CN108519217A - A kind of adjustable infrared test system and method for multiple target visual field - Google Patents
A kind of adjustable infrared test system and method for multiple target visual field Download PDFInfo
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- CN108519217A CN108519217A CN201810343527.2A CN201810343527A CN108519217A CN 108519217 A CN108519217 A CN 108519217A CN 201810343527 A CN201810343527 A CN 201810343527A CN 108519217 A CN108519217 A CN 108519217A
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- 238000012360 testing method Methods 0.000 title claims abstract description 77
- 230000000007 visual effect Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 14
- 230000005457 Black-body radiation Effects 0.000 claims abstract description 53
- 239000011159 matrix material Substances 0.000 claims abstract description 30
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 230000001678 irradiating effect Effects 0.000 claims abstract description 4
- 230000005855 radiation Effects 0.000 claims description 12
- 238000004088 simulation Methods 0.000 claims description 11
- 230000004044 response Effects 0.000 claims description 8
- 238000003384 imaging method Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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Abstract
The present embodiments relate to a kind of adjustable infrared test systems of multiple target visual field, including：Optics support platform (1), for providing operation support to relevant device；Curved support guide rail (2) is fixed on the optics support platform (1)；At least one blackbody radiation source (3) is distributed on the curved support guide rail (2), can do circular motion along the curved support guide rail, so that the blackbody radiation source has continuously adjustable irradiating angle；At least one black matrix controller (4), the temperature for controlling the blackbody radiation source；Industrial personal computer (5), sets the shift position for controlling the blackbody radiation source；Tested device (6) is placed in below the curved support guide rail, and the performance parameter of the tested device is determined by the test of the test system.Whole system is simple in structure, can accurately control, so that test structure is more accurate, meets the functions such as different visual field distortion tests, temperature-responsive test, system focal length test.
Description
Technical field
The present invention relates to optical testing arts, and in particular to a kind of adjustable infrared test system and method for multiple target visual field.
Background technology
Infrared system belongs to temperature resolution system, for the infrared system of big visual field, due to the increase of field angle, is
The distortion of system can increase therewith, and disc of confusion is caused to deform, and Energy distribution is uneven, and target acquisition and resolution capability are deteriorated.At present
Influence of the disc of confusion deformation to Energy distribution caused by distortion can correct, but need to demarcate it early period.
And existing test system complex and test inaccuracy, it is inaccurate for the simulation of target source, and then cause to test
The difference of parameter, the present invention develop a kind of adjustable infrared test system and method for multiple target visual field, are applicable in by studying for a long period of time
Complete machine field angle, system focal length in infrared camera assembling process, the test of the functions such as response sensitivity, transmission function.This survey
Examination equipment can meet the functions such as different visual field distortion tests, temperature-responsive test, system focal length test.
Invention content
An embodiment of the present invention provides a kind of adjustable infrared test system and method for multiple target visual field, main mesh of the invention
Be to solve the existing test system technical problem inaccurate to test equipment test.
An embodiment of the present invention provides a kind of adjustable infrared test systems of multiple target visual field, including：Optics support platform 1,
For providing operation support to relevant device；Curved support guide rail 2 is fixed in the optics support platform 1；It is at least one black
Body radiation source 3 is distributed on the curved support guide rail 2, circular motion can be done along the curved support guide rail 2, so that described
Blackbody radiation source 3 has continuously adjustable irradiating angle；At least one black matrix controller 4 is placed in the optics support platform 1
On, the temperature for controlling the blackbody radiation source 3；Industrial personal computer 5 is placed in the optics support platform 1, described for controlling
The shift position of blackbody radiation source 3；Tested device 6 is fixed in the optics support platform 1, is placed in the curved support
2 lower section of guide rail, the performance parameter of the tested device 6 is determined by the test of the test system.
Further, it is flat to be fixed on the optics support by rail brackets 21 respectively for 2 both ends of curved support guide rail
On platform 1；The curved support guide rail 2 may be at horizontal position or vertical position.
Further, the blackbody radiation source 3 includes：Infrared light supply 31, provides illumination；Infrared transmission camera lens 32, is used
It is directional light to penetrate light, for simulating infinity target；Mobile platform 33 provides support for the blackbody radiation source 3, and makes described
Mobile platform 33 slides on the curved support guide rail 2.
Further, the mobile platform 33 includes two stepper motors and an electric rotary table motor, is passed through
RS485 buses are connect with the industrial personal computer 5.
Further, the tested device 6 is fixed on the optics support platform 1 by multidimensional precision adjustment holder 61
On, the multidimensional precision adjustment holder 61 is that the tested device 6 provides two-dimension translational and one-dimensional rotary motion.
