CN205748706U - A kind of dynamic high-pressure based on reflectance loads lower material temperature and measures system - Google Patents
A kind of dynamic high-pressure based on reflectance loads lower material temperature and measures system Download PDFInfo
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- CN205748706U CN205748706U CN201620606480.0U CN201620606480U CN205748706U CN 205748706 U CN205748706 U CN 205748706U CN 201620606480 U CN201620606480 U CN 201620606480U CN 205748706 U CN205748706 U CN 205748706U
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Abstract
The utility model discloses a kind of dynamic high-pressure based on reflectance and load lower material temperature measurement system, including dynamic high-pressure charger, described dynamic high-pressure charger connects test experiments target sample, test experiments target sample connects has reflective light intensity to change test system, reflective light intensity change test system connects synchronizer trigger, and synchronizer trigger is connected with dynamic high-pressure charger.Use this utility model can obtain the dynamic temperature data of metal material under quasi-constant entropy loading environment, and the transient temperature data of low-temperature zone (below 1000K) metal material under the conditions of impact compress, realize material physical state and accurate characterization of materials behavior change physical process under dynamic high-pressure loads, for Calibration Theory state equation model effectiveness and the offer Important Parameters of establishment complete state equation.
Description
Technical field
This utility model belongs to the measurement system of optical field, is specifically related under the loading of a kind of dynamic high-pressure based on reflectance
Material temperature measures system.
Background technology
Temperature is to characterize an Important Parameters of Material Thermodynamics state.From the material developed rapidly in recent years quasi-constant entropy pressure
From the point of view of contracting progress, the disappearance of temperature data is to restrict its experimental data for state equation and the important barrier of constitutive relation
Hinder.Quasi isentropic compression is tested by the measurement to different-thickness sample surfaces speed, provides stress-strain relation and preferable constant entropy
Difference between line mainly includes two parts: deviatoric stress part and in a small amount entropy increase the hydrostatic pressing increase part caused, but both
Cannot separate, and along with the increase of strain rate, the proportion of Section 2 can increase, cause quasi-insentrope both cannot accurately provide by force
Degree information also cannot accurately provide state equation information.If but solving the temperature survey problem under quasi-constant entropy loads, then
Likely combine Cv model and provide this reasonable distribution of two, thus provide intensity and state equation information more accurately.Meanwhile,
In the material high pressure equation of state research carried out by Impulsive load mode, low-temperature zone (being often referred to below 1000K) temperature
Transient state accurately measures always one difficult point, and the Planck peak of radiation spectrum is even far infrared in ultrared, and radiant power is extremely low, quilt
Dynamic measurement technology signal to noise ratio is extremely difficult to requirement when dynamic high-pressure loads differentiated time resolution and temperature.Therefore, actively find,
Development or improvement can realize under dynamic high-pressure, low-temperature zone (below 1000K) temperature measurement technology or method, are still material so far and move
One of focus work in high pressure research field.
Radiant thermometric technology range of application in material dynamic high-pressure loads is mainly at 2000K to 10000K, at this model
The thermodynamic temperature of material can be preferably obtained, due to electronics, the relaxation time of ion in higher temperature range in enclosing
Change, and the appearance of ultraviolet disaster, the difference of the electron temperature that radiometric temperature measurement result is given and macroscopic thermodynamics temperature
Different more and more obvious, but can also accept at below 10ev.Additionally, the temperature survey that metal sample is under Impulsive load except on
State beyond problem, there is also the serious restriction of two other factor: one when being the situation for measuring surface is the scope of freedom, measures
Radiation temperature is nearly all the temperature after impact unloading, and wanting the state of temperature before providing unloading needs high time resolution energy
Power；Two is for the metering system by increasing window, in addition it is also necessary to know sample and the window heat biography under Impulsive load state
Lead the information such as coefficient, interface emissivity.
Utility model content
For solving under quasi isentropic compression and impact compress low-temperature zone (below 1000K) both dynamic high-pressure loading environments
Material temperature measure problem, obtain the dynamic temperature data under quasi-constant entropy loading environment and the transient state temperature under the conditions of impact compress
Degrees of data, this utility model devises a kind of dynamic high-pressure based on reflectance and loads lower material temperature measurement system, this system energy
Enough obtain the dynamic temperature data under quasi-constant entropy loading environment and the transient temperature data under the conditions of impact compress, solve standard etc.
