CN113970571A - Simple blackness coefficient comparison device and blackness coefficient rapid determination method - Google Patents
Simple blackness coefficient comparison device and blackness coefficient rapid determination method Download PDFInfo
- Publication number
- CN113970571A CN113970571A CN202111240080.4A CN202111240080A CN113970571A CN 113970571 A CN113970571 A CN 113970571A CN 202111240080 A CN202111240080 A CN 202111240080A CN 113970571 A CN113970571 A CN 113970571A
- Authority
- CN
- China
- Prior art keywords
- blackness
- sample
- temperature
- soaking
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000002791 soaking Methods 0.000 claims abstract description 45
- 238000012360 testing method Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 13
- 238000009529 body temperature measurement Methods 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 23
- 238000001514 detection method Methods 0.000 abstract description 12
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a simple blackness coefficient comparison device and a blackness coefficient rapid determination method in the field of thermal testing. This application adopts the mode of comparing the survey, heats the sample that awaits measuring through designing a soaking chamber, then utilizes thermocouple temperature measuring apparatu and infrared measuring apparatu to carry out temperature detection to the sample that awaits measuring simultaneously, compares the blackness coefficient who confirms infrared measuring apparatu through the temperature at last to realize the simple and easy rapid determination of material blackness coefficient, the material blackness coefficient that obtains is equal or is close operating mode condition value, can be quick use in industrial combustion furnace kiln temperature detects and the material development.
Description
Technical Field
The invention relates to the field of thermal testing, in particular to a simple blackness coefficient comparison device and a blackness coefficient rapid determination method.
Background
The heat balance test represented by a combustion furnace kiln of a steel enterprise relates to the temperature detection of respective materials on the surface of the furnace kiln, and generally only adopts a remote infrared temperature instrument (gun) to carry out rapid non-contact detection due to the fact that the measurement points are multiple and are limited by conditions such as height, distance, high temperature and the like. For accurate detection of different material surfaces, a non-contact infrared temperature detection method needs to determine the blackness coefficient of the material surface so as to adjust and correct the coefficient of an infrared detection device, and then an accurate detection temperature value can be obtained. The blackness coefficients of different materials usually adopt conventional empirical data, so that the accuracy of measuring the obtained temperature value is difficult to judge. In addition, in the research and development process of infrared radiation materials such as heat preservation and heat insulation, the infrared emissivity (generally referred to as blackness coefficient) of the materials needs to be subjected to a great deal of detailed comparison and detection, so that the substrate material with relatively higher emissivity can be selected.
Emissivity is an important basic parameter for representing the radiation performance of a material in an infrared band, most of the existing measurement means of the infrared emissivity of the material are large-scale professional equipment, and the specific measurement means is to acquire infrared emissivity data of the material by sending a prepared sample to a laboratory for measurement. Considering that the infrared emissivity of a material is very sensitive and can be greatly changed under the influence of environment and natural aging, the current measurement mode has the following limitations that on one hand, large-scale measurement equipment in a laboratory is complex in composition, complex to operate, severe in requirements on measurement environment, long in measurement time, and the time required by single measurement is measured in hours or even days; on the other hand, the measurement object is a sample prepared independently, the preparation process of the measurement object may be different from that of the actual target, and the performance of the material on the surface of the actual target is degraded due to the influence of the environment, so that the infrared radiation characteristic of the actual material cannot be accurately represented by the measurement result in the laboratory.
Disclosure of Invention
In order to overcome the defects of complex structure, troublesome measurement and the like of the existing material infrared emissivity measuring device, the invention aims to solve the technical problems that: provides a simple blackness coefficient comparison device and a blackness coefficient rapid determination method which can rapidly measure the infrared emissivity of a material.
The technical scheme adopted by the invention for solving the technical problems is as follows:
simple and easy blackness coefficient compares device, including the soaking chamber, be equipped with air intake and air outlet on the soaking chamber, the soaking intracavity is equipped with sample splendid attire groove, is equipped with the opening with sample splendid attire groove dead against soaking chamber top, and the opening outside is equipped with the sealed big lid that can open, sealed big lid is gone up to alternate and is provided with the hollow tube of liftable, be equipped with thermocouple temperature measurement appearance on the soaking chamber lateral wall.