Further, 2 both sides of curved support guide rail respectively include magnetic railings ruler 22, and 22 resolution ratio of the magnetic railings ruler is
1um, the industrial personal computer 5 read 22 umber of pulse of magnetic railings ruler to judge two stepper motors and one by magnetic grid ruler reading head
The distance of electric rotary table motor operation and direction, to which accurate closed-loop control mobile platform 33 runs to specified position.
Further, the blackbody radiation source 3 is 3, and the black matrix controller 4 is 3, each black matrix control
Device 4 controls each described blackbody radiation source 3 respectively.
In addition, being carried out using as above any adjustable infrared test system of the multiple target visual field the present invention also provides a kind of
Tested device 6 is installed on multidimensional precision adjustment holder 61, is placed in 2 lower position of curved support guide rail by the method for test；Gu
The position of fixed one of blackbody radiation source 3 controls other described blackbody radiation sources 3 in the curved support by industrial personal computer 5
Circular motion is done on guide rail 2, simulated light converges at 2 center of circle of guide rail；By black matrix controller 4 by 3 temperature of the blackbody radiation source
Setting is to assigned temperature, 6 position of adjustment tested device, make the light that blackbody radiation source 3 in an intermediate position is sent out be imaged onto by
The center of device 6 is surveyed, then according to test needs, the position of intermediate both sides blackbody radiation source 3 is adjusted separately, makes it respectively
Meet test request with the angle of center simulation source；By the performance parameter for testing tested device 6 described in system-computed.
Further, for tested device 6, the focal length of tested device 6 can be calculated according to the relationship of focal length and corner：
F × tan θ=y
In formula, f-tested device focal length；
Angle between θ-blackbody radiation source；
Displacement distance of the picture of y-blackbody radiation source in tested device image planes.
Further, described to include " by the performance parameter for testing tested device 6 described in system-computed "：
Sensitivity of the tested device 6 to temperature is tested, including：The temperature for adjusting the blackbody radiation source 3, by the black matrix
Picture of the radiation source 3 in tested device 6 is adjusted to different location, and mutually synthermal target is calculated by the gray value of picture not
With the response consistency of position；Or
The modulation transfer function of tested device 6 is calculated, including：It sets the blackbody radiation source 3 to point target, passes through
After tested device 6 is imaged, it is imaged onto the image planes position of tested device 6, imaging is a hot spot at this time, is acquired to the hot spot
After be normalized, then calculated by Fourier transformation, obtain tested device 6 modulation transfer function.
The advantageous effects of the present invention are as follows：
The present invention provides a kind of adjustable infrared test system and method for multiple target visual field, is controlled by three black matrix controllers
Being accurately positioned for three black matrix target sources, enables tested device to be clearly imaged, and by the position of imaging, effect, pass through
Simulation calculates the various performance parameters for obtaining tested device.Whole system is simple in structure, can accurately control, so that test
Structure is more accurate, meets the functions such as different visual field distortion tests, temperature-responsive test, system focal length test.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the adjustable infrared test system structure diagram of multiple target visual field of the embodiment of the present invention；
Fig. 2 is blackbody radiation source structural schematic diagram described in the embodiment of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is the purpose only merely for description specific embodiment, is not intended to be limiting
The application.In the embodiment of the present application and "an" of singulative used in the attached claims, " described " and "the"
It is also intended to including most forms, unless context clearly shows that other meanings, " a variety of " generally comprise at least two.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation of description affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate：Individualism A, exists simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.
It will be appreciated that though may XXX be described using term first, second, third, etc. in the embodiment of the present application, but
These XXX should not necessarily be limited by these terms.These terms are only used for distinguishing XXX.For example, not departing from the embodiment of the present application model
In the case of enclosing, the first XXX can also be referred to as the 2nd XXX, and similarly, the 2nd XXX can also be referred to as the first XXX.
Depending on context, word as used in this " if ", " if " can be construed to " ... when " or
" when ... " or " in response to determination " or " in response to detection ".Similarly, context is depended on, phrase " if it is determined that " or " such as
Fruit detect (condition or event of statement) " can be construed to " when determining " or " in response to determination " or " when detection (statement
Condition or event) when " or " in response to detection (condition or event of statement) ".
