CN207180879U - A kind of infrared thermoviewer minimum detectable temperature difference automatic testing equipment - Google Patents
A kind of infrared thermoviewer minimum detectable temperature difference automatic testing equipment Download PDFInfo
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- CN207180879U CN207180879U CN201720793617.2U CN201720793617U CN207180879U CN 207180879 U CN207180879 U CN 207180879U CN 201720793617 U CN201720793617 U CN 201720793617U CN 207180879 U CN207180879 U CN 207180879U
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- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 239000011159 matrix material Substances 0.000 claims abstract description 22
- 230000005855 radiation Effects 0.000 claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 3
- 230000008685 targeting Effects 0.000 claims 1
- 238000007405 data analysis Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003331 infrared imaging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Abstract
The utility model discloses a kind of infrared thermoviewer minimum detectable temperature difference automatic testing equipment, described device includes being used for optical table, temperature control modules, black matrix source module, target wheel module, difference black-body resource temperature controller, parallel light tube and the computer for carrying all devices；The optical table carries every other module, the temperature control modules control environment temperature, the black matrix source module forms particular space frequency and shape infra-red radiation by target wheel module, and parallel infrared beam is formed by parallel light tube, is detected and gathers by infrared thermoviewer；The difference black-body resource temperature controller is used to control black matrix source temperature, and the precise rotating platform carries infrared thermoviewer, for accurately adjusting the image-forming range and angle of infrared thermoviewer；The computer is used to control other module automatic operatings, and carries out Data Analysis Services；Described device can avoid influence of the human factor to test.
Description
Technical field
The utility model is related to infrared thermoviewer performance parameter test technical field, more particularly, to it is a kind of it is infrared into
As instrument minimum detectable temperature difference automatic testing equipment.
Background technology
Minimum detectable temperature difference (MDTD) is an important parameter for evaluating infrared imaging system, reflects the heat spirit of system
Sensitivity characteristic, also reflects the spatial resolution of system its definition is：When the observing time observed is unrestricted, red
When square or circular target and its location of certain size can be told on outer imaging system display screen just, target with
The temperature difference between background is referred to as the minimum detectable temperature difference of corresponding target size.
International mainstream MDTD measurements at present are still used by professional by eye-observation method (subjective measurement method), should
Although method practicality is stronger, by observer itself relative influence, cause the uncertain larger of measurement result, reliability
Repeatability is not high.With the development of computer technology, the country expands in the nineties in last century to MDTD objective measurement methods grinds
Study carefully, be mainly based upon neural network algorithm and feature extraction is carried out simultaneously to infrared image caused by infrared thermoviewer by computer
Identification, but this method still needs to establish and carries out subsequent treatment on the basis of subjective measurement methods and resultses to image, thus still by
Restricted to the influence manually brought.
Utility model content
In order to solve the problems, such as that minimum detectable temperature difference measurement is larger by subjective impact existing for background technology, this practicality is new
Type provides a kind of infrared thermoviewer minimum detectable temperature difference automatic testing equipment, and methods described device need not be manually to infrared
Imager picture quality is assessed, and can be tested automatically, ensure that the objective and accurate property of test result.
A kind of infrared thermoviewer minimum detectable temperature difference automatic testing equipment, described device include:
Optical table, the optical table horizontal stable is without friction, for carrying all devices；
Temperature control modules, the temperature control modules are used to control environment temperature during test；
Black matrix source module, the black matrix source module is made up of difference black-body resource, for sending infra-red radiation；
Target wheel module, the circular hole target of different space frequency is provided with the target wheel module, is revolved by target wheel
Turn the circular hole target using different space frequency；For making black matrix source radiation produce the required specified shape of test by circular hole target
The infra-red radiation target of shape and frequency；
Difference black-body resource temperature controller, the difference black-body resource temperature controller are used to set black matrix source temperature to control
Infra-red radiation size processed；
Parallel light tube, the parallel light tube are used to infra-red radiation caused by black matrix source module being changed into collimated light beam for red
Outer imager collection；
Computer, the computer be used for difference black-body resource temperature controller, target wheel module and it is to be measured it is infrared into
As instrument enters row data communication, and then circular hole target spatial frequency and black matrix source temperature are set and gather infrared thermoviewer picture number
According to；The computer is used to handle infrared thermoviewer view data, obtains minimum detectable temperature difference test result.