Further, the soaking cavity is strip-shaped, the air inlet and the air outlet are located at two ends of the soaking cavity in the length direction, and the air inlet and the air outlet are in transition through conical surfaces.
Furthermore, both ends of the heat equalizing cavity are also provided with air equalizing hole plates.
Further, a self-closing sealing cover is arranged on the inner side of the opening at the top of the heat-equalizing cavity.
Furthermore, an observation hole with a lens is arranged at the top of the soaking cavity, and a cold light source is arranged in the soaking cavity.
Further, tin foil paper or aluminum foil paper is laid on the inner wall and the bottom of the sample containing groove.
Furthermore, a horizontal adjusting bracket is arranged on the outer side of the bottom of the soaking cavity.
The method for rapidly determining the blackness coefficient comprises the simple blackness coefficient comparison device and further comprises the following steps: firstly, a sample to be tested is placed in a sample containing groove, then constant temperature gas is introduced into a soaking cavity through an air inlet and an air outlet, after a thermocouple temperature measuring instrument displays that the temperature in the soaking cavity is stable, a hollow tube moves downwards, the bottom of the hollow tube is close to the sample to be tested in the sample containing groove, finally, an infrared temperature measuring gun is adopted to be aligned to the hollow tube, a laser point of the hollow tube is irradiated on the sample, the blackness coefficient value of the infrared temperature measuring gun is adjusted until the displayed temperature is consistent with the temperature displayed by the thermocouple temperature measuring instrument, and the corresponding blackness coefficient value can be regarded as the blackness coefficient of the sample to be tested.
Furthermore, in the process of introducing the constant-temperature gas, the hollow pipe needs to be plugged first, and the size of the openings of the air inlet and the air outlet is adjusted to always keep the pressure in the soaking cavity to be positive.
Furthermore, in the process of introducing the constant-temperature gas, after the temperature of the thermocouple temperature measuring instrument is observed to be stable, the gas is continuously introduced for 10-20min, and then the infrared temperature measurement is carried out.
The invention has the beneficial effects that: the method comprises the steps of adopting a comparison and determination mode, heating a sample to be tested by designing a soaking cavity, then simultaneously carrying out temperature detection on the sample to be tested by utilizing a thermocouple temperature measuring instrument and an infrared measuring instrument, and finally determining the blackness coefficient of the infrared measuring instrument by temperature comparison, thereby realizing simple and rapid determination of the blackness coefficient of the material.
Drawings
FIG. 1 is a schematic diagram of the present invention.
The mark in the figure is 1-heat equalizing cavity, 2-sample containing groove, 3-large sealing cover, 4-hollow pipe, 5-self-closing sealing cover, 6-thermocouple temperature measuring instrument, 7-air equalizing hole plate, 8-air inlet, 9-air outlet and 10-horizontal adjusting bracket.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1, the simple blackness coefficient comparison device of the present invention includes a soaking cavity 1, an air inlet 8 and an air outlet 9 are arranged on the soaking cavity 1, a sample containing groove 2 is arranged in the soaking cavity 1, an opening is arranged at the top of the soaking cavity 1 opposite to the sample containing groove 2, a large sealing cover 3 capable of opening is arranged outside the opening, a hollow tube 4 capable of lifting is inserted into the large sealing cover 3, and a thermocouple temperature measuring instrument 6 is arranged on the side wall of the soaking cavity 1. The effect of soaking chamber 1 mainly is to provide a heating environment, and the constant temperature equipment that can adopt electrical heating formula a little complicated, considers simple and convenience, can utilize high temperature flue gas to heat through setting up air intake 8 and air outlet 9 on soaking chamber 1.
