CN106643789A - Control method of acceleration-temperature combination and calibration equipment - Google Patents
Control method of acceleration-temperature combination and calibration equipment Download PDFInfo
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- CN106643789A CN106643789A CN201610829996.6A CN201610829996A CN106643789A CN 106643789 A CN106643789 A CN 106643789A CN 201610829996 A CN201610829996 A CN 201610829996A CN 106643789 A CN106643789 A CN 106643789A
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
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Abstract
The invention provides a control method of acceleration-temperature combination and a piece of calibration equipment for executing the method. The calibration equipment is used for producing thermal environment with stable acceleration, high precision and wide region. The method comprises the following steps: when a precise centrifuge is stationary, temperature of a precise temperature control apparatus is controlled to be increased or decreased to a target temperature, when the precise centrifuge rotates, the temperature of the precise temperature control apparatus is kept to the temperature when the precise centrifuge is stationary, and acceleration of the precise temperature control apparatus is controlled to a target accelerated speed. Metering calibration requirements of inertial components in a thermal environment complex condition with stable acceleration, high precision and wide region are satisfied, and controlled acceleration and temperature have large ranges and high precision.
Description
Technical field
The present invention relates to a kind of compound control method of acceleration-temperature and its calibrator (-ter) unit, more particularly to one kind is used
Property the compound calibrator (-ter) unit of device configuration stable state acceleration and target temperature and its control method, belong to inertia device measurement and calibration
Technical field.
Background technology
The continuous development of inertial technology proposes higher and higher requirement to inertia measurement and calibration technology.Past is in single standard
Carrying out the work of measurement and calibration under input condition to inertia type instrument can not meet under complicated applications environment to inertia type instrument output
The magnitude tracing of amount.And, inertia device quantum property is compound with acceleration and thermal environment in the case of single acceleration effect
Under operative condition is different, i.e. the single acceleration or heat effect rule that can not pass through single obtains accurately acceleration
The rule of degree and thermal environment compound action.Therefore, the calibration that a kind of precision centrifuge and accurate attemperating unit are composited is developed
Equipment is very necessary.
In the research of compound calibrator (-ter) unit, focus predominantly stays in combined environment testing aspect, mainly including combinational environment
The testing equipment and test method of test.As combined low temperature low air pressure testing chamber, temperature low pressure vibration (sine) combined test chamber with
Temperature low pressure vibration (random) combined test chamber etc., is all the equipment about combined environment testing, it is of interest that reliability is tried
Test and functional test, and cannot be used for the measurement and calibration field of high accuracy inertia device, and these equipment complexes be all
Ground handling, it is impossible to for the centrifuge of high speed rotation output high acceleration.Rarely has the control of disclosed acceleration-temperature at present
The document of method processed and calibrator (-ter) unit.
The present invention controls the temperature of accurate attemperating unit when precision centrifuge is static and rises or be down to target temperature, Yi Ji
When precision centrifuge rotates, temperature when keeping the temperature of accurate attemperating unit to be in static, and control accurate attemperating unit
Acceleration is to aimed acceleration.So that being calibrated the common activation that inertia device is directly subject to high acceleration and heat, complete to be used to
The gamut temperature control of property device high order term coefficient or the calibration of temperature coefficient and acceleration.
The content of the invention
The invention discloses a kind of acceleration-temperature-controlled process and its calibrator (-ter) unit.By the method and calibrator (-ter) unit,
The compound condition of stable state acceleration and thermal environment can be constructed such that it is able to inertia device in acceleration and the compound work of thermal environment
Quantum property with carries out measurement and calibration with analysis.
The present invention is achieved by the following technical solutions：
The compound calibrator (-ter) unit of a kind of acceleration-temperature, it is characterised in that include：Precision centrifuge, accurate temperature control dress
Put, ground temperature control box, liquid nitrogen control system and pipeline；It is calibrated inertia device to be placed in accurate attemperating unit；Precision centrifugation
Machine is connected with accurate attemperating unit flange, there is provided required acceleration；Between ground temperature control box and accurate attemperating unit, liquid nitrogen control
Connected by pipeline between system processed and accurate attemperating unit；Institute when ground temperature control box provides static for accurate attemperating unit
The temperature for needing, temperature of the liquid nitrogen control system needed for for when accurate attemperating unit provides rotation.
