CN105203212A - Built-in dynamic black body calibration source - Google Patents
Built-in dynamic black body calibration source Download PDFInfo
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- CN105203212A CN105203212A CN201510586788.3A CN201510586788A CN105203212A CN 105203212 A CN105203212 A CN 105203212A CN 201510586788 A CN201510586788 A CN 201510586788A CN 105203212 A CN105203212 A CN 105203212A
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Abstract
The invention discloses a built-in dynamic black body calibration source. The calibration source comprises a shell, a thermal imager camera lens arranged on the side of the shell, a working component and a controller, wherein the working component and the controller are arranged inside the shell and used in cooperation with the thermal imager camera lens. The calibration source is characterized by further comprising a built-in standard black body and a black body movement mechanism installed between the thermal imager camera lens and the working component, the built-in standard black body is installed on the black body movement mechanism, the built-in standard black body is driven to rotate around a rotating shaft of the black body movement mechanism, the swinging arc of the built-in standard black body passes through an infrared focal plane window of the working component, and the controller is in circuit connection with the working component and the black body movement mechanism. An infrared imaging system can be embedded, in this way, real-time and dynamic uneven calibration is achieved for an infrared focal plane array, and the image quality of the infrared thermal imaging system is rapidly and effectively improved.
Description
Technical field
The present invention relates to a kind of built-in dynamic black matrix calibration source.
Background technology
Along with the development of modern infrared electro technology, the application of infra-red thermal imaging system in military-civil field is increasingly extensive.The core component of thermal imaging system is infrared focal plane detector (IRFPA), and due to the limitation of infrared focal plane detector manufacturing process, the responsiveness of each probe unit has inconsistency, also referred to as fixed pattern noise (FPN).When variation of ambient temperature when IRFPA works long hours or work is larger, FPN can produce new drift change, reduces temperature resolution and the visuality of infra-red thermal imaging system, becomes the principal element of restriction infrared focal plane device application.In order to ensure the temperature resolution of thermal imager system under complicated environmental condition and image quality, the Nonuniformity Correction (NUC) of IRFPA becomes the hot spot technology that Now Domestic is studied outward.
The asymmetric correction method of thermal infrared imager comparatively ripe at present has two kinds: 1. use standard blackbody before product export, carry out static shift correction to thermal imaging system.2. fast door guard plate is used to carry out single point correction after product export.These two kinds of NUC calibrating modes are applicable to the application scenarios that temperature variation is less, stream time is shorter.
Summary of the invention
The present invention proposes a kind of built-in dynamic black matrix calibration source, replaceable fast door guard plate originally, can produce multi-point temp in real time according to scene, is particularly suitable for the scene adaptive dynamic calibration of thermal imaging system, meet the user demand of thermal imaging system completely, there is good market application foreground.
The present invention realizes particular by following technical scheme:
A kind of built-in dynamic black matrix calibration source, comprise shell, be arranged on the thermal imaging system camera lens of shell sidepiece, be arranged on enclosure and with thermal imaging system camera lens with the use of work components and parts and controller, also comprise built-in calibration black matrix and black matrix motion, described black matrix motion is installed on the position between described thermal imaging system camera lens and work components and parts, described black matrix motion installs built-in calibration black matrix, and drive built-in calibration black matrix to rotate around the rotating shaft of black matrix motion, the camber line that described built-in calibration black matrix swings is through the infrared focus plane window of work components and parts, described controller circuitry connection work components and parts and black matrix motion.
Further, described work components and parts front end outer wall fixed support, fixed electrical machinery on described support, the output shaft end of described motor fixes swing arm, described swing arm fixedly mounts built-in calibration black matrix, the infrared focus plane window of work components and parts is on the camber line of built-in calibration black matrix swing.
Further, described built-in calibration black matrix at least comprises the blackbody radiation face and miniature heat storage that arrange before and after body and body interior, temperature sensor and thermoelectric refrigerating unit is provided with between described blackbody radiation face and miniature heat storage, described miniature heat storage, temperature sensor and thermoelectric refrigerating unit are respectively by circuit connection control device, and described controller circuitry connects motor.
