You need JavaScript to view this

Monitoring of the state of the paper machine circulation water with a wide-band impedance measurement; Paperikoneen kiertoveden tilan seuranta laajakaistaisella impedanssimittauksella - MPKT 02

Abstract

A new measurement method for monitoring the chemical state of the circulation water in the paper machine is proposed and studied. In the method, the electrical properties - conductivity and permittivity - of the water are measured in a wide frequency band: 20 Hz - 10 mhz. Large-molecule organic compounds in the water are expected cause characteristic changes in the dielectric properties of the water. Continuous monitoring of the permittivity in the wide frequency band thus reveals their presence. Various electronic measurement setups for the measurement are constructed and studied by using test samples. If the method turns out to be promising, a prototype device will be made. (orig.)
Authors:
Varpula, T [1] 
  1. VTT Automation, Espoo (Finland). Measurement Technology
Publication Date:
Dec 31, 1998
Product Type:
Technical Report
Report Number:
NEI-FI-362
Reference Number:
SCA: 320303; 320305; PA: FI-99:003385; SN: 99002156290
Resource Relation:
Other Information: PBD: 1998; Related Information: Is Part Of CACTUS technology programme. Yearbook 1998; Alakangas, E. [ed.]; PB: 300 p.
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; PAPER INDUSTRY; PAPER; PRODUCTION; WATER; IMPEDANCE; MEASURING METHODS; CHEMICAL STATE; CIRCULATING SYSTEMS; MONITORING; ELECTRICAL PROPERTIES; BENCH-SCALE EXPERIMENTS
OSTI ID:
703387
Research Organizations:
VTT Energy, Jyvaeskylae (Finland)
Country of Origin:
Finland
Language:
Finnish
Other Identifying Numbers:
Other: ON: DE99771568; TRN: FI9903385
Availability:
OSTI as DE99771568
Submitting Site:
FI
Size:
pp. 125-129
Announcement Date:

Citation Formats

Varpula, T. Monitoring of the state of the paper machine circulation water with a wide-band impedance measurement; Paperikoneen kiertoveden tilan seuranta laajakaistaisella impedanssimittauksella - MPKT 02. Finland: N. p., 1998. Web.
Varpula, T. Monitoring of the state of the paper machine circulation water with a wide-band impedance measurement; Paperikoneen kiertoveden tilan seuranta laajakaistaisella impedanssimittauksella - MPKT 02. Finland.
Varpula, T. 1998. "Monitoring of the state of the paper machine circulation water with a wide-band impedance measurement; Paperikoneen kiertoveden tilan seuranta laajakaistaisella impedanssimittauksella - MPKT 02." Finland.
@misc{etde_703387,
title = {Monitoring of the state of the paper machine circulation water with a wide-band impedance measurement; Paperikoneen kiertoveden tilan seuranta laajakaistaisella impedanssimittauksella - MPKT 02}
author = {Varpula, T}
abstractNote = {A new measurement method for monitoring the chemical state of the circulation water in the paper machine is proposed and studied. In the method, the electrical properties - conductivity and permittivity - of the water are measured in a wide frequency band: 20 Hz - 10 mhz. Large-molecule organic compounds in the water are expected cause characteristic changes in the dielectric properties of the water. Continuous monitoring of the permittivity in the wide frequency band thus reveals their presence. Various electronic measurement setups for the measurement are constructed and studied by using test samples. If the method turns out to be promising, a prototype device will be made. (orig.)}
place = {Finland}
year = {1998}
month = {Dec}
}