The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 2012
Filed:
Jul. 08, 2010
Göran Gustafsson, Linnköping, SE;
Xavier Crispin, Kimstad, SE;
Magnus Berggren, Vreta Kloster, SE;
Oscar Larsson, Norrköping, SE;
Xiaodong Wang, Norrköping, SE;
Göran Gustafsson, Linnköping, SE;
Xavier Crispin, Kimstad, SE;
Magnus Berggren, Vreta Kloster, SE;
Oscar Larsson, Norrköping, SE;
Xiaodong Wang, Norrköping, SE;
Acreo AB, Kista, SE;
Abstract
A moisture sensor, for measuring moisture in a building without leaving visible scars to the building surface, is provided. The moisture sensor includes a flexible carrier carrying an antenna for receiving EM-radiation between 9 kHz and 11 MHz and a resonant circuit including a moisture reactive element. The moisture reactive element includes a hygroscopic electrolyte arranged between a first and a second electrode, wherein the electrolyte in the presence of moisture forms mobile ions and provides a complex impedance at least in response to the alternating voltage, which complex impedance varies with the moisture content of the electrolyte.