CN105509931A - Heat flow sensor calibration device - Google Patents
Heat flow sensor calibration device Download PDFInfo
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- CN105509931A CN105509931A CN201510861304.1A CN201510861304A CN105509931A CN 105509931 A CN105509931 A CN 105509931A CN 201510861304 A CN201510861304 A CN 201510861304A CN 105509931 A CN105509931 A CN 105509931A
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- heating plate
- heat flux
- flux sensor
- drive link
- flow sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K19/00—Testing or calibrating calorimeters
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- General Physics & Mathematics (AREA)
- General Induction Heating (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a heat flow sensor calibration device, and the device comprises a heating plate and a heating assembly which is used for heating the heating plate. Two sides of the heating plate are symmetrically provided with a standard heat flow sensor and an experimental heat flow sensor. The heat flow surface of the standard heat flow sensor and the heat flow surface of the experimental heat flow sensor face the heating plate. Modulation discs which rotate synchronously are respectively disposed between the heating plate and the standard heat flow sensor and between the heating plate and the experimental heat flow sensor. The two modulation discs are symmetrically disposed at two sides of the heating plate, and have the same phase. The device provided by the invention is simple in structure, is simple and convenient in operation, is used for calibrating a dynamic heat flow, is high in calibration precision, and is high in calibration efficiency.
Description
Technical field
The present invention relates generally to heat flux sensor technical field, refers in particular to a kind of heat flux sensor caliberating device.
Background technology
Heat flux measurement is widely used in the design of aerospace weapon equipment thermal protection system, Aerodynamic Heating configuration design and Thermal Power Engineering kiln design of heat transfer etc., the application of heat flux measurement trends towards the actual applying working condition condition of dynamic heat flux test, traditional heat flux sensor caliberating device provides symmetrical hot-fluid through the dull and stereotyped both sides of pyrographite of special processing, symmetric position places standard heat flux sensor and experiment hot flow sensor, has been exported the demarcation of experiment hot flow sensor by contrast standard heat flux sensor and experiment hot flow sensor signal.This device Problems existing is the hot-fluid provided because pyrographite is dull and stereotyped is static hot-fluid, this hot-fluid can not change with certain frequency dynamic, in actual application, demarcate hot-fluid dynamic often, therefore the method can only flow to rower calmly to static heat, can not meet the requirement of the actual applying working condition of hot-fluid.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical matters existed for prior art, the invention provides a kind of structure simple, easy and simple to handle, symmetric dynamic hot-fluid environment and the high heat flux sensor caliberating device of stated accuracy can be provided.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is:
A kind of heat flux sensor caliberating device, comprise heating plate and the heating component for heating heating plate, the symmetria bilateralis of described heating plate is provided with standard heat flux sensor and experiment hot flow sensor, the hot-fluid face of described standard heat flux sensor and experiment hot flow sensor is all intended for described heating plate, between described heating plate and standard heat flux sensor and be provided with the chopper wheel of synchronous axial system between heating plate and experiment hot flow sensor, two chopper wheels are symmetricly set on the both sides of heating plate and phase place is identical.
Further improvement as technique scheme:
Described chopper wheel comprises polylith secter pat, and polylith secter pat is along the circumferential direction uniformly distributed.
The chopper wheel of described heating plate both sides is all driven by same driven unit and rotates.
Described driven unit comprises driving box, the first drive link, the second drive link and the 3rd drive link, described first drive link is arranged on the both sides of described driving box and drives rotation by driving box, one end of described second drive link coordinates with the first drive link and is in transmission connection, the one end fits of the other end and the 3rd drive link is in transmission connection, the other end of the 3rd drive link is fixedly connected with chopper wheel, and wherein each cooperation is in transmission connection and is two cone gears cooperation transmissions.
Described heating component comprises two water cooled electrodes, is distributed in the two ends of heating plate and clamps heating plate.
The end face at the two ends that two water cooled electrodes are relative all offers strip slot, clamp assembly is provided with in described strip slot, described clamp assembly comprises two pieces and is arranged on strip slot both sides for clamping the clamping plate of heating plate, and the part that described clamping plate stretch out strip slot is provided with the block propping up water cooled electrode.
Cooling water pipe is provided with in described water cooled electrode.
Described heating plate is graphite planar.
Compared with prior art, the invention has the advantages that:
Heat flux sensor caliberating device of the present invention, by chopper wheel, dynamic modulation is carried out to the hot-fluid of heating plate both sides, the standard heat flux sensor of heating plate both sides and experiment hot flow sensor is made to be in symmetrical dynamic heat flux environment, then exported by the signal of collection two heat flux sensors, and contrast, to complete the demarcation of experiment hot flow sensor; Structure is simple, easy and simple to handle in addition, demarcation efficiency is high.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention.
