CN106441358B - A kind of compound calibrating installation of centrifugation-air pressure - Google Patents
A kind of compound calibrating installation of centrifugation-air pressure Download PDFInfo
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- CN106441358B CN106441358B CN201610830337.4A CN201610830337A CN106441358B CN 106441358 B CN106441358 B CN 106441358B CN 201610830337 A CN201610830337 A CN 201610830337A CN 106441358 B CN106441358 B CN 106441358B
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- precision
- air pressure
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- centrifugation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
- G01C25/005—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass initial alignment, calibration or starting-up of inertial devices
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- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
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- Radar, Positioning & Navigation (AREA)
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- Measuring Fluid Pressure (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
The invention discloses a kind of calibrating installations that centrifugation air pressure is compound.The device includes precision centrifuge, porous flange and high-precision pneumatic pressure tank, and by porous flanged joint, the installation in the horn end of precision centrifuge, high-precision pneumatic pressure tank is calibrated inertia device to high-precision pneumatic pressure tank.Precision centrifuge generates linear stable state acceleration, and high-precision pneumatic pressure tank generates high-precision field of pressure, and the two acts on be calibrated on inertia device simultaneously, so as to carry out measurement and calibration and analysis to quantum property of the inertia device under complex parameter effect.The present invention meets measurement and calibration requirement of the inertia device under stable state high acceleration and high-precision air pressure combining case.Device structure is compact, using standardization parts, flexibly can install and dismantle, debugging maintenance is convenient.
Description
Technical field
The present invention relates to a kind of inertia device calibrating installation, more particularly to it is a kind of be inertia device construct stable state acceleration and
The calibrating installation of target air pressure environment belongs to inertia device measurement and calibration technical field.
Background technology
Currently, the continuous development of inertial technology proposes requirements at the higher level to inertia measurement and calibration technology.Past is in single standard
Carrying out the work of measurement and calibration in the case of input acceleration to inertia device cannot meet under complicated applications environment to inertia device
The magnitude tracing of output quantity.Moreover, inertia device quantum property is in single acceleration or single gas pressure and the two
It is different in the case of compound action, that is, can not be obtained by the single acceleration or gas pressure rule of single accurate
Rule under centrifugal acceleration and air pressure combining case.Therefore, it develops a kind of based on precision centrifuge and high-precision pneumatic pressure tank
Compound calibrating installation is very necessary.
In terms of compound calibrating installation research, current research predominantly stays in combined environment testing equipment development and experiment
In the realization of method.As combined low temperature low air pressure testing chamber, temperature low pressure vibration (sine) combined test chamber and temperature low pressure shake
Dynamic (random) combined test chamber etc. is all the device in relation to combined environment testing, it is of interest that reliability test and functional survey
Examination, and cannot be used for the measurement and calibration field of high-precision inertia device, and these set composites be all in ground handling, cannot
It is directly used on the precision centrifuge of high speed rotation output high acceleration.
Porous flange mounting surface is arranged in precision centrifuge arm end in the present invention, is fixedly connected by porous ring flange high-precision
Spend pneumatic pressure tank, be calibrated inertia device and be positioned in high-precision pneumatic pressure tank, when precision centrifuge rotates can directly by from
It is encouraged while heart acceleration and air pressure.
Invention content
The purpose of the present invention is provide a kind of calibration cartridge compound based on precision centrifuge and high-precision pneumatic pressure tank to society
Set, construct stable state high acceleration and high-precision air pressure combinational environment, so as to inertia device complex parameter effect under
Quantum property carry out measurement and calibration with analysis.
The object of the present invention is achieved like this：A kind of calibrating installation that centrifugation-air pressure is compound, including：Precision centrifuge,
Porous flange and high-precision pneumatic pressure tank, high-precision pneumatic pressure tank are connected firmly to the horn end of precision centrifuge by porous flange
End, high-precision pneumatic pressure tank is interior to be equipped with babinet, is installed in babinet and is calibrated inertia device.Precision centrifuge provides the big acceleration of stable state
Degree, high-precision pneumatic pressure tank provide high-precision field of pressure, and the two acts on be calibrated on inertia device simultaneously, can calibrate inertia
Air pressure sensitivity of the device under high acceleration is obtained and the close school of the true use environment of inertia device with this in laboratory
Standard is as a result, to improve the service precision of inertia device.