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment 1
As shown in Figs. 1-2, an embodiment of the present invention provides a kind of adjustable infrared test systems of multiple target visual field, including：Light
Support platform 1 is learned, for providing operation support to relevant device；Curved support guide rail 2 is fixed on the optics support platform 1
On；At least one blackbody radiation source 3 is distributed on the curved support guide rail 2, can do circular arc along the curved support guide rail 2
Movement, so that the blackbody radiation source 3 has continuously adjustable irradiating angle；At least one black matrix controller 4, is placed in the light
It learns in support platform 1, the temperature for controlling the blackbody radiation source 3；Industrial personal computer 5 is placed in the optics support platform 1,
Shift position for controlling the blackbody radiation source 3；Tested device 6 is fixed in the optics support platform 1, is placed in
2 lower section of the curved support guide rail, the performance parameter of the tested device 6 is determined by the test of the test system.Preferably,
The blackbody radiation source 3 is 3, and the black matrix controller 4 is 3, and each black matrix controller 4 controls each respectively
The blackbody radiation source 3 makes its Temperature Distribution between 20-150 degree.
Wherein, the optics support platform 1 is fixed in 2 both ends of curved support guide rail by rail brackets 21 respectively
On, the two is riveted by screw, and the holder 21 has two lugs, is connect with the supporting guide 2 by a rotation axis, described
Supporting guide 2 can be rotated around the shaft, so that the curved support guide rail 2 may be at horizontal position or vertical position
It sets, to meet the needs of different tested devices, the tested device can be camera, video camera etc..
Further, the blackbody radiation source 3 includes：Infrared light supply 31, provides infrared illumination；Infrared transmission camera lens 32,
It has collimation camera lens, and it is directional light to make emergent light, for simulating infinity target, wherein the light that the infrared light supply 31 emits
Infinity target source hot spot is formed after being irradiated by infrared transmission camera lens 32, is irradiated on tested camera.Further include that a movement is flat
Platform 33 is riveted with the infrared transmission camera lens 32, provides support for the blackbody radiation source 3, and the mobile platform 33 is made to exist
It is slided on the curved support guide rail 2.Specifically, the mobile platform 33 includes two stepper motors and an electric rotary table
Motor is connect by RS485 buses with the industrial personal computer 5.The industrial personal computer 5 is wanted according to measuring and calculating displacement, controls black matrix spoke
It penetrates source 3 and is moved to designated position.
Further, 2 both sides of curved support guide rail respectively include magnetic railings ruler 22, and the magnetic railings ruler 22 arcuately supports
Guide rail 2 is continuously distributed, and 22 resolution ratio of the magnetic railings ruler is 1um, and the magnetic railings ruler 22 provides the anti-of 3 shift position of blackbody radiation source
Feedback signal is to industrial personal computer 5.The industrial personal computer 5 reads 22 umber of pulse of magnetic railings ruler to judge two steps by magnetic grid ruler reading head
The distance and direction of stepper motor and electric rotary table motor operation, to which accurate closed-loop control mobile platform 33 runs to finger
Fixed position.
Further, the tested device 6 is fixed on the optics support platform 1 by multidimensional precision adjustment holder 61
On, the multidimensional precision adjustment holder 61 is that the tested device 6 provides two-dimension translational and one-dimensional rotary motion.
When test, system under test (SUT) is installed on multidimensional precision adjustment holder, is placed in arc-shaped guide rail lower position, it is electronic flat
Platform is engaged, to realize that simulation source is done on guide rail as carrier fixed-analog source by motor driven gear and guide rail rack
Circular motion, simulated light converge at the guide rail center of circle.When test, first blackbody temperature is set to assigned temperature (according to different sound
Should require that blackbody temperature height can be arranged), adjustment system under test (SUT) position makes in three simulation sources, in an intermediate position is red
The light that outer analog light source is sent out is imaged onto the center of system under test (SUT), then according to test needs, adjusts separately center both sides
Simulation source makes its angle respectively with center simulation source meet test request.
The present invention provides a kind of adjustable infrared test system and method for multiple target visual field, is controlled by three black matrix controllers
Being accurately positioned for three black matrix target sources, enables tested device to be clearly imaged, and by the position of imaging, effect, pass through
Simulation calculates the various performance parameters for obtaining tested device.Whole system is simple in structure, can accurately control, so that test
Structure is more accurate, meets the functions such as different visual field distortion tests, temperature-responsive test, system focal length test.
Embodiment 2
In addition, being carried out using as above any adjustable infrared test system of the multiple target visual field the present invention also provides a kind of
Tested device 6 is installed on multidimensional precision adjustment holder 61, is placed in 2 lower position of curved support guide rail by the method for test；Gu
The position of fixed one of blackbody radiation source 3 controls other described blackbody radiation sources 3 in the curved support by industrial personal computer 5
Circular motion is done on guide rail 2, simulated light converges at 2 center of circle of guide rail；By black matrix controller 4 by 3 temperature of the blackbody radiation source
Setting is to assigned temperature, 6 position of adjustment tested device, make the light that blackbody radiation source 3 in an intermediate position is sent out be imaged onto by
The center of device 6 is surveyed, then according to test needs, the position of intermediate both sides blackbody radiation source 3 is adjusted separately, makes it respectively
Meet test request with the angle of center simulation source；By the performance parameter for testing tested device 6 described in system-computed.
