Thermopiles
Shahid Ahmed Kazmi
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Thermocouples are sometime joined in series to enhance the output, or where the source needs a larger area for temperature detection. The thermocouples may be from the different types discussed earlier, but it should be noted that the construction of one thermopile is always using the same type of thermocouples in it.As it is shown above in the diagram the output of a single thermocouple is multiplied by the N numbers of thermocouples used in the second formula. Here it is shown as a simplified view, but a thermopile may have from 20 up to a couple of hundred thermocouples in a single unit depending on the type of construction and specific application. It will also be discussed in further posts how a thermopile is used in different measuring systems like a thermal pyrometer.
(Please note that though the accuracy of the information provided here is based not only on reliable sources, but also based on personal experiences, but it is for providing a general picture and the author is not liable for any loss or damages arising from the use of this information in any instance)
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