The method for determining the blackness coefficient of the material by adopting the blackness coefficient comparison device comprises the following steps:
firstly, a sample to be tested is placed in a sample containing groove 2 through a large sealing cover 3, then constant temperature gas is introduced into a soaking cavity 1 through an air inlet 8 and an air outlet 9, after a thermocouple temperature measuring instrument 6 displays that the temperature in the soaking cavity 1 is stable, a hollow tube 4 moves downwards, the bottom of the hollow tube is close to the sample to be tested in the sample containing groove 2, finally, an infrared temperature measuring gun is adopted to align to the hollow tube 4, a laser point of the hollow tube is irradiated on the sample, the black coefficient value of the infrared temperature measuring gun is adjusted until the displayed temperature is consistent with the temperature displayed by the thermocouple temperature measuring instrument 6, and the corresponding black coefficient value can be regarded as the black coefficient of the sample to be tested. Compare current measuring device, the structure of this application is simpler, and measurement process is more simple and convenient, and measuring result is also more close operating mode condition value, but the cost of greatly reduced industrial combustion furnace kiln temperature detection and material development.
In order to keep the temperature in the soaking cavity 1 constant, the soaking cavity 1 is preferably designed to be strip-shaped, and the air inlet 8 and the air outlet 9 are located at two ends of the soaking cavity 1 in the length direction and are in transition with the soaking cavity 1 through conical surfaces. Furthermore, both ends of the heat equalizing cavity 1 are also provided with air equalizing hole plates 7. The air equalizing hole plate 7 is a baffle plate with holes uniformly distributed, and after air entering from the air inlet 8 passes through the air equalizing hole plate 7, stable and uniform air flow can be formed, so that the temperature in the heat equalizing cavity 1 is kept constant.
In the process of ventilating and heating the heat-equalizing cavity 1, the heat-equalizing cavity 1 needs to be isolated from the outside air, and the hollow pipe 4 is inserted in the large sealing cover 3, so that the self-closing sealing cover 5 is arranged on the inner side of the top opening of the heat-equalizing cavity 1 in order to seal the hollow pipe 4. The self-closing sealing cover 5 can keep sealing the top opening of the heat equalizing cavity 1 under the action of the spring in a natural state, and when temperature detection is needed, the self-closing sealing cover 5 can be directly jacked open by downwards moving the hollow pipe 4, so that the operation is convenient and fast.
In addition, the following preferred schemes are provided in the application: in order to facilitate observation and operation, the top of the soaking cavity 1 is provided with an observation hole with a lens, and a cold light source is arranged in the soaking cavity 1. In order to conveniently contain a plurality of samples and improve the detection efficiency, the sample containing groove 2 can be designed into a multi-lattice structure; in order to avoid the influence of the equipment on the sample to be measured, the sample containing groove 2 and the hollow pipe 4 are both preferably made of refractory materials with low heat conductivity; in order to reduce heat transfer, tin foil paper or aluminum foil paper is laid on the inner wall and the bottom of the sample containing groove 2; in order to ensure the stability of the placement of the sample, a horizontal adjusting bracket 10 is arranged on the outer side of the bottom of the soaking cavity 1; in order to prevent scalding, a lengthened pipeline or a heat exchanger is connected to the air outlet 9 to reduce the temperature of the air.
In the process of measuring the blackness index, the following preferable schemes are also provided: in order to ensure the constant temperature in the soaking cavity, the hollow pipe 4 needs to be plugged firstly in the process of introducing constant temperature gas, and particularly, the pipe orifice can be plugged by a plug or the hollow pipe 4 can be taken out and sealed by a self-closing sealing cover 5. Meanwhile, the positive pressure in the heat equalizing cavity 1 can be always kept by adjusting the sizes of the openings of the air inlet 8 and the air outlet 9. In the process of introducing the constant-temperature gas, after the temperature of the thermocouple temperature measuring instrument 6 is observed to be stable, the gas is continuously introduced for 10-20min, and then the infrared temperature measurement is carried out, so that the temperature of the sample is ensured to be consistent with the temperature displayed by the thermocouple temperature measuring instrument 6.
The invention is further illustrated by the following specific examples.
