CN109507212A - A kind of the reflectance test system and test method of absorbing material - Google Patents
A kind of the reflectance test system and test method of absorbing material Download PDFInfo
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- CN109507212A CN109507212A CN201811623286.3A CN201811623286A CN109507212A CN 109507212 A CN109507212 A CN 109507212A CN 201811623286 A CN201811623286 A CN 201811623286A CN 109507212 A CN109507212 A CN 109507212A
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- G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
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Abstract
The invention discloses the reflectance test systems and test method of a kind of absorbing material, reflectance test system includes incidence angle regulating device, workpiece cushion cap and to penetrating antenna, incidence angle regulating device includes bracket, cantilever and rotary drive, cantilever is rack-mount by a vertical plane automatic displacement component and can be moved in perpendicular by vertical plane automatic displacement Component driver, rotary drive is mounted on cantilever, to penetrate antenna be connected with the driving end of rotary drive and can by rotary drive drive around horizontal axis rotate.Test method includes so that workpiece cushion cap is protruded into fire door using the movement of robot drives heating furnace, unlatching heating furnace treats test sample plate and is heated and kept the temperature, make heating furnace far from workpiece cushion cap using robot drives heating furnace is mobile, unlatching carries out reflectance test step to antenna is penetrated.The present invention has many advantages, such as that structure is simple, at low cost, stable and reliable in work, degree of regulation is high, long service life, easily fabricated assembly.
Description
Technical field
The present invention relates to microwave test equipment technology fields, and in particular to a kind of reflectance test system of absorbing material and
Test method.
Background technique
Radar absorbing (abbreviation absorbing material) has extensive purposes, radar reflectivity in civilian and military field
(abbreviation reflectivity) is the important indicator parameter for assessing absorbing material absorbing property.Reflection index of wave suction material under room temperature is surveyed
Amount technology is more mature and has been widely applied, but as engine, high-speed aircraft and high-power pulsed ion beams are to suction
The promotion that wave material temperature resistant capability requires, the requirement to absorbing material radar reflectivity test macro under the high temperature conditions are also more next
It is higher.
Currently, high temperature reflectance test system mainly by the way of lower heating, i.e., heater is arranged under template to be measured
Side, the radar wave plane of incidence are upper surface, and when testing the high temperature reflectivity of template to be measured, hot face and the radar wave plane of incidence are not same
On one side, thus for the high temperature radar absorbing with heat insulating function can not accurate characterization its hot environment absorbing property.
Meanwhile the Test bench of the reflectance test system of existing lower heating method mainly includes plate test bench and bevel edge test bench two
Kind.Plate test bench is identical as the Test bench of room temperature reflectance test system, template arranged beneath heater to be measured, but due to
Heater layout area is limited no more than template size to be measured, while by the installation attachment such as heater electrode, binding post, is heated
Bulk area can be less than template area to be measured, therefore exist and heat non-uniform problem, and the temperature of template central area to be measured is obvious
Higher than surrounding, lead to problems such as test temperature inaccuracy and template to be measured since uneven heating causes deformation.To solve heating
Homogeneity question, application No. is 201320235754.6 Chinese patents to disclose a kind of reflectivity high temperature side of bevel edge test bench
Platform is tried, which increases fever bulk area, makes to heat bulk area greater than test sample plate area, although preferable alleviate
Plate test bench heats non-uniform problem, but since heating bulk area is greater than template area to be measured, especially calandria is big
It is handled in the region of template to be measured using bevel edge, there are large errors in electromagnetic wave oblique incidence test process, lead to not standard
The really reflectivity under the conditions of measurement oblique incidence.In addition, the sample heat-insulation system of existing high temperature reflectance test system is all made of people
Work opening ways, the opening ways have the deficiencies of high temperature easily causes personnel to burn, the operating time is long.
