變頻功率計(jì)接上輸入電源線和帶夾輸出導(dǎo)線，紅插頭對(duì)紅插座，黑插頭對(duì)黑插座；紅線或白線對(duì)應(yīng)正極，黑線對(duì)應(yīng)負(fù)極，切莫混淆；將光探測器的輸出插到儀器的光輸入。根據(jù)測試對(duì)象的工作波長，通過兩位開關(guān)進(jìn)行選擇。3.根