Field mill and its application for measuring the mass flow rate

Author

Gajewski, Juliusz B. ; Kacprzyk, Ryszard ; Zuk, Jan

Author_Institution

Tech. Univ. of Wroclaw, Poland

fYear

1993

fDate

2-8 Oct 1993

Firstpage

1769

Abstract

An experimental study is presented which is designed to determine whether or not a field mill can be utilized for the continuous, noncontact, and real-time monitoring of the mass flow rate of particulates pneumatically conveyed in pipes. The mass flow rate is proportional to the electric charge of solid particles generated during their flow in pipes. The continuous measurement of electric charge value is carried out on the basis of electrostatic induction and with the aid of typical electrometric preamplifiers and measuring systems. The authors discuss the proposal and trial of a measuring system in which a field mill is employed, and which causes a conversion of the DC or relatively slow varying stochastic potential into the voltage measured. Some preliminary test results are presented

Keywords

computerised instrumentation; electric charge; electrostatics; flow measurement; real-time systems; voltage measurement; application; continuous measurement; electric charge; electrometric preamplifiers; electrostatic induction; field mill; mass flow rate; measuring systems; particulates; pipes; real-time monitoring; solid particles; stochastic potential; voltage measurement; Charge measurement; Current measurement; Electric variables measurement; Electrostatic induction; Electrostatic measurements; Fluid flow measurement; Induction generators; Milling machines; Monitoring; Solids;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE

Conference_Location

Toronto, Ont.

Print_ISBN

0-7803-1462-X

Type

conf

DOI

10.1109/IAS.1993.299082

Filename

299082