The main performance index of the compound calibrating installation of centrifugation-air pressure of invention is：Maximum steady state acceleration 2000m/s2,
Acceleration analysis uncertainty 2 × 10-5, barometric surveying range 1kPa~100kPa, air pressure deviation is better than 0.3Pa, stable gas pressure
Property 5.76Pa, barometric surveying uncertainty 7.8Pa.
The invention has the advantages that：
It can be the combinational environment for being calibrated inertia device construction stable state acceleration and high-precision field of pressure, that is, be calibrated
Inertia device by precision centrifuge while obtaining accurate acceleration, moreover it is possible to be obtained by high-precision pneumatic pressure tank accurate
Field of pressure, so as to carry out measurement and calibration to quantum property of the inertia device under acceleration and the effect of field of pressure combinational environment
With analysis；
Meet the requirement of the stable state acceleration and the reproduction of high-precision combinational environment that are calibrated inertia device in standard, equipment
Total arrangement is compact, and structural strength is big, using standardization parts, flexibly can install and dismantle, debugging maintenance is convenient；
Combinational environment range is big, precision is high.
Description of the drawings
Fig. 1 is the overall structure diagram of the compound calibrating installation of centrifugation-air pressure；
Fig. 2 is porous flange arrangement schematic diagram；
Fig. 3 is high-precision pneumatic pressure tank schematic diagram of base structure.
In figure：1- precision centrifuges, the porous flanges of 2-, 3- high-precision pneumatic pressure tanks, 11- horns end, the porous flange peaces of 12-
Dress face, 13- counterweights, 21- ring flanges, 22- flange mounting holes, 23- flange air pipes hole, 24- flange through-holes, 31- pedestals, 32-
Babinet mounting surface, 33- babinets, 34- pressure control components, 35- airflow pipelines, 301- are calibrated device installs fixture, the bottoms 302-
Seat mounting hole, 303- pedestal air pipes hole, 304- base plate through holes, 305- throughput control units, 306- air pressure observing and controlling components,
307- vacuum pumps, 308- rotary joints, 309- sealing structure for air inlet pipe.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings of the specification：
The overall structure diagram of the compound calibrating installation of centrifugation-air pressure as shown in Figure 1, including it is precision centrifuge 1, more
Hole flange 2 and high-precision pneumatic pressure tank 3, high-precision pneumatic pressure tank 3 are connected to the horn end of precision centrifuge 1 by porous flange 2
11, high-precision pneumatic pressure tank 3 is provided with babinet 33, is calibrated inertia device and is installed in babinet 33.Precision centrifuge 1 is to be calibrated
Inertia device provides large-scale high-precision acceleration, and high-precision pneumatic pressure tank 3 provides high-precision air pressure to be calibrated inertia device,
To realize the common activation to the high acceleration and high-precision air pressure that are calibrated inertia device.
The porous flange mounting surface 12 that precision centrifuge 1 is also equipped in horn end 11, with 11 horizontal diameter of horn end
It is equipped with counterweight 13 to the symmetrical other end.Wherein, porous flange mounting surface 12 is for installing the porous flange 2, counterweight 13
Both ends for balancing precision centrifuge 1, weight can be adjusted as needed.
High-precision pneumatic pressure tank 3 includes pedestal 31, babinet mounting surface 32, babinet 33.Wherein, pedestal 31 is for connecting porous method
Orchid 2.Babinet 33 is installed on pedestal 31 by the babinet mounting surface 32.It is calibrated inertia device to be placed in babinet 33, Ke Yitong
When by high-precision acceleration and air pressure collective effect, pass through and adjust acceleration and atmospheric pressure value, complete inertia device gamut
The calibration of the parameters such as the air pressure characteristic of range.
It is additionally provided in the babinet 33 and is calibrated inertia device installs fixture 301, effect is that fixation is calibrated inertia device
Part.
