RANCANG BANGUN SISTEM POTENSIOSTAT MENGGUNAKAN ARDUINO UNO

DIMAS SYAFINDRA, . (2017) RANCANG BANGUN SISTEM POTENSIOSTAT MENGGUNAKAN ARDUINO UNO. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

Potensiostat merupakan suatu perangkat dalam pengujian elektrokimia modern yang digunakan untuk menganalisis karakteristik suatu larutan melalui respons arus akibat penerapan potensial pada larutan tersebut. Dalam penelitian ini telah dibuat suatu rancang bangun sistem potensiostat portable menggunakan mikrokontroler ATMega328P dalam sistem minimum Arduino Uno. Rancang bangun sistem potensiostat ini dilengkapi dengan aplikasi Android yang bertugas menerima dan mengirimkan data dari dan ke potensiostat melalui perantara bluetooth. Data yang dikirimkan berupa data pengatur operasional potensiostat dan data yang diterima berupa data respons arus dan potensial ketika digunakan dalam pengujian elektrokimia. Hasil pengujian menunjukkan bahwa rentang pengukuran potensial potensiostat ini yaitu antara -1.1976 V sampai dengan 1.1989 V dengan rentang pengukuran arus antara -4.98 mA sampai dengan 5 mA. Kesalahan relatif rata-rata pengukuran potensial ketika sapuan maju dan balik yaitu 0.24% dan 0.64% serta nilai RMSE (root mean square) rata-rata pengukuran potensial ketika sapuan maju dan balik yaitu 0.0034 dan 0.0023. Sedangkan kesalahan relatif rata-rata pengukuran arus ketika sapuan maju dan balik yaitu 0.75% dan 0.53% serta nilai RMSE rata-rata pengukuran arus ketika sapuan maju dan balik yaitu 0.0075 dan 0.0065. Potentiostat is a device of modern electrochemical testing which is used to analyze the characteristic of a solution through the current response due to potential applied into the solution. In this research a portable potentiostat system has been designed by using ATMega328P microcontroller in Arduino Uno minimum system. Design of this potentiostat system is equipped with an Android application that is tasked with receiving and transmitting data from and to the potentiostat via a bluetooth interface. The data transmitted in the form of operational data of potentiostat and data received in the form of current and potential response when potentiostat used in electrochemical testing. The result show that the potential measurement range of this potentiostat is between -1.1976 V to 1.1989 V with the current measurement range between -4.98 mA to 5 mA. The average relative error of potential measurement when forward and reverse scans is 0.24% and 0.64% and the average RMSE (root mean square error) values when forward and reverse scans is 0.0034 and 0.0023. The average relative error of current measurement when forward and reverse scans is 0.75% and 0.53% and the average RMSE values when forward and reverse scans is 0.0075 and 0.0065.

Item Type: Thesis (Sarjana)
Additional Information: 1) Dr. Esmar Budi, M.T 2) Dr. Iwan Sugihartono, M.Si
Subjects: Sains > Fisika
Divisions: FMIPA > S1 Fisika
Depositing User: sawung yudo
Date Deposited: 23 Mar 2022 02:37
Last Modified: 23 Mar 2022 02:37
URI: http://repository.unj.ac.id/id/eprint/25111

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