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      Pengujian Rangkaian Rotary Encoder Menggunakan Hall Effect Sensor Untuk Mengukur Perubahan Tinggi Muka Air

      Rotary Encoder Series Testing by Using Hall Effect Sensor to Measure Water Level Change.

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      Date
      2011
      Author
      Anria
      Pawitan, Hidayat
      Budianto,Bregas
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      Abstract
      One of hydrology parameter is water level. Water level could describe characteristic of a watershed. The change of waterlevel can be measured by using water level floating type recorder. This tool works by measuring the direction and distance of movement through the rotation of pulley which rotated because of the waterlevel change. Commonly, that tool built with movement sensor and movement (rotary) encoder series. Rotary encoder series can be built by using IC (integrated circuit) 4093. By using hall effect sensor as movement sensor which is give input to rotary encoder series, water level change can be measured. Output signal from rotary encoder series have to process to get distance of water level change. Inverter series and monostable positive - negative edge trigger series with OR gates circuit as lattest output are aplide on that process. On this research, a half rotation on pulley produce a movement signal. Distance of that movement depend on pulley size. By using the 1cm diameter pulley, the resolution is about 1,57cm.
       
      Tinggi muka air merupakan salah satu parameter hidrologi. Tinggi muka air dapat menggambarkan karakteristik suatu daerah aliran sungai. Perubahan tinggi muka air dapat diukur dengan menggunakan alat ukur tinggi muka air tipe pelampung. Cara kerja dari alat tipe ini adalah dengan mengukur arah dan besar perubahan berdasarkan pergerakan pulley yang berputar karena adanya perubahan tinggi muka air. Pada alat tersebut umumnya terdapat sensor gerakan dan rangkaian penerjemah arah gerakan. Rangkaian penerjemah gerakan dapat dibentuk dari IC (integrated circuit) seri 4093. Dengan menggunakan hall effect latch sensor sebagai sensor gerakan yang memberikan input bagi rangkaian penerjemah arah gerakan, perubahan tinggi muka air dapat diketahui. Untuk dapat mengetahui besar perubahan tinggi muka air perlu dilakukan pengolahan terhadap sinyal output dari rangkaian penerjemah arah gerakan. Pengolahan sinyal tersebut dilakukan dengan menambahkan rangkaian inverter serta rangkaian monostable positive - negative edge trigger dengan output terakhir pada sirkuit dengan gerbang OR. Pada penelitian ini, untuk setengah putaran pada pulley dihasilkan satu sinyal yang menandakan gerakan naik ataupun turun. Besar gerakan tersebut dipengaruhi oleh ukuran pulley, Dengan menggunakan pulley bediameter 1cm didapatkan resolusi sebesar 1.57cm.
       
      URI
      http://repository.ipb.ac.id/handle/123456789/52487
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      • UT - Geophysics and Meteorology [1726]

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      Contact Us | Send Feedback
      Indonesia DSpace Group 
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