High-precision pneumatic pressure tank 3 further includes pressure control component 34 and airflow pipeline 35.The effect of pressure control component 34 is
Target air pressure is provided to babinet 33, so that the air pressure in pneumatic pressure tank is reached control and requires.Airflow pipeline 35 is connection pressure control portion
Channel between part 34 and babinet 33.Pressure control component 34 provides target air pressure by airflow pipeline 35 to babinet 33, including
Throughput control unit 305, air pressure observing and controlling component 306, vacuum pump 307, rotary joint 308 and air inlet pipe sealing mechanism 309.Its
In, throughput control unit 305 can select high-precision throughput controller；Air pressure observing and controlling component 306 can be selected individually
High-accuracy barometer or select and have the high-accuracy barometer of baroswitch；Rotary joint 308 ensure that precision from
When rotating or being static, vacuum pump 307 and the airflow pipeline 35 being connect with vacuum pump 307 can work normally, not by shadow for scheming 1
It rings.The connection vacuum pump 307 in turn switches on rotary joint 308, throughput control unit 305 and air pressure by airflow pipeline 35
After respective a pair of of the inlet and outlet of observing and controlling component 306 and babinet 33, then pass through air pressure observing and controlling component 306 and flow control successively
305 respective another pair of unit is imported and exported, and connection air inlet pipe sealing mechanism 309 forms an air pressure passageway.The function of each component
For：Air pressure observing and controlling component 306 is connected to babinet 33 by airflow pipeline 35, can measure the atmospheric pressure value in babinet 33；Vacuum pump
307 reduce the air pressure in babinet 33 by connecting the airflow pipeline 35 of babinet 33；Alternatively, pressure control component 34 can also lead to
The closed action for crossing control air inlet pipe sealing mechanism 309 carries out corresponding air inlet to increase the air pressure in babinet 33.307 institute of vacuum pump
Pumping body or air inlet pipe sealing mechanism 309 realized into the throughput of gas by throughput control unit 305.
Fig. 2 is porous flange arrangement schematic diagram.Porous flange 2 is by ring flange 21, flange mounting hole 22, flange air pipe hole
23 and flange through-hole 24 form.Wherein, the airflow pipeline 35 is laid in flange air pipe hole 24, to make precision centrifuge exist
When rotation, airflow pipeline 35 can be communicated with the babinet 33 of high-precision pneumatic pressure tank 3.Flange mounting hole 22 and flange through-hole 24 are for peace
The convenience of dress and firm and be arranged.
Fig. 3 is high-precision pneumatic pressure tank schematic diagram of base structure.Pedestal 31 is equipped with flange mounting hole 22 in quantity and ruler
Very little consistent corresponding base installing hole 302, thus flange mounting hole 22 and base installing hole 302, high-precision pneumatic pressure tank 3
Babinet 33 is fixedly connected with pedestal 31 and ring flange 21 by babinet mounting surface 32, so that precision centrifuge 1 passes through porous method
Orchid 2 is fixedly connected with accurate temperature control device 3.It is consistent right respectively with flange air pipe hole 23 and flange through-hole 24 to be additionally provided on pedestal 21
The pedestal air pipe hole 303 answered and base plate through holes 304.
The main performance index of the above compound calibrating installation of centrifugation-air pressure is as follows：Under combining case, maximum steady state accelerates
2000m/s2, acceleration analysis 2 × 10-5 of uncertainty, barometric surveying range 1kPa~100kPa are spent, air pressure deviation is better than
0.3Pa, stable gas pressure 5.76Pa, barometric surveying uncertainty 7.8Pa.
Claims (7)
1. a kind of calibrating installation that centrifugation-air pressure is compound, which is characterized in that including：Precision centrifuge (1), porous flange (2) and
High-precision pneumatic pressure tank (3), high-precision pneumatic pressure tank (3) by porous flanged joint in the horn end (11) of precision centrifuge (1),
High-precision pneumatic pressure tank (3) is equipped with babinet (33), is installed in babinet (33) and is calibrated inertia device；High-precision pneumatic pressure tank (3) is also set
It is equipped with airflow pipeline (35), and the pressure control of target air pressure is provided by the airflow pipeline (35) to the babinet (33)
Component (34)；The pressure control component (34) includes throughput control unit (305), air pressure observing and controlling component (306), vacuum pump
(307), rotary joint (308) and air inlet pipe sealing mechanism (309)；The vacuum pump (307) by airflow pipeline (35) successively
Rotary joint (308), throughput control unit (305) and respective a pair of of the inlet and outlet of air pressure observing and controlling component (306) are connected, and
It after babinet (33), then is imported and exported successively through air pressure observing and controlling component (306) and the respective another pair of flow controlling unit (305), even
Tracheae sealing mechanism (309) is tapped into, an air pressure passageway is formed.
