CN108974398A - A kind of multi-angle atomic oxygen test on-Line Monitor Device and monitoring method - Google Patents
A kind of multi-angle atomic oxygen test on-Line Monitor Device and monitoring method Download PDFInfo
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- CN108974398A CN108974398A CN201811087657.0A CN201811087657A CN108974398A CN 108974398 A CN108974398 A CN 108974398A CN 201811087657 A CN201811087657 A CN 201811087657A CN 108974398 A CN108974398 A CN 108974398A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G7/00—Simulating cosmonautic conditions, e.g. for conditioning crews
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Abstract
The invention discloses a kind of multi-angle atomic oxygen test on-Line Monitor Device and monitoring methods, which includes: test cabin；Atom Oxygen Generator and control system, it includes: atom Oxygen Generator and atom Oxygen Generator control system；Frequency testing system, it includes: frequency detection systems and frequency reception system；Mechanical course and piezoelectric system, it includes: Bit andits control mechanism, thickness monitoring platform, test specimen, temperature control console and vibrational feedback control；Vacuum system；Support platform, and, thickness monitoring system.Multi-angle atomic oxygen test on-Line Monitor Device of the invention and monitoring method can effectively solve the relationship that test specimen during atomic oxygen ground test degrades situation Yu elemental oxygen fluence；Reduce test and go out tank weighing detection in the process, avoids procedural test error, improve atomic oxygen test the data precision, realize and multi-angle atomic oxygen erosion is monitored on-line, advance the research and development, application and development progress of space product.
Description
Technical field
The present invention relates to the spacecraft space atomic oxygen environment performance test fields of long-life, low orbit specifically to relate to
And a kind of multi-angle atomic oxygen test on-Line Monitor Device and method.
Background technique
LEO (LEO) refers to height in the track of 200km~700km, due to the higher speed of service of spacecraft and
The biggish oxidisability of elemental oxygen, the spacecraft outer surface exposed material of this orbit space all can be by the serious prestige of elemental oxygen
The side of body.Space flight test for studying the atomic oxygen effects of aerospace material, major function during test material in-orbit life-span and
The variation of performance has impayable advantage, but flight test cost is high, it is few to carry chance, therefore, ground simulation test
Still there is extremely important realistic meaning.
It claims for this to atomic oxygen ground test test method and elemental oxygen on-line monitoring.The patent of Li Tao " is used for
The test method of the anti-atomic oxygen performance of long-life Spacecraft Material ", to test specimen processing, vacuum, temperature control etc.
It is proposed innovative design.The sea Zheng Kuo article " Low Earth Orbit spacecraft difference angle of attack atomic oxygen flux density computation model " uses
Programming method calculates atomic oxygen flux density.Jiang Haifu patent " space flight metal v-belt barrier material fragment
With action of atomic oxygen test method ", it proposes to the performance degradation shape under barrier material space junk and atomic oxygen environment
Condition appraisal procedure." a kind of elemental oxygen fluence measurement method and atomic oxygen sensor " of Yang Sheng victory, using being based on Hui Sidun
The method of electric bridge carries out atomic oxygen flux measurement, but this method is more sensitive for temperature environment.
However, having no to multi-angle atomic oxygen test on-Line Monitor Device and method, the elemental oxygen simulation that ground uses is set
It is standby to can be mainly divided into heat plasma figure and orientation beam pattern two major classes.The atomic oxygen test mechanism of current majority products is still not
Clearly, and there is randomness in test process.Ground identical with the space LEO real atoms oxygen environment can not developed
Under the premise of analog machine, researcher's method substantially all equivalent using effect.But ground accelerated test bring and reality
A series of differences of space environment, may influence whether the equivalence of atomic oxygen effects.This species diversity mainly includes following
Aspect:
1. ground accelerated test can only simulate vertical angle；
2. existing to sample and affecting it is possible that test is interrupted in ground experiment；
3. causing test specimen to destroy when it is possible that weighing in ground experiment；
4. there are the integrated environments such as high/low temperature, irradiation in space.
So far, atomic oxygen ground simulation test not yet forms compulsory standard test code, this directly results in atom
Testing crew is not selected in different test methods and experimental condition in oxygen experimental test.Even sophisticated
Researcher, different test processes may also influence whether the repeatability and validity of test result.