Further, for tested device 6, the focal length of tested device 6 can be calculated according to the relationship of focal length and corner：
F × tan θ=y
In formula, f-tested device focal length；
Angle between θ-blackbody radiation source；
Displacement distance of the picture of y-blackbody radiation source in tested device image planes.
Further, described to include " by the performance parameter for testing tested device 6 described in system-computed "：
Sensitivity of the tested device 6 to temperature is tested, including：The temperature for adjusting the blackbody radiation source 3, by the black matrix
Picture of the radiation source 3 in tested device 6 is adjusted to different location, and mutually synthermal target is calculated by the gray value of picture not
With the response consistency of position；Or
The modulation transfer function of tested device 6 is calculated, including：It sets the blackbody radiation source 3 to point target, passes through
After tested device 6 is imaged, it is imaged onto the image planes position of tested device 6, imaging is a hot spot at this time, is acquired to the hot spot
After be normalized, then calculated by Fourier transformation, obtain tested device 6 modulation transfer function.
For control section, black matrix controller can set the temperature of black matrix by front panel, such as between 20-150 degree, temperature
Degree is higher, and hot spot is brighter, and includes on digital display meter by Current Temperatures, and three black matrixes are mutual indepedent, do not interfere with each other.Black matrix power supply
Line provides power supply for black matrix controller and radiation source.
The rear side of control cabinet is there are one attaching plug, two motors, the both sides magnetic railings ruler being responsible on control cabinet and guide rail
It is powered with both sides limit switch.
Three blackbody radiation sources pass through PID control by three black matrix controller power supplies and control, black matrix controller respectively
Algorithm controls the switching frequency of hight-speed CMOS switch pipe, can be precisely controlled the temperature radiation of blackbody radiation source, such as 20-150 degree
Between, preferably 100 degree.Each black matrix controller controls a radiation source, between three independently of each other.
Guide rail both sides are mounted with that magnetic railings ruler, resolution ratio reach 1um respectively, and control system passes through magnetic railings ruler high-precision reading head
Magnetic railings ruler umber of pulse is read to judge distance and the direction of motor operation, so as to accurate closed-loop control motor operation to user
Specified position.Both sides lens barrel is controlled by two 42 stepper motors respectively, and user only needs again software interface input to need
The angle to be set can adjust lens barrel to the position needed.
Two stepper motors and electric rotary table motor on guide rail are connected in a RS485 bus, and system has regulation
Good communications protocol, three motors will not interfere with each other, independent operating, and upper so control cabinet is only there are one RS485 interfaces
Machine is communicated.
The advantageous effects of the present invention are as follows：
The present invention provides a kind of adjustable infrared test system and method for multiple target visual field, is controlled by three black matrix controllers
Being accurately positioned for three black matrix target sources, enables tested device to be clearly imaged, and by the position of imaging, effect, pass through
Simulation calculates the various performance parameters for obtaining tested device.Whole system is simple in structure, can accurately control, so that test
Structure is more accurate, meets the functions such as different visual field distortion tests, temperature-responsive test, system focal length test.
The apparatus embodiments described above are merely exemplary, wherein the unit illustrated as separating component can
It is physically separated with being or may not be.Some or all of module therein can be selected according to the actual needs
It achieves the purpose of the solution of this embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of adjustable infrared test system of multiple target visual field, which is characterized in that including：
Optics support platform (1), for providing operation support to relevant device；
Curved support guide rail (2) is fixed on the optics support platform (1)；
At least one blackbody radiation source (3) is distributed on the curved support guide rail (2), can be along the curved support guide rail (2)
Circular motion is done, so that the blackbody radiation source (3) has continuously adjustable irradiating angle；
At least one black matrix controller (4) is placed on the optics support platform (1), for controlling the blackbody radiation source (3)
Temperature；
Industrial personal computer (5) is placed on the optics support platform (1), the shift position for controlling the blackbody radiation source (3)；
Tested device (6) is fixed on the optics support platform (1), is placed in below the curved support guide rail (2), is led to
The test for crossing the test system determines the performance parameter of the tested device (6).
2. test system according to claim 1, it is characterised in that：
Curved support guide rail (2) both ends are fixed on by rail brackets (21) on the optics support platform (1) respectively；Institute
It states curved support guide rail (2) and may be at horizontal position or vertical position.
