Mitigation of biofouling using electromagnetic fields in tubular heat exchangers-condensers cooled by seawater.
Research
RF Safe Research Library
Jan 1, 2014
This paper describes an engineering application of electromagnetic field (EMF) treatment to mitigate biofouling in seawater-cooled tubular heat exchanger-condensers. After allowing a biofilm to stabilize, EMF treatment was applied and was reported to precipitate dissolved ions and contribute to partial…
Response identification in the extremely low frequency region of an electret condenser microphone.
Research
RF Safe Research Library
Jan 1, 2011
This engineering study describes an experimental setup using a small electret condenser microphone connected to a notebook/PC to detect extremely low frequency signals. Using a small air cell made from a drilled DVD plate with a speaker and microphone on opposite sides, the microphone captured signals in the 0.5–20…