CN109901245A - A kind of comprehensive wind speed calibrating installation of Atmospheric Survey - Google Patents

A kind of comprehensive wind speed calibrating installation of Atmospheric Survey Download PDF

Info

Publication number
CN109901245A
CN109901245A CN201910353148.6A CN201910353148A CN109901245A CN 109901245 A CN109901245 A CN 109901245A CN 201910353148 A CN201910353148 A CN 201910353148A CN 109901245 A CN109901245 A CN 109901245A
Authority
CN
China
Prior art keywords
wind speed
wind
wind direction
calibration
calibrating installation
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.)
Pending
Application number
CN201910353148.6A
Other languages
Chinese (zh)
Inventor
刘潇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201910353148.6A priority Critical patent/CN109901245A/en
Publication of CN109901245A publication Critical patent/CN109901245A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses a kind of comprehensive wind speed calibrating installations of Atmospheric Survey, belong to meteorological detection field, the air velocity transducer resolution ratio for solving existing wind speed calibrating installation is low, the problem of leading to calibration difficulties, it is characterized in that: including sizing stop, wind speed calibrating installation and wind direction calibrating installation are installed on the sizing stop, the wind speed calibrating installation includes wind speed calibration cylinder, wind speed shaft and vane, wind speed calibrates connection calibration cover at the top of cylinder, wind speed shaft is equipped with inside calibration cover, vane lid is connected at the top of wind speed shaft, vane lid side is connected with vane by connecting rod;By being equipped with wind speed calibrating installation and wind direction calibrating installation on sizing stop, it is respectively used to the measurement of wind direction and the measurement of wind speed, to carry out the operation of wind speed, wind direction calibration, comprehensive measurement wind speed, wind direction can be carried out, it is easy for installation to be conducive to use in Atmospheric Survey.