Since absorbing material is faced with the working condition of different electromagnetic wave incident angles in use, in different incidences
Material reflectance data under corner condition are extremely important, and this requires radar reflectivity test macros can adjust different incidences
Angle.There are mainly two types of the methods of reflectivity under the conditions of existing radar reflectivity test macro measurement different incidence angles: one is
Using electric cambered gear drive antenna rotation realize different angle reflectivity measurement, but gear used by this method across
Degree is big, and precision and rigidity to gear are proposed very harsh requirement, and there are manufacture and installation difficulty, and big, gear easily blocks
Extremely, problem at high cost, and service life is not grown；Second is to drive day using small span gear driving " 7 " font cantilever
Line rotation, although cost is relatively low for this method, cantilever design easily causes the shaking of antenna, using the time it is longer after also easily cause
Gear shifting quadrant texturing.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the shortcomings of the prior art, provides that a kind of structure is simple, cost
It is low, stable and reliable in work, degree of regulation is high, long service life, easily fabricated assembly absorbing material reflectance test system,
Correspondingly provide a kind of test method for carrying out reflectance test to absorbing material using the reflectance test system.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of reflectance test system of absorbing material, including incidence angle regulating device, workpiece cushion cap and to penetrating antenna, institute
Stating incidence angle regulating device includes bracket, cantilever and rotary drive, and the cantilever is installed by a vertical plane automatic displacement component
It can be moved on bracket and in perpendicular by vertical plane automatic displacement Component driver, the rotary drive is mounted on cantilever
On, it penetrates antenna for described pair and is connected with the driving end of rotary drive and can be driven by rotary drive around horizontal axis rotation.
Further improvement as above-mentioned reflectance test system:
The vertical plane automatic displacement component include the first slide being slidedly arranged on bracket and be slidedly arranged in first slide the
The glide direction of two slides, the first slide and second slide is parallel with perpendicular, and the sliding of the first slide
Perpendicular to the glide direction of second slide, the cantilever is mounted in second slide in direction, and the vertical plane automatic displacement component is also
It is driven including the first sliding drive mechanism for driving first slide to slide and the second sliding for driving second slide to slide
Motivation structure.
First sliding drive mechanism and second sliding drive mechanism are the rack-and-pinion machine of servo motor driving
Structure or the ball wire rod mechanism of servo motor driving.
The servo motor has the band brake apparatus braked when power is off.
The reflectance test system is additionally provided with heating device, and the heating device includes manipulator and adding with burner hearth
Hot stove, the burner hearth have downwardly facing opening fire door, the manipulator be connected with heating furnace and can drive heating furnace movement so that
Workpiece cushion cap protrudes into the fire door or exits workpiece cushion cap simultaneously far from the fire door.
The bottom surface of the burner hearth is horizontal plane, and the opening size of the fire door is less than the bed-plate dimension of burner hearth, and the furnace
Mouth is located at the middle position of the bottom surface of the burner hearth；The heating furnace is lifted on the driving end of manipulator and is moved through heating furnace
Fire door is kept downwards in journey.
The furnace wall of the heating furnace includes the thermal insulation layer, insulating layer and shell arranged from inside to outside, and the thermal insulation layer is by making pottery
Porcelain composite material skin and aeroge are constituted, and the insulating layer is made of fiber insulation board and fiber thermal insulation cotton.
The heating furnace includes the furnace shell for surrounding the burner hearth, and the top of the burner hearth and four peripheral portions are mounted on several
Be parallel to each other and uniform intervals arrangement heating rod；The burner hearth is equipped with several for detecting the temperature sensing of temperature in burner hearth
Device, several temperature sensors are evenly arranged in the surface of fire door.
A kind of test method carrying out reflectance test to absorbing material using above-mentioned reflectance test system, including it is following
Step:
(A) template to be measured is placed on workpiece cushion cap, the upper of workpiece cushion cap is moved to by robot drives heating furnace
Then side drives heating furnace descending motion, so that workpiece cushion cap is protruded into the fire door of heating furnace, at this time the template to be measured on workpiece cushion cap
In burner hearth；
(B) unlatching heating furnace is treated test sample plate and is heated, until heat preservation is extremely when template temperature to be measured reaches set temperature
It is 15 minutes few；
(C) by the ascending motion of robot drives heating furnace, so that workpiece cushion cap is exited workpiece cushion cap, then drive heating furnace
Move to the position far from workpiece cushion cap；
(D) vertical and horizontal movement is done to antenna is penetrated by the driving of incidence angle regulating device in perpendicular, is made to penetrating
Antenna moves to scheduled test position along by the default arching trajectory in the center of circle of workpiece cushion cap, while being driven by rotary drive
It moves to antenna is penetrated around horizontal axis rotation, makes to antenna direction workpiece cushion cap is penetrated, unlatching carries out reflectance test to antenna is penetrated.
