Measurement concept for broadband impedance spectroscopy analysers for process applications
Most commercial measurement devices in impedance spectroscopy are impedance analyzers that utilize the ‘frequency sweep’ concept for sensing the properties of interest across a wide frequency range. These are ’high-end’ measurement systems, highly versatile and precise; they employ measurement principles that guarantees enormous data quality. However, this very principle does not allow the development of a small lightweight system (which is a prerequisite for many non-laboratory applications). Moreover, the requirement of highly trained personal (which arises due to the high flexibility of analyzers) and the ultimate parameter-cost of the system-often limits the acceptance of such devices.