The first embodiment is as follows:
processing the residual steel plate with paint on the surface of the kiln in the production field into sample pieces with the diameter of 30mm, horizontally placing the paint face upwards into a sample containing groove, and then introducing superheated steam with the constant temperature of 200 ℃ into a heat equalizing cavity. After 5min, the thermocouple maintains the stable temperature value to be 198.5 ℃, and the test is started after the ventilation is continuously maintained for 10 min: extending one end of the telescopic hollow pipe to a sample wafer close to the sample containing groove, then irradiating a laser point of the infrared temperature measuring gun onto the steel plate sample through the hollow pipe, gradually adjusting the blackness coefficient value of the infrared temperature measuring gun, and when the blackness coefficient is adjusted to 0.65, displaying a temperature value close to the thermocouple temperature 198.5 ℃ (within +/-1 ℃), wherein the blackness coefficient is regarded as the blackness coefficient value of the surface of the painted steel plate.
Example two:
the method comprises the steps of paving tin foil paper in a sample containing groove with 3 sample grids in advance, then respectively placing 3 kinds of infrared radiation sample powder obtained through laboratory research in the 3 sample grids, compacting the powder to ensure that the surface is smooth and marking is carried out. Setting the hot air electric heating temperature to be 500 ℃, then introducing the hot air electric heating temperature into the heat equalizing cavity, maintaining the thermocouple at a stable temperature value of 498.3 ℃ after 14min, continuing to maintain the ventilation for 20min, and then starting the test: extending one end of the telescopic hollow pipe to a powder sample close to the sample containing groove, then irradiating a laser point of the infrared temperature measuring gun to the surface of the powder sample through the hollow pipe, gradually adjusting the black coefficient value of the infrared temperature measuring gun, and when the black coefficient is adjusted to 0.84, displaying a temperature value which is close to the temperature of the thermocouple 498.3 ℃ (within +/-1 ℃), wherein the black coefficient is regarded as the black coefficient value of the powder sample. By slightly adjusting the laser spot irradiation position in the same manner, the values of the blackness index of the other two samples were measured to be 0.87 and 0.90, respectively.
The blackness coefficient obtained by adjusting the infrared temperature measuring gun in the embodiment is quite close to the blackness coefficient value of the material, so that the blackness coefficient of the material can be rapidly and accurately detected by the scheme of the application.
Claims (10)
1. Simple and easy blackness coefficient comparison device, characterized by: including soaking chamber (1), be equipped with air intake (8) and air outlet (9) on soaking chamber (1), be equipped with sample splendid attire groove (2) in soaking chamber (1), be equipped with the opening with sample splendid attire groove (2) dead against soaking chamber (1) top, the opening outside is equipped with sealed big lid (3) that can open, alternate on sealed big lid (3) and be provided with hollow tube (4) of liftable, be equipped with thermocouple temperature measurement appearance (6) on soaking chamber (1) lateral wall.
2. The simplified device for comparing blackness coefficients according to claim 1, wherein: the soaking cavity (1) is in a long strip shape, the air inlet (8) and the air outlet (9) are located at two ends of the soaking cavity (1) in the length direction and are in transition with the soaking cavity (1) through conical surfaces.
3. The apparatus for comparing simple blackness coefficients according to claim 2, wherein: and air-equalizing pore plates (7) are also arranged at the two ends of the heat-equalizing cavity (1).
4. The simplified device for comparing blackness coefficients according to claim 1, wherein: the inner side of the top opening of the heat equalizing cavity (1) is provided with a self-closing sealing cover (5).
5. The simplified device for comparing blackness coefficients according to claim 1, wherein: the top of the soaking cavity (1) is provided with an observation hole with a lens, and a cold light source is arranged in the soaking cavity.
6. The simplified device for comparing blackness coefficients according to claim 1, wherein: and tin foil paper or aluminum foil paper is laid on the inner wall and the bottom of the sample containing groove (2).
7. The simplified device for comparing blackness coefficients according to claim 1, wherein: the outer side of the bottom of the heat equalizing cavity (1) is provided with a horizontal adjusting bracket (10).
