Technical note: observations of intermittent electromagnetic interference on impedance respiration monitors.
The sensitivity of three different types of impedance-respiration recorders (impedance pneumographs) to electromagnetic interference was demonstrated using a dummy subject (loop antenna) and human subjects with transchest electrodes. It was found that the impedance recorders detected electromagnetic energy emitted by sparking thermostat contacts, a soldering gun, a hot-air gun, an electric hair clipper and a fluorescent lamp, all of which were turned on and off to generate the electromagnetic energy.
Purdue University, West Lafayette, IN 47907, USA.
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Geddes
D003625:Data Collection; D017097:Electric Impedance; D004574:Electromagnetic Fields / Q000009:adverse effects*; D004868:Equipment Failure; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation* / Q000592:standards; D012119:Respiration; D014481:United States