Single-blackbody responsivity testing method for infrared detector
A technology of infrared detectors and testing methods, which is applied in the direction of radiation pyrometry, instruments, measuring devices, etc., can solve the problems of reducing the test accuracy of responsivity and the output drift of infrared detectors, and achieve the goal of improving test accuracy and preventing output drift Effect
Active Publication Date: 2016-06-01
永卓防务科技有限公司
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[0003] The principle of the single black body responsivity test is: under the premise that the optical test structure meets the conditions, the ratio of the difference between the output of the detector at different black body temperatures to the difference between the temperature and the black body temperature; but the single black body is in the process of switching temperature, The output drift of the infrared detector itself will reduce the test accuracy of the responsivity; it needs to be improved
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Embodiment 1
[0012] Embodiment 1: a kind of infrared detector single blackbody responsivity test method, when testing the infrared detector output when single blackbody is different in temperature, it is characterized in that comprising the following steps: at first collecting single blackbody temperature is the reference voltage Vt1 of T1, single blackbody temperature is T1 The black body temperature is the reference voltage Vt2 of T2; then when the single black body temperature is switched to T1, the output voltage V1 at that time is detected, and when the single black body temperature is switched to T2, the output voltage V2 at that time is detected; using the reference voltage Vt1 of T1 , the reference voltage Vt2 of T2 corrects the data of the temperature to be tested, and then calculates the response rate of the test. The calculation formula is as follows:
[0013]
[0014] The blackbody temperature is set to 20°C and 35°C respectively, and the response rate tested by conventional ...
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The invention discloses a single-blackbody responsivity testing method for an infrared detector, and relates to the technology of calibration and measurement of photoelectric detectors. The method comprises the steps: firstly collecting the data of the same reference plane during the testing of the output of a detector for detecting the temperature of different blackbodies; secondly carrying out the correction of the testing data through employing the output data of the detector of the reference plane, and calculating a testing responsivity, wherein the calculation formula is shown in the description. The method effectively avoids the output drift of the body of the infrared sensor, and improves the testing precision of responsivity.
Description
technical field [0001] The invention relates to the calibration and measurement technology of a photoelectric detector, in particular to a single blackbody responsivity test method for preventing the responsivity of an infrared detector from changing with temperature. Background technique [0002] Responsivity refers to the ratio of the signal generated by the detector to the incident optical power of the wavelength at a specified wavelength. To achieve its absolute measurement, it is necessary to accurately measure the optical power of the wavelength incident on the detector and the signal generated by the detector. . [0003] The principle of the single black body responsivity test is: under the premise that the optical test structure meets the conditions, the ratio of the difference between the output of the detector at different black body temperatures to the difference between the temperature and the black body temperature; but the single black body is in the process of...
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CPCG01J5/00
Inventor 吕鹏何旭娇谈彬武张豪许勇周平
Owner 永卓防务科技有限公司