8. The method for rapidly measuring the blackness coefficient is characterized by comprising the following steps: the simple blackness index comparison device as claimed in any one of claims 1 to 7, further comprising the following steps: firstly, a sample to be tested is placed in a sample containing groove (2), then constant temperature gas is introduced into a soaking cavity (1) through an air inlet (8) and an air outlet (9), after a thermocouple temperature measuring instrument (6) displays that the temperature in the soaking cavity (1) is stable, a hollow tube (4) is moved downwards, the bottom of the hollow tube is close to the sample to be tested in the sample containing groove (2), finally, an infrared temperature measuring gun is adopted to be aligned to the hollow tube (4), a laser point of the hollow tube is irradiated on the sample, the black coefficient value of the infrared temperature measuring gun is adjusted until the displayed temperature is consistent with the temperature displayed by the thermocouple temperature measuring instrument (6), and the corresponding black coefficient value can be regarded as the black coefficient of the test sample.
9. The method for rapidly determining a blackness index according to claim 8, wherein: in the process of introducing constant temperature gas, the hollow pipe (4) needs to be plugged first, and positive pressure is always kept in the soaking cavity (1) by adjusting the opening sizes of the air inlet (8) and the air outlet (9).
10. The method for rapidly determining a blackness index according to claim 8, wherein: in the process of introducing the constant-temperature gas, after the temperature of the thermocouple temperature measuring instrument (6) is observed to be stable, the gas is continuously introduced for 10-20min, and then the infrared temperature measurement is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111240080.4A CN113970571A (en) | 2021-10-25 | 2021-10-25 | Simple blackness coefficient comparison device and blackness coefficient rapid determination method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111240080.4A CN113970571A (en) | 2021-10-25 | 2021-10-25 | Simple blackness coefficient comparison device and blackness coefficient rapid determination method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113970571A true CN113970571A (en) | 2022-01-25 |
Family
ID=79588162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111240080.4A Pending CN113970571A (en) | 2021-10-25 | 2021-10-25 | Simple blackness coefficient comparison device and blackness coefficient rapid determination method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113970571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115435593A (en) * | 2022-09-07 | 2022-12-06 | 西安应用光学研究所 | Sample heating furnace for testing emissivity of high-temperature material |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001093882A (en) * | 1999-09-22 | 2001-04-06 | Ulvac Japan Ltd | Temperature measuring device and vacuum treating device equipped with the same |
| CN102519606A (en) * | 2011-11-18 | 2012-06-27 | 酒泉钢铁(集团)有限责任公司 | Method for measuring emissivity of infrared temperature measurement target body |
| CN103941437A (en) * | 2014-04-09 | 2014-07-23 | 京东方科技集团股份有限公司 | Experimental facility used for high-low temperature optical evaluation |
| CN103994825A (en) * | 2014-03-07 | 2014-08-20 | 马钢(集团)控股有限公司 | Off-line comparison device of infrared temperature measurement equipment, and comparison method of off-line comparison device |
| CN104111266A (en) * | 2014-07-18 | 2014-10-22 | 常熟市环境试验设备有限公司 | High-precision natural ventilation heat aging test chamber |
| US9004753B1 (en) * | 2010-10-01 | 2015-04-14 | Kurion, Inc. | Infrared detection of defects in wind turbine blades |
| CN205749019U (en) * | 2016-05-23 | 2016-11-30 | 武汉康立优医疗发展有限公司 | Disposable airtight body fluid indwelling device |
| CN108181345A (en) * | 2017-11-27 | 2018-06-19 | 中国空间技术研究院 | A kind of device and method for being used to test condensed water formation |
| CN108896840A (en) * | 2018-06-28 | 2018-11-27 | 北京工业大学 | A kind of device and method of original position real-time measurement piezoelectric material high-temperature piezoelectric strain constant |
-
2021
