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Infrared camera calibration method

A technology of infrared thermal imager and calibration method, which is applied in the directions of instruments, scientific instruments, measuring heat, etc., to ensure the versatility, reduce the use time, and prolong the service life.

Inactive Publication Date: 2016-08-10
上海博锐特光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Second, if the core components of the infrared thermal imaging thermometer fail, it must be returned to the factory to do the temperature curve and temperature drift test again

Method used

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the utility model will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present utility model.

[0035] The technical solution adopted by the present invention for solving the problems mentioned above is, comprising:

[0036] Step 1, detector swing range correction:

[0037] Place 2 blackbodies within the imaging range (in this embodiment, five meters) in front of the online infrared thermal imaging thermometer. The distance between the two blackbodies in this embodiment is 5 meters. The temperature value data Data1 and Data2 of a blackbody. If the difference between Data2 and Data1 is not within the set range, modify the detector dynamic range until the difference between Data2 and Data1 is within t...

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Abstract

The invention relates to a thermal infrared imager correction method which comprises the following steps: detector swing range correction, shutter disc and shot temperature sensor correction, shutter disc temperature model correction, shot temperature model correction, shot and detector focal plane attenuation coefficient correction, and temperature curve fitting and dynamic adjusting thermal infrared imager dynamic range correction. The thermal infrared imager correction method is adopted to separately correct a lens cone, a shutter and a detector, the universality of all components of the thermal infrared imager can be ensured, the components invalidation problem can be ensured to be solved on the spot, the components are not required to return to a factory, great convenience can be provided to customers, and meanwhile, the accuracy of the thermal imager is improved greatly through dynamic adjustment of the thermal imager according to the temperature.

Description

technical field [0001] The invention relates to a method for calibrating equipment, in particular to a method for calibrating an infrared thermal imager. Background technique [0002] Infrared thermal imaging camera was developed in the late 1970s and early 1980s driven by national defense applications and other strategic and tactical applications. It is an important optoelectronic device for obtaining infrared thermal radiation information of scenery. In addition to being used in traditional situational imaging, infrared focal plane detectors are also widely used in industrial automation, medical diagnosis, chemical process detection, infrared astronomy and other fields. [0003] After the infrared thermal imager is produced and assembled, it cannot be used directly. It is just a general-purpose imager, which cannot realize the required project. To realize its temperature measurement function, the swing range of the detector, sensor, lens barrel temperature, The temperatur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/10G01K15/00
Inventor 邓先武
Owner 上海博锐特光电科技有限公司
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