FIELD: medicine.
SUBSTANCE: invention refers to absorbent articles. The absorbent article comprises a humidity sensor containing an electrical circuit built in the absorbent article and made of an electrically active material. The material is imprinted on one or several elements of the absorbent article. The electrical circuit includes parallel or series capacitor and inductance coil. Moisture variation in the absorbent article has an effect on resonance frequency of the electric circuit. The capacitor accommodates a liquid-absorbing material or a water-soluble substance between its covers so moisture variation in the absorbent article has an effect on capacitance of the capacitor.
EFFECT: invention allows simplifying production of the article and its intended use due to improved presentation of humidity detection.
12 cl, 6 dwg
Authors
Dates
2010-05-20—Published
2005-12-12—Filed