The patent pending technology for differential pyroelectric detectors was developed by the LASER COMPONENTS Pyro Group. Since the signals of both chip sides are amplified separately, the detector signal is doubled, while the background noise only increases by a factor of 1.4. This leads to significant improvements in the sensibility of IR analysis devices. The separate signal outputs of the 4-pin LD2100 detector render it insensitive to interference currents. On the other hand, many existing designs are still based on the classic 3-pin design.
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