Hernita Kusuma Wardani
Jurusan Fisika, FSM, Universitas Diponegoro

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RANCANG BANGUN SISTEM AKUSISI DATA SENSOR MAGNETIK EFEK HALL UGN3503 MENGGUNAKAN KOMPUTER Kusuma Wardani, Hernita; Suryono, Suryono
YOUNGSTER PHYSICS JOURNAL Vol 1, No 1 (2012): Youngster Physics Journal Oktober 2012
Publisher : YOUNGSTER PHYSICS JOURNAL

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Abstract

This research is conducted a construction of data acqusition system of magnetic Hall effect sensors UGN3503 using computer. The system made consists of magnetic Hall effect sensors UGN3503, deferential amplifier, and mikrokontroler ATmega8535 minimum system. Magnetic Hall effect sensors UGN3503 is a magnetic field detecting sensors. The output voltage when there is no magnetic field is half of VCC. Therefore, the diferential amplifier is needed. Then, the coercing result is in the from of analogue signal. This analougue signal will be converted by ADC  internal ATmega8535 into digital data in 10 bit format. Data is transmitted by the USART that is series communication mode on ATmega8535 through RS-232 interface. The result of the data can be in the form of chart that can be shown on computer using Borland Delphi 7.0 and can be saved into Microsoft Excel. This system has been realized and can perform the final result in form chart and also can be saved. The result of the tool and sensor characteristic test with linear correlation coefficient value R = 0.995 to standard tool. Keyword: magnetic Hall effect sensors UGN3503, deferential amplifier, mikrokontroler ATmega8535 minimum system, ADC, USART