CN201421387Y - Calibration device for high-range dynamic pressure sensor - Google Patents
Calibration device for high-range dynamic pressure sensor Download PDFInfo
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- CN201421387Y CN201421387Y CN2009200906148U CN200920090614U CN201421387Y CN 201421387 Y CN201421387 Y CN 201421387Y CN 2009200906148 U CN2009200906148 U CN 2009200906148U CN 200920090614 U CN200920090614 U CN 200920090614U CN 201421387 Y CN201421387 Y CN 201421387Y
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Abstract
The utility model discloses a calibration device for a high-range dynamic pressure sensor, which comprises a housing; at least two sensor interfaces, an oil cylinder and a plunger hole are formed on the housing; the plunger hole and the sensor interfaces are communicated; a plunger piston is arranged above the plunger hole; and a heavy hammer is arranged above the plunger piston and positioned ina guide rod. By adopting the technical scheme, the sizes and the weights of the devices for generating portable drop hammer pressure signals, such as the housing and the plunger piston, are greatly reduced; all parts can be quickly disassembled and assembled, thereby conveniently and quickly realizing calibration to the amplitude sensibility, the pulse duration, and the like to a high-range dynamic pressure sensor on the test site, greatly improving the measurement work efficiency, ensuring the accuracy of measure data and ensuring smooth on-site work. Additionally, glycerol in the oil cylinder is adopted as a transmission medium, which has incompressibility and can reduce energy loss.
Description
Technical field
The utility model belongs to a kind of calibrating installation, specifically relates to a kind ofly at the range test scene sensor be carried out the dynamic pressure transducer calibrating installation that sensitivity and pressure pulse rise time calibrate.
Background technology
Along with the development of various model cannons, warship canon is carried out, corresponding various target ranges emission test, parameter testing work are also carried out in succession.Wherein in test job, the gun pressure test is a very important job, and it is an important indicator of checking warship canon design success or not.And measure the dynamic pressure transducer that much belongs to high range with the gun pressure sensor, and its range ability can reach 600MPa, and pulsewidth is at Millisecond.Simultaneously, because the abominable of measurement environment, sensor very easily suffers damage, and therefore wishes to grasp constantly in the testing ground performance of sensor, to guarantee to obtain gun pressure data accurately.
Dynamic pressure is aligned in the collimation technique of comparative maturity scheme is arranged under the laboratory condition at present.As: shock tube, sinusoidal dynamic pressure calibration method and the calibration of quick-opening valve dynamic pressure etc.But, consider the on-the-spot requirements of using such as portability, versatility, reliability, environmental suitability, value size and traceability, be subjected to the restriction of environmental baseline and traffic condition, characteristics in conjunction with the cannon field calibration, field calibration is compared with the laboratory calibration and is more paid attention to solving actual engineering problem, combines tightr with project demands.Dynamic pressure calibration aspect generally adopts pulse and step pressure application at the scene, makes to produce the dynamic pressure variation in the calibration system, and the normative reference of calibration system is a standard pressure transducer.External Related product all adopts the method, and calibration accuracy is very high, but costs an arm and a leg, and is suitable for professional calibration laboratory and uses.At present domestic also have relevant research to the dynamic pressure collimation technique, but rest on theoretical research and laboratory calibration phase mostly, and the field calibration technical solution is not seen relevant data.
Summary of the invention
The purpose of this utility model provides a kind of high range, calibration accuracy height, dynamic pressure transducer calibrating installation that volume is little.
For achieving the above object, the utility model is by the following technical solutions:
The utility model comprises housing, and housing is provided with at least two sensor interfaces, oil cylinder and plunger hole, and plunger hole communicates with sensor interface, is provided with plunger above plunger hole; The top of above-mentioned plunger is provided with weight, and weight is positioned at guide pole.
Top at weight is provided with handle.
Engraved pressure/height relationships table on the above-mentioned guide pole.
Periphery at plunger, weight and guide pole is provided with guard shield, and guard shield is connected with housing.
Above-mentioned guard shield is provided with at least one vent port.
