发明名称 |
CHECKING METHOD FOR ACTION OF DEPRECIATION TYPE SMOKE DETECTOR |
摘要 |
PURPOSE:To simply check the action of smoke detector which delivers output according to depreciation of quantity of light accepted by light acceptor when smoke flows in between light projector and acceptor that are placed in opposition each other, by laying a filter of a specified transmissivity on the optical path, as possible to freely insert or remove. |
申请公布号 |
JPS52150679(A) |
申请公布日期 |
1977.12.14 |
申请号 |
JP19760068110 |
申请日期 |
1976.06.09 |
申请人 |
MATSUSHITA ELECTRIC WORKS LTD |
发明人 |
KATAZUKI KUNIHARU;KAHARA TOORU |
分类号 |
G01N21/59;G01N21/27;G08B17/10;G08B17/103 |
主分类号 |
G01N21/59 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|