Widyaningrum Indrasari, Mitra Djamal, Wahyu Srigutomo, Ramli
Generally, detection system for magnetic material in soil subsurface using electromagnetic induction method consists of two parts, they are transmitter and receiver unit. A transmitter must be able to produce a continuous and stable AC current at a certain frequency, meanwhile receiver should be able to catch the secondary magnetic field of magnetic material in soil subsurface. The aim of this study was to develop a new AC current transmitter of detection system for the magnetic material in soil subsurface. This paper will describe the results of the development of AC current transmitter systems, distance characterization of the sensor detection toward horizontal solenoid positions, and characterization of magnetic material in the soil subsurface. It has successfully made the AC current transmitter system, composed of a sinusoidal signal generator, power amplifier, and a source of AC magnetic field. The output of the generator has a frequency varies: 1kHz, 2kHz, 5kHz, and 10kHz. We found that the AC current transmitter that has been developed able to work properly up to a frequency of 10kHz. © 2016 AIP Publishing LLC.
Department of Physics, Universitas Negeri Jakarta, Jl. Pemuda No.10, Rawamangun Jakarta, Indonesia; Department of Physics, Institut Teknologi Bandung, Jl. Ganesha No.10, Bandung, Indonesia; Department of Physics, Universitas Negeri Padang, Jl. Prof. Dr. Hamka Air Tawar, Padang, Indonesia
