The magnetic fields produced by an electromagnet depends on the amount of current and voltage. A single current source can produce multi-field magnetic fields, the position of the solenoid connected to the electric current source, where there are multi connectors that can be switched based on the composition of the helical coil and from the data obtained that this can proved. This research was carried out in a helical and design of copper plates forming solenoid windings, each part of the partition plate numbered 10, 15, 20, and 30 connected to electric currents of 1.5, 3, and 4.5 Ampere and the switch functioned to flow electric current to the partition based on the number of electromagnet plates. The experimental results obtained that the number of plates can produce multi magnetic field with a single current source with a range 0 to 8 mT which is measured using Gaussmeter. The benefits of this research will have impact on physical and engineering research related to the use of electromagnets that are portable and concise but with a single electric current source with multi magnetic fields, besides the next research has the potential to be developed in order to produce high magnetic fields.
AbstrakPenemuan elektromagnet telah banyak memberikan pengaruh yang besar terhadap perkembangan ilmu pengetahuan dan teknologi, yang mana oleh karena sifat kemagnetan yang bisa diatur sehingga dapat memberikan manfaat praktis diantaranya motor listrik, relai, generator pembangkit listrik, dan saklar pintu otomatis. Pada penelitian ini dilakukan suatu desain dan rancangan elektromagnet berupa pelat tembaga yang di cetak berbentuk kepingan koin yang terdapat lubang ditengah untuk inti besi. Setiap pelat terdapat isolator yang memisahkan antar tiap pelat yang disusun berulir sehingga terbentuk heliks lilitan pelat tembaga. Hasil eksperimen didapat bahwa rancangan elektromagnet dengan menggunakan pelat tembaga, dapat menghasilkan medan magnet, 0 hingga 4 mTesla, dengan pengukuran menggunakan Gaussmeter. Implikasi pada penelitian ini akan berdampak pada riset fisika maupun ilmu rekayasa yang berkaitan pada penggunaan elektromagnet yang bersifat portabel dan ringkas, selain itu berpotensi untuk dikembangkan agar dapat menghasilkan medan magnet tinggi.Kata-kata kunci: elektromagnet, tesla, pelat, tembaga, magnetik, medan. AbstractThe discovery of electromagnets has had a great influence on the development of science and technology, which is due to the magnetic nature that can be regulated so that it can provide practical benefits including electric motors, relays, generator power plants, and automatic door switches. In this study a design and design of an electromagnet in the form of a printed copper plate was formed in the form of a coin with a hole in the middle for an iron core. Each plate has an insulator that separates between each plate that is arranged in a thread so that a helical coil of copper plate is formed. The experimental results obtained that the electromagnetic design using a copper plate, can produce a magnetic field, 0 to 4 mTesla, with measurements using Gaussmeter. The implications of this study will have an impact on physics research and engineering science related to the use of electromagnets that are portable and compact, besides that they have the potential to be developed in order to produce high magnetic fields. PENDAHULUANPengembangan elektromagnet tipe pelat tembaga pertama kali dikembangkan oleh Francis Bitter di MIT, pada tahun 1936, sehingga dinamakan elektromagnet tipe Bitter. Magnet yang dikembangkan adalah koil berbentuk heliks yang dibentuk oleh tumpuan pelat tembaga yang didesain berbentuk cakram, yang
Discovery of electromagnets has had a great influence on the development of science and technology, which due to the nature of the magnetism that can be arranged so that it can provide practical benefits including electric motors, relays, power generators, and automatic door switches. In this research, an electromagnet the form of copper plate with hole in the middle for iron core. Each plate has an insulator that separates between each plate which is arranged in threads to form a helical coil of copper plate. Value obatained from design electromagnets using copper is 0 to 8 mT, with measurement using Gaussmeter as a reference in the development of sensors using giant magnetoresistance. The implications and application from this research is portable and concise high field in the form of copper plate models. In the future it potential apllication on biomedical and engineering.
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