CN209471145U - A kind of ultrasonic wind velocity indicator zero-point correction apparatus - Google Patents
A kind of ultrasonic wind velocity indicator zero-point correction apparatus Download PDFInfo
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- CN209471145U CN209471145U CN201920228360.5U CN201920228360U CN209471145U CN 209471145 U CN209471145 U CN 209471145U CN 201920228360 U CN201920228360 U CN 201920228360U CN 209471145 U CN209471145 U CN 209471145U
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- wind velocity
- velocity indicator
- ultrasonic wind
- clamshell
- correction apparatus
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Abstract
A kind of ultrasonic wind velocity indicator zero-point correction apparatus, including clamshell, the clamshell are equipped with ultrasonic wind velocity indicator via hole, and the clamshell includes left shell half and right half-shell, and the opposite end face of the left shell half and right half-shell is mutually spliced to form the clamshell.The ultrasonic wind velocity indicator zero-point correction apparatus structure is simple, easy to operate, and the means for correcting is arranged to detachable structure, and convenient for operation, and means for correcting is in air-tight state, ensure that accuracy and precision when ultrasonic wind velocity indicator carries out zero correction.In addition, pasting the reflection that ultrasonic wave is effectively reduced in sound-absorbing sponge inside the means for correcting, the influence of own transmission sound wave when ultrasonic wave work is prevented.
Description
Technical field
This application involves ultrasonic wind velocity indicator alignment technique fields more particularly to a kind of ultrasonic wind velocity indicator zero correction to fill
It sets.
Background technique
When the working principle of ultrasonic wind velocity indicator is that ultrasonic wave is propagated in air, due to the influence of wind speed, sound is in sky
The wind speed propagated in gas can generate variation.In a certain range, transmitting transducer emit signal, respectively with the wind with the feelings of contrary wind
Under condition, two signal time delay (time difference relative to transmitting signal) differences received by energy converter are received, when using this
Between difference carry out wind speed and direction measurement.
In signal processing, influenced by filter delay, transducer parameters difference etc., so that ultrasonic wind speed
Ambient wind velocity around instrument is 0, but the wind speed of ultrasonic wind velocity indicator actual measurement is not 0, this makes ultrasonic wind velocity indicator
Zero point value generate drift (that is, the numerical value of zero point changes).Null offset will seriously affect the measurement of ultrasonic wind velocity indicator
Precision, especially to small measuring wind speed when, the influence of null offset is particularly acute, in addition will thoroughly cause ultrasonic wind velocity indicator without
Method works normally, so needing to carry out zero correction to ultrasonic wind velocity indicator.
However, the existing method that school zero is carried out to ultrasonic wind velocity indicator be mostly ultrasonic wind velocity indicator factory before,
It is tested by manufacturing no-wind environment in wind-tunnel, records the reception signal and obtained wind of this moment ultrasonic wind velocity indicator
The case where fast wind direction, to realize school zero.However, by the variation of the use conditions such as temperature, humidity, or by misty rain, dust etc.
The influence of weather conditions, and influenced by factors such as energy converter fouling or abrasions, the zero point value of ultrasonic wind velocity indicator is often
Drift is generated, requires to re-scale its zero point in this case.Re-calibration is generally required ultrasonic wind speed
Instrument is disassembled from workplace, and ultrasonic wind velocity indicator is placed in wind-tunnel, and in the case where windless, is re-measured
The zero point value of ultrasonic wind velocity indicator, and then realize the zero correction of ultrasonic wind velocity indicator.
Therefore, the zero point correction method of the prior art needs to dismantle ultrasonic wind velocity indicator, could complete calibration, correction effect
Rate is lower and higher cost.
Utility model content
The purpose of the utility model is to provide a kind of ultrasonic wind velocity indicator zero-point correction apparatus, without deliberately disassembly ultrasound
Wave anemobiagraph can easily realize the school zero of ultrasonic wind velocity indicator.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is:
A kind of ultrasonic wind velocity indicator zero-point correction apparatus, including clamshell and acoustical cotton, the clamshell are equipped with a ultrasonic wave wind
Fast instrument via hole, the acoustical cotton are arranged on the clamshell inner wall.The clamshell includes left shell half and right half-shell, the left shell half
The clamshell is mutually spliced to form with the opposite end face of right half-shell.
Preferably, left splicing otic placode is arranged in the stitching portion of the left shell half, right spelling is arranged in the stitching portion of the right half-shell
Ear connecting plate, the left shell half and right half-shell are spliced to form the clamshell by the left splicing otic placode and the fixation of right splicing otic placode.
