Self-Oscillating Measurement System for In Situ-Monitoring Moisture in Buildings

Author

Sokoll, Thorsten ; Jacob, A.F.

Author_Institution

Sequid GmbH, Bremen, Germany

Volume

63

Issue

12

fYear

2014

fDate

Dec. 2014

Firstpage

2911

Lastpage

2918

Abstract

A compact and inexpensive microwave system for in situ monitoring the moisture content in concrete structures is presented. It consists of an active microwave sensor and a frequency meter. Both components and their integration are briefly described. To cover the vast moisture range of interest, the system is calibrated against the wet basis moisture content and the ambient (equilibrium) relative humidity. The system´s suitability for the given task is evaluated under realistic conditions.

Keywords

buildings (structures); computerised monitoring; concrete; humidity; microwave detectors; moisture; structural engineering; buildings; concrete structures; frequency meter; in situ-monitoring; microwave sensor; microwave system; moisture content; moisture monitoring; relative humidity; self-oscillating measurement system; Concrete; Frequency measurement; Microwave sensors; Moisture; Oscillators; Temperature measurement; Concrete; frequency meter; in situ; microwave; moisture; self-oscillation; self-oscillation.;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2014.2318931

Filename

6814286