wells. & Jeffrey, Travis. 1997. Lab VIEW For Everyone, Graphical Programming Made Even Easier. New Jersey: Prentice Hall Virtual Instrumentation Series.

Pao, Chuan. Agha, J. Donald, P. & Zeynep, C. 1997. Hall effect in semi conducting epitaxial and amorphous Y-Ba-Cu-Othin films. Journal of Applied Physics 8(10): 6686-6673.

Sumathi, S. 2007. Lab View based Advanced Instrumentation System. Heidelberg London New York: Springer.

Yong, Z. Jiansheng, X. Zhenhui, H. Shifang, S. & Qirui, Z. 1987. Hall Effect in superconducting Oxide Ba-Y-V-Cu-O. Chinese Phys. Letter 5(5): 221-224.

 

 

*Corresponding author; email: ahalim@science.upm.edu.my

 

 

 

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