Summary of the invention
The purpose of the present invention is devise a kind of on-line monitoring dress to solve the problems, such as that atomic oxygen ground test is monitored on-line
It sets, for ground elemental oxygen simulation test, the atomic oxygen erosion of different angle is monitored on-line.
In order to achieve the above object of the invention, the present invention provides a kind of multi-angle atomic oxygen test on-Line Monitor Device,
Include:
Test cabin；
The atom Oxygen Generator and control system being mounted in test cabin, it includes: atom Oxygen Generator and elemental oxygen
Generator control system；
The frequency testing system being mounted in test cabin, it includes: frequency detection systems and frequency reception system；
The Mechanical course and piezoelectric system being mounted in test cabin, it includes: Bit andits control mechanism, thickness monitoring are flat
Platform, test specimen, temperature control console and vibrational feedback control；
The vacuum system being connected to test cabin；
For the support platform of fixed test cabin, and
Pass through the thickness monitoring system wirelessly or non-wirelessly connecting with frequency testing system, Mechanical course and piezoelectric system.
Preferably, the thickness monitoring system can be by monitoring test specimen thickness change situation on-line, and then tried
It tests sample atoms oxygen and degrades rear thickness change situation Δ d: Δ d=d0- d, wherein d0For the original depth of test specimen, d is examination
Test the real-time thickness of sample on-line monitoring.
The frequency of test specimen is supervised preferably, the Mechanical course and piezoelectric system use piezoceramic material
It surveys, and then obtains the real-time thickness d of test specimen,Wherein, f is the resonance frequency of measurement, and E is test
The synthetical elastic modulus of sample, L are the hanging zone length of test specimen, and ρ is the combined density of test specimen.
Preferably, the Bit andits control mechanism of the Mechanical course and piezoelectric system is able to achieve 0 °~90 ° of test specimen
Rotation.
Preferably, the on-line monitoring and the temperature control console of control system can control the temperature of test specimen, temperature
Control range is spent at -180 DEG C~+200 DEG C.
The present invention also provides a kind of according to above-mentioned multi-angle atomic oxygen test on-line monitoring method, it includes:
Step 1, makes test specimen, and clamped overhanging portion length is L, width b, with a thickness of d0；
Step 2 installs test specimen, so that test specimen is between thickness monitoring platform and temperature control console, with vibration
Feedback control forms Mechanical course and piezoelectric system；
Mechanical course and piezoelectric system are installed in atomic oxygen test cabin by step 3；
Step 4 closes test cabin, vacuumizes, reach 10-3Pa is hereinafter, pass through Bit andits control institutional adjustment test specimen
The angle of surface and atom Oxygen Generator reaches setting value；
Step 5 before test, is detected by thickness of the thickness monitoring system to test specimen, thickness before record is tested
Data d0；
Step 6, opens atom Oxygen Generator and control system starts to test, and measures the real-time thickness d of test specimen；
Step 7, calculated thickness changing value Δ d: Δ d=d-d0, flux is added up to elemental oxygen and is converted, is set
The accumulative flux of elemental oxygen under angle.
Preferably, obtaining the real-time thickness d of test specimen by the thickness monitoring system monitoring in step 6.It is logical
Thickness monitoring system is crossed, realizes the on-line monitoring to sample by means of atomic oxygen test equipment.
Preferably, a layer of piezo-electric material is equipped in test specimen lower surface, in step 1 with a thickness of dx, and dxMuch
Less than d0。
Preferably, the Mechanical course and piezoelectric system pass through piezoceramic material to the frequency of test specimen in step 6
Rate is monitored, and then obtains the real-time thickness d of test specimen,Wherein, f is the resonance frequency of measurement, E
For the synthetical elastic modulus of test specimen, L is the hanging zone length of test specimen, and ρ is the combined density of test specimen.
Preferably, in step 6, using the on-line monitoring and the temperature control console of control system to test specimen temperature into
Row control, temperature controlling range is at -180 DEG C~+200 DEG C.
Multi-angle atomic oxygen test on-Line Monitor Device of the invention and monitoring method can effectively solve ground elemental oxygen
Test specimen degrades the relationship of situation Yu elemental oxygen fluence during test；Reduce test and goes out tank weighing detection in the process
Link avoids procedural test error, improves atomic oxygen test the data precision, realizes online to multi-angle atomic oxygen erosion
Monitoring, advances the research and development, application and development progress of space product.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is a kind of multi-angle atomic oxygen test on-Line Monitor Device provided by the invention.
