Moisture detecting devices such as for diapers and diapers...

Details Moisture detecting devices such as for diapers and diapers... Moisture detecting devices such as for diapers and diapers...

G - Physics

08

B

G08B 21/00 (2006.01) A61F 13/42 (2006.01)

Patent

CA 2288646

A pair of spaced electrodes (114) within an area subject to wetness couple non- conductively with a sensor (124) protected from wetness, and an alarm sounds in response to moisture decreasing the resistance between the electrodes (114). For example the electrodes (114) project into the absorbent material of a diaper and extend along the inside of the diaper sheath (110) opposite a pouch on the outside of the sheath (110). The pouch contains a sensor (124) capacitively coupled to the electrodes (114).

Une paire d'électrodes, disposées à distance l'une de l'autre dans une zone pouvant être mouillée, sont couplées de manière non conductrice à un capteur protégé de l'humidité, et une alarme sonne en réponse à l'humidité qui diminue la résistance entre les électrodes. Par exemple, les électrodes se projettent dans la matière absorbante d'une couche et se prolongent à l'intérieur de l'enveloppe de la couche se trouvant face à une petite poche placée à l'extérieur de l'enveloppe. La petite poche contient un capteur couplé, de manière capacitive, aux électrodes.

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