Title:
A SENSOR DEVICE FOR DETECTING THE PRESENCE OF AN ELECTRICALLY CONDUCTIVE SUBSTANCE IN A SPACE REGION, AND APPLICATIONS THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/182953
Kind Code:
A3
Abstract:
The sensor device (1) for detecting the presence of a body or substance in a spatial region (A) comprises detecting circuit means (2), including at least first and second foils or sheets (A, B) of an electrically conductive material; and control circuit means (MC) coupled with said detecting circuit means (2) and having an output (4) connected with one (B) of said foils (A, B) for applying a first electric radiofrequency signal thereto and an input (6) connected to other one (A) of said foils (A, B) for receiving a second radiofrequency signal induced in said other foil (A); said control circuit means (MC) being arranged to generate an information signal indicative of the strength of said second signal, which varies as a function of the presence of a body or a substance on or at said other foil (A).
Inventors:
VERDESIO PAOLO (IT)
Application Number:
PCT/IB2017/052220
Publication Date:
November 30, 2017
Filing Date:
April 19, 2017
Export Citation:
Assignee:
BITRON SPA (IT)
International Classes:
A47L15/44; G01F23/26; G01N27/22; H03K17/96
Domestic Patent References:
| WO1994003817A1 | 1994-02-17 | |||
| WO2010038189A1 | 2010-04-08 | |||
| WO1999010713A1 | 1999-03-04 |
Foreign References:
| US20060192679A1 | 2006-08-31 | |||
| US5311769A | 1994-05-17 | |||
| US20110259098A1 | 2011-10-27 | |||
| US20140209120A1 | 2014-07-31 | |||
| KR100727674B1 | 2007-06-13 |
Attorney, Agent or Firm:
VANZINI, Christian et al. (IT)
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