CN203502349U - Air-spray process pressure-sensitive paint response time measuring system - Google Patents
Air-spray process pressure-sensitive paint response time measuring system Download PDFInfo
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- CN203502349U CN203502349U CN201320425767.XU CN201320425767U CN203502349U CN 203502349 U CN203502349 U CN 203502349U CN 201320425767 U CN201320425767 U CN 201320425767U CN 203502349 U CN203502349 U CN 203502349U
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- sensitive paint
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Abstract
The utility model provides an air-spray process pressure-sensitive paint response time measuring system. The air-spray process pressure-sensitive paint response time measuring system comprises an air-spray generating device, a testing sample wafer, a dynamic pressure sensor, a laser, a photomultiplier and a data collection system, wherein the air-spray generating device is formed by connecting an air source to a stop valve, a pressure reducing valve and a fast valve sequentially through an air delivery pipe; the testing sample wafer is arranged directly in front of the fast valve of the air-spray generating device, the surface of the testing sample wafer is coated with pressure-sensitive paint, and the dynamic pressure sensor is embedded on the surface of the testing sample wafer; one side, which faces the testing sample wafer, of the air-spray generating device is provided with the laser and the photomultiplier, and stepped air-spray generated through the fast connection and disconnection of the fast valve of the air-spray generating device is sprayed toward the testing sample wafer; the photomultiplier and the dynamic pressure sensor are used for outputting signals to the data collection system. The air-spray process pressure-sensitive paint response time measuring system is simple in structure and easy to set up and can be used for determining the response time of the measured pressure-sensitive paint without complicated data treatment process.
Description
Technical field
The utility model relates to pressure sensitive paint performance measurement technology, particularly relates to air-spray method pressure sensitive paint system for measuring responsive time.
Background technology
Pressure-Sensitive Paint Technique is the advanced pressure measurement technology that the eighties in 20th century, the oxygen Quenching based on light emitting molecule (active component in pressure sensitive paint) grew up, and is subject to exciting light source excites glimmering light intensity or the life-span of launching to obtain air pressure by measurement light emitting molecule.Pressure sensitive paint technology has the advantages such as the impact of noncontact, stream field is little, spatial resolution is high, the test period is short, remarkable in economical benefits, has at home and abroad been subject to paying close attention to widely and applying, and develops very rapid.
Pressure sensitive paint is the material carrier of Pressure-Sensitive Paint Technique, plays the effect of pressure transducer.The performance of pressure sensitive paint is directly connected to the precision of its scope of application and measurement data, and specific performance index comprises absorption spectrum, emission spectrum, photodegradation rate, temperature control characteristic, pressure sensitivity characteristic, applicable temperature range, response time properties etc.
In the performance index of pressure sensitive paint, response time properties has determined pressure sensitive paint response pressure variation rapidly, and applicable tonometric test type (steady pressure is measured and non-steady pressure is measured), be very important performance index of pressure sensitive paint.Owing to measuring in test in non-steady pressure, model surface exists fast the even pressure of high frequency to change, so need pressure sensitive paint to there is the very short response time, could reproduce well pressure change procedure, and steady pressure measurement does not need pressure sensitive paint to have the characteristic of quick response.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of system to form simple, easily builds, and measures the air-spray method pressure sensitive paint system for measuring responsive time without complicated data handling procedure.
The technical scheme adopting is:
Air-spray method pressure sensitive paint system for measuring responsive time, comprise air-spray generating means, for spray pressure sensitive paint test print, be embedded in test print surface, the dynamic pressure transducer changing for monitoring test print surface pressing, for exciting the laser instrument of pressure sensitive paint emitting fluorescence, for gathering the photomultiplier of pressure sensitive paint emitting fluorescence signal, for gathering the data acquisition system (DAS) of dynamic pressure transducer and photomultiplier output signal.Described air-spray generating means connects successively stop valve, reduction valve and quick valve by air-source by gas piping and forms.Described test print is arranged on the quick valve dead ahead of air-spray generating means, and test print surface spraying has pressure sensitive paint, and dynamic pressure transducer is embedded in test print surface.In the face of test print arranges laser instrument and photomultiplier in air-spray generating means one side, the laser prolonged exposure test print of laser instrument transmitting.The quick valve of described air-spray generating means, the staged air-spray directive producing by quick break-make test print.Described photomultiplier and dynamic pressure transducer export signal to data acquisition system (DAS).
The measurement of air-spray method pressure sensitive paint response time, the step comprising is as follows:
Step 1, cleaner assay print surface, sprays tested pressure sensitive paint and dries, and treats, after paint solidification, dynamic pressure transducer is imbedded to the measured hole of testing print surface;
Step 4, opens stop valve, regulates reduction valve to the output pressure of setting, and opens quick valve, produces staged air-spray, and test print is subject to air-spray and impacts, and surface pressing produces staged to be changed;
Principle of work of the present utility model
Continous way LASER Light Source, to carrying out prolonged exposure near the position of burying dynamic pressure transducer underground on test print, excites pressure sensitive paint to launch fluorescence; Utilizing air-spray that staged that air-spray generating means produces changes on test print surface, to be subject to position that light source irradiates produces stepped pressure and changes; Photomultiplier detects pressure sensitive paint photoluminescence intensity in real time; The dynamic pressure transducer receiving by analysis data acquisition system (DAS) and the measurement data of photomultiplier, obtain the response time of pressure sensitive paint, the response time of tested pressure sensitive paint is that dynamic pressure transducer detects the moment that pressure starts to occur staged variation, the time between the moment of the fluorescence intensity change 90% gathering to photomultiplier.