The compound control method of a kind of acceleration-temperature, when precision centrifuge is static：By ground temperature control box control essence
The temperature of close attemperating unit is risen or fallen to target temperature, and when precision centrifuge rotates：By liquid nitrogen control system
Temperature when keeping the temperature of accurate attemperating unit to be in static, and fill accurate temperature control by controlling the rotating speed of precision centrifuge
The acceleration put is to aimed acceleration.
Specifically, when precision centrifuge is static, the temperature that accurate attemperating unit is controlled by ground temperature control box rise or
Target temperature is dropped to, step includes：
S1, connection ground temperature control box are connected with the heat exchange medium turnover of accurate attemperating unit, in making ground temperature control box
Heat exchange medium Jing pipelines and accurate attemperating unit form closed circuit；
S2, by control ground temperature control box in heat exchange medium temperature rise or decline, make to be followed in the temperature control box of ground
The dynamic heat exchange medium of circulation carries out heat exchange Jing after S1 with the air in accurate attemperating unit；
S3, when the air in accurate attemperating unit or it is calibrated the temperature of inertia device and rises or drop to target temperature
When, the connection of the ground temperature control box described in S1 and accurate attemperating unit is disconnected, stop hot described in circulation and S2 described in S1 friendship
Change.
Specifically, when precision centrifuge rotates, the temperature of accurate attemperating unit is kept to be in by liquid nitrogen control system
Temperature when static, and by controlling the rotating speed of precision centrifuge the acceleration of accurate attemperating unit is made to aimed acceleration, step
Suddenly include：
S4, the connection connected between liquid nitrogen control system and accurate attemperating unit；
S5, the influx of control liquid nitrogen make to be calibrated inertia in accurate attemperating unit to keep or micro adjusting box body temperature
The temperature of device be in precision centrifuge it is static when temperature value；
S6, start precision centrifuge (1), control precision centrifuge rotating speed, make in accurate attemperating unit be calibrated it is used
Property device reaches aimed acceleration.
A kind of calibrator (-ter) unit, the calibrator (-ter) unit is when precision centrifuge is static：Accurate temperature control is controlled by ground temperature control box
The temperature of device is risen or fallen to target temperature, and when precision centrifuge rotates：Essence is kept by liquid nitrogen control system
The temperature when temperature of close attemperating unit is in static, and make adding for accurate attemperating unit by controlling the rotating speed of precision centrifuge
Speed is to aimed acceleration.
The step of a kind of compound calibrator (-ter) unit of acceleration-temperature, equipment execution above-mentioned S1～S3；A kind of acceleration-
The compound calibrator (-ter) unit of temperature, the step of the equipment also performs above-mentioned S4～S6.
The present invention can obtain following beneficial effect：
Can be the combinational environment for being calibrated inertia device construction stable state acceleration and target temperature, that is, be calibrated inertia device
Part by precision centrifuge while accurate acceleration is obtained, moreover it is possible to obtain accurate temperature strip by accurate attemperating unit
Part such that it is able to which the quantum property to inertia device under acceleration and thermal environment compound action carries out measurement and calibration with analysis；
Meet the stable state acceleration of standard and thermal environment composition is calibrated the requirement that inertia device is combined calibration.Control
Acceleration and temperature range are big, high precision.
Description of the drawings
Fig. 1 shows the structural representation of calibrator (-ter) unit of the present invention.
Fig. 2 shows the acceleration-temperature-controlled process flow chart of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention will be further described.
Fig. 1 shows the structural representation of calibrator (-ter) unit of the present invention.A kind of compound calibrator (-ter) unit of acceleration-temperature, bag
Include：Precision centrifuge 1, accurate attemperating unit 2, ground temperature control box 3, liquid nitrogen control system 4, liquid nitrogen control system 4 and pipeline 5.
It is calibrated inertia device 6 to be placed in accurate attemperating unit 2.Precision centrifuge 1 is connected with the accurate flange of attemperating unit 2, there is provided
Required acceleration；Between ground temperature control box 3 and accurate attemperating unit 2, between liquid nitrogen control system 4 and accurate attemperating unit 2
Connected by pipeline 5；Temperature of the ground temperature control box 3 needed for for when accurate attemperating unit 2 provides static, liquid nitrogen control system
4 temperature needed for for when accurate attemperating unit 2 provides rotation.