2. the compound calibrating installation of centrifugation-air pressure according to claim 1, it is characterised in that：The throughput control unit
(305) it is high-precision throughput controller, the air pressure observing and controlling component (306) is individual high-accuracy barometer or has gas
The high-accuracy barometer of voltage-controlled system switch.
3. the compound calibrating installation of centrifugation-air pressure according to claim 1, it is characterised in that：High-precision pneumatic pressure tank (3) includes
Pedestal (31) and babinet mounting surface (32), pedestal (31) connect porous flange (2), and babinet mounting surface (32) installs babinet (33)
In on pedestal (31).
4. the compound calibrating installation of centrifugation-air pressure according to claim 1, it is characterised in that：Precision centrifuge (1) is in horn
End (11) is equipped with the porous flange mounting surface (12) for installing the porous flange (2), horizontal with horn end (11)
The other end of radial symmetric is equipped with the whole counterweight (13) of weight-adjustable.
5. the compound calibrating installation of centrifugation-air pressure according to claim 3, it is characterised in that：Porous flange (2) is by ring flange
(21), flange mounting hole (22), flange air pipe hole (23) and flange through-hole (24) composition；The pedestal (31) is equipped with and institute
State flange mounting hole (22), flange air pipe hole (23) and flange through-hole (24) the consistent corresponding pedestal in quantity and size
Mounting hole (302), pedestal air pipe hole (303) and base plate through holes (304).
6. the calibrating installation for going to require the 1 centrifugation-air pressure compound according to right, it is characterised in that：It is set in the babinet (33)
It is equipped with and is calibrated inertia device installs fixture (301).
7. the compound calibrating installation of centrifugation-air pressure according to claim 1, which is characterized in that the maximum of the calibrating installation
Stable state acceleration 2000m/s2, acceleration analysis uncertainty 2 × 10-5, barometric surveying range 1kPa~100kPa, air pressure deviation
Better than 0.3Pa, stable gas pressure 5.76Pa, barometric surveying uncertainty 7.8Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610830337.4A CN106441358B (en) | 2016-09-18 | 2016-09-18 | A kind of compound calibrating installation of centrifugation-air pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610830337.4A CN106441358B (en) | 2016-09-18 | 2016-09-18 | A kind of compound calibrating installation of centrifugation-air pressure |
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| Publication Number | Publication Date |
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| CN106441358A CN106441358A (en) | 2017-02-22 |
| CN106441358B true CN106441358B (en) | 2018-08-03 |
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| CN201610830337.4A Active CN106441358B (en) | 2016-09-18 | 2016-09-18 | A kind of compound calibrating installation of centrifugation-air pressure |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833017A (en) * | 2010-03-22 | 2010-09-15 | 西安交通大学 | Wireless calibration system of centrifugal micro-machine acceleration transducer |
| CN103777039A (en) * | 2014-01-10 | 2014-05-07 | 北京航空航天大学 | Centrifugal-temperature composite test box |
| CN104655876A (en) * | 2015-01-29 | 2015-05-27 | 北京航空航天大学 | Method for calibrating linear accelerometer under situations of constant acceleration and vibration composite input |
-
2016
- 2016-09-18 CN CN201610830337.4A patent/CN106441358B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833017A (en) * | 2010-03-22 | 2010-09-15 | 西安交通大学 | Wireless calibration system of centrifugal micro-machine acceleration transducer |
| CN103777039A (en) * | 2014-01-10 | 2014-05-07 | 北京航空航天大学 | Centrifugal-temperature composite test box |
| CN104655876A (en) * | 2015-01-29 | 2015-05-27 | 北京航空航天大学 | Method for calibrating linear accelerometer under situations of constant acceleration and vibration composite input |
Non-Patent Citations (2)
| Title |
|---|
| 加速度计校准技术综述;董雪明等;《计测技术》;20140402;第34卷(第4期);第8页2.4 * |
| 大g值条件下加速度计温度系数校准装置研制;董雪明等;《新技术新仪器》;20091231;第29卷(第6期);全文 * |
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| CN106441358A (en) | 2017-02-22 |
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