Material temperature under entropic spueezing and impact compress low-temperature zone (below 1000K) both dynamic high-pressure loading environments measures problem.
This utility model is achieved through the following technical solutions:
A kind of dynamic high-pressure based on reflectance loads lower material temperature and measures system, including dynamic high-pressure charger, described
Dynamic high-pressure charger connects test experiments target sample, and test experiments target sample connects has reflective light intensity to change test system,
Reflective light intensity change test system connects synchronizer trigger, and synchronizer trigger is connected with dynamic high-pressure charger.For solving
Material temperature under quasi isentropic compression and impact compress low-temperature zone both dynamic high-pressure loading environments is measured, and obtains quasi-constant entropy and adds
Dynamic temperature data under the conditions of load and the transient temperature data under the conditions of impact compress, not only to accurate characterization material at dynamic height
Physical state under pressure loading and research material state change physical process important in inhibiting, simultaneously in view of materials behavior side
Journey feature highstrung to temperature parameters can be also Calibration Theory state equation model effectiveness and establishes complete state
The offer Important Parameters of equation.At present, from the point of view of the document of open report both at home and abroad, do not solve the technology of this problem, and this
Scheme, by actively applying detection light beam, is measured under dynamic high-pressure loading environment, between testing sample material and window material
The reflective light intensity change of metallic diaphragm material, is calculated reflectance delta data, recycling metallic diaphragm material reflectance with
Temperature Scaling relation data, it is achieved the temperature survey of material under dynamic high-pressure loading environment, obtains moving under quasi-constant entropy loading environment
Transient temperature data under the conditions of state temperature data and impact compress.
Test experiments target sample is mainly made up of testing sample material, metallic diaphragm material and window material, metal film
Layer material is arranged between testing sample material and window material, and three fits tightly, and testing sample material is arranged on gold
Belonging between film material and dynamic high-pressure charger, window material is arranged on metallic diaphragm material and reflective light intensity change test is
Between system.Metallic diaphragm material is plated on window material, and window material preferred window glass, metal membrane material reflectance with
The calibration data of temperature have unique corresponding relation.
Reflective light intensity change test system is mainly by detecting laser, beam splitter, bonder, collimator, photodetector
Constituting with data acquiring and recording memory, beam splitter is arranged between bonder and window material, is provided with in beam splitter side
Fibre-optical splice, is provided with optical fiber between fibre-optical splice and bonder, between fibre-optical splice and collimator, optical fiber is respectively with corresponding
Fibre-optical splice, bonder or collimator connect, bonder and detecting laser connect, and collimator and photodetector connect,
Photodetector and data acquiring and recording memory connect, and data acquiring and recording memory and synchronizer trigger connect.Measure
Device is the photodetector with nanosecond order response, and data acquiring and recording memory is preferably high-performance oscillograph.Dynamic height
Pressure loads the signal of telecommunication of zero moment output, produces signal of telecommunication triggering photodetector by synchronizer trigger and carries out synchro measure.
Dynamic high-pressure is loaded the signal of telecommunication of zero moment output and is triggered by synchronizer trigger, starts to measure reflective light intensity at photodetector and becomes
While changing signal, the variable signal data that data acquiring and recording memory synchronous acquisition record is corresponding.
Further, the exploring laser light bundle that detecting laser produces acts perpendicularly to metallic diaphragm material list after beam splitter
Face, the light intensity of its reflection light beam is changed to vertical angle state；The exploring laser light bundle that detecting laser produces simultaneously is at metal film
Material effects position is its geometric center point.
This utility model compared with prior art, has such advantages as and beneficial effect: use this utility model to obtain
Take the dynamic temperature data of metal material under quasi-constant entropy loading environment, and low-temperature zone (below 1000K) under the conditions of impact compress
The transient temperature data of metal material, it is achieved material is physical state and materials behavior change physical process under dynamic high-pressure loads
Accurate characterization, for Calibration Theory state equation model effectiveness and establish complete state equation offer Important Parameters.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the one of the application
Part, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:
Fig. 1 is test system schematic of the present utility model；
Gold membrane material reflectance and the calibration relation of temperature when Fig. 2 is detection wavelength 488nm.
The parts title of labelling and correspondence in accompanying drawing:
1-dynamic high-pressure charger, 2-testing sample material, 3-metallic diaphragm material, 4-window glass, 5-beam splitter, 6-
Fibre-optical splice, 7-optical fiber, 8-bonder, 9-detecting laser, 10-data acquiring and recording memory, 11-synchronizer trigger, 12-
Collimator, 13-photodetector, 14-decays mirror.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and explanation thereof are only used for explaining this
Utility model, is not intended as restriction of the present utility model.
