| 发明名称 |
PHOTOELECTRIC SMOKE SENSOR |
| 摘要 |
PURPOSE:To provide a photoelectric smoke sensor, in which there is provided feedback circuit and light-source driving circuit is controlled by keeping the output of light receiving element at a constant level, whereby it is enabled to detect minute change at any time and in reliable manner. |
| 申请公布号 |
JPS5299873(A) |
申请公布日期 |
1977.08.22 |
| 申请号 |
JP19760016310 |
申请日期 |
1976.02.16 |
| 申请人 |
MATSUSHITA ELECTRIC WORKS LTD |
发明人 |
KATAZUKI KUNIHARU;MORISUE KAZUNARI;MATSUMOTO SHIGERU |
| 分类号 |
G01N21/59;G08B17/10;G08B17/103 |
主分类号 |
G01N21/59 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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