- 2021-10-25 CN CN202111240080.4A patent/CN113970571A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001093882A (en) * | 1999-09-22 | 2001-04-06 | Ulvac Japan Ltd | Temperature measuring device and vacuum treating device equipped with the same |
| US9004753B1 (en) * | 2010-10-01 | 2015-04-14 | Kurion, Inc. | Infrared detection of defects in wind turbine blades |
| CN102519606A (en) * | 2011-11-18 | 2012-06-27 | 酒泉钢铁(集团)有限责任公司 | Method for measuring emissivity of infrared temperature measurement target body |
| CN103994825A (en) * | 2014-03-07 | 2014-08-20 | 马钢(集团)控股有限公司 | Off-line comparison device of infrared temperature measurement equipment, and comparison method of off-line comparison device |
| CN103941437A (en) * | 2014-04-09 | 2014-07-23 | 京东方科技集团股份有限公司 | Experimental facility used for high-low temperature optical evaluation |
| CN104111266A (en) * | 2014-07-18 | 2014-10-22 | 常熟市环境试验设备有限公司 | High-precision natural ventilation heat aging test chamber |
| CN205749019U (en) * | 2016-05-23 | 2016-11-30 | 武汉康立优医疗发展有限公司 | Disposable airtight body fluid indwelling device |
| CN108181345A (en) * | 2017-11-27 | 2018-06-19 | 中国空间技术研究院 | A kind of device and method for being used to test condensed water formation |
| CN108896840A (en) * | 2018-06-28 | 2018-11-27 | 北京工业大学 | A kind of device and method of original position real-time measurement piezoelectric material high-temperature piezoelectric strain constant |
Non-Patent Citations (1)
| Title |
|---|
| 张华: "《热工测量仪表》", vol. 2, 冶金工业出版社, pages: 129 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115435593A (en) * | 2022-09-07 | 2022-12-06 | 西安应用光学研究所 | Sample heating furnace for testing emissivity of high-temperature material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105445321B (en) | The detection means of combustible material hot property under the conditions of a kind of programmable temperature control | |
| CN104569046A (en) | Ultra-high temperature heat-insulating property testing device and method | |
| CN113970571A (en) | Simple blackness coefficient comparison device and blackness coefficient rapid determination method | |
| CN102353694A (en) | Automatic gas self-ignition temperature testing device | |
| CN102707017A (en) | Test system for detecting integrity and reliability of gas monitoring system | |
| CN106990094A (en) | The situ Raman Spectroscopy measuring method and measurement apparatus of vaporization at high temperature corrosivity fused salt | |
| CN103487349A (en) | Intermittent combustion gas thermal flow meter | |
| CN103063700B (en) | Method for synchronously measuring apparent thermophysical property and autoignition temperature of combustible particles | |
| CN108827795A (en) | Strain rate high/low temperature compresses response test method in a kind of modified double base propellant | |
| CN103994825A (en) | Off-line comparison device of infrared temperature measurement equipment, and comparison method of off-line comparison device | |
| CN205920076U (en) | Full automatic testing device suitable for gaseous autoignition temperature | |
| CN109444215A (en) | Unstable state superhigh temperature Heat-Insulation Test device and test method | |
| CN204556432U (en) | Use for laboratory thermogravimetric analyzer | |
| CN212872268U (en) | Coating heat-proof quality testing arrangement | |
| CN108445042A (en) | A method of measuring outer surface of building convection transfer rate | |
| CN204389422U (en) | Superhigh temperature Heat-Insulation Test device | |
| CN113970572A (en) | Blackness coefficient comparison device and blackness coefficient rapid determination method | |
| CN208188025U (en) | A kind of device using infrared thermal imaging method measurement unsaturated soil thermal coefficient | |
| CN203881446U (en) | Off-line comparison device for infrared temperature measurement equipment | |
| CN107545810B (en) | A kind of experimental provision for studying different liquid level depth pond fire combustion characteristics | |
| CN210604475U (en) | Heat conductivity coefficient testing device | |
| CN205981731U (en) | Ventilation cooling test bench | |
| CN209640268U (en) | Unstable state superhigh temperature Heat-Insulation Test device | |
| CN205262897U (en) | Experimental device for oxygen content in electric heat firing method survey air | |
| CN111595901A (en) | Device and method for measuring heat conductivity coefficient of refractory material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |