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MEDICAL INSTRUMENTATION. 2010103804 윤지선. 2014.06.03. Electromagnetic spectrum. Audio Frequency Radio Frequency. 20 – 20.000Hz. Ex) 30Hz = λ 300Hz = λ. Low Frequency : 30kHz (10km) – 300kHz (1km) Medium Frequency : 300kHz ( 1km ) – 3MHz ( 100m)
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MEDICAL INSTRUMENTATION 2010103804 윤지선 2014.06.03
Electromagnetic spectrum • Audio Frequency • Radio Frequency 20 – 20.000Hz Ex) 30Hz = λ 300Hz = λ • Low Frequency : 30kHz (10km) – 300kHz (1km) • Medium Frequency : 300kHz (1km) – 3MHz (100m) • High Frequency : 3MHz (100m) – 30MHz (10m) • Very High Frequency(VHF) : 30MHz (10m) – 300MHz (1m) • Ultra High Frequency(UHF) : 300MHz (1m) – 3GHz (0.1m) 2014.06.03
Electromagnetic spectrum • Microwave • Centimeter wave : 3GHz (10cm) – 30GHz (1cm) • Millimeter wave : 30GHz (1cm) – 300GHz (1mm) • Sub millimeter wave : 300GHz (1mm) – 3THz (0.1mm) • Infrared (적외선) Far Infrared (원적외선) : Intermediate Infrared : [J/S] 2014.06.03
Electromagnetic spectrum • Visible Light http://lumenistics.com/what-is-full-spectrum-lighting/ 2014.06.03
Electromagnetic spectrum • Ultra Violet (자외선) • X-ray • Gamma-ray 2014.06.03
변조와 복조 http://ing7.tistory.com/entry/Modem-MOdulation-DEModulation 2014.06.03
변조와 복조 _ 변조 http://blog.daum.net/bolee591/16155830 http://linecard.tistory.com/36 2014.06.03
변조와 복조 _ 변조 http://linecard.tistory.com/36 2014.06.03
변조와 복조 _ 복조 http://blog.daum.net/bolee591/16155830 http://linecard.tistory.com/36 2014.06.03
변조와 복조 _ 복조 http://linecard.tistory.com/36 2014.06.03
The end 2014.06.03