Embodiment:
As it is shown in figure 1, use the mode spraying plating of spraying plating or magnetron sputtering to window glass the gold measuring reflective light intensity change
Glass surface forms golden membranous layer, and its thickness is micron dimension, then testing sample material is tight with the window glass 4 of spraying plating gold membrane material
Closely connected conjunction, forms test experiments target sample.Not every glass all meets use requirement, and window glass 4 needs to select one
Under the conditions of constant-pressure, sapphire or the LiF material still with fabulous light transmission can be as first-selections.
Before test experiments target sample is loaded by dynamic high-pressure, the exploring laser light bundle produced by detecting laser 9 passes through bonder 8
Export through optical fiber 7 and fibre-optical splice 6 successively, act perpendicularly to experimental test target sample through beam splitter 5 to window glass 4 and be coated with golden membranous layer
The surface of material, its reflection light is again through window, by realizing small size light beam, quilt through optical fiber 7, collimator 12 after beam splitter 5
Causing at photodetector 13, reflection light beam can be vertically in photodetector 13, and photodetector 13 is remembered with data acquisition
Record storage 10 to connect so that it is be in state to be measured.Preferably, detection light beam, through bonder 8 and collimator 12, can realize hundreds of
Micron diameter size light beam acts on the surface of golden membranous layer material.Preferably, detection light beam is in the effect of golden membranous layer material surface
Position is its geometric center point.
The photodetector 13 of reflective light intensity measure of the change, loads the loading sequence of hundreds of nanoseconds according to quasi-constant entropy, with
And the pressure of Impulsive load hundred nanosecond holds time, preferred photodetector device response time should be not less than ten nanosecond orders.
Measuring the data acquiring and recording memory 10 being connected with photodetector 13 is existing matured product, it is possible to the most directly purchase
Can buy, select there is nanosecond order temporal resolution, the data acquiring and recording memory that is not less than GHz sample rate characteristic is carried out
Gather and record.
When experiment is measured, regulation detection light beam laser output, add between beam splitter 5 and fibre-optical splice 6 simultaneously
Add decay mirror 14 so that detection light beam laser output, when a certain output power value, with the addition of photoelectricity after decay mirror 14
The range of decrease of detector output voltage values is equal with decay mirror decaying amplitudes；I.e. set up photodetector output voltage values and output work
Rate value has linear changing relation；Decay mirror 14 is retained, record photodetector output electricity now when official testing is tested
Pressure value U0；Utilize dynamic high-pressure to load the signal of telecommunication of zero moment output, trigger photodetector 13 sum by synchronizer trigger 11
According to acquisition and recording memory 10, measure and under the loading of acquisition and recording dynamic high-pressure, the reflection light delta data of gold membrane material.By gold
The known initial reflectance of film material and the coefficient of correlation loading zero moment reflective light intensity voltage data formation, can calculate and set out height
In pressure loading procedure, the reflectance delta data of golden membranous layer material.Based on gold membrane material reflectance and Temperature Scaling the most right
(as in figure 2 it is shown, the golden film reflectance for gold membrane material varies with temperature calibration curve, detect light beam wavelength 488nm) should be related to,
The temperature variation data of available golden membranous layer material.Loading for quasi-constant entropy, obtain is in material dynamic high-pressure loading procedure
Temperature dynamic delta data；For Impulsive load, obtain is the temperature transient data in material dynamic high-pressure loading procedure.
Above-described detailed description of the invention, is entered the purpose of this utility model, technical scheme and beneficial effect
One step describes in detail, be it should be understood that and the foregoing is only detailed description of the invention of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all within spirit of the present utility model and principle, any amendment, the equivalent made are replaced
Change, improvement etc., within should be included in protection domain of the present utility model.
Claims (6)
1. a dynamic high-pressure based on reflectance loads lower material temperature and measures system, it is characterised in that include that dynamic high-pressure loads
Device (1), described dynamic high-pressure charger (1) connects test experiments target sample, and test experiments target sample connects reflection light
Strong change test system, reflective light intensity change test system connects synchronizer trigger (11), and synchronizer trigger (11) is with dynamic
High pressure charger (1) connects.