Above-mentioned housing is fixed on the chassis.
Adopt the utility model of technique scheme, the volume and weight of the portable pressure signal generating device that drops hammer such as housing and plunger has all had significantly minimizing, can realize between each parts disassembling fast and assembling, thereby can be implemented in amplitude sensitivity, the pulsewidth isoparametric calibration of testing ground easily and efficiently to the high range dynamic pressure transducer, improved surveying work efficient greatly, guaranteed the accuracy of measurement data, the carrying out smoothly of site test work.In addition, in the utility model, adopt glycerine as transmitting medium in oil cylinder, it has incompressibility, make energy loss still less.
Description of drawings
Accompanying drawing is an one-piece construction synoptic diagram of the present utility model.
Embodiment
As shown in drawings, the utility model comprises housing 3, and the both sides of housing 3 are respectively equipped with sensor interface, also is provided with oil cylinder and plunger hole on the housing 3 in addition.Wherein, two sensor interfaces are used for connecting standard transducer respectively and by the school sensor, plunger hole communicates with two sensor interfaces, is provided with plunger 2 above plunger hole, and the top of plunger 2 is provided with weight 6, and weight 6 is positioned at guide pole 1.
For guaranteeing safety, be provided with guard shield 5 in the periphery of plunger 2, weight 6 and guide pole 1, guard shield 5 and housing 3 are connected the i.e. end of housing 3 employing bolt form with thread forms.When field trial calibration dynamic pressure transducer, just can herein housing and guard shield be separated if desired, carrying is respectively assembled behind the experiment scene then, and is very portable.
For realizing the utility model better, guard shield 5 is provided with at least one vent port, and the quantity of vent port can be set according to actual needs, can be three, five, ten or even more a plurality of.When weight 6 fell, the pressurized air that form in the guard shield 5 were able to flow out from vent port fast, thereby have reduced the influence of air resistance to weight 6 fallings speed like this, made weight 6 whereabouts potential energy transform impact kinetic energy for coupled columns plug 2 to the full extent.
For easy to operate, be provided with handle 4 on the top of weight 6, on guide pole 1, engraved pressure/height relationships table, and housing 3 has been fixed on the chassis 7 of workbench effect.When dynamic pressure transducer is calibrated, only need manually mention handle 4, and then mention weight 6, and the height of mentioning can be selected with reference to pressure of engraving on the guide pole 1 and the relation table between the height, hand-held then held stationary as far as possible when dropping hammer, not to the people that drops hammer for imposing any external force, to guarantee to drop hammer desirable free-falling.Like this, weight falls to hitting plunger 2 once, can produce the pressure pulse of a semisinusoidal shape in oil cylinder.In the utility model, oil cylinder can adopt hydraulic cylinder.After weight 6 impacts plunger 2, it impacts, and potential energy is very fast have been passed to standard and by the correction force transducer by in-oil cylinder glycerine is almost break-even, thereby guaranteed to realize under the condition of minimum oil cylinder volume the generation of high pressure standard semisinusoidal impact signal, this provides the foundation and guarantee for the field calibration of dynamic pressure transducer.
In the utility model, housing 3 connects standard transducers, by the school sensor, and the splendid attire medium is finished the generation of pressure signal; Plunger 2 and weight 6 are finished the generation of pressure signal; Play the guiding role during 6 motions of 1 pair of weight of guide pole, there are scale decision weight 6 height on its surface.