Further improvement as above-mentioned test method:
The bottom surface of the burner hearth and the upper surface of workpiece cushion cap are horizontal plane, and in the step (A), workpiece cushion cap is protruded into
The depth of the fire door of heating furnace are as follows: the bottom surface of the burner hearth is concordant with the upper surface of workpiece cushion cap.
Compared with the prior art, the advantages of the present invention are as follows: the reflectance test system of absorbing material of the invention enters
Firing angle regulating device drives cantilever to move in perpendicular using vertical plane automatic displacement component, is driven pair using rotary drive
It penetrates antenna and is rotated around horizontal axis and adjusted the angle, adjust automatically may be implemented to the diameter for penetrating antenna circular motion track and to penetrating
The angle of antenna, to make to penetrating antenna from different distance and being positioned against workpiece cushion cap, and then to be measured on workpiece cushion cap
Template carries out reflectance test.Due to the combination using vertical plane automatic displacement component and rotary drive, entire incidence angle is adjusted
The structure of device is simple, at low cost, stable and reliable in work, degree of regulation is high, long service life, easily fabricated assembly.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the reflectance test system of absorbing material.
Fig. 2 is the schematic view of the front view of incidence angle regulating device.
Fig. 3 is the overlooking structure diagram of incidence angle regulating device.
Fig. 4 is the side structure schematic view of incidence angle regulating device.
Fig. 5 is the schematic cross-sectional view of heating furnace.
Fig. 6 is schematic cross-sectional view when workpiece cushion cap protrudes into fire door.
Marginal data:
1, incidence angle regulating device；101, bracket；102, cantilever；103, rotary drive；104, first slide；105,
Two slides；106, the first sliding drive mechanism；107, the second sliding drive mechanism；2, workpiece cushion cap；3, heating device；31, add
Hot stove；311, burner hearth；312, fire door；313, thermal insulation layer；314, insulating layer；315, shell；316, heating rod；317, temperature sensing
Device；32, manipulator；4, to penetrating antenna.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figures 1 to 4, the reflectance test system of the absorbing material of the present embodiment, including incidence angle regulating device
1, workpiece cushion cap 2 and to antenna 4 is penetrated, workpiece cushion cap 2 is fixedly installed, and incidence angle regulating device 1 includes bracket 101,102 and of cantilever
Rotary drive 103, cantilever 102 are mounted on bracket 101 by a vertical plane automatic displacement component and can be by vertical plane automatic displacements
Component driver moves in perpendicular, and rotary drive 103 is mounted on cantilever 102, to penetrating antenna 4 and rotary drive
103 driving end is connected and can be driven by rotary drive 103 to be rotated around horizontal axis.The incidence angle of the reflectance test system
Regulating device 1 drives cantilever 102 to move in perpendicular using vertical plane automatic displacement component, is driven using rotary drive 103
Make that adjust automatically may be implemented to the diameter for penetrating 4 circular motion track of antenna to antenna 4 is penetrated around horizontal axis rotation adjustment angle
With to penetrating the angle of antenna 4, to make to penetrating antenna 4 from different distance and be positioned against workpiece cushion cap 2, and then to workpiece cushion cap
Template to be measured on 2 carries out reflectance test.It is whole due to the combination using vertical plane automatic displacement component and rotary drive 103
The structure of a incidence angle regulating device 1 is simple, at low cost, stable and reliable in work, degree of regulation is high, long service life, is easy to make
Make assembly.
In the present embodiment, resultant motion of the vertical plane automatic displacement Component driver to penetrating antenna 4 and being moved with two cross linears
Mode moves in perpendicular.Preferably, vertical plane automatic displacement component includes the first slide 104 being slidedly arranged on bracket 101
With the second slide 105 being slidedly arranged in first slide 104, the glide direction of first slide 104 and second slide 105 is and vertically
Plane is parallel, and the glide direction of first slide 104, perpendicular to the glide direction of second slide 105, cantilever 102 is mounted on second
On slide 105, vertical plane automatic displacement component further includes the first sliding drive mechanism 106 for driving first slide 104 to slide
With the second sliding drive mechanism 107 for driving second slide 105 to slide.The structure of the vertical plane automatic displacement component is simple,
It is at low cost, easy to maintain.And sliding structure is used, it is unlikely to deform, moves that smoothness is good, stable and reliable in work, service life
It is long.
