CN86206199U - Calibrator for environmental barometer - Google Patents
Calibrator for environmental barometer Download PDFInfo
- Publication number
- CN86206199U CN86206199U CN198686206199U CN86206199U CN86206199U CN 86206199 U CN86206199 U CN 86206199U CN 198686206199 U CN198686206199 U CN 198686206199U CN 86206199 U CN86206199 U CN 86206199U CN 86206199 U CN86206199 U CN 86206199U
- Authority
- CN
- China
- Prior art keywords
- snorkel
- ambient pressure
- screen cloth
- filter
- depressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a calibrator for environmental barometer, which can be used with the barometer and can directly measure the air pressure of environment in usual natural environment and especially in a wind field. The utility model comprises a pressure filter, and an anemometer having the function of error correction. Multi-ply mesh screens surrounding the air conveying pipes, and rigidity porous external layers of the pressure filter can consume the additional vector pressure component of the air pressure of environment. So the static air pressure of environment under measuring can be accurately measured. The utility model is suitable for long, continuous, accurate, and direct measurement of the air pressure of environment in outdoor telemetrying or self recording system. The utility model can also be applied in the system relating to measuring or analysis of the air pressure.
Description
The utility model belongs to the improvement of ambient pressure Detection Techniques and equipment.
Generally all require certain environmental baseline, particularly can not in wind field, carry out with barometric surveying air pressure.Up to now, in physical environment, for example in the ocean, human footmarks such as lakes and marhshes, desert, grassland, plateau seldom to or the place that can not live for a long time of the mankind, unless take special measure, construction can be satisfied the facility of measurement environment condition, otherwise it almost is impossible for a long time, continuously, accurately, directly measuring air pressure in these places.
Task of the present utility model is that design is a kind of simple in structure, can cooperate barometer under the general nature condition, especially can directly carry out the ambient pressure meter means for correcting that ambient pressure is measured in wind field.
This means for correcting plays the system that the anemoscope of error correction effect is formed by a filter depressor and one, as shown in Figure 1.The key of this means for correcting is to filter the structure of depressor.It has the snorkel that is drilled with the entrance pressure hole above, and snorkel is surrounded on the center by a several layers screen cloth and a rigidity porous outer layer wall.
This means for correcting combines use with barometer.Ambient pressure depressor after filtration passes to barometrical pressure transducer.Atmospheric pressure value that is recorded by pressure transducer and the air speed value that recorded by anemoscope be the corresponding interface of input air pressure meter microprocessor simultaneously, microprocessor is except that obtaining same instantaneous air pressure, air speed value, also according to the filter depressor wind speed---pressure characteristic (the P-V curve that is obtained by demarcation) is revised atmospheric pressure value, thereby obtains real ambient pressure.
The parts of the cylindrical shape that the filter depressor is made up of snorkel, several layers screen cloth, rigidity porous outer layer wall, end cap and base, as shown in Figure 2.Snorkel is the hollow tubular of a length more than or equal to cylinder height, and upper end closed inserts end cap, and the middle part has several circumference along pipe evenly to line up the entrance pressure hole of a circle, and the lower end is passed base and is communicated with barometrical pressure transducer by conduit.The diameter in the entrance pressure hole on the snorkel is below the 0.5mm, and being enclosed within the outer screen cloth of snorkel generally should be more than 5 layer.Outermost layer is made outer wall with the rigidity porosint.
The principle of this means for correcting is as follows:
The pressure of filter depressor outside surface is by a scalar static pressure component P(real pressure to be measured) and a vector pressure component P(additonal pressure) form.Since rigidity porous outer layer wall and multilayer screen cloth topped the entrance pressure hole, vector pressure component P is consumed, and has only static pressure component P can enter the entrance pressure hole and measured.
In physical environment,,, form a suction district at filter depressor rear, thereby a negative pressure error P can occur because a part of wind flows around the right cylinder outside surface though the most of wind in the wind field enters rigidity porous outer layer wall, screen layer.Because pressure error P and wind speed V have corresponding relation, thus can by anemoscope according to filter depressor wind speed---pressure characteristic is revised.Used anemoscope can use three glasss of general anemoscopes.
This means for correcting be owing to will work in various physical environments, thereby the base of filter depressor should make upwards convex, and is for example conical, is beneficial to get rid of the moisture on the filter depressor.
The filter depressor should have performances such as sufficiently high physical strength and mildew-resistant be against corrosion.Its snorkel, screen cloth, end cap, base can adopt copper, stainless steel, alloy or physical strength height, the metal material that is difficult for corrosion, nylon or engineering plastics, and rigidity porous outer layer wall adopts the manufacturing of rigidity porosint.Snorkel, screen cloth preferably adopt stainless steel material, rigidity porous outer layer wall preferably adopts powder metallurgy bronze porosint, end cap and base preferably adopt nylon material, whole filter depressor is at snorkel, screen cloth and rigidity porous outer layer wall respectively after the completion of processing, global formation in processing end cap and base.
