Electromagnetic Compatibility to Bio-Medical Signals Using Shielding Methods
نویسنده
چکیده
This paper presents The Electromagnetic Interference effect from power line noise in Multi Speciality Hospital to Bio-Medical signals. The study includes the design of Bio-Medical signal Generating circuits that is used to eliminate the power line noise from the signal. The Bio-Medical system basically is a combination of Instrumentation Amplifier, High pass filter, Low pass filter, and Notch filter. There are several other circuits developed in this study which are voltage reference, ac-coupling circuit and low pass filter for voltage input from USB power supply. The usage of shielding methods is to get the real Bio-Medical signal without electromagnetic interference from the power line. Shield Methods prevents a range of outside noise from coming into the shield. Therefore, the data taken inside the shield is free from Electrical noise without using notch filter. The result of this study showed that faraday shield can eliminate 50Hz power line noise in BioMedical signal
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