Infrared heat thermal imaging movement calibration device and calibration method therefor

Abstract

The invention provides an infrared heat thermal imaging movement calibration device and a method for infrared heat thermal imaging movement calibration via use of the device. The device comprises a temperature adjustable black body, an adjustable thermotank, an XY displacement motor platform and an infrared thermal imaging movement to be calibrated; the method comprises the following steps: focal plane substrate operating temperature T* is divided, temperature in the adjustable thermotank is adjusted to a starting temperature point of the divided temperature, corresponding focal plane substrate operating temperature at this time is recorded, parameters including a gain correction coefficient G and an imbalance correction coefficient O are calculated and stored, environment temperature S is divided, temperature of the black body is adjusted to different temperature points of the divided temperature from a low level to a high level, the parameter of the imbalance correction coefficient O at different environment temperature is calculated and stored, and temperature of the thermotank is changed; the parameters G and O at next focal plane substrate operating temperature and the parameter O at the different environment temperature are measured; via the calibration device and the calibration method therefor, a baffle plate can be successfully removed, system stability can be increased, a plurality of detectors can be corrected, and requirements for industrialization detection and correction can be met.

Description

technical field [0001] The invention relates to the field of uncooled infrared detectors, in particular to an infrared thermal imaging movement calibration device and a calibration method thereof. Background technique [0002] Uncooled infrared focal plane detector technology has led to a revolution in infrared technology. It has the characteristics of small size, light weight, high cost performance and low power consumption, and has been widely used in national defense and civilian fields. Affected by the process and materials, the original image output by the uncooled infrared focal plane detector will have more or less defects such as misadjustment and response non-uniformity. The non-uniformity of offset is also called fixed image noise. Fixed image noise refers to the non-uniformity of the output voltage of each pixel under the same radiation condition, which is mainly manifested as additive noise. The non-uniformity of the response refers to the non-uniformity of the ...

AI Technical Summary

Problems solved by technology

In summary, the current non-uniform correction devices and methods have the following problems: (1) the use of baffles will cause problems such as blindness of infrared detectors, increased power consumption, increased weight, and reduced stability; (2) the current Some infrared detector calibration devices can only calibrate a single detector, which is inefficient and cannot meet the needs of industrial detection and calibration

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