Patent · US Expired

Moisture-detection device

US6981405B2 · kind B2 · utility

2Cited by
5References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 7, 2002
Grant dateJan 3, 2006
Priority date
Expiry dateSep 13, 2022

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60S1/0877
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A device for determining moisture has an LC-oscillating circuit as a transducer and an oscillator for exciting the oscillating circuit. Further, the device for determining moisture has a tuning device for frequency-wise tuning the oscillator and a measuring and evaluation circuit to determine an attenuation condition of the oscillator and to provide a signal that is proportional to a degree of moisture at the transducer. The transducer and the oscillator are coupled in a contact-free manner.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.