Use this means for correcting and carry out the ambient pressure measurement, do not have specific (special) requirements using environmental baseline.As an overall applicability, can not bring any additional measuring error.Not requiring in measuring accuracy can be without anemoscope only with the filter depressor under the very high situation, and the error amount that at this moment records ambient pressure in the fresh gale field is about 0.3 hundred handkerchiefs.The utility model is flexible and convenient to use, is applicable in open-air remote measurement or the Self recording System ambient pressure is carried out for a long time, continuously, accurately, directly measure, and can promotes the use of in relevant gas pressure measurement and the analytic system.
Accompanying drawing 1 is for being equipped with the ambient pressure meter block scheme of this means for correcting.Wherein 1 is the filter depressor, and 2 is anemoscope, and 3 is barometer.
Accompanying drawing 2 is the cut-open view of filter depressor.Wherein 4 is snorkel, and 5 is the entrance pressure hole, and 6 is screen cloth, and 7 is rigidity porous outer layer wall, and 8 is end cap, and 9 is base.
An embodiment of the present utility model is a system that is made of filter depressor and anemoscope.Anemoscope adopts three glasss of general anemoscopes.The height and the diameter proportion of filter depressor are 2.5:1, the snorkel overall diameter is 4-5mm, snorkel middle part is along the circumference entrance pressure hole that to be evenly distributed with 8 diameters be 0.1mm, snorkel has 10 layers of screen cloth outward, screen cloth has the rigidity porous outer layer wall of being made by powder metallurgy bronze porosint outward, and base becomes taper shape upwards.Snorkel and screen cloth are made with nylon material with stainless steel material, end cap and base.
Claims (8)
1, a kind of barometer that cooperates is under the general nature environment, especially can in wind field, directly carry out the ambient pressure meter means for correcting that ambient pressure is measured, it is characterized in that said means for correcting is made up of a filter depressor and an anemoscope that plays the error correction effect, the filter depressor has the snorkel that is drilled with the entrance pressure hole above, and snorkel is surrounded by a several layers screen cloth and a rigidity porous outer layer wall.
2, according to the described ambient pressure meter of claim 1 means for correcting, it is characterized in that said filter depressor is made of the parts of a cylindrical shape snorkel, several layers screen cloth, rigidity porous outer layer wall, end cap and base, be surrounded on the snorkel of center by screen cloth and outer wall, upper end closed, insert end cap, the middle part has several circumference along pipe evenly to line up the entrance pressure hole of a circle, and base is passed in the lower end, is communicated with barometrical pressure transducer by conduit.
3,, it is characterized in that the said outer screen cloth of filter depressor snorkel that is enclosed within is more than 5 layers according to claim 1 or 2 described ambient pressure meter means for correctings.
4, according to claim 1 or 2 described ambient pressure meter means for correctings, it is characterized in that the entrance pressure bore dia on the said filter depressor snorkel is below the 0.5mm.
5, according to claim 1 or 2 described ambient pressure meter means for correctings, the snorkel, screen cloth, end cap and the base that it is characterized in that said filter depressor can adopt copper, stainless steel, alloy or physical strength height, the metal material that is difficult for corrosion, nylon or engineering plastics, rigidity porous outer layer wall adopts the manufacturing of rigidity porosint, snorkel, screen cloth preferably adopt stainless steel material, rigidity porous outer layer wall preferably adopts powder metallurgy bronze porosint, and end cap and base preferably adopt nylon material to make.
6, according to the described ambient pressure meter of claim 2 means for correcting, it is characterized in that the base of said filter depressor is made upwards convex, for example conical.
7, according to the described ambient pressure meter of claim 2 means for correcting, it is characterized in that said filter depressor, after snorkel, screen cloth and rigidity porous outer layer wall difference completion of processing, global formation in processing end cap and base.
8,, it is characterized in that said filter depressor does not require when very high and can use separately under the situation of anemoscope not having in measuring accuracy according to claim 1 or 2 described ambient pressure meter means for correctings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198686206199U CN86206199U (en) | 1986-08-22 | 1986-08-22 | Calibrator for environmental barometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198686206199U CN86206199U (en) | 1986-08-22 | 1986-08-22 | Calibrator for environmental barometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86206199U true CN86206199U (en) | 1987-06-03 |
Family
ID=4808890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198686206199U Withdrawn CN86206199U (en) | 1986-08-22 | 1986-08-22 | Calibrator for environmental barometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86206199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832572A (en) * | 2013-07-15 | 2014-06-04 | 中国特种飞行器研究所 | Novel air speed self-adaption pressure regulation and control method |
-
1986
- 1986-08-22 CN CN198686206199U patent/CN86206199U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832572A (en) * | 2013-07-15 | 2014-06-04 | 中国特种飞行器研究所 | Novel air speed self-adaption pressure regulation and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |