Transducer components are the core of electrochemical sensors for measurements of gases and liquids. At Fraunhofer EMFT, electrochemical cells are available for amperometric measurements.
Transducer components are the core of electrochemical sensors for measurements of gases and liquids. At Fraunhofer EMFT, electrochemical cells are available for amperometric measurements.
This type of transducer consists of a structure of three electrodes and can be deployed for amperometric measurements and cyclic voltammetry. To make the current flow, at least two electrodes are needed: a working electrode (anode) and a counter electrode (cathode). This enables measurement of the current and the cell tension, but not the electrode potential of the working electrode, determining the electrode reaction. For this measurement a third electrode is necessary; a reference electrode which is operated without current.
Electrode structure (WE, CE, RE) | circular |
Diameter of the working electrode (WE) | 10 – 3000 µm |
Chip surface area | 4,5 x 4,5 mm |
Material | Gold electrodes on glass |
Reference electrode (RE) | Possibility to print Ag/AgCl |
Passivation | Polyimid at need |
Integrated temperature sensor (WE 500µm) | Resistance (RT upto 150°C) |
Integrated heater | upto 150°C |
Coating | At customer request |
Packaging |