Fig. 2 is a kind of multi-angle atomic oxygen test Mechanical course provided by the invention and piezoelectric system and test cabin installation
Schematic diagram.
Fig. 3 is Mechanical course and piezoelectric system schematic diagram in a kind of multi-angle atomic oxygen test provided by the invention.
Fig. 4 is test specimen and Mechanical course in a kind of multi-angle atomic oxygen test on-Line Monitor Device provided by the invention
And piezoelectric system assembling schematic diagram.
Fig. 5 is a kind of atomic oxygen test sample topography size provided by the invention and clamped interface specification.
Specific embodiment
Referring to the attached drawing of the embodiment of the present invention, the present invention is described in more detail.However, the present invention can be with many
Different form is realized, and should not be construed as being limited by the embodiment herein proposed.On the contrary, propose these embodiments be in order to
Reach abundant and complete disclosure, and those skilled in the art is made to understand the scope of the present invention completely.In these attached drawings,
For clarity, the size and relative size in layer and region be may be exaggerated.
Now by the way that preferred embodiment according to the present invention is described in detail, to be further elaborated to the present invention.
It as shown in Figure 1 and Figure 2, is a kind of multi-angle atomic oxygen test on-Line Monitor Device of the embodiment of the present invention, including original
Sub- Oxygen Generator and control system, frequency testing system, Mechanical course and piezoelectric system 3, test cabin 4, vacuum system 5, branch
Support platform 6 and thickness monitoring system 7 etc..
The atom Oxygen Generator and control system are by atom Oxygen Generator 1-1 and atom Oxygen Generator control system 1-2
Composition.
The frequency testing system is made of frequency detection systems 2-1 and frequency reception system 2-2, the frequency detection systems
2-1 is used for the frequency of detection test sample；The frequency reception system 2-2 is transferred at thickness monitoring system 7 after receiving said frequencies
Reason, by the real-time thickness that can be calculated test specimen.
The Mechanical course and piezoelectric system 3 by Bit andits control mechanism 3-1, thickness monitoring platform 3-2, temperature control console 3-3,
Vibrational feedback controls 3-4 and test specimen 3-5 composition, as shown in Figure 3.The thickness monitoring platform 3-2 is used for clamp assay
Sample determines the clamped interface of sample and overhanging portion length.The temperature control console 3-3 is for testing process temperature control.Described
Vibrational feedback control 3-4 is a part of Mechanical course, for improving Mechanical course precision.
Realize that a kind of specific work steps of multi-angle atomic oxygen test on-line monitoring method of the invention is as follows:
Step 1 makes test specimen 3-5, and size is usually strip.Wherein, the overhanging portion length of clamped interface
For L, width is b (for calculating effective area when test, e.g., S=L*b), with a thickness of d0, L0It is test specimen outer dimension.
The lower surface test specimen 3-5 has a layer of piezo-electric material (e.g., piezoceramic material), with a thickness of dx, wherein dxFar smaller than d0
(preferably, dx: d0=0.01~0.1:1), see Fig. 5.The piezoelectric material can be with feedback vibration signal, with electric signal transmission, thickness
Much smaller than d0It is to reduce piezoelectric material to interfere the resonance of test specimen.Clamped interface is the interface installed for test specimen,
Wherein clamped end is installed on thickness monitoring platform, is not involved in atomic oxygen test；The hanging region of sample is not fixed, and is exposed to atom
Under oxygen line environment.
Step 2, test specimen 3-5 installation: test specimen 3-5 be located at thickness monitoring platform 3-2 and temperature control console 3-3 it
Between, Mechanical course and piezoelectric system 3 are formed with vibrational feedback control 3-4, sees Fig. 4.
Mechanical course and piezoelectric system 3 are installed in atomic oxygen test cabin 4 by step 3.
Step 4 closes atomic oxygen test cabin 4, vacuumizes, reach 10-3Pa hereinafter, the Adjustment Tests surface sample 3-5 with
The angle of atom Oxygen Generator 1-1 reaches setting value.Wherein, Mechanical course and the Bit andits control mechanism 3-1 of piezoelectric system 3 can be with
Realize 0 °~90 ° rotations.
