三環(huán)輻射(磁感應(yīng)電流輻射)
主要標(biāo)準(zhǔn):
CISPR 15: Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
CISPR16-1-4: Radio disturbance and immunity measuring apparatus – Ancillary equipment – Radiated disturbances Reference.
應(yīng)用特點(diǎn):
對(duì)于照明燈具等可能產(chǎn)生低頻磁場的設(shè)備,需要采用CISPR16-1-4標(biāo)準(zhǔn)規(guī)定的環(huán)形天線系統(tǒng)測量其低頻的磁場輻射***擾。被測物(EUT)放置在三環(huán)天線的中間,三環(huán)天線將X方向、Y方向、Z方向低頻磁場分量轉(zhuǎn)換為RF信號(hào),并通過同軸開關(guān)切換三個(gè)通道,輸送到EMI***機(jī)進(jìn)行測量。測試需在屏蔽室內(nèi)進(jìn)行。測試配置布置圖:
主要測試設(shè)備:***機(jī)、三環(huán)天線、EMC測試軟件等
測試環(huán)境:屏蔽室(高度大于3.3m)