Description

A kind of comprehensive wind speed calibrating installation of Atmospheric Survey
Technical field
The present invention relates to meteorological detection fields, are specifically related to a kind of comprehensive wind speed calibrating installation of Atmospheric Survey.
Background technique
Atmospheric temperature and moisture profile mainly pass through the spaceborne or big temperature of ground microwave as important meteorologic parameter at present Moisture profile survey meter is detected;By obtaining the bright temperature information of atmospheric sounding, to measure the temperature and humidity of atmosphere.It should The round-the-clock acquisition global atmosphere Vertical Temperature of survey meter energy and moisture profile obtain and the strong convective weathers phenomenons such as typhoon, heavy rain Closely related sexual intercourse atmospheric parameter provides air temperature and humidity initial fields information for numerical weather forecast.
Currently, when being measured for the basic parameter for detecting required wind speed, being needed in Atmospheric Survey equipment in Atmospheric Survey Carry out the calibration of corresponding parametric values, wherein the measurement of wind speed, wind direction is to prevention and treatment of weather forecast, climate monitoring and haze etc. Have great importance.The device of traditional measuring wind speed and calibration is measured by photoelectric device, due to photoelectric device It is low that volume and photoelectricity cutting code-disc mode result in traditional wind direction and wind velocity sensor resolution ratio, leads to calibration difficulties, accuracy It is low, therefore, wind speed calibrating installation is carried out using the principle of photoelectric device and is unable to satisfy use demand.
Accordingly, it is desirable to provide a kind of comprehensive wind speed calibrating installation of Atmospheric Survey, it is intended to solve the above problems.
Summary of the invention
In view of the deficienciess of the prior art, the embodiment of the present invention is designed to provide a kind of Atmospheric Survey with comprehensive Wind speed calibrating installation, to solve the problems in above-mentioned background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of Atmospheric Survey comprehensive wind speed calibrating installation, including sizing stop are equipped with wind on the sizing stop Fast calibrating installation and wind direction calibrating installation, wind speed calibrating installation and wind direction calibrating installation are located at the calibration pedestal of sizing stop Two sides up and down;
The wind speed calibrating installation includes wind speed calibration cylinder, wind speed shaft and vane, and wind speed calibrates connection calibration at the top of cylinder Cover is calibrated and is equipped with wind speed shaft inside cover, and wind speed shaft bottom is equipped with wind speed sensing element, wind speed sensing element side Face is equipped with air velocity transducer, and air velocity transducer connects wind speed PCB circuit board;Vane lid, vane lid side are connected at the top of wind speed shaft Face is connected with vane by connecting rod.
As a further solution of the present invention, the sizing stop includes end wall bracket, fixed plate, screw hole, calibration pedestal And bolt hole, fixed plate are welded on the bottom of end wall bracket, fixed plate is equipped with screw hole, is welded with calibration base at the top of end wall bracket Seat, calibration pedestal is horizontally disposed, calibrates and offers bolt hole on pedestal, is equipped with lock bolt in bolt hole.
As a further solution of the present invention, the lock bolt both ends are each passed through wind speed calibrating installation and wind direction calibration Lock screw is connected on device after through-hole.
As a further solution of the present invention, the wind speed calibration cylinder is fixed on calibration by lock bolt and lock screw On the upside of pedestal, bearing is installed between wind speed shaft and calibration cover.
As a further solution of the present invention, the quantity of the vane is three, and the vane lid, connecting rod and vane are one Body formula structure.
As a further solution of the present invention, the wind direction calibrating installation includes wind direction calibration cylinder, wind direction axis, wind direction tail Mark, wind vane counterweight, wind direction turntable, wind direction PCB circuit board, wind direction sensing element, wind transducer, angle scale and recognition Slot, the wind direction calibration cylinder are fixed on the downside of calibration pedestal by lock bolt and lock screw, and wind direction calibrates the connection of cylinder bottom There is calibration cover, calibrate and wind direction axis is installed in cover, bearing, the wind direction axis top are equipped between wind direction axis and calibration cover Wind direction turntable is connected, wind direction turntable side is equipped with angle scale, opens up on the wind direction calibration cylinder of wind direction turntable side insighted Slot is read, recognition slot is set to the side of angle scale.
