A Simple Automated System for Hall Effect Measurements

作者：Abas Ariffin; Halim S A^*; Talib Z A; Wahab Z A

来源：Sains Malaysiana, 2012, 41(5): 611-615.

• Charge carrier concentration
• Hall coefficient
• Hall effect

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 (Gm) 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-xTi3O7-delta 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.

• 出版日期2012-5