The course of work of the present utility model is:
At first the utility model is lain on the worktable, with spanner housing 3 is separated with guard shield 5, with the regulation moment values standard pressure transducer is screwed into standard transducer interface on the housing 3 with special-purpose torque spanner, by the correction force transducer with hand be screwed on the housing 3 by correction force transducer interface, but do not tighten, reserve several screw threads; Then housing 3 is vertically placed, keep on it the plunger aperture up, extract plunger 2, from plunger hole, slowly pour glycerine into, promptly adopt glycerine as transmitting medium, it has incompressibility, make energy loss still less.When glycerine should be full of plunger hole substantially, with the plunger 2 about 5mm of plunger hole that packs into, with housing 3 horizontal positioned, rushed to by the school sensor, to be back-outed by the school sensor, the pull plunger 2 repeatedly, roughly the air in the emptying housing, when plunger 2 is fully retracted housing 3 basically, dress is full of oil by the Kong Zhongying of school sensor, as underfill, answers repairing to be full of, give and to be loaded onto gasket seal and to be screwed into housing, reserve about 0.5mm and tighten remaining emptying air when guaranteeing next step accurate oiling by the school sensor.Housing 3 is put into chassis 7, promptly tentatively finish oiling work.Housing 3 and guard shield 5 stable being connected as a single entity, put into chassis 7 annular grooves together with housing 3 and guard shield 5, and half-twist is in case housing 3 is deviate from chassis 7 with special spanner.Carrying handle 4 about 10mm height, light and slow hammering plunger 2 emptying air guarantee that guide pole 1 scale is shown as 6～8mm position, tighten by the school sensor this moment, promptly finishes accurate oiling work.
Guard shield 5 and oil cylinder housing 3 are assembled, the back is according to by the detected pressures of school sensor, selected height of drop in the table of comparisons, carrying handle is moved weight 6 to selected height, and height dimension is shown by the scale on the guide pole 1, decontrol handle 4 and make weight 6 free-fallings, weight 6 impacts plunger 2, generation pressure, two dynamically signal gathering analysis meter seizure and demonstrations automatically of pressure waveform quilt that pressure transducer is measured.
Claims (6)
1, a kind of high range dynamic pressure transducer calibrating installation, it is characterized in that: it comprises housing (3), described housing (3) is provided with at least two sensor interfaces, oil cylinder and plunger hole, and described plunger hole communicates with sensor interface, is provided with plunger (2) above plunger hole; The top of described plunger (2) is provided with weight (6), and weight (6) is positioned at guide pole (1).
2, high range dynamic pressure transducer calibrating installation according to claim 1 is characterized in that: be provided with handle (4) on the top of described weight (6).
3, high range dynamic pressure transducer calibrating installation according to claim 1 is characterized in that: engraved pressure/height relationships table on the described guide pole (1).
4, high range dynamic pressure transducer calibrating installation according to claim 3 is characterized in that: the periphery at described plunger (2), weight (6) and guide pole (1) is provided with guard shield (5), and guard shield (5) is connected with housing (3).
5, high range dynamic pressure transducer calibrating installation according to claim 4, it is characterized in that: described guard shield (5) is provided with at least one vent port.
6, high range dynamic pressure transducer calibrating installation according to claim 7, it is characterized in that: described housing (3) is fixed on the chassis (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200906148U CN201421387Y (en) | 2009-06-02 | 2009-06-02 | Calibration device for high-range dynamic pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200906148U CN201421387Y (en) | 2009-06-02 | 2009-06-02 | Calibration device for high-range dynamic pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201421387Y true CN201421387Y (en) | 2010-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200906148U Expired - Fee Related CN201421387Y (en) | 2009-06-02 | 2009-06-02 | Calibration device for high-range dynamic pressure sensor |