Step 5 can detect test specimen 3-5 thickness by thickness monitoring system 7 before test, before record test
Thickness data d0.It opens atom Oxygen Generator and control system starts to test.Under a certain angle, pass through frequency detection systems 2-
1 and frequency reception system 2-2 is monitored test specimen 3-5, obtains test specimen 3-5 under a certain atomic oxygen erosion flux
Frequency f, by thickness monitoring system 7 obtain test specimen 3-5 change value of thickness Δ d (thickness d monitored in experiment,Δ d=d-d0), test specimen 3-5 thickness change can be recorded in real time during test.Pass through
Atomic oxygen test result is monitored in the realization of test specimen thickness change situation on-line.
Test process can carry out temperature control to test specimen, and temperature control capability reaches -180 DEG C~+200 DEG C.
Experiment it has been proved that the present invention by thickness monitoring system 7 to test specimen 3-5 real-time perfoming detect, tried
The variation of thickness of sample is tested, and then is converted to elemental oxygen fluence, according to Du Pont HN type polyimide material elemental oxygen
Denudation coefficient a:3 × 10-24cm3/ atom obtains fluence (flux Q=the Δ d × s/a, s of the elemental oxygen under set angle
For the area of test specimen, s=L*b).
The present invention can effectively solve that test specimen during atomic oxygen ground test degrades situation and elemental oxygen accumulation is logical
The relationship of amount；Reduce test and go out tank weighing detection in the process, avoids procedural test error, improve atomic oxygen test
The data precision realizes and monitors on-line to multi-angle atomic oxygen erosion, advance the research and development of space product, application and develop into
Degree.
A kind of multi-angle atomic oxygen test on-Line Monitor Device and method provided by the present invention, will for space material
Face atomic oxygen test environmental simulation provides effective workaround.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.For
For those skilled in the art, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from the present invention
Spirit or essential attributes in the case where, the present invention can be realized in other specific forms.Which point therefore, no matter come from
See, the present embodiments are to be considered as illustrative and not restrictive, the scope of the present invention by appended claims without
It is that above description limits, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in
In the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a kind of multi-angle atomic oxygen test on-Line Monitor Device, which is characterized in that the device includes:
Test cabin；
The atom Oxygen Generator and control system being mounted in test cabin, it includes: atom Oxygen Generator and elemental oxygen occur
Device control system；
The frequency testing system being mounted in test cabin, it includes: frequency detection systems and frequency reception system；
The Mechanical course and piezoelectric system being mounted in test cabin, it includes: Bit andits control mechanism, thickness monitoring platform, examination
Test sample, temperature control console and vibrational feedback control；
The vacuum system being connected to test cabin；
For the support platform of fixed test cabin, and
Pass through the thickness monitoring system wirelessly or non-wirelessly connecting with frequency testing system, Mechanical course and piezoelectric system.
2. multi-angle atomic oxygen test on-Line Monitor Device as described in claim 1, which is characterized in that the thickness monitoring system
System can be by on-line monitoring test specimen thickness change situation, and then obtains test specimen elemental oxygen and degrade rear thickness change situation
Δ d: Δ d=d0- d, wherein d0For the original depth of test specimen, d is the real-time thickness of test specimen on-line monitoring.
3. multi-angle atomic oxygen test on-Line Monitor Device as described in claim 1, which is characterized in that the Mechanical course and
Piezoelectric system uses piezoelectric material layer and is monitored to the frequency of test specimen, and then obtains the real-time thickness d of test specimen,Wherein, f is the resonance frequency of measurement, and E is the synthetical elastic modulus of test specimen, and L is test specimen
Hanging zone length, ρ are the combined density of test specimen.
4. multi-angle atomic oxygen test on-Line Monitor Device as described in claim 1, which is characterized in that the Mechanical course
And the Bit andits control mechanism of piezoelectric system is able to achieve 0 °~90 ° rotations of test specimen.
5. multi-angle atomic oxygen test on-Line Monitor Device as described in claim 1, which is characterized in that it is described on-line monitoring and
The temperature control console of control system can control the temperature of test specimen, and temperature controlling range is at -180 DEG C~+200 DEG C.