Above-mentioned first slide 104 is slidedly arranged on bracket 101 by linear guide more than two, and second slide 105 passes through one
Group or more linear guide be slidedly arranged in second slide 105, it is ensured that first slide 104 and second slide 105 all have preferable
Sliding stability, linear guide is using existing mature component.Preferably, the glide direction of first slide 104 is horizontal direction, the
The glide direction of two slides 105 is vertical direction.
In the present embodiment, the first sliding drive mechanism 106 and the second sliding drive mechanism 107 are the tooth of servo motor driving
Take turns the ball wire rod mechanism of rackwork or servo motor driving, it is at low cost, driving precision is high, easily controllable.Gear teeth
Mechanism and ball wire rod mechanism are existing mature component.Specifically, the first sliding drive mechanism 106 is servo motor driving
Gear and rack teeth mechanism, middle gear is mounted in first slide 104, and rack gear is mounted on bracket 101, and wheel and rack is nibbled
It closes, the output shaft of servo motor is connected with gear, it is preferred that servo motor is connected by speed reducer with gear.Second sliding is driven
Motivation structure 107 is the ball wire rod mechanism of servo motor driving, and wherein the screw rod of ball wire rod mechanism may be rotatably mounted at, ball
The nut of screw body is mounted in second slide 105, and the output shaft of servo motor is connected with screw rod, it is preferred that servo motor
It is connected by speed reducer with screw rod.In the present embodiment, rotary drive 103 uses servo motor.
In the present embodiment, servo motor has the band brake apparatus braked when power is off, and when power is off, band brake apparatus will
Servo motor is locked, can prevent equipment from falling, and guarantees the safety of equipment and operator, and can prevent external force or other factors
Initial position is influenced, causes to calculate error.The specific structure and mounting means of band brake apparatus are existing mature technology.Preferably,
Each servo motor uses absolute value formula encoder, and can hold the record encoder position for a long time in system closedown power-off, is
System is initialized when powering on booting, encoder position is read, as the base position of system-computed, to improve control incidence angle
The accuracy that regulating device 1 acts.
In the present embodiment, cantilever 102 uses Q345 low-carbon steel seamless steel tube, is welded in second slide 105, structure is strong
Degree is high, bearing capacity is strong, is unlikely to deform, it is ensured that measuring accuracy.Incidence angle regulating device 1 is additionally provided with limitation first slide 104
It is switched with the preventing collision protection of 105 sliding scale of second slide, to guarantee safety.
In the present embodiment, reflectance test system is additionally provided with heating device 3, is heated for template to be measured, to realize
The high temperature reflectivity of absorbing material is tested.As shown in Figure 5 and Figure 6, heating device 3 including manipulator 32 and has burner hearth
311 heating furnace 31, burner hearth 311 have the fire door 312 of downwardly facing opening, and manipulator 32 is connected with heating furnace 31 and can drive heating
Furnace 31 is mobile so that workpiece cushion cap 2 protrudes into fire door 312 or exits workpiece cushion cap 2 simultaneously far from fire door 312.The heating device 3
It drives heating furnace 31 mobile using manipulator 32, heating furnace 31 can be made to be moved to the position that workpiece cushion cap 2 protrudes into fire door 312, with
Template to be measured on workpiece cushion cap 2 is heated, or the position for making heating furnace 31 move away from workpiece cushion cap 2, with right
Template to be measured after heating carries out reflectance test.Since workpiece cushion cap 2 is to protrude into burner hearth 311 from the bottom to top from fire door 312,
The template to be measured being placed on workpiece cushion cap 2, which is directly protruding into burner hearth 311, to be heated, and is treated the heating efficiency of test sample plate and is added
Thermal uniformity is good, can effectively ensure the temperature uniformity of template to be measured, upper surface (plane of incidence) temperature of template especially to be measured
Uniformity can avoid leading to test inaccuracy and template to be measured deformation because of non-uniform temperature；Meanwhile template to be measured
It is heated the upper surface of electromagnetic wave incident when face is test, when testing the absorbing material with heat insulating function, Neng Gouzhun
The true absorbing property characterized under its hot environment, can be improved the measuring accuracy of the absorbing material of heat insulating function；Also, using should
After heating device 3, under the premise of guaranteeing homogeneous heating and accurate heating surface, the size of workpiece cushion cap 2 and template to be measured can be made
Size it is consistent, avoid because workpiece cushion cap 2 is oversized influence test and lead to test error, can further improve test
Precision.In addition, the heating device 3 also can be automated work, operating efficiency and safety can be improved.
