CN105486452A - Comparison-type calibration method for shock wave measurement - Google Patents
Comparison-type calibration method for shock wave measurement Download PDFInfo
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- CN105486452A CN105486452A CN201511027590.8A CN201511027590A CN105486452A CN 105486452 A CN105486452 A CN 105486452A CN 201511027590 A CN201511027590 A CN 201511027590A CN 105486452 A CN105486452 A CN 105486452A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
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Abstract
The invention relates to the field of shock wave measurement methods and techniques, specifically to a comparison-type calibration method for shock wave measurement. The comparison-type calibration method comprises the following steps of: 1) clamping ballistic rifles with different calibers on a fixed shooting platform; 2) placing a calibrated noise measurement system and a shock wave measurement system to be calibrated at equal distance respectively from left and right sides of the ballistic rifles in the shooting direction; 3) conducting shooting via the ballistic rifles with different calibers, and simultaneously acquiring, in real time, shock waves generated by the calibrated noise measurement system and the shock wave measurement system to be calibrated during the ball firing; 4) performing statistics of acquired mass data, and figuring out a linear regression equation about a noise peak and a shock wave peak; and 5) correcting, by using the linear regression equation in the step (4), the shock wave pressure peak acquired after the measurement. The comparison-type calibration method of the invention comprehensively improves the shock wave measurement precision and solves the problem that there is no way to carry out field calibration for shock wave measurement.
Description
Technical field
The present invention relates to shock wave method of testing technical field, be specifically related to a kind of shock wave test comparison-type scaling method.
Background technology
The demarcation that shock wave test macro carries out in national measurement department completes in standard laboratory, and the sensitivity of demarcation can only represent the relation between pressure under this kind of environment and voltage.In the wild under working environment, there is sizable difference in the condition of work of shock wave test macro and laboratory.Because the sensitivity of shock wave test macro is very large by the impact of environmental factor, each test condition can not be identical simultaneously, therefore in order to improve the precision of test macro, needs to test front on-site proving to it.In demarcating at the scene, universal method adopts high explosive to produce shock wave as pressure source, the moment arrived by measuring shock waves and the output signal of test macro, and then obtain the charge sensitivity of system.There is larger danger in high explosive explosion time, test macro is excessively closely subject to destruction, crosses the test request not meeting again distance shock wave source 2 meters far away.In addition, the preparation of high explosive is more loaded down with trivial details, and the shock wave peak value produced is by calculating.Although equivalent is the same, but because the uneven meeting brought during mixing causes the shock wave peak value of explosion time different directions there are differences, even if this difference is little, but seriously can reduce stated accuracy as the use of demarcation source, military standard requirement cannot be met through its calibrated test system and test precision at all.
Summary of the invention
For above prior art Problems existing, the present invention adopts a kind of shock wave to test comparison-type scaling method, adopt shock wave test comparison-type scaling method can specify cloth station in strict accordance with military standard, demarcation state and test mode are consistent, both ensure that stated accuracy, also prevent the unsafe problems that explosive charge brings, the present invention selects different bore ballistic rifle, generate shock wave peak value from small to large, utilize the existing noise measuring system comparison-type that can realize on-site proving to demarcate shock wave test macro.Not only achieve shock wave test macro nominal pressure with by the close engineering test requirement of measuring pressure, the function correction relation set up by timing signal data also can General Promotion measuring accuracy.
The technical solution used in the present invention is:
A kind of shock wave test comparison-type scaling method, is characterized in that: comprise the steps:
(1) different bore ballistic rifle is clamped on fixed fire platform;
(2) by calibrated noise measuring system and the equidistant left and right sides being arranged at ballistic rifle rifle road firing direction of shock wave test macro to be calibrated;
(3) shot respectively by the ballistic rifle of different bore, now noise measuring system and shock wave test macro to be calibrated are to the synchronous Real-time Collection of the shock wave produced during ball firing;
(4) mass data collected is added up, calculate noise peak and shock wave peak value linearly regression equation;
(5) equation of linear regression in step (4) is used to revise to the shock wave pressure peak value after test.
