A NEW PROBE FOR MEASURING ELECTROLYTIC CONDUCTANCE

Citation
W. Olthuis et al., A NEW PROBE FOR MEASURING ELECTROLYTIC CONDUCTANCE, Sensors and actuators. B, Chemical, 13(1-3), 1993, pp. 230-233
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
ISSN journal
09254005
Volume
13
Issue
1-3
Year of publication
1993
Pages
230 - 233
Database
ISI
SICI code
0925-4005(1993)13:1-3<230:ANPFME>2.0.ZU;2-N
Abstract
A conductance cell of which the electrodes are provided with a 110 nm thick Ta2O5 insulating film is proposed and realized. The stable and v ery low impedance of the total oxide/solution interface largely reduce s interference from redox processes. Measurement results, given as an output voltage between 10 and 600 mV as a function of the specific res istance between 0.1 and 8 kOMEGA, are shown to be in agreement with th eoretically calculated results, both at the constant current and const ant voltage mode of operation.