In the present embodiment, the bottom surface of burner hearth 311 is horizontal plane, and the opening size of fire door 312 is less than the bottom surface ruler of burner hearth 311
Very little, fire door 312 is located at the middle position of the bottom surface of burner hearth 311, temperature uniformity in burner hearth 311 can be improved in this way, and improve
Template to be measured being heated evenly property in burner hearth 311, and then improve the temperature uniformity after template to be measured is heated.
In the present embodiment, the furnace wall of heating furnace 31 includes the thermal insulation layer 313, insulating layer 314 and shell arranged from inside to outside
315, thermal insulation layer 313 is made of ceramic composite covering and aeroge, and it is scaling-off to can avoid the picking occurred during hot alternation
The problem low with the service life.Insulating layer 314 is made of fiber insulation board and fiber thermal insulation cotton, and heat insulation effect is good.Shell 315 uses
Stainless steel production.
In the present embodiment, heating furnace 31 includes the furnace shell for surrounding burner hearth 311, and the top of burner hearth 311 and four peripheral portions are pacified
Equipped with several heating rods 316 being parallel to each other and uniform intervals are arranged, several heating rods 316 and burner hearth 311 on 311 top of burner hearth
Several heating rods 316 of four peripheral portions are parallel to each other and uniform intervals are arranged, can be improved the uniformity of temperature in burner hearth 311,
And then the temperature uniformity after treating the heating of test sample plate is improved, and can also adjust the power of each heating rod 316, it realizes to burner hearth
The control of local temperature in 311.Preferably, the heating rod 316 on 311 top of burner hearth is fixedly mounted on burner hearth 311 by suspension hook
On roof, heating rod 316 is vacantly arranged, and can further increase the uniformity of temperature in burner hearth 311.
In the present embodiment, burner hearth 311 is equipped with several temperature sensors 317 for temperature in burner hearth 311, and several temperature pass
Sensor 317 is evenly arranged in the surface of fire door 312.Temperature sensor 317 can temperature in real-time detection burner hearth 311, be convenient for
With controller cooperation realize temperature in burner hearth 311 is precisely controlled, and if dry temperature sensor 317 be evenly arranged in fire door
312 surface, when treating test sample plate and being heated, if dry temperature sensor 317 just detects each region above template to be measured
Temperature, convenient for understanding the temperature of template upper surface to be measured everywhere in real time.
In the present embodiment, heating furnace 31 is lifted on the driving end of manipulator 32 and makes fire door in 31 moving process of heating furnace
312 keep downwards, when guaranteeing that manipulator 32 drives heating furnace 31 mobile, workpiece cushion cap 2 can essence it is metastable by down toward
On protrude into fire door 312.Preferably, it withholds in the setting of heating furnace 31, is detachably connected by withholding with manipulator 32, it is convenient to add
The handling and maintenance of hot stove 31.
In the present embodiment, the horizontal cross-section of fire door 312 is consistent with the geomery of the horizontal cross-section of workpiece cushion cap 2, in work
Just fire door 312 is closed when part cushion cap 2 protrudes into fire door 312, can avoid workpiece cushion cap 2 influences with fire door 312 there are gap
Heating uniformity, and can avoid thermal loss, achieve the purpose that save energy consumption.
In the present embodiment, manipulator 32 uses four commercially available axis palletizing mechanical arms, have accurate positioning, mobile accuracy it is high,
The advantages that movement speed is fast, stability is good is widely used in various industrial occasions material carryings, stacking etc..In other embodiments
In, the traveling crane structure in existing workshop also can be used in manipulator 32, or use the incidence angle regulating device 1 of the present embodiment
Vertical plane automatic displacement component, as long as the movement that heating furnace 31 can be driven to move or move in perpendicular in three-dimensional space
Device.