Preferably, described fixed fire platform comprises the first fixed station, the second fixed station, holder, the first set collar and the second set collar, and described first set collar and the second set collar are arranged on holder.
Preferably, described ballistic rifle comprises 5.8mm bore ballistic rifle, 7.62mm bore ballistic rifle and 12.7mm bore ballistic rifle.
The invention has the beneficial effects as follows: the invention provides and establish comparison-type demarcation facilities and equipment cloth station scheme, solving shock wave test cannot an on-site proving difficult problem.The scaling method of the test of shock wave more accurately established, the inventive method be compare with calibrated noise measuring system, the shock wave test macro do not demarcated and noise measuring system are carried out information acquisition simultaneously, the demarcation source that the present invention adopts is the ballistic rifle of different bore, at the formation shock wave that all directions are accurately consistent, test result can be made more accurate, the data of noise measuring system and shock wave test macro that utilize provided by the invention arrange in addition, draw equation of linear regression therebetween, and using the demarcation correction of this equation of linear regression as shock wave test result, thus make test result more accurate, General Promotion shock wave measuring accuracy, meet military standard ± 1dB measuring accuracy requirement.
Accompanying drawing explanation
Fig. 1 is fixed fire platform structural representation of the present invention;
Fig. 2 is embodiment of the present invention noise criteria source data figure;
Fig. 3 is embodiment of the present invention shock wave data plot to be calibrated;
Fig. 4 is noise and shock wave homologous thread figure.
In figure, 1-first fixed station 2-second fixed station 3-holder 4-first set collar 5-second set collar.
Embodiment
Below in conjunction with accompanying drawing, concrete introduction is done to the present invention once:
The invention provides a kind of shock wave test comparison-type scaling method, comprise the steps:
(1) different bore ballistic rifle is clamped on fixed fire platform;
(2) by calibrated noise measuring system and the equidistant left and right sides being arranged at ballistic rifle rifle road firing direction of shock wave test macro to be calibrated;
(3) shot respectively by the ballistic rifle of different bore, now noise measuring system and shock wave test macro to be calibrated are to the synchronous Real-time Collection of the shock wave produced during ball firing;
(4) mass data collected is added up, calculate noise peak and shock wave peak value linearly regression equation;
(5) equation of linear regression in step (4) is used to revise to the shock wave pressure peak value after test
As shown in Figure 1, described fixed fire platform comprises the first fixed station 1, second fixed station 2, holder 3, first set collar 4 and the second set collar 5, and described first set collar and the second set collar are arranged on holder.
Wherein, described ballistic rifle comprises 5.8mm bore ballistic rifle, 7.62mm bore ballistic rifle and 12.7mm bore ballistic rifle.
As shown in figs. 2 to 4, for the present invention is at one group of data plot of real test example, by to collect as Fig. 2 noise criteria source data and Fig. 3 shock wave data to be calibrated, do to obtain as shown in Figure 4 in same coordinate axis, carry out calculating its equation of linear regression Y=1.0331x-2.6227 according to measured data, wherein x is that shock wave measured value Y is for demarcating revised impact wave number, value after correction achieves ± 1dB measuring accuracy requirement, solve a shock wave test macro on-site proving difficult problem, General Promotion shock wave measuring accuracy.
Claims (3)
1. shock wave test comparison-type scaling method, is characterized in that: comprise the steps:
(1) different bore ballistic rifle is clamped on fixed fire platform;
(2) by calibrated noise measuring system and the equidistant left and right sides being arranged at ballistic rifle rifle road firing direction of shock wave test macro to be calibrated;
(3) shot respectively by the ballistic rifle of different bore, now noise measuring system and shock wave test macro to be calibrated are to the synchronous Real-time Collection of the shock wave produced during ball firing;
(4) mass data collected is added up, calculate noise peak and shock wave peak value linearly regression equation;
(5) equation of linear regression in step (4) is used to revise to the shock wave pressure peak value after test.
