发明授权
US5760694A Moisture detecting devices such as for diapers and diapers having such
devices
失效
湿度检测装置，例如具有这种装置的尿布和尿布
- 专利标题： Moisture detecting devices such as for diapers and diapers having such devices
- 专利标题（中）： 湿度检测装置，例如具有这种装置的尿布和尿布
-
申请号： US646453申请日： 1996-05-07
-
公开(公告)号： US5760694A公开(公告)日： 1998-06-02
- 发明人: Ofer Nissim , Donald B. Ellingham , David Janszen
- 申请人： Ofer Nissim , Donald B. Ellingham , David Janszen
- 申请人地址： CT Norwalk
- 专利权人： Knox Security Engineering Corporation
- 当前专利权人： Knox Security Engineering Corporation
- 当前专利权人地址： CT Norwalk
- 主分类号： A61F13/42
- IPC分类号： A61F13/42 ; G08B21/00
摘要：
A pair of spaced electrodes within an area subject to wetness couple non-conductively with a sensor protected from wetness, and an alarm sounds in response to moisture decreasing the resistance between the electrodes. For example the electrodes project into the absorbent material of a diaper and extend along the inside of the diaper sheath opposite a pouch on the outside of the sheath. The pouch contains a sensor capacitively coupled to the electrodes.
公开/授权文献
- US4568849A Driving circuit for piezoelectric bi-morph 公开/授权日：1986-02-04
信息查询
IPC分类:
