Pengaruh Konsentrasi Oksigen Terlarut Terhadap Pengukuran Suseptibilitas Magn…

Poor water conditions are not only an indicator of environmental damage, but also a threat to the ecosystem. One of indicator water quality is determined by dissolved oxygen. In this research, an instrument was built to measure dissolved oxygen levels based on the susceptibility value of a solution at low frequencies of 1 Hz, 10 Hz and 100 Hz. A Magnetic instrument with an RC circuit are design…