CN107588886A - Bimodulus atmospheric pressure measurement device - Google Patents
Bimodulus atmospheric pressure measurement device Download PDFInfo
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- CN107588886A CN107588886A CN201610531839.7A CN201610531839A CN107588886A CN 107588886 A CN107588886 A CN 107588886A CN 201610531839 A CN201610531839 A CN 201610531839A CN 107588886 A CN107588886 A CN 107588886A
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Abstract
The present invention provides a kind of bimodulus atmospheric pressure measurement device for flight vehicle aerodynamic pressure measxurement, and the device is made up of multiple pressure taps, the first and second pressure capsule systems, the first and second data acquisition modules, the first and second data processing modules, the first and second signals selection module, multiple threeways.Pressure tap is located at aircraft body surface, configures a threeway at each pressure tap, and the pressure at pressure tap passes to the first and second pressure capsule systems by threeway.Each pressure measxurement of the complete independently to all pressure taps of first and second pressure capsule systems.First signal chooses module and is used to judge whether two paths of data collection signal is effective, it is if all effective, two paths of data collection signal is then delivered separately to the first and second data processing modules, the output valve of the first and second data processing modules passes to secondary signal and chooses module.The present invention has certain mechanism redundancy, and reliability improves.
Description
Technical field
The present invention relates to aircraft atmospheric pressure measurement device designing technique, and in particular to a kind of bimodulus atmospheric pressure measurement
Device, belong to flight vehicle aerodynamic field of measuring technique.
Background technology
Flight vehicle aerodynamic pressure measxurement determines aircraft guidance, the performance of control.Domestic and international aerospace aircraft
Such as fighter plane, space shuttle and spaceship return capsule, all need to carry out Pneumatic pressure measurement work.
Pneumatic pressure measurement thinking be by choosing multiple pressure taps in flight and arranging certain load cell,
Pass through Pneumatic pressure suffered during load cell sensitivity aircraft flight.These Pneumatic pressures can be applied to pneumatically
It is the offer supports such as guidance, control and the flight test data analysis of aircraft in the identification of coefficient.Pneumatic pressure as can be seen here
Power measurement is the committed step of Flight Vehicle Design.
At present, a set of pressure measuring system is comprised only in conventional measurement apparatus.The shortcomings that this measurement apparatus is to pressure measurement system
The reliability requirement of system is higher, because lacking backup, whole measurement apparatus failure is may result in when pressure measuring system goes wrong.
The content of the invention
It is an object of the invention to provide a kind of bimodulus atmospheric pressure measurement device for flight vehicle aerodynamic pressure measxurement, carry
The reliability of high atmospheric pressure measurement apparatus.
The purpose of the present invention is achieved through the following technical solutions：
A kind of bimodulus atmospheric pressure measurement device, for flight vehicle aerodynamic pressure measxurement, by multiple pressure taps, first pressure
Sensor-based system, second pressure sensor-based system, the first data acquisition module, the second data acquisition module, the first data processing module,
Second data processing module, the first signal choose module, secondary signal chooses module and multiple threeways composition；The pressure tap cloth
Put on aircraft body surface, one threeway of configuration at each described pressure tap, the pressure at all pressure taps
First and second pressure capsule system is passed to by the corresponding threeway；First and second pressure capsule system
For pressure measxurement of the respective complete independently to all pressure taps；The measured value of the first pressure sensor-based system passes to
First data acquisition module, the pressure measuring value of the second pressure sensor-based system pass to second data acquisition module
Block, two paths of data collection signal pass to first signal and choose module, and first signal chooses module and is used to judge two
Whether data acquisition signal described in road is effective, if all effectively, data acquisition signal described in two-way be delivered separately to described
First data processing module and second data processing module are handled, first and second data processing module it is defeated
Go out value and pass to the secondary signal selection module, the secondary signal chooses module and is used to first determine whether at first data
Manage whether the output signal of module is effective, the output valve of first data processing module is chosen if effectively as whole system
The output valve of system, otherwise choose output valve of the output valve of second data processing module as whole measuring system.
As the improvement of the above-mentioned bimodulus atmospheric pressure measurement device of the present invention, the first pressure sensor-based system is using integrated
Measurement system, the first pressure sensor-based system complete the pressure of all pressure taps using a high-precision pressure sensor
Measurement；The second pressure sensor-based system uses decentralized measure system, and the second pressure sensor-based system is by multiple pressure sensings
Device forms, and for each described one pressure sensor of pressure tap separate configurations, the pressure sensor is only responsible for measurement
Pressure data at the corresponding pressure tap.