A kind of reflectance test system using the present embodiment carries out the test method of reflectance test, packet to absorbing material
Include following steps:
(A) template to be measured is placed on workpiece cushion cap 2, drives heating furnace 31 to be moved to workpiece cushion cap by manipulator 32
Then 2 top drives 31 descending motion of heating furnace, so that workpiece cushion cap 2 is protruded into the fire door 312 of heating furnace 31, workpiece is held at this time
Template to be measured on platform 2 is located in burner hearth 311；
(B) unlatching heating furnace 31 is treated test sample plate and is heated, until when template temperature to be measured reaches set temperature, heat preservation
At least 15 minutes；
(C) 31 ascending motion of heating furnace is driven by manipulator 32, workpiece cushion cap 2 is made to exit fire door 312, then driving adds
Hot stove 31 moves to the position far from workpiece cushion cap 2, makes heating furnace 31 will not the test of noisy reflection rate；
(D) vertical and horizontal movement is done to antenna 4 is penetrated by the driving of incidence angle regulating device 1 in perpendicular, is made pair
It penetrates antenna 4 and moves to scheduled test position along the default arching trajectory with workpiece cushion cap 2 for the center of circle, while passing through rotation driving
The driving of part 103 is rotated around horizontal axis to penetrating antenna 4, is made to be directed toward workpiece cushion cap 2 to penetrating antenna 4, is opened and carry out instead to penetrating antenna 4
Penetrate rate test.
The test method not only has the advantages that aforementioned reflectance test system is had, and its step is simple, operation letter
Just.
In above-mentioned test method, it is preferred that the bottom surface of burner hearth 311 and the upper surface of workpiece cushion cap 2 are horizontal plane, step
Suddenly in (A), workpiece cushion cap 2 protrudes into the depth of the fire door 312 of heating furnace 31 are as follows: the bottom surface of burner hearth 311 and the upper table of workpiece cushion cap 2
Face is concordant.Since workpiece cushion cap 2 does not protrude into burner hearth 311, the workpiece cushion cap 2 that can weaken low temperature significantly is equal to temperature in burner hearth 311
The influence of even property can also reduce workpiece cushion cap 2 and absorb heat, improve to improve the temperature uniformity that template to be measured is heated
The heating efficiency of template to be measured, and be conducive to reduce 311 size of burner hearth, achieve the purpose that improve structural compactness and reduce cost.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example.To those of ordinary skill in the art, obtained improvement and change in the case where not departing from the technology of the present invention concept thereof
It changes and also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of reflectance test system of absorbing material, including incidence angle regulating device (1), workpiece cushion cap (2) and to penetrating day
Line (4), it is characterised in that: the incidence angle regulating device (1) includes bracket (101), cantilever (102) and rotary drive
(103), the cantilever (102) is mounted on bracket (101) by a vertical plane automatic displacement component and can be by vertical plane automatic displacement
Component driver moves in perpendicular, and the rotary drive (103) is mounted on cantilever (102), and described pair is penetrated antenna (4)
It is connected with the driving end of rotary drive (103) and can be driven by rotary drive (103) and is rotated around horizontal axis.
2. reflectance test system according to claim 1, it is characterised in that: the vertical plane automatic displacement component includes sliding
First slide (104) on bracket (101) and the second slide (105) being slidedly arranged on first slide (104), described first
The glide direction of slide (104) and second slide (105) is parallel with perpendicular, and the sliding of the first slide (104)
Perpendicular to the glide direction of second slide (105), the cantilever (102) is mounted on second slide (105) in direction, the vertical plane
Automatic displacement component further include for drive first slide (104) slide the first sliding drive mechanism (106) and for driving
The second sliding drive mechanism (107) of second slide (105) sliding.
3. reflectance test system according to claim 2, it is characterised in that: first sliding drive mechanism (106)
With the ball of gear and rack teeth mechanism or servo motor driving that second sliding drive mechanism (107) is servo motor driving
Screw body.
4. reflectance test system according to claim 3, it is characterised in that: the servo motor have when power is off into
The band brake apparatus of row braking.