Further, described device includes precise rotating platform, the precise rotating platform be used to accurately adjusting infrared thermoviewer into
Image distance walk-off angle degree, so that infrared thermoviewer accurately collects the infra-red radiation of parallel light tube output；The precise rotating platform is by counting
Calculation machine controls；
Further, the temperature control modules are the screened room that may be temperature controlled, other moulds of described device
Block is placed in the screened room；
Further, specific circular hole target is placed between difference black-body resource and parallel light tube in the target wheel module, is made
The infra-red radiation of difference black-body resource enters parallel light tube after passing through circular hole target, and the particular target wheel controls true according to computer
The circular hole target of fixed particular space frequency；
Further, described device is to circular hole targets in addition to it need to be marked with and computer processing data module makes corresponding modification,
It can be used in the measurement experiment of noise equivalent temperature difference (NETD), minimum resolvable temperature difference (MRTD) and transmission function (MFT).
The beneficial effects of the utility model are：The technical solution of the utility model, it is minimum to give a kind of infrared thermoviewer
Detectable temperature difference automatic testing equipment, described device automatic data collection infrared thermoviewer view data and can be counted in overall process is measured
Minimum detectable temperature difference is calculated, improves operating efficiency；Manually infrared thermoviewer picture quality need not be assessed, ensure that most
The accuracy and objectivity of small detectable temperature difference measurement；Present apparatus versatility is high simultaneously, required device in addition to circular hole target,
It can be used in NETD, MRTD and MFT measurement of correlation experiment.
Brief description of the drawings
By reference to the following drawings, illustrative embodiments of the present utility model can be more fully understood by：
Fig. 1 is a kind of infrared thermoviewer minimum detectable temperature difference automatic testing equipment of the utility model embodiment
Structure chart.
Embodiment
Illustrative embodiments of the present utility model are introduced with reference now to accompanying drawing, however, the utility model can use many
Different forms is implemented, and is not limited to embodiment described herein, there is provided these embodiments are in order at large and complete
Open the utility model entirely, and fully pass on the scope of the utility model to person of ordinary skill in the field.For
Term in the illustrative embodiments being illustrated in the accompanying drawings is not to restriction of the present utility model.In the accompanying drawings, identical
Cells/elements use identical reference.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with usually used dictionary, be appreciated that and its
The linguistic context of association area has consistent implication, and is not construed as Utopian or overly formal meaning.
A kind of infrared thermoviewer minimum detectable temperature difference automatic testing equipment, described device include:
Optical table 101, the horizontal stable of optical table 101 is without friction, for carrying all devices；
Temperature control modules 102, the temperature control modules 102 are used to control environment temperature during test；
Black matrix source module 103, the black matrix source module 103 is made up of difference black-body resource, for sending infra-red radiation；
Target wheel module 104, the circular hole target of different space frequency is provided with the target wheel module 104, passes through target
Mark wheel rotation uses the circular hole target of different space frequency；For making black matrix source radiation be produced by circular hole target needed for test
The infra-red radiation target of designated shape and frequency；
Difference black-body resource temperature controller 105, the difference black-body resource temperature controller 105 are used to set black matrix source temperature
So as to control infra-red radiation size；
Parallel light tube 106, the parallel light tube 106 are flat for infra-red radiation caused by black matrix source module 103 to be changed into
Row light beam gathers for infrared thermoviewer；
Computer 107, the computer 107 be used for difference black-body resource temperature controller 105, target wheel module 104 with
And infrared thermoviewer to be measured enters row data communication, and then circular hole target spatial frequency and black matrix source temperature are set and gathered infrared
Imager view data；The computer 107 is used to handle infrared thermoviewer view data, obtains minimum detectable temperature difference test
As a result.
Further, described device includes precise rotating platform 108, and the precise rotating platform 108 is used to accurately adjust infrared imaging
The image-forming range and angle of instrument, so that infrared thermoviewer accurately collects the infra-red radiation of the output of parallel light tube 106；The precision
Turntable 108 is controlled by computer 107；
Further, the temperature control modules 102 are the screened room that may be temperature controlled, described device other
Module is placed in the screened room；
Further, specific circular hole target is placed in black matrix source module 103 and parallel light tube in the target wheel module 104
Between 106, the infra-red radiation of difference black-body resource is set to enter parallel light tube 106, the particular target wheel root after passing through circular hole target
The circular hole target of the particular space frequency determined according to the control of computer 107；
Further, described device is to circular hole targets in addition to it need to be marked with and computer processing data module makes corresponding modification,
It can be used in the measurement experiment of noise equivalent temperature difference (NETD), minimum resolvable temperature difference (MRTD) and transmission function (MFT).