As the further improvement of the above-mentioned bimodulus atmospheric pressure measurement device of the present invention, first and second pressure sensing
System is used for the absolute pressure for measuring all pressure tap inputs.
The bimodulus atmospheric pressure measurement device of the present invention has certain mechanism redundancy, is surveyed so as to improve atmospheric pressure
Measure the reliability of device.
Brief description of the drawings
Fig. 1 is the bimodulus atmospheric pressure measurement device composition figure of the present invention.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the bimodulus atmospheric pressure measurement device theory of constitution figure of the present invention.As shown in figure 1, the bimodulus of the present invention is big
Air pressure force measuring device is by multiple pressure taps, 2 sets of pressure capsule systems, 2 sets of data acquisition modules, 2 sets of data processing modules, 2
Individual signal chooses module and multiple threeways composition.
2 sets of data acquisition modules are the data acquisition module 1 and data acquisition module 2 in Fig. 1.
2 sets of data processing modules are the data processing module 1 and data processing module 2 in Fig. 1.
It is that the signal in Fig. 1 chooses module 1 and signal chooses module 2 that 2 signals, which choose module,.
It is a number of in aircraft body surface layout with reference to aerodynamic characteristics of vehicle according to the requirement of measurement accuracy
Pressure tap.A threeway is configured at each pressure tap, the pressure at all pressure taps passes to 2 casing pressures by corresponding threeway
Power sensor-based system.2 sets of pressure capsule systems of configuration, pressure measxurement of the respective complete independently to all pressure taps.2 sets of configuration
Pressure capsule system measurement system is as follows：1 set of pressure capsule system uses integral measuring system, that is, passes through 1 high-precision pressure
Sensor completes the pressure measxurement of all pressure taps；Other 1 set of pressure capsule system uses decentralized measure system, i.e., for each
One pressure sensor of pressure tap separate configurations, the corresponding special pressure sensor of each pressure tap, the pressure sensing
Device is only responsible for measuring the pressure data at the pressure tap.
The function of 2 sets of pressure capsule systems of the above is the absolute pressure of all pressure tap inputs of measurement.Body is measured by concentrating
The measured value of system passes to data acquisition module 1, and the pressure measuring value under decentralized measure system is passed into data acquisition module
2, two paths of data collection signal is passed into signal and chooses module 1, it is to judge two-way measurement letter that signal, which chooses the role of module 1,
Number whether effectively, if all effectively, two paths of signals is delivered separately to data processing module 1 and data processing module 2 is carried out
Processing, the output valve of two data processing modules is passed into signal and chooses module 2, the effect that signal chooses module 2 is to sentence first
Whether the output signal of disconnected data processing module 1 is effective, and the output valve of data processing module 1 is chosen if effectively as whole
The output valve of system, otherwise choose output valve of the output valve of data processing module 2 as whole measuring system.
The bimodulus atmospheric pressure measurement device of the present invention possesses following feature：First, in device for pressure measurement, containing 2 sets solely
The data processing modules of the pressure capsule system of vertical work, 2 sets of acquisition modules to work independently and 2 sets of autonomous workings；2nd, its
In 2 sleeve pressure sensors working method it is different, respectively centralized metering system and distributing metering system.
The atmospheric pressure measurement device of the present invention is different from conventional Pneumatic pressure measurement apparatus.The present invention is by a set of
2 sets of different pressure measuring systems are configured in measurement apparatus, reach the purpose for improving measurement apparatus reliability.
The present invention be applied to it is interplanetary enter/reenter, the atmospheric pressure of LEO reentry vehicle and aviation aircraft is surveyed
Amount.
Do not specified in the present invention and partly belong to techniques known.
Embodiments of the present invention are explained in detail above in association with accompanying drawing, but the present invention is not limited to described reality
Apply mode.For a person skilled in the art, without departing from the principles and spirit of the present invention to embodiment
The change, modification, replacement and modification of progress are still fallen within protection scope of the present invention.
