Response time of the POS

The response time of the Polarographic oxygen sensor is assessed in the Stirrer test that is part of a full Sensor test. A quantitative interpretation of the stirrer test will yield the time constant of the sensor. Such a quantitative calculation is indeed necessary for kinetic work. However, to access the suitability of a sensor for standard steady state work each user will soon gain the necessary experience to judge the outcome of a stirrer test. Beginners can have a look at the example sensor test available for download here.

For how to improve the response time of a POS, see Slow responding sensor.

The response time of the sensor is just one of several factor determining the time resolution of an experiment.