Fig. 2 shows the compound control method flow chart of the acceleration-temperature of the present invention.Inertia device is calibrated in order to give
The combinational environment sheet of stable state acceleration and target temperature is constructed, the thinking of the acceleration-temperature-controlled process of invention is：In precision
When centrifuge 1 is static, the temperature for controlling accurate attemperating unit 2 by ground temperature control box 3 is risen or fallen to target temperature；And
When precision centrifuge 1 rotates, temperature when keeping the temperature of accurate attemperating unit 2 to be in static by liquid nitrogen control system 4,
And by controlling the rotating speed of precision centrifuge 1 acceleration of accurate attemperating unit 2 is made to aimed acceleration.So as to realize to precision
Quantum property of the inertia device 6 under acceleration and thermal environment compound action that be calibrated in attemperating unit 2 carries out measurement and calibration
With analysis.
When precision centrifuge 1 is static, i.e. in the T1 of Fig. 2, the temperature of accurate attemperating unit 2 is controlled by ground temperature control box 3
Degree is risen or fallen to target temperature, and step includes：
S1, connection ground temperature control box 3 are connected with the heat exchange medium turnover of accurate attemperating unit 2, in making ground temperature control box 3
Heat exchange medium Jing pipelines 5 and accurate attemperating unit 2 form closed circuit；
S2, by control ground temperature control box 3 in heat exchange medium temperature rise or decline, in making ground temperature control box 3
The heat exchange medium for circulating carries out heat exchange Jing after S1 with the air in accurate attemperating unit 2；
S3, when the air in accurate attemperating unit 2 or it is calibrated the temperature of inertia device 6 and rises or drop to target temperature
When spending, the connection of the ground temperature control box 3 described in S1 and accurate attemperating unit 2 is disconnected, stopped described in circulation and the S2 described in S1
Heat exchange.
When precision centrifuge 1 rotates, i.e. in the T2 of Fig. 2, accurate attemperating unit 2 is kept by liquid nitrogen control system 4
Temperature when temperature is in static, and by controlling the rotating speed of precision centrifuge 1 acceleration of accurate attemperating unit 2 is made to target
Acceleration, step includes：
S4, the connection connected between liquid nitrogen control system 4 and accurate attemperating unit 2；
S5, the influx of control liquid nitrogen make to be calibrated inertia in accurate attemperating unit 2 to keep or micro adjusting box body temperature
The temperature of device 6 be in precision centrifuge it is static when temperature value；
S6, start precision centrifuge 1, control precision centrifuge 1 rotating speed, make in accurate attemperating unit 2 be calibrated it is used
Property device 6 reaches aimed acceleration.
The compound calibrator (-ter) unit of above acceleration-temperature, under combining case, the 0～390m/ of scope of stable state acceleration
s2, acceleration analysis uncertainty 2.5 × 10-5；- 60 DEG C of temperature measurement range～85 DEG C, temperature deviation is better than 0.2 DEG C.
Claims (8)
1. the calibrator (-ter) unit that a kind of acceleration-temperature is combined, it is characterised in that include：Precision centrifuge (1), accurate temperature control dress
Put (2), ground temperature control box (3), liquid nitrogen control system (4) and pipeline (5)；It is calibrated inertia device (6) and is placed in accurate temperature control
In device (2)；Precision centrifuge (1) is connected with accurate attemperating unit (2) flange, there is provided required acceleration；Ground temperature control box
(3) and accurate attemperating unit (2) between, between liquid nitrogen control system (4) and accurate attemperating unit (2) by pipeline (5) company
Connect；Temperature of the ground temperature control box (3) needed for for when accurate attemperating unit (2) provides static, liquid nitrogen control system (4) is precision
Attemperating unit (2) provides required temperature during rotation.
2. the control method that a kind of acceleration-temperature is combined, it is characterised in that when precision centrifuge (1) is static：By ground
The temperature of the accurate attemperating unit (2) of temperature control box (3) control is risen or fallen to target temperature, and in precision centrifuge (1) rotation
When turning：Temperature when keeping the temperature of accurate attemperating unit (2) to be in static by liquid nitrogen control system (4), and by control
The rotating speed of precision centrifuge (1) makes the acceleration of accurate attemperating unit (2) to aimed acceleration.