Fig. 2 is frame structure schematic diagram of the present invention.
Fig. 3 is the structural representation of water cooled electrode and clamp assembly in the present invention.
Fig. 4 is the structural representation of driven unit in the present invention.
Number in the figure represents: 1, heating plate; 2, heating component; 21, water cooled electrode; 22, cooling water pipe; 3, clamp assembly; 31, clamping plate; 32, block; 4, chopper wheel; 5, standard heat flux sensor; 6, experiment hot flow sensor; 7, driven unit; 71, driving box; 72, the first drive link; 73, the second drive link; 74, the 3rd drive link; 75, cone gear; 8, control system; 81, digital voltmeter; 82, computing machine.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As shown in Figures 1 to 4, the heat flux sensor caliberating device of the present embodiment, comprise heating plate 1 and the heating component 2 for heating heating plate 1, the symmetria bilateralis of heating plate 1 is provided with standard heat flux sensor 5 and experiment hot flow sensor 6, the hot-fluid face of standard heat flux sensor 5 and experiment hot flow sensor 6 is all intended for heating plate 1, between heating plate 1 and standard heat flux sensor 5 and be provided with the chopper wheel 4 of synchronous axial system between heating plate 1 and experiment hot flow sensor 6, two chopper wheels 4 are symmetricly set on the both sides of heating plate 1 and phase place is identical, wherein the structure of chopper wheel 4 is similar with the chopper wheel 4 used in scrambler, namely phase place is identical refers to that the position in two chopper wheels 4 residing for each parts is spatially identical.By above setting, can ensure that standard heat flux sensor 5 is consistent with the environment residing for experiment hot flow sensor 6, and be provided with chopper wheel 4 in the both sides of heating plate 1, by the dynamic heat flux that the rotation of chopper wheel 4 can provide heating plate 1 both sides synchronous, thus staking-out work is fitted reality more, ensure the precision of demarcating.In addition, this caliberating device structure simple, easy and simple to handle and be easy to realize.
As shown in Figure 1, in the present embodiment, chopper wheel 4 comprises two pieces of secter pats, two pieces of secter pats are along the circumferential direction arranged and are oppositely arranged, the rotation of secter pat, the static heat of heating plate 1 can be made to circulate and to become dynamic heat flux, and adjust the change frequency of dynamic heat flux by the velocity of rotation adjusting secter pat.
As shown in Figure 1 and Figure 4, in the present embodiment, the chopper wheel 4 of heating plate 1 both sides is all driven by same driven unit 7 and rotates, can ensure that two chopper wheels 4 keep synchronous and same-phase is rotated, thus ensure that the standard heat flux sensor 5 of heating plate 1 both sides and experiment hot flow sensor 6 are in synchronous hot-fluid environment, improve the reliability and accuracy of demarcating.
As shown in Figure 1 and Figure 4, in the present embodiment, driven unit 7 comprises driving box 71, first drive link 72, second drive link 73 and the 3rd drive link 74, first drive link 72 is arranged on the both sides of driving box 71 and drives rotation by driving box 71, one end of second drive link 73 coordinates with the first drive link 72 and is in transmission connection, the one end fits of the other end and the 3rd drive link 74 is in transmission connection, the other end of the 3rd drive link 74 is fixedly connected with chopper wheel 4, wherein each coordinate to be in transmission connection be two cone gears 75 and coordinate transmission, to realize the transformation of each rotation direction.
As shown in Figures 2 and 3, in the present embodiment, heating plate 1 is graphite planar, heating component 2 comprises two water cooled electrodes 21, be distributed in the two ends of graphite planar, water cooled electrode 21 is in cylindric, its inside is provided with cooling water pipe 22, for ensureing that water cooled electrode 21 is in normal working temperature, the end face at the two ends that two water cooled electrodes 21 are relative all offers strip slot, clamp assembly 3 is provided with in strip slot, clamp assembly 3 comprises two pieces and is arranged on strip slot both sides for clamping the clamping plate 31 of graphite planar, due to strip slot, size between clamping plate 31 and graphite planar matches, therefore, it is possible to well clamp graphite planar, the part that clamping plate 31 stretch out strip slot is provided with the block 32 propping up water cooled electrode 21, facilitate the handling of clamping plate 31, wherein clamp assembly 3 is graphite material and makes, water cooled electrode 21 is all connected to the collection of digital voltmeter 81 for output voltage, digital voltmeter 81 is connected with computing machine 82, for the control of calibrating procedure and the comparative analysis of nominal data.