5. reflectance test system according to any one of claim 1 to 4, it is characterised in that: the reflectance test
System is additionally provided with heating device (3), and the heating device (3) includes manipulator (32) and the heating furnace with burner hearth (311)
(31), the burner hearth (311) has the fire door (312) of downwardly facing opening, and the manipulator (32) is connected with heating furnace (31) and can
Driving heating furnace (31) is mobile so that workpiece cushion cap (2) protrudes into the fire door (312) or exits workpiece cushion cap (2) and separate
The fire door (312).
6. reflectance test system according to claim 5, it is characterised in that: the bottom surface of the burner hearth (311) is level
Face, the opening size of the fire door (312) is less than the bed-plate dimension of burner hearth (311), and the fire door (312) is located at the burner hearth
(311) middle position of bottom surface；The heating furnace (31) is lifted on the driving end of manipulator (32) and moves heating furnace (31)
Fire door (312) is kept downwards during dynamic.
7. reflectance test system according to claim 5, it is characterised in that: the furnace wall of the heating furnace (31) include by
Thermal insulation layer (313), insulating layer (314) and the shell (315) arranged from inside to outside, the thermal insulation layer (313) is by ceramic composite
Covering and aeroge are constituted, and the insulating layer (314) is made of fiber insulation board and fiber thermal insulation cotton.
8. reflectance test system according to claim 5, it is characterised in that: the heating furnace (31) is described including surrounding
The furnace shell of burner hearth (311), the top and four peripheral portions of the burner hearth (311) are mounted on several be parallel to each other and uniform intervals cloth
The heating rod (316) set；The burner hearth (311) is equipped with several for detecting the temperature sensor of burner hearth (311) interior temperature
(317), several temperature sensors (317) are evenly arranged in the surface of fire door (312).
9. a kind of test method for carrying out reflectance test to absorbing material using reflectance test system described in claim 5,
It is characterized by comprising following steps:
(A) template to be measured is placed on workpiece cushion cap (2), workpiece is moved to by manipulator (32) driving heating furnace (31) and is held
The top of platform (2) then drives heating furnace (31) descending motion, workpiece cushion cap (2) is made to protrude into the fire door of heating furnace (31)
(312), the template to be measured at this time on workpiece cushion cap (2) is located in burner hearth (311)；
(B) unlatching heating furnace (31) is treated test sample plate and is heated, until heat preservation is extremely when template temperature to be measured reaches set temperature
It is 15 minutes few；
(C) heating furnace (31) ascending motion is driven by manipulator (32), so that workpiece cushion cap (2) is exited fire door (312), then drives
Dynamic heating furnace (31) move to the position far from workpiece cushion cap (2)；
(D) vertical and horizontal movement is done to antenna (4) is penetrated by incidence angle regulating device (1) driving in perpendicular, is made pair
It penetrates antenna (4) and moves to scheduled test position along with the default arching trajectory that workpiece cushion cap (2) are the center of circle, while passing through rotation
Actuator (103) driving to penetrate antenna (4) around horizontal axis rotate, make to penetrate antenna (4) be directed toward workpiece cushion cap (2), open pair
It penetrates antenna (4) and carries out reflectance test.
10. test method according to claim 9, it is characterised in that: the bottom surface of the burner hearth (311) and workpiece cushion cap
(2) upper surface is horizontal plane, and in the step (A), workpiece cushion cap (2) protrudes into the depth of the fire door (312) of heating furnace (31)
Degree are as follows: the bottom surface of the burner hearth (311) is concordant with the upper surface of workpiece cushion cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623286.3A CN109507212B (en) | 2018-12-28 | 2018-12-28 | System and method for testing reflectivity of wave-absorbing material |
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|---|---|---|---|
| CN201811623286.3A CN109507212B (en) | 2018-12-28 | 2018-12-28 | System and method for testing reflectivity of wave-absorbing material |
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| CN109507212B CN109507212B (en) | 2021-06-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111272778A (en) * | 2020-03-09 | 2020-06-12 | 北京环境特性研究所 | Automatic switching type reflectivity test support and test method |
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| CN112216952A (en) * | 2020-10-13 | 2021-01-12 | 南京英飞达自动化设备有限公司 | Arch frame device for detecting reflectivity of wave-absorbing material and detection method thereof |
| CN114136997A (en) * | 2021-12-01 | 2022-03-04 | 北京环境特性研究所 | Plate reflectivity test system |
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