As a further solution of the present invention, wind direction axis top is additionally provided with wind direction sensing element, wind direction sensing element Side is equipped with wind transducer, and wind transducer connects wind direction PCB circuit board.
As a further solution of the present invention, wind direction axis lower part connects wind direction tail tag, is equipped with wind on front side of wind direction tail tag To mark counterweight.
As a further solution of the present invention, the wind direction calibrating installation is set on the upside of calibration pedestal, wind speed calibration cartridge It installs and is placed on the downside of calibration pedestal.
In conclusion the embodiment of the present invention has the advantages that compared with prior art
The comprehensive wind speed calibrating installation of Atmospheric Survey of the invention, by being equipped with wind speed calibration cartridge on sizing stop Set with wind direction calibrating installation, be respectively used to the measurement of wind direction and the measurement of wind speed, thus carry out wind speed, wind direction calibration behaviour Make, comprehensive measurement wind speed, wind direction can be carried out, thus be conducive to use in Atmospheric Survey, it is easy for installation.
In order to explain the structural features and functions of the invention more clearly, come with reference to the accompanying drawing with specific embodiment to this hair It is bright to be described in detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of inventive embodiments 1.
Fig. 2 is the structural schematic diagram of vane in inventive embodiments.
Fig. 3 is the structural schematic diagram of inventive embodiments alignment bracket.
Fig. 4 is the structural schematic diagram of wind speed calibrating installation and the installation of wind direction calibrating installation in inventive embodiments 1.
Fig. 5 is the structural schematic diagram of wind speed calibrating installation and the installation of wind direction calibrating installation in inventive embodiments 2.
Appended drawing reference: 1- sizing stop, 2- end wall bracket, 3- fixed plate, 4- screw hole, 5- calibrate pedestal, 6- bolt hole, 7- Wind speed calibrates cylinder, 8- wind direction calibrates cylinder, 9- fixed disk, 10- lock bolt, 11- lock screw, 12- wind speed PCB circuit board, 13- Wind speed sensing element, 14- air velocity transducer, 15- calibration cover, 16- bearing, 17- wind speed shaft, 18- vane lid, 19- connecting rod, 20- vane, 21- wind direction axis, 22- wind direction tail tag, 23- wind vane counterweight, 24- wind direction turntable, 25- wind direction PCB circuit board, 26- wind direction sensing element, 27- wind transducer, 28- angle scale, 29- distinguish slot.
Specific embodiment
The following further describes the technical solution of the present invention in the following with reference to the drawings and specific embodiments.
Embodiment 1
Shown in referring to figs. 1 to 4, a kind of Atmospheric Survey comprehensive wind speed calibrating installation, including sizing stop 1 are described Wind speed calibrating installation and wind direction calibrating installation be installed on sizing stop 1, the sizing stop 1 include end wall bracket 2, fixed plate 3, Screw hole 4, calibration pedestal 5 and bolt hole 6, the fixed plate 3 are welded on the bottom of end wall bracket 2, and fixed plate 3 is equipped with screw hole 4, fixed plate 3 is fixed for bolts through bolt holes 4, calibration pedestal 5 is welded at the top of the end wall bracket 2, calibrates base Seat 5 is horizontally disposed, calibrates and offers bolt hole 6 on pedestal 5, lock bolt 10 is equipped in bolt hole 6;In the present invention, excellent Choosing, fixed disk 9 is welded on the wind speed calibration cylinder 7 and wind direction calibration cylinder 8, fixed disk 9 is equipped with and calibrates on pedestal 5 The one-to-one through-hole of bolt hole 6, facilitates lock bolt 10 to pass through, 10 both ends of lock bolt be each passed through wind speed calibrating installation and Lock screw 11 is connected in the fixed disk 9 of wind direction calibrating installation after through-hole, tightens lock screw 11 to by lock bolt 10 Calibration pedestal 5, wind speed calibrating installation and wind direction calibrating installation are linked together.
The wind speed calibrating installation and wind direction calibrating installation are located at the two sides up and down of calibration pedestal 5, wind speed calibration cartridge It installs and is placed in calibration pedestal 5 upside or wind direction calibrating installation is set to 5 upside of calibration pedestal;Preferably, in the present invention In embodiment, the wind speed calibrating installation is set to 5 upside of calibration pedestal.
