发明名称 TRANSMISSION TYPE SMOKE DETECTOR
摘要 PURPOSE:To readily perform inspection including quantitative calibration of sensitivity by arbitrarily changing the transmission factor of a liquid crystal filter interposed between a light source and a photo detector.
申请公布号 JPS53110884(A) 申请公布日期 1978.09.27
申请号 JP19770026403 申请日期 1977.03.09
申请人 OMRON TATEISI ELECTRONICS CO 发明人 MURAI KIYOMI;KUBOO KAZUHIKO
分类号 G01N21/59;G01N21/53;G08B17/10;G08B17/103 主分类号 G01N21/59
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