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Sainstek : Jurnal Sains dan Teknologi
Published by Institut Agama Islam Negeri Batusangkar
ISSN : 20858019     EISSN : 2580278X     DOI : http://dx.doi.org/10.31958/js
Core Subject : Science, Education,
Computer Science & IT Other
Arjuna Subject : Umum - Umum
Articles 12 Documents
 1   2 
Search results for , issue "Vol 2, No 1 (2010)" : 12 Documents clear
DESAIN ALAT HITUNG KECEPATAN SUDUT BERBASIS SENSOR MAGNETIK FLUXGATE Yulkifli, Yulkifli; Anwar, Zul; Djamal, Mitra
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (928.736 KB) | DOI: 10.31958/js.v2i1.10

Abstract

This paper explains the design of angular velocity apparatus (Gyrometer) base on fluxgate sensor. The design of sensor elements consists of the double secondary coil (pick-up) and excitation coil with 10 layers, core layer is put into the isolative cavity. Fluxgate magnetic sensor works based on the principles of second harmonics, the intensity of magnetic fields proportional to the output sensor voltage. Based on data analysis on to sensor characterization it was obtained that the sensitivity 4.52 mV/?T, ±20 ?T in ranges.  The maximum absolute error obtained from polynomial function approach in 0.53 ?T and the relative error is 1.3% on magnetic fields ~19 ?T. In this research the sensor can measure the frequency in the maximum absolute and relative  error 0.68, 0.58, 0.17, 0.71 and 0.026%, 0.022%, 0.006%, 0.021%, whereas the disc magnet with the number of magnet 2, 4, 8 and 16 respectively.Key words: angular velocity, fluxgate sensor, coil, second harmonic
PROSES DECISION TREE PADA DATAMINING DENGAN ALQORITMA ID3 MUCHLIS, LITA SARI
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (660.205 KB) | DOI: 10.31958/js.v2i1.3

Abstract

This article was study about decision process data meaning with algoritma ID3. Data meaning is an atomatic extraction process of large data. It was found with a contour data. Data meaning have a function to produce a different contour wich other. The function of classification of data meaning is helping write decision tree, the function with algoritma ID3.Key words: data meaning, classification, decision tree 

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