Pyroelectric energy harvesting

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gagangc

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Hi everyone,

Energy harvesting from pyroelectric materials is done by providing temperature fluctuations and electric field.Frequency of electric field applied has a great effect on amount of energy harvested.But my doubt is,when making a real device to harvest energy from waste heat ,temperature fluctuations can be provided but from where will we get electric fields of required frequency??

Thanks in advance.
 

in pyroelectric sensors the internal crystalline structure is changed due to temperature,this change generates a temporary potential . i don get your idea of frequency ?
 

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