CN103675018A - Fabric thermal property tester - Google Patents
Fabric thermal property tester Download PDFInfo
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- CN103675018A CN103675018A CN201310476295.5A CN201310476295A CN103675018A CN 103675018 A CN103675018 A CN 103675018A CN 201310476295 A CN201310476295 A CN 201310476295A CN 103675018 A CN103675018 A CN 103675018A
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Abstract
The invention relates to a fabric thermal property tester. The fabric thermal property tester comprises three parts including an infrared image acquisition part, a signal measurement and temperature control cabinet and a data analysis and processing module. An infrared camera is used for acquiring an infrared image and sending the infrared image to a computer; a solid-state relay can be in control connection with a power supply switch of a heated fabric; a voltage measurement module and a current measurement module can be used for acquiring voltages at the two ends of the heated fabric and current flowing through the fabric; a heating property of the heated fabric can be obtained by analysis and comparison of a temperature image and consumption power. According to the fabric thermal property tester, the dynamic real-time measurement on a fabric surface temperature field can be realized; the heating property of the heated textile and indexes including heat-conducting properties and the like of the fabric can be measured; the fabric thermal property tester has the advantages of high precision, high measurement speed, simplicity in operation, comprehensive data information and the like.
Description
Technical field
The present invention relates to a kind of fabric thermal performance tester, comprise three parts of infrared image acquisition parts, signal measurement and temperature-controlled cabinet and data analysis processing module.Described infrared image acquisition is that thermal camera sends to computer by USB communication modes by the infrared temperature image of collection, described signal measurement and temperature-controlled cabinet have comprised RS232 communication module, voltage measurement module, current measurement module, relay module, current measurement module, direct supply, heating plate and temperature sensor, and described data analysis processing module comprises computer and Measurement and analysis software.This fabric thermal performance tester can be realized the dynamic real-time measurement in fabric face temperature field, can measure the indexs such as heat conductivility that add heating fabric heating properties and fabric, has that precision is high, measuring speed is fast, an advantage such as simple to operate and data message is comprehensive.
Background technology
The heat conductivility of fabric all has very important significance for the thermal comfort of clothes and other TECHNICAL FABRIC, yet existing surveying instrument all adopts regularly reading temperature data, finally obtain warming coefficient or the clo value of fabric, for fabric, for heat transfer process, but can not realize real-time monitoring.Patent (01208893.5) has been invented a kind of coefficient of heat conductivity that adopts the method mensuration material of water bath with thermostatic control; Patent (CN101226256A) has been invented a kind of material thermal conductivity measuring instrument of dual-flat plate, adopts digital temperature sensor to measure temperature, and Hall element is measured electric current; Patent (CN100950129Y) has been invented a kind of heat-pipe flat-plate type thermal conductivity coefficient measurement instrument, and feature is to adopt heat pipe-type soaking plate and the equal cold drawing of heat pipe-type to keep the constant of temperature; Patent (CN201212878) adopts accurate heating and thermocouple sensor to control temperature, realizes the measurement of the coefficient of heat conductivity of material.The thermal conductivity of above-mentioned patent is measured and aspect metering system and measurement index, is all being confined to simple thermal conductivity measurement, and can not control the dynamic temperature field change procedure in fabric heating process, the present invention is based on infrared video camera, constant temperature control box and software control system and developed the fabric thermal performance instrument that can monitor in real time fabric face change of temperature field.Within the scope of inventor, there are no realizing by constant temperature oven and infrared video camera the device of fabric thermal conductivity coefficient and heating fabric thermal performance parametric measurement.
Summary of the invention
The defect existing for prior art, the technical matters that quasi-solution of the present invention is determined is a kind of fabric thermal performance tester of development and Design, this instrument can be monitored fabric face temperature field in real time by thermal camera, by the temperature of heating source, temperature sensor, relay and corresponding software control temperature-constant plate, by voltage and current measurement measurement device, flow through the energy of fabric, thereby realize the measurement of Heat Transfer Coefficient of Fabric.
Another technical matters that will solve of the present invention is to adopt thermal camera to measure in real time the temperature field of heating fabric face, adds the heating properties of heating fabric by analyzing surface temperature distribution and temperature changing process evaluation.
Another technical matters that will solve of the present invention is the calibration between infrared image temperature and temperature sensor.
For solving the problems of the technologies described above, fabric thermal performance tester of the present invention comprise thermal camera be placed on heating plate directly over, and be connected with computer by usb communication line, the temperature sensor contacting with heating plate, direct supply, signal measurement module, relay etc. are encapsulated in a casing, the computer that the temperature signal measuring, voltage and current signal send by RS232 serial ports, controlling software can be to relay group transmitted square-wave signal to control the heating of heating plate by R232 serial ports.
As another kind of improvement of the present invention, by thermal camera, measure fabric at starting stage surface temperature change procedure, by lower floor's temperature of the temperature sensor measurement fabric on heating plate, coordinate high-precision current-voltage measurement instrument to measure the power that heating plate consumes, thereby realize Heat Transfer Coefficient of Fabric, measure.