Further, described controller connects temperature indicator.
Further, described body sidewall is provided with thermovent.
The beneficial effect that the present invention produces is: built-in dynamic black matrix calibration source provided by the invention, infrared imaging system can be embedded in, realize, to infrared focal plane array dynamic Nonuniformity Correction in real time, improving the picture quality of infra-red thermal imaging system quickly and effectively.Compact of the present invention, sealing structure; Temperature variation is rapid, stable temperature control, and homogeneity is good, and the scene adaptive being particularly suitable for thermal imaging system corrects.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation that the built-in calibration black matrix of an embodiment of the present invention is installed.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As Fig. 1, a kind of built-in dynamic black matrix calibration source shown in Fig. 2, comprise shell 1, be arranged on the thermal imaging system camera lens 2 of shell sidepiece, be arranged on enclosure and with thermal imaging system camera lens 2 with the use of work components and parts 3 and controller, also comprise built-in calibration black matrix 5 and black matrix motion 4, described black matrix motion 4 is installed on the position between described thermal imaging system camera lens 2 and work components and parts 3, described black matrix motion 4 installs built-in calibration black matrix 5, and drive built-in calibration black matrix 5 to rotate around the rotating shaft of black matrix motion 4, the camber line that described built-in calibration black matrix 5 swings is through the infrared focus plane window of work components and parts 3, described controller circuitry connection work components and parts and black matrix motion.In the present embodiment, black matrix motion 4 mounting means in the following way: work components and parts 3 front end outer wall fixed support 41, fixed electrical machinery 42 on support 41, the output shaft end of motor 42 fixes swing arm 43, swing arm 43 fixedly mounts built-in calibration black matrix 5, the infrared focus plane window of work components and parts 3 is on the camber line of built-in calibration black matrix 5 swing.
In the present embodiment, built-in calibration black matrix at least comprises the blackbody radiation face and miniature heat storage that arrange before and after body and body interior, temperature sensor and thermoelectric refrigerating unit is provided with between described blackbody radiation face and miniature heat storage, described miniature heat storage, temperature sensor and thermoelectric refrigerating unit are respectively by circuit connection control device, and described controller circuitry connects motor.Controller connects temperature indicator, and temperature sensor senses the temperature transmitting black matrix are to controller, and then display, sends instruction simultaneously as required and gives thermoelectric refrigerating unit and carry out heating and cooling operation, carry out intensifications lower the temperature to built-in calibration black matrix.In certain this programme, controller is installed in body, can also arrange communication interface, is controlled, and arranged by special software and show black matrix target temperature and real-time temperature values by PC end.
Obviously, body sidewall is provided with thermovent, and the body being preferably in miniature heat storage place is provided with louvre, carries out miniature heat storage heat extraction more fast.
The present invention can be built in infrared thermoviewer, realize infrared focal plane array dynamic Nonuniformity Correction in real time, under the temperature conditions of the built-in calibration black matrix of monitoring display on the one hand, preset value temperature is set, the temperature being realized built-in calibration black matrix by controller operation is regulated, reach the object that scene adaptive corrects, improve the picture quality of infra-red thermal imaging system quickly and effectively.
In the present invention, built-in calibration black matrix is integrated in imager inside, replaceable fast door guard plate originally, the impracticabilities such as the wearing and tearing avoiding existing outside installation calibrating source easily to produce.This device is embedded in infrared imaging system, realizes, to infrared focal plane array dynamic Nonuniformity Correction in real time, improving the picture quality of infra-red thermal imaging system quickly and effectively.Compact of the present invention, sealing structure; Temperature variation is rapid, stable temperature control, and homogeneity is good, and the scene adaptive being particularly suitable for thermal imaging system corrects.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a built-in dynamic black matrix calibration source, comprise shell, be arranged on the thermal imaging system camera lens of shell sidepiece, be arranged on enclosure and with thermal imaging system camera lens with the use of work components and parts and controller, it is characterized in that, also comprise built-in calibration black matrix and black matrix motion, described black matrix motion is installed on the position between described thermal imaging system camera lens and work components and parts, described black matrix motion installs built-in calibration black matrix, and drive built-in calibration black matrix to rotate around the rotating shaft of black matrix motion, the camber line that described built-in calibration black matrix swings is through the infrared focus plane window of work components and parts, described controller circuitry connection work components and parts and black matrix motion.
