The ProboStat™

The ProboStat™The ProboStat™ is a cell for measurements of electrical properties, transport parameters, and kinetics of materials, solid/gas interfaces and electrodes under controlled atmospheres at high temperatures up to 1600ºC. The versatile construction and broad range of accessories of the system are based on years of development and experience in the Kofstad/Norby group at the University of Oslo. A ProboStat™ system offers a cost-effective alternative to developing and building your own cell for studies, characterization and testing of inorganic materials, electroceramics, fuel cell components, membrane materials, etc.

Brief description
The sample under test rests on a ca. 50 cm long support tube of alumina, inside a closed outer tube of alumina or silica. The sample can be contacted with 2, 3 or 4 electrodes of e.g. platinum, using disk, van der Pauw, or bar geometries. A spring-loaded alumina assembly holds the sample and electrodes in place. 16 electrical feedthroughs allow use of 4 shielded electrode leads, surface guard, and up to three thermocouples (e.g. for Seebeck coefficient measurements). Electrical connections are made via coax cables suitable for standard impedance spectrometer connectors, and standard thermocouple compensation cables. Gases can be fed in single or dual chamber modes directly onto or from electrodes, allowing measurements under controlled atmospheres, transport number measurements in gradients, and testing of fuel cell, pump, and sensor components. Gas supply is via Swagelok quick-connects.

Materials properties measured and applicable methods

pdf Download Brochure: The ProboStat™



This small-footprint gas mixer is suitable for low-flow laboratory use such as materials- and button fuel cell research, where large dynamic dilution range, accuracy, and automated step-programs are important. The accompanying software is simple, and guides the user step-by-step through the definition of mixtures and describes the mixture in all typical units.

* Dynamic mixing of two input gases and one input fluid (all upon request) 
* Fully continuous, truly dynamic range, allowing accurate gas dilutions all the way from 2·10-5 (20 ppm) to 100%.
* Continuous range of water vapour levels from bottle dry gas to pure steam.
* The mixer is not limited only to H2O as the evaporating fluid.
* The operating cycle is perpetual; gas mixture production can run while more water (or other fluid) is being added.
* Flow of the gases are typically < 100 mln/min, but can be adjusted per request.
* Competitive pricing.

pdf Download Brochure: HumiStat