公开(公告)号：US10996107B2

公开(公告)日：2021-05-04

申请号：US16577127

申请日：2019-09-20

Applicant: University of Electronic Science and Technology of China

Inventor： Longcheng Que ,  Daogang Min ,  Kai Yang ,  Yi Zhang ,  Jian Lv ,  Yun Zhou ,  Yadong Jiang

IPC: G01J1/44 ,  G01J5/28 ,  H01L31/024 ,  H04N5/33

Abstract: The present disclosure relates to an exponential model based uncooled infrared focal plane array readout circuit, including: a first microbolometer unit and a second microbolometer unit, for obtaining a detection signal and a reference signal; a conversion unit, connected with the first and second microbolometer units, and configured for converting the detection signal and reference signal to obtain a linear detection signal and linear reference signal; a subtraction unit, connected with the conversion unit, and configured for calculating a difference between the detection signal and the reference ratio signal to obtain a difference signal; and an integration unit, connected to the subtraction unit, and configured for integrating the difference signal to obtain an electrical signal for characterizing the infrared light signal of the to-be-detected object.

公开(公告)号：US20210048340A1

公开(公告)日：2021-02-18

申请号：US16577127

申请日：2019-09-20

Applicant: University of Electronic Science and Technology of China

Inventor： Longcheng Que ,  Daogang Min ,  Kai Yang ,  Yi Zhang ,  Jian Lv ,  Yun Zhou ,  Yadong Jiang

IPC: G01J1/44 ,  H04N5/33 ,  H01L31/024 ,  G01J5/28

Abstract: The present disclosure relates to an exponential model based uncooled infrared focal plane array readout circuit, including: a first microbolometer unit and a second microbolometer unit, for obtaining a detection signal and a reference signal; a conversion unit, connected with the first and second microbolometer units, and configured for converting the detection signal and reference signal to obtain a linear detection signal and linear reference signal; a subtraction unit, connected with the conversion unit, and configured for calculating a difference between the detection signal and the reference ratio signal to obtain a difference signal; and an integration unit, connected to the subtraction unit, and configured for integrating the difference signal to obtain an electrical signal for characterizing the infrared light signal of the to-be-detected object.