6. a kind of multi-angle atomic oxygen test on-line monitoring method, feature described in any one of -5 according to claim 1
It is, this method includes:
Step 1, makes test specimen, and clamped overhanging portion length is L, width b, with a thickness of d0；
Step 2 installs test specimen, so that test specimen is between thickness monitoring platform and temperature control console, with vibrational feedback
Control forms Mechanical course and piezoelectric system；
Mechanical course and piezoelectric system are installed in atomic oxygen test cabin by step 3；
Step 4 closes test cabin, vacuumizes, reach 10-3Pa is hereinafter, pass through Bit andits control institutional adjustment test specimen surface
Reach setting value with the angle of atom Oxygen Generator；
Step 5 before test, is detected by thickness of the thickness monitoring system to test specimen, thickness data before record is tested
d0；
Step 6, opens atom Oxygen Generator and control system starts to test, and measures the real-time thickness d of test specimen；
Step 7, calculated thickness changing value Δ d: Δ d=d-d0, flux is added up to elemental oxygen and is converted, is obtained under set angle
Elemental oxygen accumulative flux.
7. multi-angle atomic oxygen test on-line monitoring method as claimed in claim 6, which is characterized in that in step 6, pass through
The thickness monitoring system monitoring obtains the real-time thickness d of test specimen.
8. multi-angle atomic oxygen test on-line monitoring method as claimed in claim 6, which is characterized in that in step 1, trying
It tests sample lower surface and one layer of piezo-electric material is installed, with a thickness of dx, and dxFar smaller than d0。
9. multi-angle atomic oxygen test on-line monitoring method as claimed in claim 8, which is characterized in that described in step 6
Mechanical course and piezoelectric system are monitored by frequency of the piezoceramic material to test specimen, and then obtain test specimen
Real-time thickness d,Wherein, f is the resonance frequency of measurement, and E is the synthetical elastic modulus of test specimen, and L is
The hanging zone length of test specimen, ρ are the combined density of test specimen.
10. multi-angle atomic oxygen test on-line monitoring method as claimed in claim 6, which is characterized in that in step 6, use
The on-line monitoring and the temperature control console of control system control test specimen temperature, temperature controlling range -180 DEG C~
+200℃。
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| CN201811087657.0A CN108974398B (en) | 2018-09-18 | 2018-09-18 | Multi-angle atomic oxygen test online monitoring device and monitoring method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201133900Y (en) * | 2007-12-04 | 2008-10-15 | 北京卫星环境工程研究所 | System for measuring space atomic oxygen environmental simulation experiment VUV |
| CN102175665A (en) * | 2011-02-11 | 2011-09-07 | 哈尔滨工业大学 | Experiment device for simulating atomic oxygen oxidation ground of super-high temperature heat-protection material |
| CN102706312A (en) * | 2012-06-29 | 2012-10-03 | 北京卫星环境工程研究所 | Testing system for elemental oxygen scattering angle distribution and erosion ratio measurement |
| US20140130825A1 (en) * | 2012-11-09 | 2014-05-15 | Tokyo Electron Limited | Substrate cleaning method and system using atmospheric pressure atomic oxygen |
| CN107024496A (en) * | 2017-03-29 | 2017-08-08 | 北京卫星环境工程研究所 | Spacecraft Material elemental oxygen and heat cycle effect test method |
-
2018
- 2018-09-18 CN CN201811087657.0A patent/CN108974398B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201133900Y (en) * | 2007-12-04 | 2008-10-15 | 北京卫星环境工程研究所 | System for measuring space atomic oxygen environmental simulation experiment VUV |
| CN102175665A (en) * | 2011-02-11 | 2011-09-07 | 哈尔滨工业大学 | Experiment device for simulating atomic oxygen oxidation ground of super-high temperature heat-protection material |
| CN102706312A (en) * | 2012-06-29 | 2012-10-03 | 北京卫星环境工程研究所 | Testing system for elemental oxygen scattering angle distribution and erosion ratio measurement |
| US20140130825A1 (en) * | 2012-11-09 | 2014-05-15 | Tokyo Electron Limited | Substrate cleaning method and system using atmospheric pressure atomic oxygen |
| CN107024496A (en) * | 2017-03-29 | 2017-08-08 | 北京卫星环境工程研究所 | Spacecraft Material elemental oxygen and heat cycle effect test method |
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