3. test system according to claim 1, it is characterised in that：The blackbody radiation source (3) includes：
Infrared light supply (31), provides illumination；
Infrared transmission camera lens (32), it is directional light to make emergent light, for simulating infinity target；
Mobile platform (33) provides support for the blackbody radiation source (3), and makes the mobile platform (33) in the arc branch
It is slided on support guide rail (2).
4. test system according to claim 3, it is characterised in that：The mobile platform (33) includes two stepper motors
With an electric rotary table motor, it is connect with the industrial personal computer (5) by RS485 buses.
5. test system according to claim 1, it is characterised in that：The tested device (6) is adjusted by multidimensional precision
Holder (61) is fixed on the optics support platform (1), and the multidimensional precision adjustment holder (61) is the tested device (6)
Two-dimension translational and one-dimensional rotary motion are provided.
6. test system according to claim 4, it is characterised in that：Curved support guide rail (2) both sides respectively include
Magnetic railings ruler (22), magnetic railings ruler (22) resolution ratio are 1um, and the industrial personal computer (5) reads magnetic railings ruler by magnetic grid ruler reading head
(22) umber of pulse judges distance and the direction of two stepper motors and electric rotary table motor operation, to accurate
Closed-loop control mobile platform (33) runs to specified position.
7. test system according to claim 1, it is characterised in that：The blackbody radiation source (3) is 3, the black matrix
Controller (4) is 3, and each black matrix controller (4) controls each described blackbody radiation source (3) respectively.
8. a kind of method tested using any adjustable infrared test systems of multiple target visual field of claim 1-7,
It is characterized in that：
Tested device (6) is installed on multidimensional precision adjustment holder (61), curved support guide rail (2) lower position is placed in；
The position of fixed one of blackbody radiation source (3), controls other described blackbody radiation sources (3) by industrial personal computer (5) and exists
Circular motion is done on the curved support guide rail (2), simulated light converges at guide rail (2) center of circle；
The blackbody radiation source (3) temperature is set to assigned temperature by black matrix controller (4), adjusts tested device (6) position
It sets, so that the light that blackbody radiation source in an intermediate position (3) is sent out is imaged onto the center of tested device (6), then basis
Test needs, and adjusts separately the position of intermediate both sides blackbody radiation source (3), so that it is respectively met with the angle of center simulation source and surveys
Examination requires；
By the performance parameter for testing tested device (6) described in system-computed.
9. according to the method described in claim 8, it is characterized in that：For tested device (6), according to the relationship of focal length and corner
The focal length of tested device (6) can be calculated：
F × tan θ=y
In formula, f-tested device focal length；
Angle between θ-blackbody radiation source；
Displacement distance of the picture of y-blackbody radiation source in tested device image planes.
10. according to the method described in claim 8, it is characterized in that：It is described " to pass through tested device described in test system-computed
(6) performance parameter " includes：
Sensitivity of the tested device (6) to temperature is tested, including：The temperature for adjusting the blackbody radiation source (3), by the black matrix
Picture of the radiation source (3) in tested device (6) is adjusted to different location, and mutually synthermal target is calculated by the gray value of picture
In the response consistency of different location；Or
The modulation transfer function (MTF) of tested device (6) is calculated, including：Set the blackbody radiation source (3) to point target,
After tested device (6) imaging, it is imaged onto the image planes position of tested device (6), imaging is a hot spot at this time, to the light
It is normalized after spot acquisition, is then calculated by Fourier transformation, obtain the modulation transfer function of tested device (6)
(MTF)。
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| CN109238336A (en) * | 2018-09-12 | 2019-01-18 | 东莞市奕冠塑胶五金电子有限公司 | A kind of Full-automatic infrared inductor test cabinet |
| CN109781392A (en) * | 2019-03-12 | 2019-05-21 | 西安科佳光电科技有限公司 | A kind of large visual field optical system detection device and detection method |
| CN113588094A (en) * | 2021-08-13 | 2021-11-02 | 超晶科技（北京）有限公司 | High-low temperature comprehensive infrared test system |
| CN113884122A (en) * | 2021-09-18 | 2022-01-04 | 温州大学 | MEMS sensor thermal parameter testing device |
| CN114910496A (en) * | 2022-05-23 | 2022-08-16 | 丹东奇伟企业管理咨询有限公司 | Crystal automatic orientation measuring device and measuring method |
| CN116403389A (en) * | 2023-04-03 | 2023-07-07 | 珠海精实测控技术股份有限公司 | View angle testing mechanism and method |
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