In the present embodiment, the principle of demarcation is as follows: under experiment hot flow sensor 6 and standard heat flux sensor 5 are placed in the dynamic heat flux environment of equal conditions, and the signal according to standard heat flux sensor 5 exports calibration experiment heat flux sensor 6.Utilize the coefficient C of standard heat flux sensor 5
0with output voltage E
0, just can calculate the symmetrical heat flow density q of applying, experimentally the output voltage E of heat flux sensor 6, the coefficient C of heat flux sensor to be calibrated can be determined, that is:
In formula: the coefficient of C-experiment hot flow sensor 6; C
0the coefficient of-standard heat flux sensor 5; Q-heat flow density; The output voltage of E-experiment hot flow sensor 6; The output voltage of E0-standard heat flux sensor 5.
By the demarcation to coefficient C, the quality of experiment hot flow sensor 6 can be judged, complete staking-out work.
Staking-out work process: the chilled water opening water cooled electrode 21, enter to cooling water pipe 22, ensure that water cooled electrode 21 is operated in the temperature range of permission, open electric control system 8 water supply cold electrode 21 to power, by the electric current and voltage value of control inputs water cooled electrode 21, make graphite cake rapid temperature increases to desired value (hot-fluid that this temperature correspondence is demarcated, hot-fluid 500KW/m
2time graphite planar temperature be 1500 DEG C, hot-fluid 1MW/m
2time graphite planar temperature be 1800 DEG C, the electric current and voltage that the control of target temperature is applied by electric control system 8 pairs of graphite planar controls), graphite planar both sides form isothermal area rapidly, the instruction of chopper wheel 4 rotational frequency is inputted in electric control system 8, chopper wheel 4 is rotated, under making two of graphite planar both sides heat flux sensors be in symmetrical dynamic heat flux environment with the speed of specifying (per second 2 go to 200 turns).Then open the signals collecting software in electric control system 8, the voltage signal of synchronous acquisition standard heat flux sensor 5 and experiment hot flow sensor 6 exports, and the output signal of computing machine 82 to two heat flux sensors compares.The sensitivity of combined standard heat flux sensor 5, the situation that the standard hot-fluid of experiment hot flow sensor 6 and voltage signal export can be obtained, adjust input voltage and input current value by electric control system 8 and can obtain the hot-fluid of experiment hot flow sensor 6 and the calibration curve of voltage, the heat flow modulus value of control experiment heat flux sensor 6 and the heat flow modulus value of standard heat flux sensor 5, the difference of the two is the calibration offset of experiment hot flow sensor 6, and whether this deviation meets design accuracy for evaluating and testing experiment hot flow sensor 6.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (8)
1. a heat flux sensor caliberating device, it is characterized in that, comprise heating plate (1) and the heating component (2) for heating heating plate (1), the symmetria bilateralis of described heating plate (1) is provided with standard heat flux sensor (5) and experiment hot flow sensor (6), the hot-fluid face of described standard heat flux sensor (5) and experiment hot flow sensor (6) is all intended for described heating plate (1), between described heating plate (1) and standard heat flux sensor (5) and be provided with the chopper wheel (4) of synchronous axial system between heating plate (1) and experiment hot flow sensor (6), two chopper wheels (4) are symmetricly set on the both sides of heating plate (1) and phase place is identical.
2. heat flux sensor caliberating device according to claim 1, is characterized in that, described chopper wheel (4) comprises polylith secter pat, and polylith secter pat is along the circumferential direction uniformly distributed.
3. heat flux sensor caliberating device according to claim 1 and 2, is characterized in that, the chopper wheel (4) of described heating plate (1) both sides is all driven by same driven unit (7) and rotates.
4. heat flux sensor caliberating device according to claim 3, it is characterized in that, described driven unit (7) comprises driving box (71), first drive link (72), second drive link (73) and the 3rd drive link (74), described first drive link (72) is arranged on the both sides of described driving box (71) and drives rotation by driving box (71), one end of described second drive link (73) coordinates with the first drive link (72) and is in transmission connection, the one end fits of the other end and the 3rd drive link (74) is in transmission connection, the other end of the 3rd drive link (74) is fixedly connected with chopper wheel (4), wherein each cooperation is in transmission connection and is two cone gears (75) cooperation transmissions.
5. heat flux sensor caliberating device according to claim 1 and 2, it is characterized in that, described heating component (2) comprises two water cooled electrodes (21), is distributed in the two ends of heating plate (1) and clamps heating plate (1).
6. heat flux sensor caliberating device according to claim 5, it is characterized in that, the end face at the two ends that two water cooled electrodes (21) are relative all offers strip slot, clamp assembly (3) is provided with in described strip slot, described clamp assembly (3) comprises two pieces and is arranged on strip slot both sides for clamping the clamping plate (31) of heating plate (1), and the part that described clamping plate (31) stretch out strip slot is provided with the block (32) propping up water cooled electrode (21).
