Pyroelectric coefficient under open circuit condition and its enhacement through product property

This paper presents experimental results showing an increase in the pyroelectric coefficient of PZT ceramic when bonded between two layers of stainless steel to form a laminated composite structure. This enhancement is shown to be dependent on the ratio of thickness of PZT to steel, with small ratios showing the greatest enhancement. Experimental results are also presented showing a difference in the pyroelectric coefficient of these composites when measured under the short or open circuit conditions.