A kind of dynamic high-pressure based on reflectance the most according to claim 1 loads lower material temperature and measures system, its feature
Being, described test experiments target sample is mainly made up of testing sample material (2), metallic diaphragm material (3) and window material,
Metallic diaphragm material (3) is arranged between testing sample material (2) and window material, and three fits tightly, testing sample
Material (2) is arranged between metallic diaphragm material (3) and dynamic high-pressure charger (1), and window material is arranged on metallic diaphragm material
Between material (3) and reflective light intensity change test system.
A kind of dynamic high-pressure based on reflectance the most according to claim 2 loads lower material temperature and measures system, its feature
Being, described reflective light intensity change test system is mainly by detecting laser (9), beam splitter (5), bonder (8), collimator
(12), photodetector (13) and data acquiring and recording memory (10) constitute, beam splitter (5) is arranged on bonder (8) and window
Between gate material, being provided with fibre-optical splice (6) in beam splitter (5) side, between fibre-optical splice (6) and bonder (8), optical fiber connects
Head (6) and collimator (12) between be provided with optical fiber (7), optical fiber (7) respectively with corresponding fibre-optical splice (6), bonder (8)
Or collimator (12) connects, bonder (8) and detecting laser (9) connect, and collimator (12) and photodetector (13) connect,
Photodetector (13) and data acquiring and recording memory (10) connect, and data acquiring and recording memory (10) and synchronization trigger
Device (11) connects.
A kind of dynamic high-pressure based on reflectance the most according to claim 3 loads lower material temperature and measures system, its feature
Being, the exploring laser light bundle that described detecting laser (9) produces acts perpendicularly to metallic diaphragm material (3) table after beam splitter
Face, the light intensity of its reflection light beam is changed to vertical angle state.
A kind of dynamic high-pressure based on reflectance the most according to claim 3 loads lower material temperature and measures system, its feature
Being, the exploring laser light bundle that described detecting laser (9) produces is its geometric center point at metal membrane material (3) active position.
A kind of dynamic high-pressure based on reflectance the most according to claim 2 loads lower material temperature and measures system, its feature
Being, described window material uses glass to make.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620606480.0U CN205748706U (en) | 2016-06-20 | 2016-06-20 | A kind of dynamic high-pressure based on reflectance loads lower material temperature and measures system |
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| CN201620606480.0U CN205748706U (en) | 2016-06-20 | 2016-06-20 | A kind of dynamic high-pressure based on reflectance loads lower material temperature and measures system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865651A (en) * | 2016-06-20 | 2016-08-17 | 中国工程物理研究院流体物理研究所 | System and method for measuring temperature of material under dynamic high-pressure loading on basis of reflectivity |
| CN114088238A (en) * | 2021-11-18 | 2022-02-25 | 中国工程物理研究院流体物理研究所 | Picosecond time resolution impact temperature measurement system and method based on wide radiation spectrum |
| CN116519500A (en) * | 2023-04-19 | 2023-08-01 | 山东科技大学 | Method for acquiring dynamic temperature cloud picture of Hopkinson pressure bar sample |
| CN116908116A (en) * | 2023-09-13 | 2023-10-20 | 中国工程物理研究院流体物理研究所 | Multiple compressed fluid single-shot multiple information diagnostic target |
-
2016
- 2016-06-20 CN CN201620606480.0U patent/CN205748706U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865651A (en) * | 2016-06-20 | 2016-08-17 | 中国工程物理研究院流体物理研究所 | System and method for measuring temperature of material under dynamic high-pressure loading on basis of reflectivity |
| CN114088238A (en) * | 2021-11-18 | 2022-02-25 | 中国工程物理研究院流体物理研究所 | Picosecond time resolution impact temperature measurement system and method based on wide radiation spectrum |
| CN116519500A (en) * | 2023-04-19 | 2023-08-01 | 山东科技大学 | Method for acquiring dynamic temperature cloud picture of Hopkinson pressure bar sample |
| CN116519500B (en) * | 2023-04-19 | 2024-03-12 | 山东科技大学 | Method for acquiring dynamic temperature cloud picture of Hopkinson pressure bar sample |
| CN116908116A (en) * | 2023-09-13 | 2023-10-20 | 中国工程物理研究院流体物理研究所 | Multiple compressed fluid single-shot multiple information diagnostic target |
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Granted publication date: 20161130 Effective date of abandoning: 20180320 |
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| AV01 | Patent right actively abandoned |