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Now let's do the measurement. It is best to start, since the tea is already cooling down. There are two sensors - one has quite a big volume on the tip, and another one has only two thin wires connected together . One important note at this point - the picture depicts an amateur made sensor. In reality, the two tips should not be soldered together, but rather pressed. This is because the third added material changes the properties and only two original materials should be connected together for highest precision.

But for this example, this is sufficient - we can see very nicely the difference between the sensor with the larger and smaller volume of the tip. The small tip volume will increase the bandwidth and reduce the reaction time of the sensor. Let's see how this works.

 

Let's put both sensors in the tea together and observe the results. We have already selected both channels in the channel setup so and just go to recorder.

 

In the recorder, we should select both channels while using the same axis for both channels (single value axis). Then we can change the values of y scaling to fit the measurement range.

The blue line is the thin sensor while the green line is the thick one. The reaction of two the sensors differs quite a bit when put in the tea. The temperature rises on the thin (blue) one almost instantaneously, while the green one takes a few seconds until the correct temperature is reached. On the other hand, the thin (blue) sensor is more sensitive to any ambient changes.

 

The temperature measurement is a slow process, and here we can use the sample rate divider. If there is a high speed measurement, combined with low speed temperature measurements, it is very useful to use the sample rate divider to reduce the amount of disk space used for storing. This is only important for measurements with DAQN-THERM, since the data from the PAD modules are asynchronous channels, and already stored with the acquisition rate.