7. heat flux sensor caliberating device according to claim 1 and 2, is characterized in that, is provided with cooling water pipe (22) in described water cooled electrode (21).
8. heat flux sensor caliberating device according to claim 1 and 2, is characterized in that, described heating plate (1) is graphite planar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510861304.1A CN105509931B (en) | 2015-11-30 | 2015-11-30 | A kind of heat flow transducer caliberating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510861304.1A CN105509931B (en) | 2015-11-30 | 2015-11-30 | A kind of heat flow transducer caliberating device |
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| CN105509931A true CN105509931A (en) | 2016-04-20 |
| CN105509931B CN105509931B (en) | 2019-02-15 |
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| CN201510861304.1A Active CN105509931B (en) | 2015-11-30 | 2015-11-30 | A kind of heat flow transducer caliberating device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907247A (en) * | 2017-11-27 | 2018-04-13 | 中国电子科技集团公司第四十八研究所 | A kind of big hot-fluid laser calibrating equipment |
| CN109269682A (en) * | 2018-09-27 | 2019-01-25 | 北京遥测技术研究所 | A kind of caliberating device and scaling method of heat flow transducer |
| CN111795762A (en) * | 2020-07-22 | 2020-10-20 | 南京理工大学 | Device and method for calibrating dynamic characteristics of heat flow meter |
| CN113804333A (en) * | 2021-08-24 | 2021-12-17 | 大连理工大学 | High-temperature heat flow sensor dynamic performance calibration device |
| CN114791325A (en) * | 2022-06-23 | 2022-07-26 | 中国飞机强度研究所 | Heat flow calibration method for testing ground thermal strength cabin of aerospace plane |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58214827A (en) * | 1982-06-07 | 1983-12-14 | Showa Denko Kk | Inspection of heat flow meter |
| CN101571428A (en) * | 2009-05-21 | 2009-11-04 | 中国科学院力学研究所 | Multi-function sensor and heat current and temperature measuring method under high temperature |
| CN104180929A (en) * | 2014-08-06 | 2014-12-03 | 山东省计算中心（国家超级计算济南中心） | Calibration method of thermal resistance type hot-fluid sensor |
| CN104215658A (en) * | 2014-08-20 | 2014-12-17 | 中国科学院力学研究所 | High-temperature heat conduction calibration method and high-temperature heat conduction calibration device |
-
2015
- 2015-11-30 CN CN201510861304.1A patent/CN105509931B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58214827A (en) * | 1982-06-07 | 1983-12-14 | Showa Denko Kk | Inspection of heat flow meter |
| CN101571428A (en) * | 2009-05-21 | 2009-11-04 | 中国科学院力学研究所 | Multi-function sensor and heat current and temperature measuring method under high temperature |
| CN104180929A (en) * | 2014-08-06 | 2014-12-03 | 山东省计算中心（国家超级计算济南中心） | Calibration method of thermal resistance type hot-fluid sensor |
| CN104215658A (en) * | 2014-08-20 | 2014-12-17 | 中国科学院力学研究所 | High-temperature heat conduction calibration method and high-temperature heat conduction calibration device |
Non-Patent Citations (3)
| Title |
|---|
| 刘初平: "《气动热与热防护试验热流测量》", 31 January 2013, 国防工业出版社 * |
| 尹福炎: ""热流传感器及其应用概况"", 《传感器世界》 * |
| 王前: "《自动检测技术》", 31 December 2013, 北京航空航天大学出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907247A (en) * | 2017-11-27 | 2018-04-13 | 中国电子科技集团公司第四十八研究所 | A kind of big hot-fluid laser calibrating equipment |
| CN107907247B (en) * | 2017-11-27 | 2019-10-25 | 中国电子科技集团公司第四十八研究所 | A kind of big hot-fluid laser calibrating equipment |
| CN109269682A (en) * | 2018-09-27 | 2019-01-25 | 北京遥测技术研究所 | A kind of caliberating device and scaling method of heat flow transducer |
| CN109269682B (en) * | 2018-09-27 | 2021-10-01 | 北京遥测技术研究所 | Calibration device and calibration method of heat flow sensor |
| CN111795762A (en) * | 2020-07-22 | 2020-10-20 | 南京理工大学 | Device and method for calibrating dynamic characteristics of heat flow meter |
| CN113804333A (en) * | 2021-08-24 | 2021-12-17 | 大连理工大学 | High-temperature heat flow sensor dynamic performance calibration device |
| CN114791325A (en) * | 2022-06-23 | 2022-07-26 | 中国飞机强度研究所 | Heat flow calibration method for testing ground thermal strength cabin of aerospace plane |
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| CN105509931B (en) | 2019-02-15 |
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