Differential capacitance probe for process control involving aqueous dielectric fluids
Abstract
A differential capacitance probe device for process control involving aqueous dielectric fluids is disclosed. The device contains a pair of matched capacitor probes configured in parallel, one immersed in a sealed container of reference fluid, and the other immersed in the process fluid. The sealed container holding the reference fluid is also immersed in the process fluid, hence both probes are operated at the same temperature. Signal conditioning measures the difference in capacitance between the reference probe and the process probe. The resulting signal is a control error signal that can be used to control the process.
- Inventors:
- Issue Date:
- Research Org.:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1245991
- Patent Number(s):
- 6462562
- Application Number:
- 09/723,541
- Assignee:
- Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC07-94ID13223
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2000 Nov 28
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 47 OTHER INSTRUMENTATION
Citation Formats
Svoboda, John M., and Morrison, John L. Differential capacitance probe for process control involving aqueous dielectric fluids. United States: N. p., 2002.
Web.
Svoboda, John M., & Morrison, John L. Differential capacitance probe for process control involving aqueous dielectric fluids. United States.
Svoboda, John M., and Morrison, John L. Tue .
"Differential capacitance probe for process control involving aqueous dielectric fluids". United States. https://www.osti.gov/servlets/purl/1245991.
@article{osti_1245991,
title = {Differential capacitance probe for process control involving aqueous dielectric fluids},
author = {Svoboda, John M. and Morrison, John L.},
abstractNote = {A differential capacitance probe device for process control involving aqueous dielectric fluids is disclosed. The device contains a pair of matched capacitor probes configured in parallel, one immersed in a sealed container of reference fluid, and the other immersed in the process fluid. The sealed container holding the reference fluid is also immersed in the process fluid, hence both probes are operated at the same temperature. Signal conditioning measures the difference in capacitance between the reference probe and the process probe. The resulting signal is a control error signal that can be used to control the process.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 08 00:00:00 EDT 2002},
month = {Tue Oct 08 00:00:00 EDT 2002}
}
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