IPS FlatCell is an in-house development and is used to examine flat samples that are flanged on the side. Unlike other cells of this type currently available on the market, ours is equipped with a double-walled glass vessel, which means that the cell can be heated. The first customer used it to measure the impedance of coated samples as a function of temperature with plausible and reproducible results.
The cell has a robust design. The counter electrode is made of platinum-coated titanium, has a 4 mm hole for standard banana plugs, and is screwed into the plastic. Contact is established by simply inserting a banana plug.
On the front side, the sample plate is inserted between the screw connections and clamped in place with a screw. The screw passes through a brass piece that is fixed to the side screw connections. If larger plates are to be used, a U-shaped plate can also be attached at the bottom and the upper screws can be countersunk. Then a larger plate can be inserted from above. The fixing screw for the sample also has a 4 mm hole, so that a simple banana plug is sufficient for making contact here as well.
The reference electrode is inserted into the plastic plate from above, with the tip ending immediately in front of the sample plate. This means that there are no feedthroughs in the glass. Only the two glass screw connections for thermostatting are located in the outer jacket of the glass vessel.