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| Country | Link |
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| CN (1) | CN201421387Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401707A (en) * | 2011-08-30 | 2012-04-04 | 湖南大学 | Dynamic concrete stress sensor and calibrating method based on piezoelectric ceramics |
| CN102620880A (en) * | 2012-03-31 | 2012-08-01 | 浙江理工大学 | Sensor fixing device for measuring unsteady force by utilizing shock waves to load and fix particle swarm |
| CN103175652A (en) * | 2013-03-12 | 2013-06-26 | 北京机械设备研究所 | Quasi-static calibration device for multichannel stress pressure sensors |
| CN103185658A (en) * | 2011-12-28 | 2013-07-03 | 中国航空工业集团公司北京长城计量测试技术研究所 | Periodic force loading device |
| CN103245458A (en) * | 2013-04-07 | 2013-08-14 | 北京机械设备研究所 | Half-sine quasi-static calibration device of force sensor |
| CN103712740A (en) * | 2014-01-09 | 2014-04-09 | 中国人民解放军总参谋部工程兵科研三所 | Dynamic high-pressure calibration device of flat type pressure sensor |
| CN105547582A (en) * | 2015-12-03 | 2016-05-04 | 中国航空工业集团公司北京长城计量测试技术研究所 | Portable pulse stress generator |
| CN106092437A (en) * | 2016-06-06 | 2016-11-09 | 北京航空航天大学 | A kind of small-sized piezoelectric dynamic force transducer calibration mechanism |
| CN106644264A (en) * | 2016-12-13 | 2017-05-10 | 国家海洋技术中心 | Calibration connection device for ocean pressure sensor |
| CN109443636A (en) * | 2018-11-13 | 2019-03-08 | 浙江大学 | A kind of dynamic response evaluating apparatus of strain-type pressure testing system |
| CN109946018A (en) * | 2019-04-25 | 2019-06-28 | 黑龙江大学 | A kind of dynamic calibration apparatus of the adjustable fibre optic compression sensor of range |
-
2009
- 2009-06-02 CN CN2009200906148U patent/CN201421387Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401707B (en) * | 2011-08-30 | 2013-08-14 | 湖南大学 | Dynamic concrete stress sensor and calibrating method based on piezoelectric ceramics |
| CN102401707A (en) * | 2011-08-30 | 2012-04-04 | 湖南大学 | Dynamic concrete stress sensor and calibrating method based on piezoelectric ceramics |
| CN103185658B (en) * | 2011-12-28 | 2015-05-20 | 中国航空工业集团公司北京长城计量测试技术研究所 | Periodic force loading device |
| CN103185658A (en) * | 2011-12-28 | 2013-07-03 | 中国航空工业集团公司北京长城计量测试技术研究所 | Periodic force loading device |
| CN102620880B (en) * | 2012-03-31 | 2013-11-06 | 浙江理工大学 | Sensor fixing device for measuring unsteady force by utilizing shock waves to load and fix particle swarm |
| CN102620880A (en) * | 2012-03-31 | 2012-08-01 | 浙江理工大学 | Sensor fixing device for measuring unsteady force by utilizing shock waves to load and fix particle swarm |
| CN103175652A (en) * | 2013-03-12 | 2013-06-26 | 北京机械设备研究所 | Quasi-static calibration device for multichannel stress pressure sensors |
| CN103245458A (en) * | 2013-04-07 | 2013-08-14 | 北京机械设备研究所 | Half-sine quasi-static calibration device of force sensor |
| CN103712740B (en) * | 2014-01-09 | 2016-05-18 | 中国人民解放军总参谋部工程兵科研三所 | Flat pressure sensor dynamic high-pressure calibrating installation |
| CN103712740A (en) * | 2014-01-09 | 2014-04-09 | 中国人民解放军总参谋部工程兵科研三所 | Dynamic high-pressure calibration device of flat type pressure sensor |
| CN105547582A (en) * | 2015-12-03 | 2016-05-04 | 中国航空工业集团公司北京长城计量测试技术研究所 | Portable pulse stress generator |
| CN106092437A (en) * | 2016-06-06 | 2016-11-09 | 北京航空航天大学 | A kind of small-sized piezoelectric dynamic force transducer calibration mechanism |
| CN106092437B (en) * | 2016-06-06 | 2019-01-22 | 北京航空航天大学 | A kind of small-sized piezoelectric dynamic force sensor caliberating mechanism |
| CN106644264A (en) * | 2016-12-13 | 2017-05-10 | 国家海洋技术中心 | Calibration connection device for ocean pressure sensor |
| CN109443636A (en) * | 2018-11-13 | 2019-03-08 | 浙江大学 | A kind of dynamic response evaluating apparatus of strain-type pressure testing system |
| CN109946018A (en) * | 2019-04-25 | 2019-06-28 | 黑龙江大学 | A kind of dynamic calibration apparatus of the adjustable fibre optic compression sensor of range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20180602 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |