发明名称 Personal dosimeter with reminder time
摘要 A device for individually checking exposure to radiation is sensitive to the radiation and produces an alarm (acoustic and/or optical) when a threshold radiation dose is reached. An included time-measuring device furthermore warns the user when a surveillance period has expired. The radiation sensitive device may use an electret while the time-measuring device uses the drop in voltage of a battery occurring at the end of the discharge of the battery.
申请公布号 US4320393(A) 申请公布日期 1982.03.16
申请号 US19790105192 申请日期 1979.12.19
申请人 ENGDAHL, JEAN 发明人 ENGDAHL, JEAN
分类号 G01T1/15;(IPC1-7):G08B21/00;G01T1/02 主分类号 G01T1/15
代理机构 代理人
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