PEMBUATAN DAN KARAKTERISASI LVDT SEBAGAI SENSOR JARAK

Authors

  • Zasvia Hendri Jurusan Fisika Universitas Andalas
  • Wildian - Jurusan Fisika Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.2.3.%25p.2013

Abstract

Telah dilakukan pembuatan dan karakterisasi LVDT (linear variable differential transformer) sebagai sensor jarak. Sensor dibuat sebanyak tiga buah dengan memvariasikan diameter kumparan, panjang inti besi, dan jumlah lilitan. Karakterisasi meliputi hysteresis, repeatability, sensitivitas, dan rentang pengukuran yang dapat dilakukan sensor. Caranya adalah dengan melihat perubahan tegangan keluaran yang dihasilkan pada kumparan sekunder akibat perubahan jarak inti besi terhadap titik acuan. LVDT ini dapat digunakan untuk mengidera perubahan jarak suatu obyek dalam arah linier (searah sumbu kumparan). Derajat korelasi linier (R2) yang bervariasi dari 0,983 hingga 0,9961 pada diameter kumparan yang sama, LVDT dengan inti besi yang lebih panjang memiliki sensitivitas yang lebih tinggi dan lebar rentang pengukuran yang lebih panjang dibandingkan dengan LVDT dengan inti besi yang lebih pendek. LVDT dengan diameter kumparan yang lebih besar akan lebih sensitif jika menggunakan inti besi yang lebih pendek; sedangkan  LVDT dengan diameter kumparan yang lebih kecil akan lebih sensitif jika menggunakan inti besi yang lebih panjang. Sensitivitas terbesar yang diperoleh pada penelitian ini adalah 0,01609 V/mm untuk LVDT yang jumlah lilitan primernya 224 lilitan, jumlah masing-masing lilitan sekundernya 380 lilitan, diameter kumparannya 1,7 cm, dan panjang inti besinya 30 cm, dengan rentang pengukuran 0 - 90 mm. Hysteresis dan repeatability sensor LVDT yang menggunakan inti besi dengan panjang 30 cm lebih baik dibandingkan dengan yang menggunakan inti besi 6,7 cm.

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Published

2013-10-31

How to Cite

Hendri, Z., & -, W. (2013). PEMBUATAN DAN KARAKTERISASI LVDT SEBAGAI SENSOR JARAK. Jurnal Fisika Unand, 2(3). https://doi.org/10.25077/jfu.2.3.%p.2013

Issue

Vol. 2 No. 3: Juli 2013

Section

Articles

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Copyright (c) 2013 Zasvia Hendri, Wildian -

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