YAHYA, ILHAM (2023) PERANCANGAN SENSOR MIT (MAGNETIC INDUCTION TOMOGRAPHY) UNTUK UJI KESALAHAN SAMBUNGAN LAS BAJA. S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.
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Abstract
One of the methods for conducting inspections on welding results is non-destructive testing (NDT). However, some NDT methods are relatively expensive. One alternative in the NDT method is Magnetic Induction Tomography (MIT) which utilizes the eddy current principle to map the conductive properties of an object. In this research, an MIT sensor is made which consists of 1 transmitting coil and 1 receiving coil. Tests were carried out at a frequency of 700 Hz, 7000 Hz, 40 kHz and 4 variations of defects. The test results show that the error in the welded steel joint and the hole in the steel plate is indicated by a decrease in the gain value. The sensor that has been made can detect defects in the form of strain with a width of 1 until 2 mm in welded steel joints and artificial holes with a diameter of 3,5 mm on unwelded steel plates. The selection of low frequency affects the depth of penetration that can be reached by the sensor and changes in the gain value more significantly.
| Item Type: | Thesis (S1) | |||||||||
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| Additional Information: | Salah satu metode untuk melakukan inspeksi pada hasil pengelasan adalah non-destructive testing (NDT). Namun beberapa metode NDT memerlukan biaya yang relatif mahal. Salah satu alternatif dalam metode NDT adalah Magnetic Induction Tomography (MIT) yang memanfaatkan prinsip eddy current untuk memetakan sifat konduktif suatu objek. Penelitian ini membuat sensor MIT yang terdiri dari 1 koil pemancar dan 1 koil penerima. Pengujian dilakukan pada frekuensi 700 Hz, 7000 Hz, 40 kHz dan 4 variasi cacat. Hasil pengujian menunjukan bahwa kesalahan pada sambungan las baja dan lubang pada pelat baja terindikasi oleh penurunan nilai gain. Sensor yang dibuat sudah dapat mendeteksi cacat berupa regangan dengan lebar 1 s.d. 2 mm pada sambungan las baja dan lubang buatan berdiameter 3,5 mm pada pelat baja tanpa las. Pemilihan frekuensi rendah mempengaruhi kedalaman penetrasi yang dapat dijangkau sensor dan perubahan nilai gain yang lebih signifikan. | |||||||||
| Subjects: | T Technology > T Technology (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | 03-Fakultas Teknik 03-Fakultas Teknik > 20201-Jurusan Teknik Elektro |
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| Depositing User: | Mr Ilham Yahya | |||||||||
| Date Deposited: | 22 Sep 2023 11:18 | |||||||||
| Last Modified: | 26 Sep 2023 09:20 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/29880 |
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