Application of the month: Measuring temperature via SenzaNET
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Measuring temperature ? Sounds probably the simplest thing – right ?
Check behind the scenes, and you will see that there are differences between the solutions being offered.
When temperature needs to be measured inside a processing chamber at high temperatures, several options exist:
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Most common sensor used is the PT100, where platinum’s change of electrical resistance with temperature is being followed.
SenzaBlock comes with a PT100 interface, where resistance is measured, compared to built-in reference values and converted into temperature.
The user just plugs in a PT100 sensor and can collect his data centrally over the SenzaGate. Temperature time-series will be most easily recorded by the SenzaWMS PC application and can later be viewed, post-processed and exported via web-interface.
With PT100, temperatures ranging from -200 °C to 850 °C can be measured with ~1% accuracy
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For special situations, e.g. higher accuracy required in a defined temperature range, other materials than platinum are used.
For wider temperature ranges, so-called thermo electric sensors are available. They work down to -270 °C and up to almost 1800 °C. Sensor-specific analog circuitry is required in this case for accurate measurement, which then is connected to SenzaBlock through the on-board analog interface. SenzaWMS additionally offers convenient calibration and linearization options.
Have a temperature measurement challenge ?
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