Preferably, the left splicing otic placode and right splicing otic placode are fixed by screw.
Preferably, further including wind deflector, the seam crossing of the left shell half and right half-shell is arranged in the wind deflector.
Preferably, being provided with sound-proof material on the wind deflector.
Preferably, the clamshell wall is equipped with the limiting slot of ultrasonic wind velocity indicator measurement arm.
Preferably, the clamshell outer wall is provided with several reinforcing ribs.
Compared with prior art, the utility model has the advantage that ultrasonic wind velocity indicator zero point described in the utility model
Means for correcting structure is simple, easy to operate, and the means for correcting is arranged to detachable structure, convenient for operation, and at means for correcting
In air-tight state, accuracy and precision when ultrasonic wind velocity indicator carries out zero correction ensure that.In addition, in the means for correcting
The reflection that ultrasonic wave is effectively reduced in sound-absorbing sponge is pasted in portion, has prevented the influence of own transmission sound wave when ultrasonic wave work.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit in any way disclosed by the utility model
Range.In addition, shape and proportional sizes of each component in figure etc. are only schematically, to be used to help the reason to the utility model
Solution is not the specific shape and proportional sizes for limiting each component of the utility model.Those skilled in the art is practical new at this
Under the introduction of type, various possible shapes and proportional sizes can be selected to implement the utility model as the case may be.Attached
In figure:
Fig. 1 is the structural schematic diagram of the ultrasonic wind velocity indicator zero-point correction apparatus of one specific embodiment of the utility model；
Fig. 2 is the structural schematic diagram of the clamshell of one specific embodiment of the utility model.
It is as shown in the figure: the left splicing otic placode of 11- left shell half, 12- right half-shell, 13-, the right splicing otic placode of 14-, 15- via hole, 16-
Limiting slot, 20- sound-absorbing sponge, 30- wind deflector, 40- reinforcing rib.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in the utility model, below in conjunction with this reality
With the attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that
The described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on the utility model
In embodiment, those of ordinary skill in the art's every other implementation obtained without making creative work
The range of the utility model protection all should belong in example.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not offered as being unique embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" includes
Any and all combinations of one or more related listed items.
Before ultrasonic wind velocity indicator factory, need to carry out zero correction in wind-tunnel.And due to being made by temperature, humidity etc.
It is influenced with the variation of condition, or by weather conditions such as misty rain, dust, and by the shadow of the factors such as energy converter fouling or abrasion
It rings, drift is often generated to the zero point value of measuring wind speed, require to carry out again ultrasonic wind velocity indicator in this case
Calibration.It re-scales general require to disassemble ultrasonic wind velocity indicator from workplace, and ultrasonic wind velocity indicator is placed
In wind-tunnel, in the case where windless, the zero point value of ultrasonic wind velocity indicator is re-measured, and then realize the zero of ultrasonic wind velocity indicator
Point correction.This zero point correction method needs to disassemble ultrasonic wind velocity indicator from workplace, will affect ultrasonic wave wind
The normal work of fast instrument, secondly, this zero point correction method needs the special test in the air absolute rest of ambient enviroment
Under occasion, calibration, higher cost could be completed.
Referring to Figure 1 and Fig. 2, a kind of ultrasonic wind velocity indicator zero-point correction apparatus, including clamshell and sound-absorbing sponge 20.It is described
Clamshell includes left shell half 11 and right half-shell 12, and the opposite end face of the left shell half 11 and right half-shell 12 is mutually spliced to form the shell
Cover.Left splicing otic placode 13 is arranged in the stitching portion of the left shell half 11, and right splicing otic placode 14 is arranged in the stitching portion of the right half-shell 12,
The left splicing otic placode 13 and right splicing otic placode 14 splice and are fixed by screw, so that the left shell half 11 and right half-shell 12 are spelled
It connects to form the clamshell.The clamshell is equipped with a ultrasonic wind velocity indicator via hole 15, and the via hole 15 is arranged in the seam crossing, just
It is dismantled in the clamshell, meanwhile, the clamshell inner wall is equipped with the limiting slot 16 of ultrasonic wind velocity indicator measurement arm, mounting ultrasonic wind
Position of the fast instrument in the means for correcting.The sound-absorbing sponge 20 has uniformly been sticked on the clamshell inner wall, prevents ultrasonic wave
Influence of the reflection to signal detection.
