Calibration Method of Pixel Radiation Response for Reliability Screening of Linear Array Detectors

Abstract

The present invention discloses a pixel radiation response calibration method for reliability screening of a linear array detector. In the condition of a plurality of radiations, a detection device is configured to perform multiple measurements to obtain a response amount; the radiation temperature and the environment temperature are recorded; equations set is resolved to obtain a pixel radiation linear impact factor, environment temperature linear impact factor and a constant factor; a pixel radiation response temperature characteristic formula is obtained; and finally the conformity coefficient of the formula is resolved to provide a criterion for the reliability screening of the linear array detector. The detection device comprises a radiation source, an operational amplifier, an AD converter, a controller, a serial port driver and a computer. Without environmental constraint, the pixel radiation response calibration method is simple and effective, the radiation response shifting problem of a linear array detector is solved in the process of the reliability screening, and a method for providing a criterion for the reliability screening of the linear array detector is provided through analysis of the conformity of a calibration formula.

Description

technical field [0001] The invention relates to the use of a linear array detector for a linear array infrared earth sensor. In particular, it relates to a radiation calibration method for reliability screening based on a linear array detector detection device. Background technique [0002] The infrared earth sensor is a satellite attitude optical sensor based on the principle of infrared radiation sensitivity of the earth. It can be used for the measurement of spacecraft attitude signals, the capture of the earth by the spacecraft in the initial state, and the attitude control of the spacecraft during steady-state operation. The application of the field is of great importance. The linear array infrared earth sensor is an important branch of its development, and its important component is the detector it chooses, and its accuracy and reliability largely depend on the performance parameters of the detector it chooses. [0003] In order to ensure the successful completion of...

AI Technical Summary

Problems solved by technology

The screening device of the currently selected reliability screening scheme is relatively simple, and the response obtained by the measurement is unstable. Under specific radiation conditions, it changes greatly with the measurement time, and there is no rule to follow. Accurately measure the response capability of the linear array detector, so that the screening criterion under the reliability screening scheme is too large, and it is impossible to make a good reliability judgment

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