2. built-in dynamic black matrix calibration source as claimed in claim 1, it is characterized in that, described work components and parts front end outer wall fixed support, fixed electrical machinery on described support, the output shaft end of described motor fixes swing arm, described swing arm fixedly mounts built-in calibration black matrix, the infrared focus plane window of work components and parts is on the camber line of built-in calibration black matrix swing.
3. built-in dynamic black matrix calibration source as claimed in claim 1, it is characterized in that, described built-in calibration black matrix at least comprises the blackbody radiation face and miniature heat storage that arrange before and after body and body interior, temperature sensor and thermoelectric refrigerating unit is provided with between described blackbody radiation face and miniature heat storage, described miniature heat storage, temperature sensor and thermoelectric refrigerating unit are respectively by circuit connection control device, and described controller circuitry connects motor.
4. built-in dynamic black matrix calibration source as claimed in claim 3, is characterized in that, described controller connects temperature indicator.
5. built-in dynamic black matrix calibration source as claimed in claim 3, it is characterized in that, described body sidewall is provided with thermovent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510586788.3A CN105203212A (en) | 2015-09-15 | 2015-09-15 | Built-in dynamic black body calibration source |
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| CN201510586788.3A CN105203212A (en) | 2015-09-15 | 2015-09-15 | Built-in dynamic black body calibration source |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111579090A (en) * | 2020-05-28 | 2020-08-25 | 西安泰豪红外科技有限公司 | Miniaturized high-precision infrared area array temperature measurement thermal imager |
| CN111595466A (en) * | 2020-05-15 | 2020-08-28 | 武汉华中数控股份有限公司 | Integrated infrared imager and black body all-in-one machine |
| CN112513595A (en) * | 2020-02-14 | 2021-03-16 | 深圳市大疆创新科技有限公司 | Movable device, control terminal, method for measuring temperature by using thermal infrared imager in movable device and movable system |
| CN113008381A (en) * | 2021-03-15 | 2021-06-22 | 东莞先导先进科技有限公司 | Thermal infrared imager device and real-time temperature calibration method thereof |
| CN115560860A (en) * | 2022-09-26 | 2023-01-03 | 深兰自动驾驶研究院(山东)有限公司 | A medical infrared thermal imager |
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| CN101470026A (en) * | 2007-12-24 | 2009-07-01 | 南京理工大学 | Ununiformity emendation real-time calibration apparatus for staring type thermal imaging system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112513595A (en) * | 2020-02-14 | 2021-03-16 | 深圳市大疆创新科技有限公司 | Movable device, control terminal, method for measuring temperature by using thermal infrared imager in movable device and movable system |
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| WO2021159529A1 (en) * | 2020-02-14 | 2021-08-19 | 深圳市大疆创新科技有限公司 | Mobile device, control terminal, method for measuring temperature by using infrared thermal imager in mobile device, and mobile system |
| CN111595466A (en) * | 2020-05-15 | 2020-08-28 | 武汉华中数控股份有限公司 | Integrated infrared imager and black body all-in-one machine |
| CN111579090A (en) * | 2020-05-28 | 2020-08-25 | 西安泰豪红外科技有限公司 | Miniaturized high-precision infrared area array temperature measurement thermal imager |
| CN111579090B (en) * | 2020-05-28 | 2025-10-28 | 西安中科立德红外科技有限公司 | A miniaturized high-precision infrared array temperature measurement thermal imager |
| CN113008381A (en) * | 2021-03-15 | 2021-06-22 | 东莞先导先进科技有限公司 | Thermal infrared imager device and real-time temperature calibration method thereof |
| CN115560860A (en) * | 2022-09-26 | 2023-01-03 | 深兰自动驾驶研究院(山东)有限公司 | A medical infrared thermal imager |
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Application publication date: 20151230 |