The wind speed calibrating installation includes wind speed calibration cylinder 7, wind speed PCB circuit board 12, wind speed sensing element 13, wind speed biography Sensor 14, calibration cover 15, bearing 16, wind speed shaft 17, vane lid 18, connecting rod 19 and vane 20, the wind speed calibration cylinder 7 are logical It crosses lock bolt 10 and lock screw 11 is fixed on 5 upside of calibration pedestal, wind speed calibrates connection calibration cover 15, school at the top of cylinder 7 It is equipped with wind speed shaft 17 inside quasi- cover 15, bearing 16, the wind speed are installed between wind speed shaft 17 and calibration cover 15 17 bottom of shaft is equipped with wind speed sensing element 13, and 13 side of wind speed sensing element is equipped with air velocity transducer 14, air velocity transducer 14 connection wind speed PCB circuit boards 12;Vane lid 18 is connected at the top of the wind speed shaft 17,18 side of vane lid is connected by connecting rod 19 It is connected to vane 20.
The quantity of the vane 20 is at least three, and in embodiments of the present invention, the quantity of vane 20 is three, the wind Cup lid 18, connecting rod 19 and vane 20 are an integral structure.
The wind direction calibrating installation includes wind direction calibration cylinder 8, wind direction axis 21, wind direction tail tag 22, wind vane counterweight 23, wind To turntable 24, wind direction PCB circuit board 25, wind direction sensing element 26, wind transducer 27, angle scale 28 and recognition slot 29, institute It states wind direction calibration cylinder 8 and 5 downside of calibration pedestal is fixed on by lock bolt 10 and lock screw 11, wind direction is calibrated 8 bottom of cylinder and connected It is connected to calibration cover 15, calibrates and wind direction axis 21 is installed in cover 15, is equipped with bearing 16 between wind direction axis 21 and calibration cover 15, Wind direction turntable 24 is connected at the top of the wind direction axis 21,24 side of wind direction turntable is equipped with angle scale 28,24 side of wind direction turntable Recognition slot 29 is offered on the wind direction calibration cylinder 8 in face, recognition slot 29 is set to the side of angle scale 28, convenient for recognition angle mark Number on ruler 28;
21 top of wind direction axis is additionally provided with wind direction sensing element 26, and 26 side of wind direction sensing element is equipped with wind transducer 27, wind transducer 27 connects wind direction PCB circuit board 25;21 lower part of wind direction axis connects wind direction tail tag 22, wind direction tail tag 22 Front side is equipped with wind vane counterweight 23.
In embodiments of the present invention, the wind speed sensing element 13 and wind direction sensing element 26 are preferably magnet, with its point Not relative to air velocity transducer 14 and wind transducer 27 be preferably hall sensing element, hall sensing element is set to magnet Outer ring side;When carrying out wind, the rotation of wind speed shaft 17 can be rotated with bottom wind speed sensing element 13, so that bottom be made to connect Air velocity transducer 14 (hall sensing element) in wind speed PCB circuit board 12 exports varying voltage signal, passes through collection voltages After signal processing, wind speed being calculated, to obtain accurate air speed value, being referred to when for calibrating;When carrying out wind, wind direction tail tag 22 It turning to consistent with wind direction and wind direction axis 21 is driven to rotate, the rotation of wind direction axis 21 can be rotated with top wind direction sensing element 26, Wind transducer 27 (hall sensing element) output different voltages letter to make bottom be connected in wind direction PCB circuit board 25 Number, after collection voltages signal processing, wind direction being calculated, to obtain accurate wind direction value, being referred to when for calibrating;With this It is also possible to read the scale on the angle scale 28 that wind direction axis 21 rotates by recognition slot 29, it is determined wind direction, is used for The calibration reference of wind direction measurement.
Embodiment 2
It please refers to shown in Fig. 2~Fig. 3 and Fig. 5, a kind of Atmospheric Survey comprehensive wind speed calibrating installation, including sizing stop 1, wind speed calibrating installation and wind direction calibrating installation are installed on the sizing stop 1, in embodiments of the present invention, the wind direction school Standard apparatus is set to calibration pedestal 5 upside, and wind speed calibrating installation is set to 5 downside of calibration pedestal, the embodiment of the present invention remaining Structure is same as Example 1.
To be conducive to carry out wind direction calibration on the top of calibration pedestal 5, wind speed calibration is carried out in the lower part of calibration pedestal 5.
The technical principle of the invention is described above in combination with a specific embodiment, is only the preferred embodiment of the present invention.This The protection scope of invention is not limited merely to above-described embodiment, and all technical solutions belonged under thinking of the present invention belong to the present invention Protection scope.Those skilled in the art, which does not need to pay for creative labor, can associate other specific realities of the invention Mode is applied, these modes will fall within the scope of protection of the present invention.