Ultrasonic wave is revealed in seam crossing in order to prevent, and the zero point alignment device further includes wind deflector 30, the wind deflector
30 are arranged in the seam crossing of the left shell half 11 and right half-shell 12, likewise, being provided with sound-absorbing sponge 20 on the wind deflector 30.
The clamshell outer wall is provided with several reinforcing ribs 40, reinforces the intensity of the clamshell, improves and uses the time, reduce at
This.
When needing to be corrected, the clamshell, the left shell half 11 and right half are installed for ultrasonic wind velocity indicator to be corrected
Shell 12 splices, the ultrasonic wind velocity indicator pass through the via hole 15 be arranged in the left shell half 11 and right half-shell 12 formed it is closed
It is intracavitary, ultrasonic wind velocity indicator local environment is isolated with atmospheric environment, avoids the environmental change of atmospheric environment to anemobiagraph school zero
Interference, ensure that ultrasonic wind velocity indicator carry out zero correction when accuracy and precision.Correction terminates, and removes the clamshell,
The ultrasonic wind velocity indicator can normal use, realize correction immediately, avoid disassembly ultrasonic wind velocity indicator, save the time, into
One step reduces cost.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except provided example all will be apparent for a person skilled in the art
's.Therefore, the range of this introduction should not be determined referring to foregoing description, but should referring to preceding claims and these
The full scope of the equivalent that claim is possessed determines.For comprehensive purpose, all articles and with reference to including patent
The disclosure of application and bulletin is all by reference to being incorporated herein.Appointing for theme disclosed herein is omitted in preceding claims
Where face is not intended to abandon the body matter, also should not be considered as applicant and the theme is not thought of as to disclosed reality
With a part of novel theme.
Claims (9)
1. a kind of ultrasonic wind velocity indicator zero-point correction apparatus, which is characterized in that including clamshell, the clamshell is equipped with ultrasonic wind speed
Instrument via hole, the clamshell include left shell half and right half-shell, and the opposite end face of the left shell half and right half-shell is mutually spliced to form institute
State clamshell.
2. ultrasonic wind velocity indicator zero-point correction apparatus according to claim 1, which is characterized in that the splicing of the left shell half
Left splicing otic placode is arranged in place, and right splicing otic placode, the left shell half and right half-shell is arranged described in the stitching portion of the right half-shell
Left splicing otic placode and the fixation of right splicing otic placode are spliced to form the clamshell.
3. ultrasonic wind velocity indicator zero-point correction apparatus according to claim 2, which is characterized in that the left splicing otic placode and
Right splicing otic placode is fixed by screw.
4. ultrasonic wind velocity indicator zero-point correction apparatus according to claim 1, which is characterized in that it further include wind deflector, institute
State the seam crossing that the left shell half and right half-shell is arranged in wind deflector.
5. ultrasonic wind velocity indicator zero-point correction apparatus according to claim 4, which is characterized in that be arranged on the wind deflector
There is sound-absorbing sponge.
6. ultrasonic wind velocity indicator zero-point correction apparatus according to claim 1, which is characterized in that set on the clamshell inner wall
There is the limiting slot of the measurement arm of ultrasonic wind velocity indicator.
7. ultrasonic wind velocity indicator zero-point correction apparatus according to claim 1, which is characterized in that the clamshell outer wall setting
There are several reinforcing ribs.
8. ultrasonic wind velocity indicator zero-point correction apparatus according to claim 1, which is characterized in that set on the clamshell inner wall
It is equipped with sound-absorbing sponge.
9. ultrasonic wind velocity indicator zero-point correction apparatus according to claim 1, which is characterized in that the ultrasonic wind velocity indicator
The seam crossing of the left shell half and right half-shell is arranged in via hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920228360.5U CN209471145U (en) | 2019-02-21 | 2019-02-21 | A kind of ultrasonic wind velocity indicator zero-point correction apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920228360.5U CN209471145U (en) | 2019-02-21 | 2019-02-21 | A kind of ultrasonic wind velocity indicator zero-point correction apparatus |
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| CN209471145U true CN209471145U (en) | 2019-10-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112433068A (en) * | 2020-10-19 | 2021-03-02 | 中科传启（苏州）科技有限公司 | Ultrasonic anemometer correction method and device |
-
2019
- 2019-02-21 CN CN201920228360.5U patent/CN209471145U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112433068A (en) * | 2020-10-19 | 2021-03-02 | 中科传启（苏州）科技有限公司 | Ultrasonic anemometer correction method and device |
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