Perancangan Sistem Monitoring Tingkat Kekeruhan Air Secara Realtime Menggunakan Sensor TSD-10
DOI:
https://doi.org/10.25077/jif.8.1.9-16.2016Abstract
Sebuah sistem monitoring tingkat kekeruhan air secara realtime dengan menggunakan sensor TSD-10 telah dirancang. Tingkat kekeruhan air diukur dengan memanfaatkan perubahan tegangan sensor akibat perubahan kekeruhan. Perancangan sistem monitoring ini terdiri dari perancangan perangkat keras dan perangkat lunak. Perangkat keras terdiri dari sistem sensor, driver motor dc menggunakan IC L293D, sistem minimum mikrokontroler ATmega8, dan modul USBtoSerial. Perancangan perangkat lunak menggunakan program BASCOM 2.0.75 untuk mikrokontroler dan Borland Delphi 7 untuk sistem GUI. Perangkat yang dirancang mampu melakukan pengukuran secara realtime dan menampilkan dalam bentuk angka serta menyimpan dalam bentuk database. Pengumpulan data dilakukan dengan membandingkan sistem yang dirancang dengan alat ukur kekeruhan standar HACH 2100N. Data yang diperoleh melalui pengukuran dianalisis menggunakan teori kesalahan dan interpolasi. Berdasarkan analisis yang dilakukan didapatkan tegangan keluaran sensor berkurang dengan kenaikan kekeruhan air dengan sensitivitas 2 mV/NTU. Derajat korelasi linier sensor didapatkan sebesar R2 = 0,99 dan persentase ketepatan rata-rata pengukuran 93,49%.
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