Infrared thermal imager and method for detecting infrared objective image by using same
A technology of infrared thermal imager and infrared detector, which is applied in the field of infrared thermal imager, can solve the problems of uniform distribution of radiation on the target surface of the detector, great influence on the correction effect, poor correction effect, etc., to achieve real-time and automatic Adaptability, improved detection performance, and high reliability
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[0046] Example 1: It is an embodiment of an infrared camera product. As attached figure 1 , 2 , 3, 4, it has an infrared optical system 100, an imaging circuit assembly 300, and a drive circuit 315 and a monitor 320; the infrared optical system 100 includes a zoom objective lens 101, which is installed in sequence after the zoom objective lens 101 There are: a refrigerator projection screen 102, a combined light mirror 103 and an infrared detector 104; the imaging circuit assembly 300 includes an analog signal processor 304 and a digital signal processing assembly 300.1; the digital signal processing assembly 300.1 includes sequentially connected The pre-processor 307, the parallel digital signal processing unit 313, and the post-processor 319; the output end of the infrared detector 104 is connected to the analog signal processor 304; the input end of the driving circuit 315 is connected to the parallel digital signal processing unit 313 The output end is connected with the c...
Example Embodiment
[0057] Example 2 : It is the method of detecting infrared object image with the infrared thermal imager of the present invention, such as figure 1 , 2 As shown in, 3 and 4, the infrared thermal imager includes an infrared optical system 100, an imaging circuit assembly 300, a drive circuit 315 and a monitor 320, and the method of detecting an infrared object image includes the following steps:
[0058] A. Power-on: After power-on, after entering the normal working state, the parallel digital signal processing unit 313 works and enters the adaptive non-uniform correction mode;
[0059] B. Scene image focusing: In the infrared optical system 100, the scene image is focused on the cooler projection screen 102 to form an intermediate image M;
[0060] C. Image scanning: the scanning mirror 103.2 in the infrared optical system 100 scans the intermediate image M, respectively scanning the first thermoelectric cooler 102.1, the scene infrared image and the second thermoelectric cooler 102.2...
Example Embodiment
[0065] Example 3 : The digital information processing and imaging method of the infrared thermal imager of the present invention, such as Figure 4 As shown, the imaging circuit assembly 300 includes an analog signal processor 304 and a digital signal processing assembly 300.1; the digital signal processing assembly 300.1 includes a pre-processor 307, a parallel digital signal processing unit 313, and a post-processor 319 connected in sequence. ; The method of digital information processing and imaging includes the following steps:
[0066] a. Analog signal processing: the analog signal processor 304 amplifies the signal of the infrared detector 104 into an analog signal and converts it into a digital signal;
[0067] b. Pre-processing: the input terminal of the pre-processor (FPGA) 307 is connected to the output terminal of the analog signal processor 304, receives the digital signal after analog-to-digital conversion, and passes each frame of image sequence through the original ...
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