Claims (4)
1. a kind of infrared thermoviewer minimum detectable temperature difference automatic testing equipment, described device include:
Optical table, the optical table horizontal stable is without friction, for carrying all devices；
Temperature control modules, the temperature control modules are used to control environment temperature during test；
Black matrix source module, the black matrix source module is made up of difference black-body resource, for sending infra-red radiation；
Target wheel module, the circular hole target of different space frequency is provided with the target wheel module, is made by the rotation of target wheel
With the circular hole target of different space frequency；For make black matrix source radiation by circular hole target produce test needed for designated shape and
The infra-red radiation target of frequency；
Difference black-body resource temperature controller, the difference black-body resource temperature controller are used to set black matrix source temperature red so as to control
External radiation size；
Parallel light tube, the parallel light tube be used for by infra-red radiation caused by black matrix source module be changed into collimated light beam for it is infrared into
As instrument gathers；
Computer, the computer are used for and difference black-body resource temperature controller, target wheel module and infrared thermoviewer to be measured
Enter row data communication, and then circular hole target spatial frequency and black matrix source temperature are set and gather infrared thermoviewer view data；
The computer is used to handle infrared thermoviewer view data, obtains minimum detectable temperature difference test result.
2. device according to claim 1, it is characterised in that：Described device includes precise rotating platform, and the precise rotating platform is used
In the image-forming range and angle of accurately adjustment infrared thermoviewer, so that infrared thermoviewer accurately collects the red of parallel light tube output
External radiation；The precise rotating platform is controlled by computer.
3. device according to claim 1, it is characterised in that：The temperature control modules may be temperature controlled
Screened room, other modules of described device are placed in the screened room.
4. device according to claim 1, it is characterised in that：Specific circular hole target is placed in difference in the target wheel module
Between black-body resource and parallel light tube, the infra-red radiation of difference black-body resource is set to enter parallel light tube, the spy after passing through circular hole target
Targeting mark wheel controls the circular hole target of the particular space frequency determined according to computer.
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| CN201720793617.2U CN207180879U (en) | 2017-07-03 | 2017-07-03 | A kind of infrared thermoviewer minimum detectable temperature difference automatic testing equipment |
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| CN201720793617.2U CN207180879U (en) | 2017-07-03 | 2017-07-03 | A kind of infrared thermoviewer minimum detectable temperature difference automatic testing equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421717A (en) * | 2017-07-03 | 2017-12-01 | 中国电力科学研究院 | A kind of infrared thermoviewer minimum detectable temperature difference automatic test approach and device |
| CN108871587A (en) * | 2018-07-31 | 2018-11-23 | 电子科技大学 | The Intelligent target device and its application method of thermal infrared imager NETD test |
| CN108897059A (en) * | 2018-06-29 | 2018-11-27 | 北京航天自动控制研究所 | A kind of Infrared Targets imaging detectivity analysis method |
| CN110231094A (en) * | 2019-07-16 | 2019-09-13 | 北京宏大天成防务装备科技有限公司 | A kind of thermal infrared imager detection device |
| CN112556858A (en) * | 2020-12-07 | 2021-03-26 | 深圳市优必选科技股份有限公司 | Blackbody detection method, temperature measurement robot, terminal equipment and storage medium |
| CN114252162A (en) * | 2021-12-07 | 2022-03-29 | 南京理工大学 | Thermal infrared imager parameter testing system under space environment |
-
2017
- 2017-07-03 CN CN201720793617.2U patent/CN207180879U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421717A (en) * | 2017-07-03 | 2017-12-01 | 中国电力科学研究院 | A kind of infrared thermoviewer minimum detectable temperature difference automatic test approach and device |
| CN108897059A (en) * | 2018-06-29 | 2018-11-27 | 北京航天自动控制研究所 | A kind of Infrared Targets imaging detectivity analysis method |
| CN108871587A (en) * | 2018-07-31 | 2018-11-23 | 电子科技大学 | The Intelligent target device and its application method of thermal infrared imager NETD test |
| CN110231094A (en) * | 2019-07-16 | 2019-09-13 | 北京宏大天成防务装备科技有限公司 | A kind of thermal infrared imager detection device |
| CN112556858A (en) * | 2020-12-07 | 2021-03-26 | 深圳市优必选科技股份有限公司 | Blackbody detection method, temperature measurement robot, terminal equipment and storage medium |
| CN112556858B (en) * | 2020-12-07 | 2022-02-11 | 深圳市优必选科技股份有限公司 | Blackbody detection method, temperature measurement robot, terminal equipment and storage medium |
| CN114252162A (en) * | 2021-12-07 | 2022-03-29 | 南京理工大学 | Thermal infrared imager parameter testing system under space environment |
| CN114252162B (en) * | 2021-12-07 | 2023-12-08 | 南京理工大学 | Thermal infrared imager parameter test system under space environment |
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