EM Kirlilik Ölçümü İçin Geniş Bant ve Frekans-Seçici Ölçümlerin Karşılaştırılması

Yıl 2017, Cilt: 7 Sayı: 14, 5 - 12, 31.12.2017

Cafer Bahadır Tektaş , Muhammed Hasan Aslan

Öz

Baz istasyonları, TV vericileri, kablosuz cihazlar gibi aktif antenlerin
sayısı arttıkça insanlar elektromanyetik maruziyetten ve sağlıklarından giderek
daha fazla endişe etmeye başlamıştır. Bunun bir sonucu olarak, maruz kalınan elektromanyetik
maruziyet seviyesinin ölçülmesi gerekli hale gelmiştir. EM kirliliğinin maruziyet düzeyini ölçmek
için kullanılan, geniş bant ve frekans seçici diğer adıyla dar bant olmak üzere
iki yaygın ölçüm yöntemi vardır. Bu
çalışmada, frekans seçici ölçümleri gerçekleştirebilen ve sonucunda güçleri
toplayıp toplam maruz kalma seviyesini hesaplayabilen bir yazılım çözümü
geliştirdik. Daha sonra, bir elektromanyetik alan probu ile elde edilen geniş
bant ölçüm sonuçları ile bir spektrum analizörü ve bir mini-bikonik anten
kullanarak gerçekleştirilen frekans seçici ölçüm yöntemi ile elden edilen
sonuçları arasında iyi bir karşılaştırma yapılmıştır.

Anahtar Kelimeler

Geniş bant, Elektromanyetik, Frekans-Seçici, Ölçüm, Kirlilik

Comparison Between Broadband and Frequency-Selective Measurements for EM Pollution Survey

Öz

As the number of radiators
such as base stations, TV transmitters, wireless devices increases, people are
getting more and more concerned about the exposure and their health. As a
result, it has become necessary to measure the level of electromagnetic
exposure that is being exposed. There are two common methods to measure the
exposure level of EM pollution; broadband and frequency selective, alias
narrow-band, measurement methods. In this work, we developed a software
solution that can perform frequency-selective measurements and finally can
collect the powers and calculate the total exposure level. Thereafter, we made
a good comparison between broadband measurement results obtained with a field
probe and frequency-selective ones which are obtained by using a spectrum
analyzer and a mini-biconical antenna.

Anahtar Kelimeler

Broadband, Electromagnetic, Frequency-Selective, Measurement, Pollution

Kaynakça

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