Claims (9)

1. a kind of comprehensive wind speed calibrating installation of Atmospheric Survey, including sizing stop (1), which is characterized in that the calibration branch Wind speed calibrating installation and wind direction calibrating installation are installed, wind speed calibrating installation and wind direction calibrating installation are located at school on frame (1) The two sides up and down of the calibration pedestal (5) of quasi- bracket (1);
The wind speed calibrating installation includes wind speed calibration cylinder (7), wind speed shaft (17) and vane (20), and wind speed calibrates cylinder (7) top Portion's connection calibration cover (15), calibration cover (15) is internal to be equipped with wind speed shaft (17), and wind speed shaft (17) bottom is equipped with Wind speed sensing element (13), wind speed sensing element (13) side are equipped with air velocity transducer (14), and air velocity transducer (14) connects wind Fast PCB circuit board (12);Vane lid (18) are connected at the top of wind speed shaft (17), vane lid (18) side is connected by connecting rod (19) There are vane (20).
2. the comprehensive wind speed calibrating installation of Atmospheric Survey according to claim 1, which is characterized in that the sizing stop It (1) include that end wall bracket (2), fixed plate (3), screw hole (4), calibration pedestal (5) and bolt hole (6), fixed plate (3) are welded on tiltedly The bottom of support (2), fixed plate (3) are equipped with screw hole (4), and calibration pedestal (5) is welded at the top of end wall bracket (2), calibrate base Seat (5) is horizontally disposed, offers bolt hole (6) in calibration pedestal (5), is equipped with lock bolt (10) in bolt hole (6).
3. the comprehensive wind speed calibrating installation of Atmospheric Survey according to claim 2, which is characterized in that the lock bolt (10) both ends are each passed through on wind speed calibrating installation and wind direction calibrating installation connection lock screw (11) after through-hole.
4. the comprehensive wind speed calibrating installation of Atmospheric Survey according to claim 1, which is characterized in that the wind speed calibration Cylinder (7) is fixed on the upside of calibration pedestal (5) by lock bolt (10) and lock screw (11), wind speed shaft (17) and calibration cylinder Bearing (16) are installed between lid (15).
5. the comprehensive wind speed calibrating installation of Atmospheric Survey according to claim 4, which is characterized in that the vane (20) Quantity be three, the vane lid (18), connecting rod (19) and vane (20) are an integral structure.
6. -5 any comprehensive wind speed calibrating installation of Atmospheric Survey according to claim 1, which is characterized in that the wind It include wind direction calibration cylinder (8), wind direction axis (21), wind direction tail tag (22), wind vane counterweight (23), wind direction turntable to calibrating installation (24), wind direction PCB circuit board (25), wind direction sensing element (26), wind transducer (27), angle scale (28) and recognition slot (29), wind direction calibration cylinder (8) is fixed on the downside of calibration pedestal (5) by lock bolt (10) and lock screw (11), wind To calibration cylinder (8) bottom be connected with calibration cover (15), calibration cover (15) in is equipped with wind direction axis (21), wind direction axis (21) with It calibrates and is equipped with bearing (16) between cover (15), connect wind direction turntable (24) at the top of the wind direction axis (21), wind direction turntable (24) Side is equipped with angle scale (28), offers recognition slot (29) in wind direction calibration cylinder (8) of wind direction turntable (24) side, knows Read the side that slot (29) are set to angle scale (28).
7. the comprehensive wind speed calibrating installation of Atmospheric Survey according to claim 6, which is characterized in that the wind direction axis (21) top is additionally provided with wind direction sensing element (26), and wind direction sensing element (26) side is equipped with wind transducer (27), and wind direction passes Sensor (27) connects wind direction PCB circuit board (25).
8. the comprehensive wind speed calibrating installation of Atmospheric Survey according to claim 7, which is characterized in that the wind direction axis (21) lower part connection wind direction tail tag (22), wind direction tail tag (22) front side are equipped with wind vane counterweight (23).
9. the comprehensive wind speed calibrating installation of Atmospheric Survey according to claim 1, which is characterized in that the wind direction calibration Device is set on the upside of calibration pedestal (5), and wind speed calibrating installation is set on the downside of calibration pedestal (5).
CN201910353148.6A 2019-04-29 2019-04-29 A kind of comprehensive wind speed calibrating installation of Atmospheric Survey Pending CN109901245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910353148.6A CN109901245A (en) 2019-04-29 2019-04-29 A kind of comprehensive wind speed calibrating installation of Atmospheric Survey

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910353148.6A CN109901245A (en) 2019-04-29 2019-04-29 A kind of comprehensive wind speed calibrating installation of Atmospheric Survey

Publications (1)

Publication Number Publication Date
CN109901245A true CN109901245A (en) 2019-06-18

Family

ID=66956569

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910353148.6A Pending CN109901245A (en) 2019-04-29 2019-04-29 A kind of comprehensive wind speed calibrating installation of Atmospheric Survey

Country Status (1)