2. shock wave test comparison-type scaling method according to claim 1, it is characterized in that: described fixed fire platform comprises the first fixed station, the second fixed station, holder, the first set collar and the second set collar, described first set collar and the second set collar are arranged on holder.
3. shock wave test comparison-type scaling method according to claim 1, is characterized in that: described ballistic rifle comprises 5.8mm bore ballistic rifle, 7.62mm bore ballistic rifle and 12.7mm bore ballistic rifle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027590.8A CN105486452B (en) | 2015-12-31 | 2015-12-31 | Shock wave tests comparison-type scaling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027590.8A CN105486452B (en) | 2015-12-31 | 2015-12-31 | Shock wave tests comparison-type scaling method |
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| Publication Number | Publication Date |
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| CN105486452A true CN105486452A (en) | 2016-04-13 |
| CN105486452B CN105486452B (en) | 2018-11-13 |
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| CN201511027590.8A Expired - Fee Related CN105486452B (en) | 2015-12-31 | 2015-12-31 | Shock wave tests comparison-type scaling method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487546A (en) * | 2018-05-10 | 2019-11-22 | 上汽通用汽车有限公司 | Gearbox beat noise test method, test device and evaluation method |
Citations (7)
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| US20060044943A1 (en) * | 2004-08-24 | 2006-03-02 | Bbnt Solutions Llc | System and method for disambiguating shooter locations |
| CN101111778A (en) * | 2004-08-24 | 2008-01-23 | Bbn科技有限公司 | Compact shooter localization system and method |
| CN102213637A (en) * | 2010-04-08 | 2011-10-12 | 鸿富锦精密工业（深圳）有限公司 | Impact test device and impact test method |
| CN203310600U (en) * | 2013-07-02 | 2013-11-27 | 哈尔滨工业大学 | Cylinder-shaped equivalent loading experimental device of non-explosive underwater explosion explosive shock waves |
| CN103822753A (en) * | 2014-03-20 | 2014-05-28 | 武汉科技大学 | Pressure testing device for explosive shock wave in simulated deep water environment explosion test container |
| CN203657633U (en) * | 2014-01-08 | 2014-06-18 | 董高庆 | High-accuracy bullet flight parameter testing system |
| CN104034505A (en) * | 2014-06-04 | 2014-09-10 | 南京理工大学 | Test system and test method for underwater explosion impact equivalent loading experiment |
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2015
- 2015-12-31 CN CN201511027590.8A patent/CN105486452B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060044943A1 (en) * | 2004-08-24 | 2006-03-02 | Bbnt Solutions Llc | System and method for disambiguating shooter locations |
| CN101111778A (en) * | 2004-08-24 | 2008-01-23 | Bbn科技有限公司 | Compact shooter localization system and method |
| CN102213637A (en) * | 2010-04-08 | 2011-10-12 | 鸿富锦精密工业（深圳）有限公司 | Impact test device and impact test method |
| CN203310600U (en) * | 2013-07-02 | 2013-11-27 | 哈尔滨工业大学 | Cylinder-shaped equivalent loading experimental device of non-explosive underwater explosion explosive shock waves |
| CN203657633U (en) * | 2014-01-08 | 2014-06-18 | 董高庆 | High-accuracy bullet flight parameter testing system |
| CN103822753A (en) * | 2014-03-20 | 2014-05-28 | 武汉科技大学 | Pressure testing device for explosive shock wave in simulated deep water environment explosion test container |
| CN104034505A (en) * | 2014-06-04 | 2014-09-10 | 南京理工大学 | Test system and test method for underwater explosion impact equivalent loading experiment |
Non-Patent Citations (1)
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| 郭炜: "冲击波压力传感器灵敏度的动态校准", 《火炸药学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487546A (en) * | 2018-05-10 | 2019-11-22 | 上汽通用汽车有限公司 | Gearbox beat noise test method, test device and evaluation method |
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