OSA-52日照時(shí)數(shù)傳感器用于連續(xù)測(cè)量日照時(shí)數(shù),當(dāng)照射在儀器上的輻射電壓值大于某預(yù)設(shè)閾值(200mV)時(shí)進(jìn)行時(shí)間累計(jì),每日零點(diǎn)進(jìn)行清零,被采集器自動(dòng)記錄下來,作為日照時(shí)數(shù)。
OSA-52日照時(shí)數(shù)傳感器的核心器件是高精度進(jìn)口感光元件,其穩(wěn)定性好,精度高,同時(shí)在感應(yīng)元件外安裝了精密余弦修正器,有效防止了環(huán)境因素對(duì)其性能的影響。且儀器本身沒有移動(dòng)部件,耗電量低,能夠勝任野外的長期觀測(cè)使用。
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