Country Link
CN (1) CN109901245A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110907659A (en) * 2019-11-25 2020-03-24 华北科技学院 Mining wind speed sensor and correction method thereof
CN115600639A (en) * 2022-09-30 2023-01-13 国网四川省电力公司眉山供电公司(Cn) Wind speed sensor, power transmission line wind speed prediction method and early warning system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2552006Y (en) * 2002-06-28 2003-05-21 中国科学院寒区旱区环境与工程研究所 Field portable sand-proof wind speed profile measurer
CN201514492U (en) * 2009-09-08 2010-06-23 国家气候中心 Digitalized wind velocity and wind direction sensor compatible with SDI-12 protocol
CN204694728U (en) * 2015-06-11 2015-10-07 青岛哈工海洋工程技术有限公司 A kind of Novel compact type seal sensor
KR20160032585A (en) * 2014-09-16 2016-03-24 성 훈 김 Hybrid anemoscope and anemometer
CN206546377U (en) * 2017-01-16 2017-10-10 华云普达(北京)科技有限公司 A kind of wind direction and wind velocity sensor based on electromagnetic induction principle
CN207832817U (en) * 2017-12-05 2018-09-07 四川麦控科技有限公司 A kind of teaching anerovane

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2552006Y (en) * 2002-06-28 2003-05-21 中国科学院寒区旱区环境与工程研究所 Field portable sand-proof wind speed profile measurer
CN201514492U (en) * 2009-09-08 2010-06-23 国家气候中心 Digitalized wind velocity and wind direction sensor compatible with SDI-12 protocol
KR20160032585A (en) * 2014-09-16 2016-03-24 성 훈 김 Hybrid anemoscope and anemometer
CN204694728U (en) * 2015-06-11 2015-10-07 青岛哈工海洋工程技术有限公司 A kind of Novel compact type seal sensor
CN206546377U (en) * 2017-01-16 2017-10-10 华云普达(北京)科技有限公司 A kind of wind direction and wind velocity sensor based on electromagnetic induction principle
CN207832817U (en) * 2017-12-05 2018-09-07 四川麦控科技有限公司 A kind of teaching anerovane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110907659A (en) * 2019-11-25 2020-03-24 华北科技学院 Mining wind speed sensor and correction method thereof
CN115600639A (en) * 2022-09-30 2023-01-13 国网四川省电力公司眉山供电公司(Cn) Wind speed sensor, power transmission line wind speed prediction method and early warning system
CN115600639B (en) * 2022-09-30 2023-11-14 国网四川省电力公司眉山供电公司 Wind speed sensor, wind speed prediction method of power transmission line and early warning system

Similar Documents

Publication Publication Date Title
US20090319189A1 (en) Low cost, unattended weather sensor
CN109901245A (en) A kind of comprehensive wind speed calibrating installation of Atmospheric Survey
Gottschall et al. Verification test for three WindCubeTM WLS7 LiDARs at the Høvsøre test site
Wieser et al. The influence of the sensor design on wind measurements with sonic anemometer systems
CN100465647C (en) wind-velocity indicator
CN112362226A (en) Self-adaptive airflow total static pressure measuring system
CN210626506U (en) Wind direction and wind speed measuring instrument
CN203405474U (en) Anemorumbometer
Sun et al. A cylindrical vehicle-mounted anemometer based on 12 pressure sensors—Principle, prototype design, and validation
CN207832124U (en) Wheel tread parameter intelligent detector calibrating installation
CN211085095U (en) Eddy current displacement sensor normal position calibration device
CN106526236A (en) Method and device for calibrating current meter flow direction
RU2012124994A (en) CONTROL DEVICE AND METHOD FOR ITS OPERATION
CN208140182U (en) A kind of movable type environmental monitoring prior-warning device
CN208536814U (en) A kind of angular displacement sensor grip device
CN2884143Y (en) Novel digital display dipmeter
CN207636086U (en) A kind of autonomous type opening self-detective instrument
CN201181239Y (en) Calibration apparatus of ambient brightness sensor
CN201413140Y (en) Two-degree-of-freedom vector digital inclination angle testing instrument
CN220508959U (en) Wind speed measuring instrument
CN209181761U (en) A kind of Calibration of angular displacement sensor auxiliary locator used for oil extractor
CN207147957U (en) A kind of transilluminator optical path automatic-aligning system based on scan mode
CN209689592U (en) A kind of device of the long displacement absolute measurement based on absolute angle encoder
CN208351019U (en) A kind of meteorologic parameter comprehensive monitor
CN201177635Y (en) Wind velocity indicator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190618