The utility model has the advantages that:
1 system forms simple, easily builds;
2 measuring principles are simple, can determine the response time of tested pressure sensitive paint without complicated data handling procedure.
Accompanying drawing explanation
Fig. 1 is pressure sensitive paint system for measuring responsive time schematic diagram of the present utility model.
Embodiment
Air-spray method pressure sensitive paint system for measuring responsive time, comprise air-spray generating means, for spray pressure sensitive paint test print 5, be embedded in test print surface, the dynamic pressure transducer 6 changing for monitoring test print 5 surface pressings, for exciting the laser instrument 7 of pressure sensitive paint emitting fluorescence, for gathering the photomultiplier 8 of pressure sensitive paint emitting fluorescence signal, for gathering the data acquisition system (DAS) 9 of dynamic pressure transducer and photomultiplier output signal.Described air-spray generating means connects successively stop valve 2, reduction valve 3 and quick valve 4 by air-source 1 by gas piping and forms.Described test print 5 is arranged on quick valve 4 dead aheads of air-spray generating means, and test print 5 surface sprayings have pressure sensitive paint, and dynamic pressure transducer 6 is embedded in test print 5 surfaces.In the face of test print 5 arranges laser instrument 7 and photomultiplier 8 in air-spray generating means one side, the laser prolonged exposure test print 5 of laser instrument 7 transmittings.The quick valve 4 of described air-spray generating means, the staged air-spray directive producing by quick break-make test print 5.Described photomultiplier 8 and dynamic pressure transducer 6 export signal to data acquisition system (DAS) 9.
The measurement of air-spray method pressure sensitive paint response time, the step comprising is as follows:
1, before test, cleaner assay print 5 surfaces, spray tested pressure sensitive paint and dry, and treat, after paint solidification, dynamic pressure transducer 6 is imbedded to the measured hole of testing print surface;
2, test print 5 is fixed on to quick valve 4 the place aheads, and by covering have pressure sensitive paint one facing to quick valve air stream outlet, open laser instrument 7, adjust the position of laser instrument, make Ear Mucosa Treated by He Ne Laser Irradiation on test print and facula position as far as possible near pick-up hole;
3, open photomultiplier 8, by the light-sensitive surface alignment test print 5 of photomultiplier by the region of Ear Mucosa Treated by He Ne Laser Irradiation;
4, open stop valve 2, regulate reduction valve 3 to the output pressure of setting, open quick valve 4, produce staged air-spray, test print is subject to air-spray and impacts, and surface pressing produces staged to be changed;
5, by data acquisition system (DAS) 9, receive the data of dynamic pressure transducer 6 and photomultiplier 8, analyze the data of dynamic pressure transducer 6 and photomultiplier 8, determine the response time of tested pressure sensitive paint.The response time of tested pressure sensitive paint is that dynamic pressure transducer detects the moment that pressure starts to occur staged variation, the time between the moment of the fluorescence intensity change 90% gathering to photomultiplier.Described formation air-spray method pressure sensitive paint system for measuring responsive time.
Claims (1)
1. air-spray method pressure sensitive paint system for measuring responsive time, comprise air-spray generating means, for spraying the test print (5) of pressure sensitive paint, be embedded in test print surface, the dynamic pressure transducer (6) changing for monitoring test print surface pressing, for exciting the laser instrument (7) of pressure sensitive paint emitting fluorescence, for gathering the photomultiplier (8) of pressure sensitive paint emitting fluorescence signal, for gathering the data acquisition system (DAS) (9) of dynamic pressure transducer and photomultiplier output signal, it is characterized in that described air-spray generating means connects stop valve (2) by air-source (1) successively by gas piping, reduction valve (3) and quick valve (4) form, described test print (5) is arranged on quick valve (4) dead ahead of air-spray generating means, test print (5) surface spraying has pressure sensitive paint, dynamic pressure transducer (6) is embedded in test print (5) surface, in the face of test print (5) arranges laser instrument (7) and photomultiplier (8) in air-spray generating means one side, the laser prolonged exposure test print (5) of laser instrument (7) transmitting, the quick valve of described air-spray generating means (4), the staged air-spray directive test print (5) producing by quick break-make, described photomultiplier (8) and dynamic pressure transducer (6) export signal to data acquisition system (DAS) (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320425767.XU CN203502349U (en) | 2013-07-17 | 2013-07-17 | Air-spray process pressure-sensitive paint response time measuring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320425767.XU CN203502349U (en) | 2013-07-17 | 2013-07-17 | Air-spray process pressure-sensitive paint response time measuring system |
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| Publication Number | Publication Date |
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| CN203502349U true CN203502349U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320425767.XU Expired - Fee Related CN203502349U (en) | 2013-07-17 | 2013-07-17 | Air-spray process pressure-sensitive paint response time measuring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353449A (en) * | 2013-07-17 | 2013-10-16 | 中国航空工业集团公司沈阳空气动力研究所 | Air-jet method pressure-sensitive coating response time measuring system |
| CN105928697A (en) * | 2016-06-17 | 2016-09-07 | 上海新力动力设备研究所 | Gas valve response time measuring device and method |
-
2013
- 2013-07-17 CN CN201320425767.XU patent/CN203502349U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353449A (en) * | 2013-07-17 | 2013-10-16 | 中国航空工业集团公司沈阳空气动力研究所 | Air-jet method pressure-sensitive coating response time measuring system |
| CN105928697A (en) * | 2016-06-17 | 2016-09-07 | 上海新力动力设备研究所 | Gas valve response time measuring device and method |
| CN105928697B (en) * | 2016-06-17 | 2019-06-11 | 上海新力动力设备研究所 | A kind of gas valve response time measuring device and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20210717 |
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| CF01 | Termination of patent right due to non-payment of annual fee |