Compared with prior art, the present invention not only can obtain Heat Transfer Coefficient of Fabric and add the heating properties parameter of heating fabric, and variation that can Real-time Obtaining fabric face temperature field, for the hot conduction mechanism of research fabric and the heating properties that adds heating fabric provide condition.The advantage such as meanwhile, the present invention also has simple in structure, processing ease, artifical influence factor is little, controllability is strong.
Accompanying drawing explanation
Fig. 1 is the overall appearance structural representation of a kind of embodiment of fabric thermal performance tester of the present invention
Fig. 2 is the measurement of a kind of embodiment of fabric thermal performance tester of the present invention and the element distribution plan of control module
Fig. 3 is the fundamental diagram of a kind of embodiment of fabric thermal performance tester of the present invention
Fig. 4 is the program flow diagram that the Heat Transfer Coefficient of Fabric of a kind of embodiment of fabric thermal performance tester of the present invention is measured
Fig. 5 is the program flow diagram of the heating fabric performance test of a kind of embodiment of fabric thermal performance tester of the present invention
Fig. 6 is the surface temperature infrared image that the measurement of a kind of embodiment of fabric thermal performance tester of the present invention adds heating fabric
Fig. 7 adds the temperature-rise period curve of heating fabric under the different capacity of a kind of embodiment of fabric thermal performance tester of the present invention
Fig. 8 is the consumed power that adds heating fabric of a kind of embodiment of fabric thermal performance tester of the present invention and the curve relation figure of surperficial maximum temperature
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof in detail the present invention is described in detail, but the present invention is not subject to the restriction of embodiment:
Fabric thermal performance tester of the present invention (referring to Fig. 1-3), comprises three parts of infrared image acquisition parts, signal measurement and temperature-controlled cabinet and data analysis processing module.Described infrared image acquisition has comprised thermal camera 14, back up pad 12, support column 13 and fixed screw 23, thermal camera 14 is fixed in back up pad 12, back up pad 12 can by the degree of tightness of screw 23, be fixed on support column 13 or easy on and off moves, and described support column 13 is fixed on heat insulation layer 11, heating plate 4 is heated plate 3 and surrounds, and there is heat insulation layer 11 to separate, at the back side of described heating plate 4 and heating plate 3 difference laying temperature sensor 8 and temperature sensor 7, plexiglass tent 2 be placed on heating plate 3 and heating plate 4 above and form a semi-enclosed space, on the right side of described plexiglass tent 2, placed the temperature sensor 4 for measures ambient temperature, control box 1 is divided into two-layer, and upper strata is the constant temperature oven forming between heating plate 3 and heating plate 4 and heating plate 5, and the upper surface of heating plate 5 has been placed a temperature sensor 9, lower floor is the confined space between heating plate 3 and base plate, measurement and control module 6 have been placed by portion within it, described measurement and control module 6 have comprised direct supply 19, reometer 20, temperature-measuring module 21, voltage table 22, RS232 serial port module 23 and relay module 24, described reometer 20, temperature-measuring module 21, voltage table 22 is connected with described RS232 serial port module 23 by signal wire with relay module 24, by power lead, be connected with described direct supply 19, described temperature sensor 7, 8, 9 are connected with temperature-measuring module 21 with 10, described RS232 serial port module is connected with described computer 17 by data-interface 15,
Described RS232 serial port module 23 is the signal transmission module of computer and described reometer 20, temperature-measuring module 21, voltage table 22 and relay module 24, and this interface also can adopt USB communication modes or other communication interface pattern.
The present invention has very high automaticity, also designed the specific program of Heat Transfer Coefficient of Fabric measurement (referring to Fig. 4) and heating fabric performance test (referring to Fig. 5), by gathering the infrared image of fabric face, obtain the temperature field (referring to Fig. 6) of fabric face, thereby PID module is calculated the switch of the heating square-wave signal pilot relay of heating plate and is controlled the stable of temperature of heating plate, flow through the electric current of well heater and voltage is also accurately measured and for calculating the power of consumption, with the two sides temperature difference of fabric and the circulation Q of heat, according to formula 1, be easy to calculate the coefficient of heat conductivity of fabric.
Wherein λ is coefficient of heat conductivity, and unit is (W/ (mK)), Q heat flux, and Δ t is the temperature difference on material two sides, the area that A is material, the thickness that d is material.
By infrared image, obtain the change procedure (referring to Fig. 7) that the time dependent process in fabric face temperature field and temperature field increase with fabric heating power, can draw the heat temperature raising speed of fabric and the relation (referring to Fig. 8) between hot face temperature and power, analysis by surface temperature field can obtain the indexs such as heating fabric face temperature homogeneity, thereby provides good condition for adding the performance evaluation of heating fabric.
This fabric thermal performance tester can be realized the dynamic real-time measurement in fabric face temperature field, can measure the indexs such as heat conductivility that add heating fabric heating properties and fabric, has that precision is high, measuring speed is fast, an advantage such as simple to operate and data message is comprehensive.
The flexible heating of the present invention textile system is not addressed part and is applicable to prior art.