Claims (3)
1. a kind of bimodulus atmospheric pressure measurement device, for flight vehicle aerodynamic pressure measxurement, it is characterised in that by multiple pressure measurement
Point, first pressure sensor-based system, second pressure sensor-based system, the first data acquisition module, the second data acquisition module, the first number
Module is chosen according to processing module, the second data processing module, the first signal, secondary signal chooses module and multiple threeways composition；
The Disposal of Pressure Detecting Point configures a threeway, all surveys at aircraft body surface, each described pressure tap
Pressure at pressure point passes to first and second pressure capsule system by the corresponding threeway；Described first and second
Pressure capsule system is used for pressure measxurement of the respective complete independently to all pressure taps；The first pressure sensor-based system
Measured value passes to first data acquisition module, and the pressure measuring value of the second pressure sensor-based system passes to described
Two data acquisition modules, two paths of data collection signal pass to first signal and choose module, and first signal chooses mould
Block is used to judge whether data acquisition signal described in two-way is effective, if all effectively, by data acquisition signal described in two-way point
Supplementary biography passs first data processing module and second data processing module is handled, first and second data
The output valve of processing module passes to the secondary signal and chooses module, and the secondary signal chooses module and is used to first determine whether institute
State whether the output signal of the first data processing module is effective, the output of first data processing module is chosen if effectively
It is worth the output valve as whole system, otherwise chooses the output valve of second data processing module as whole measuring system
Output valve.
2. bimodulus atmospheric pressure measurement device according to claim 1, it is characterised in that the first pressure sensor-based system
Using integral measuring system, the first pressure sensor-based system completes all pressure measurement using a high-precision pressure sensor
The pressure measxurement of point；The second pressure sensor-based system uses decentralized measure system, and the second pressure sensor-based system is by multiple
Pressure sensor forms, and for each described one pressure sensor of pressure tap separate configurations, the pressure sensor is only
It is responsible for the pressure data at the pressure tap corresponding to measurement.
3. bimodulus atmospheric pressure measurement device according to claim 1 or 2, it is characterised in that first and second pressure
Power sensor-based system is used for the absolute pressure for measuring all pressure tap inputs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610531839.7A CN107588886A (en) | 2016-07-06 | 2016-07-06 | Bimodulus atmospheric pressure measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610531839.7A CN107588886A (en) | 2016-07-06 | 2016-07-06 | Bimodulus atmospheric pressure measurement device |
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| Publication Number | Publication Date |
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| CN107588886A true CN107588886A (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610531839.7A Pending CN107588886A (en) | 2016-07-06 | 2016-07-06 | Bimodulus atmospheric pressure measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816126A (en) * | 2020-12-24 | 2021-05-18 | 中国飞行试验研究院 | Intelligent flexible pressure measuring belt for flight test |
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| CN202614450U (en) * | 2012-05-31 | 2012-12-19 | 西北工业大学 | Aircraft electric brake pressure transducer redundancy apparatus |
| CN103353715A (en) * | 2013-06-26 | 2013-10-16 | 许继集团有限公司 | Data transmission method for redundancy protection measurement and control of monitoring system |
| CN104038333A (en) * | 2013-03-07 | 2014-09-10 | 森萨塔科技公司 | Time synchronized redundant sensors |
| CN104318107A (en) * | 2014-10-27 | 2015-01-28 | 中国运载火箭技术研究院 | Method for acquiring high-precision atmosphere data of aircraft flying across atmospheric layer |
| CN105574271A (en) * | 2015-12-17 | 2016-05-11 | 中国航天空气动力技术研究院 | Active fault tolerant design method of FADS (flush air data sensing) system |
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2016
- 2016-07-06 CN CN201610531839.7A patent/CN107588886A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202614450U (en) * | 2012-05-31 | 2012-12-19 | 西北工业大学 | Aircraft electric brake pressure transducer redundancy apparatus |
| CN104038333A (en) * | 2013-03-07 | 2014-09-10 | 森萨塔科技公司 | Time synchronized redundant sensors |
| CN103353715A (en) * | 2013-06-26 | 2013-10-16 | 许继集团有限公司 | Data transmission method for redundancy protection measurement and control of monitoring system |
| CN104318107A (en) * | 2014-10-27 | 2015-01-28 | 中国运载火箭技术研究院 | Method for acquiring high-precision atmosphere data of aircraft flying across atmospheric layer |
| CN105574271A (en) * | 2015-12-17 | 2016-05-11 | 中国航天空气动力技术研究院 | Active fault tolerant design method of FADS (flush air data sensing) system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816126A (en) * | 2020-12-24 | 2021-05-18 | 中国飞行试验研究院 | Intelligent flexible pressure measuring belt for flight test |
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