Error compensation apparatus of focal plane array detector in focal plane array system

摘要

An error compensating device for a focal plane thermal detector in a focal plane thermal system is disclosed. In the focal plane thermal imaging system according to the present invention, the error compensating device emits infrared rays having a temperature corresponding to a first lens unit and an emission control signal incident to a target image, and diffuses the emitted infrared rays to reflect a temperature corresponding to the emission control signal Infrared emission and diffuse reflection lens unit for generating a diffusely reflected signal having a second lens unit, m × n pixel detectors incident a signal generated from the first lens unit or infrared emission and diffuse reflection lens unit in response to a control signal Each of the m × n pixel detectors inputs a diffusely reflected signal to the focal plane thermal detector in response to a focal plane thermal detector and a control signal which detects a temperature of a signal incident from the second lens unit and outputs it as a temperature detection signal. Then, the temperature detection signal generated at each of the m × n pixel detectors is controlled to have the same level so as to exist in the focal plane thermal detector. It characterized by comprising error compensation unit for compensating the error, and it uses diffuse infrared radiation and the lens portion that, the temperature control for generating a reference temperature is simple. In addition, since the reference temperature can be generated in multiple stages, the error of the focal plane thermal detector can be compensated more accurately.