Claims (6)
1. a fabric thermal performance tester.This fabric thermal performance tester comprises infrared image acquisition parts, signal measurement and temperature-controlled cabinet and three parts of data analysis processing module.Infrared image acquisition is that thermal camera sends to computer by USB communication modes by the infrared temperature image of collection; Described signal measurement and temperature-controlled cabinet have comprised RS232 communication module, voltage measurement module, current measurement module, relay module, current measurement module, direct supply, heating plate and temperature sensor, it is characterized in that relay module is as the electronic switch between heating plate and direct supply, coordinate with temperature sensor and control heating plate at design temperature, current measurement module and voltage measurement module can accurately be measured and flow through the electric current of heating plate and the voltage at two ends.Described data analysis processing module comprises computer and Measurement and analysis software, it is characterized in that Measurement and analysis software can carry out depth analysis processing to infrared image, monitoring in real time and the control temperature of heating plate and the power of consumption, and calculate the coefficient of heat conductivity of fabric or the heating properties that analysis adds heating fabric.
2. infrared image acquisition parts according to claim 1 (14), is characterized in that described thermal camera has the function of continuous shooting infrared image, and can be stored in computer by software reading images.
3. signal measurement according to claim 1 and temperature-controlled cabinet (1), is characterized in that described signal measurement and temperature-controlled cabinet can control the constant of temperature by heating plate, temperature sensor, relay and corresponding software.
4. data analysis processing module according to claim 1 (17), is characterized in that to temperature pattern, calibrating with environment temperature sensor (10).
5. according to claim 2 and infrared image acquisition parts claimed in claim 3 (14) and signal measurement and temperature-controlled cabinet (1), its feature can be by the heat-conduction coefficient of temperature difference and power consumption calculation fabric.
6. according to claim 2 and infrared image acquisition parts claimed in claim 4 (14) and data analysis processing module (17), it is characterized in that can be by temperature-rise period curve and the surface temperature distribution situation of the continuous graphical analysis fabric of taking.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310476295.5A CN103675018B (en) | 2013-10-10 | 2013-10-10 | Fabric thermal property tester |
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| CN201310476295.5A CN103675018B (en) | 2013-10-10 | 2013-10-10 | Fabric thermal property tester |
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| CN103675018A true CN103675018A (en) | 2014-03-26 |
| CN103675018B CN103675018B (en) | 2017-02-08 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297290A (en) * | 2014-10-29 | 2015-01-21 | 东北电力大学 | Heating infrared imaging silkworm cocoon gender identification method and device |
| CN105181651A (en) * | 2015-07-24 | 2015-12-23 | 中国计量学院 | Textile obverse and back surface infrared emission difference test method and device |
| CN105784760A (en) * | 2016-03-23 | 2016-07-20 | 广州纤维产品检测研究院 | Textile far-infrared irradiation temperature rise test instrument |
| CN107917930A (en) * | 2017-12-22 | 2018-04-17 | 浙江工贸职业技术学院 | A kind of textile instantaneous touch cool feeling performance detection apparatus based on body temperature and tactile |
| CN107957433A (en) * | 2018-01-12 | 2018-04-24 | 天津工业大学 | Textile thermal property test device and test method under a kind of low temperature environment |
| CN110220936A (en) * | 2019-06-03 | 2019-09-10 | 詹庆勇 | A kind of fabric fever tester |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297290A (en) * | 2014-10-29 | 2015-01-21 | 东北电力大学 | Heating infrared imaging silkworm cocoon gender identification method and device |
| CN104297290B (en) * | 2014-10-29 | 2016-10-05 | 东北电力大学 | The Sex in Silkworm Cocoons recognition methods of heated type infrared imaging and device thereof |
| CN105181651A (en) * | 2015-07-24 | 2015-12-23 | 中国计量学院 | Textile obverse and back surface infrared emission difference test method and device |
| CN105784760A (en) * | 2016-03-23 | 2016-07-20 | 广州纤维产品检测研究院 | Textile far-infrared irradiation temperature rise test instrument |
| CN105784760B (en) * | 2016-03-23 | 2018-07-24 | 广州纤维产品检测研究院 | A kind of textile Far-infrared spoke photograph temperature liter test equipment |
| CN107917930A (en) * | 2017-12-22 | 2018-04-17 | 浙江工贸职业技术学院 | A kind of textile instantaneous touch cool feeling performance detection apparatus based on body temperature and tactile |
| CN107957433A (en) * | 2018-01-12 | 2018-04-24 | 天津工业大学 | Textile thermal property test device and test method under a kind of low temperature environment |
| CN107957433B (en) * | 2018-01-12 | 2020-04-17 | 天津工业大学 | Device and method for testing thermal insulation performance of textile in low-temperature environment |
| CN110220936A (en) * | 2019-06-03 | 2019-09-10 | 詹庆勇 | A kind of fabric fever tester |
| CN110220936B (en) * | 2019-06-03 | 2021-11-23 | 詹庆勇 | Fabric heating tester |
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| CN103675018B (en) | 2017-02-08 |
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