3. the control method that temperature-acceleration according to claim 2 is combined, it is characterised in that in precision centrifuge (1)
When static, the temperature for controlling accurate attemperating unit (2) by ground temperature control box (3) is risen or fallen to target temperature, step bag
Include：
S1, connection ground temperature control box (3) are connected with the heat exchange medium turnover of accurate attemperating unit (2), make ground temperature control box (3)
In heat exchange medium Jing pipelines (5) and accurate attemperating unit (2) form closed circuit；
S2, by controlling ground temperature control box (3) in heat exchange medium temperature rise or decline, in making ground temperature control box (3)
The heat exchange medium for circulating carries out heat exchange Jing after S1 with the air in accurate attemperating unit (2)；
S3, when the air in accurate attemperating unit (2) or it is calibrated the temperature of inertia device (6) and rises or drop to target temperature
When spending, the ground temperature control box (3) described in S1 and the connection of accurate attemperating unit (2) are disconnected, stop the circulation described in S1 and S2
The heat exchange.
4. the control method that temperature-acceleration according to claim 2 is combined, it is characterised in that in precision centrifuge (1)
During rotation, temperature when keeping the temperature of accurate attemperating unit (2) to be in static by liquid nitrogen control system (4), and by control
The rotating speed of precision centrifuge (1) processed makes the acceleration of accurate attemperating unit (2) to aimed acceleration, and step includes：
S4, the connection connected between liquid nitrogen control system (4) and accurate attemperating unit (2)；
S5, the influx of control liquid nitrogen make to be calibrated inertia device in accurate attemperating unit (2) to keep or micro adjusting box body temperature
The temperature of part (6) be in precision centrifuge it is static when temperature value；
S6, startup precision centrifuge (1), control the rotating speed of precision centrifuge (1), make being calibrated in accurate attemperating unit (2)
Inertia device (6) reaches aimed acceleration.
5. the calibrator (-ter) unit that a kind of acceleration-temperature is combined, it is characterised in that the calibrator (-ter) unit is static in precision centrifuge (1)
When：The temperature for controlling accurate attemperating unit (2) by ground temperature control box (3) is risen or fallen to target temperature, and in precision
When centrifuge (1) rotates：Temperature when keeping the temperature of accurate attemperating unit (2) to be in static by liquid nitrogen control system (4),
And by controlling the rotating speed of precision centrifuge (1) acceleration of accurate attemperating unit (2) is made to aimed acceleration.
6. the calibrator (-ter) unit that a kind of acceleration-temperature according to claim 5 is combined, it is characterised in that perform such as right
Step in requiring 4.
7. the calibrator (-ter) unit that a kind of acceleration-temperature according to claim 5 is combined, it is characterised in that perform such as right
Step in requiring 5.
8. the compound calibrator (-ter) unit of acceleration-temperature according to any claim in claim 1,5,6,7, its feature
It is, under combining case, the 0～390m/s of scope of stable state acceleration2, acceleration analysis uncertainty 2.5 × 10-5；Temperature
- 60 DEG C of measurement range～85 DEG C, temperature deviation is better than 0.2 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610829996.6A CN106643789B (en) | 2016-09-18 | 2016-09-18 | A kind of control method and calibrator (-ter) unit that acceleration-temperature is compound |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610829996.6A CN106643789B (en) | 2016-09-18 | 2016-09-18 | A kind of control method and calibrator (-ter) unit that acceleration-temperature is compound |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108168810A (en) * | 2017-11-29 | 2018-06-15 | 中国航空工业集团公司沈阳飞机设计研究所 | Vibration characteristics tests system under a kind of hyperthermal environments |
| CN108827294A (en) * | 2018-07-12 | 2018-11-16 | 湖南科众兄弟科技有限公司 | The temperature-compensation method of inertial navigation system |
| CN110308309A (en) * | 2019-08-13 | 2019-10-08 | 中北大学 | A kind of high temperature resistant capacitive accelerometer and its wireless test verification platform |
| CN111895945A (en) * | 2020-07-21 | 2020-11-06 | 苏州久涛传感科技有限公司 | Displacement sensor with high temperature resistant shockproof structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168810A (en) * | 2017-11-29 | 2018-06-15 | 中国航空工业集团公司沈阳飞机设计研究所 | Vibration characteristics tests system under a kind of hyperthermal environments |
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| CN110308309A (en) * | 2019-08-13 | 2019-10-08 | 中北大学 | A kind of high temperature resistant capacitive accelerometer and its wireless test verification platform |
| CN110308309B (en) * | 2019-08-13 | 2021-06-22 | 中北大学 | High-temperature-resistant capacitive accelerometer and wireless test verification platform thereof |
| CN111895945A (en) * | 2020-07-21 | 2020-11-06 | 苏州久涛传感科技有限公司 | Displacement sensor with high temperature resistant shockproof structure |
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| CN106643789B (en) | 2018-10-02 |
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