Melinda Melinda, Agus Santoso Tamsir, Sarah Afifah, Dadang Gunawan
Electrochemical Impedance Spectroscopy (EIS) has been a well-known method that popularly used in creating a high sensitivity of the sensor. This detection method uses a multi-spectral approach, complex data analysis, a relatively fast and also accurate measurements. We describe the method of sensing using a multi spectral capacitive sensor (MSCS) which has based on the EIS principal. Results analyses were done for 150 data sets that have been taken from pure water using MSCS. The output of this sensor is shown in a 3D (Dimension) image which is known as HHF (High High-Fluctuation) and also represents the amplitude of fluctuation in noise spectral frequency. In this study, we manage to define the effect of impedance in the sensor system to the output with such qualitative and quantitative observation. There are two types of impedance used, which are 3.3 Mω, and 8.2 Mω, respectively. The result will reveal the amplitude values. Hence, it is easier to observe the fluctuation value and consistency value of the material measured. © 2018 IEEE.
Electrical Engineering Department, Universitas Indonesia, Engineering Faculty, Depok, Jawa Barat, 16424, Indonesia; Electrical and Computer Engineering Department, Engineering Faculty, Syiah Kuala University, Darussalam, Banda Aceh, 23111, Indonesia
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