NDLI: Distributed measurement system and sensors for "ice slurry" characterization

Content Provider	IEEE Xplore Digital Library
Author	Baglio, S. Caruso, V. Daniel, F. Pitrone, N. Savalli, N.
Copyright Year	2004
Description	Author affiliation: Dipt. di Ingegneria Elettrica Elettronica e del Sistemi, Catania Univ., Italy (Baglio, S.; Caruso, V.; Daniel, F.; Pitrone, N.; Savalli, N.)
Abstract	This paper deals with the problem of the characterization of sensors developed estimating the ice fraction in ice slurry fluids flowing into the pipes of industrial refrigeration apparatus based on secondary refrigerants. Such measurements must be performed in a non invasive way and the sensors must face with severe environmental conditions. Different sensors have been developed to this aim, that exploit various sensing principles. An optical sensor is based on a non electrical approach and relates the transmission of a signal to the ice density. While a capacitive sensor and a potentiometric sensor exploit the effects of ice particles concentration on the ice slurry fluid permittivity and conductivity respectively. In order to perform the characterization of the sensors developed, reproducible working conditions must be ensured by monitoring and controlling the main process parameters of the refrigeration apparatus. In fact, this paper presents a distributed monitoring system, that make use of STF513 microcontrollers and 12C bits, based on a LabView interface that allows to perform extensive experiments in a reproducible manner. In this way a reference realization of the quantity to be measured has been performed. A quick view of the sensors developed will be also given. A large ensemble of experimental results has been collected, by using the apparatus realized, that allows to qualify the performances of the sensors developed.
Sponsorship	IEEE Instrumentation and Measurement Soc
Starting Page	1907
Ending Page	1911
File Size	469155
Page Count	5
File Format	PDF
ISBN	078038248X
ISSN	10915281
DOI	10.1109/IMTC.2004.1351458
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-05-18
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sensor phenomena and characterization Sensor systems Ice Slurries Refrigeration Performance evaluation Capacitive sensors Refrigerants Optical sensors Permittivity
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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