Sensors using linear arrays of pyroelectric detectors are capable of fulfilling a number of infrared sensing roles in which the detector signal bandwidth is limited to a few tens of Hertz. In these circumstances they can have an NETD of 0.25K while maintaining low cost, low power consumption, and operation at ambient temperature. An experimental imager has been designed and built to evaluate linear pyroelectric arrays, its performance has been analysed, and it has been tested in the field for a number of applications.
P. A. Manning,
D. E. Burgess,
"A Linear Pyroelectric Array IR Sensor", Proc. SPIE 0590, Infrared Technology and Applications, (1 May 1986); doi: 10.1117/12.951959; https://doi.org/10.1117/12.951959