CN108168498A - A kind of Portable aircraft aerofoil corner measuring apparatus - Google Patents
A kind of Portable aircraft aerofoil corner measuring apparatus Download PDFInfo
- Publication number
- CN108168498A CN108168498A CN201810117055.9A CN201810117055A CN108168498A CN 108168498 A CN108168498 A CN 108168498A CN 201810117055 A CN201810117055 A CN 201810117055A CN 108168498 A CN108168498 A CN 108168498A
- Authority
- CN
- China
- Prior art keywords
- aerofoil
- measured
- master device
- holder
- measure
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
A kind of Portable aircraft aerofoil corner measuring apparatus, is related to measuring device technical field；Including clamping tooling, holder and measure master device；Clamping tooling is clamp type structure；Clamping tooling fixed clamp is on the aileron of external aerofoil to be measured；Holder is fixedly mounted on the upper surface of clamping tooling tail portion；Measure the upper end that master device is fixedly mounted on holder；It measures between master device and holder through spherical secondary connection, realizes and measure master device relative to external 360 ° of rotations of aerofoil to be measured；And pass through and measure rotational angle theta of the external aerofoil to be measured of master device measurement relative to aerofoil shaft；Corner measuring apparatus further includes rubber sheet gasket；Rubber sheet gasket is symmetrically fixed at the inner wall of clamping tooling；And rubber sheet gasket is located between clamping tooling and external aerofoil aileron to be measured；The present invention is directly measured in the end of steering engine connecting rod aerofoil this transmission chain, is not influenced by the error that intermediate transfer link introduces, and the aerofoil corner accuracy calculated is high.
Description
Technical field
The present invention relates to a kind of measuring device technical field, particularly a kind of Portable aircraft aerofoil corner measuring apparatus.
Background technology
The rotation control accuracy of plane airfoil plays effect of crucial importance during the practical flight of aircraft, concerning
Flight safety.The transmission chain form of common plane airfoil rotation is：Actuating unit-executing agency-actuating mechanism, i.e.,：Steering engine-
Connecting rod-aerofoil.In issuing and in implementation procedure, each link of transmittance process can introduce error, therefore meeting for servos control instruction
Lead to issue between servos control throw of pointer angle and practical aerofoil rotation angle that there are errors.In order to compensate for the error, need to carry
The preceding angular errors measured in different steering engine deflection angle control instructions, this proposes angle measurement accuracy higher requirement.
The device of Patent No. CN201511001527.7 is rotated aerofoil of the link mechanism clamping in aircraft using sucker
Position calculates the turned position of aerofoil using the rotational angle of each connecting rod.The device is disadvantageous in that：It depends on each company
The measurement accuracy of linkage, and the continual pumping of air pump is needed, to keep enough adsorption capacities；It is difficult to using portable
It uses.
Sensor is mounted in aerofoil by the device of Patent No. CN201120395883.2 by the way of clamping, passes through two axis
Angel measuring instrument reads registration and obtains deflection angle.The device is disadvantageous in that：Due to position of the dipmeter on fixture
It is immutable to put fixation, can lead to constantly to adjust clamping position when in use cause two axis registrations stabilization, this dress to fixture
Pressing from both sides position has higher requirement, otherwise can influence its measurement accuracy；Secondly, it is support personnel's safety aboard after electricity,
Test and debugging personnel are needed far from field regions, therefore are not only difficult to meet safe want using the data acquisition modes of digital displaying meter
It asks, it is also inconvenient to carry out data record and analysis, it is mended in addition, the device is not directed to the outer corner measurement that aerofoil is tilted under installation situation
It repays, therefore be not suitable for measurement aerofoil with respect to the horizontal plane to have the situation of larger mounted angle.
Invention content
It is an object of the invention to overcome the above-mentioned deficiency of the prior art, a kind of Portable aircraft aerofoil outer corner measurement is provided
Device directly measures, the error not introduced by intermediate transfer link in the end of steering engine-connecting rod-aerofoil this transmission chain
It influences, the aerofoil corner accuracy calculated is high.
The above-mentioned purpose of the present invention is achieved by following technical solution：
A kind of Portable aircraft aerofoil corner measuring apparatus including clamping tooling, holder and measures master device；Wherein, it presss from both sides
Tooling is held as clamp type structure；Clamping tooling fixed clamp is on the aileron of external aerofoil to be measured；Holder is fixedly mounted on folder
Hold the upper surface of tooling tail portion；Measure the upper end that master device is fixedly mounted on holder；It measures and passes through ball between master device and holder
Shape pair connects, and realizes and measures master device relative to external 360 ° of rotations of aerofoil to be measured；And pass through and measure master device measurement outside
Aerofoil to be measured relative to aerofoil shaft rotational angle theta.
In a kind of above-mentioned Portable aircraft aerofoil corner measuring apparatus, the corner measuring apparatus further includes rubber pad
Piece；Rubber sheet gasket is symmetrically fixed at the inner wall of clamping tooling；And rubber sheet gasket is located at clamping tooling and the external wing to be measured
Between the aileron of face.
Vernier knob and ball pair are provided on a kind of above-mentioned Portable aircraft aerofoil corner measuring apparatus, the holder
Fixed knob；Vernier knob is arranged on holder externally on the side wall of aerofoil aileron generatrix direction to be measured；Ball pair fixed knob
It is arranged on the side wall of holder vertical external aerofoil aileron generatrix direction to be measured.
In a kind of above-mentioned Portable aircraft aerofoil corner measuring apparatus, adjust and measure position of the master device relative to holder
It postpones, is locked by ball pair fixed knob by master device is measured in the upper end of holder.
In a kind of above-mentioned Portable aircraft aerofoil corner measuring apparatus, the measurement master device is cube structure；It is logical
Vernier knob realization is crossed to adjust the horizontal side for measuring master device to parallel with external aerofoil aileron generatrix direction to be measured.
In a kind of above-mentioned Portable aircraft aerofoil corner measuring apparatus, the measurement master device includes power supply module, double
Axis measurement module and communication module；
Power supply module：Realize the power supply to twin shaft measurement module and communication module；
Twin shaft measurement module：Rotational angle theta of the external aerofoil to be measured relative to aerofoil shaft is measured, and in the form of digital quantity
It is output to communication module；
Communication module：Receive the rotational angle theta of digital quantity form that twin shaft measurement module transmits；And by the corner of digital quantity form
θ is sent to exterior terminal.
Setting two is mutual inside a kind of above-mentioned Portable aircraft aerofoil corner measuring apparatus, the twin shaft measurement module
Perpendicular measurement axis；One of measurement axis is parallel with external aerofoil aileron generatrix direction to be measured；Another measure axis with
External aerofoil aileron generatrix direction to be measured is vertical；And two measure axis vertically at the center compared to two axis.
In a kind of above-mentioned Portable aircraft aerofoil corner measuring apparatus, the accuracy of measurement for measuring master device for ±
0.05°。
The present invention has the following advantages that compared with prior art：
(1) present invention can easily adjust the state of twin shaft Angle Measurement Module to most by the vernier knob on holder
Excellent position, to achieve the purpose that improve measurement accuracy；In addition, the device is using plane airfoil as direct measurement object, not by
Between transmit ring introduce error influence, further improve measurement accuracy；
(2) present invention use highly integrated design, data are acquired, power with communication integrate in one apparatus, pass through
Portable terminal can obtain data mode in the range of effective distance；
(3) present invention using Miniaturization Design by clamping tooling, rotary head, supplying cell, twin shaft Angle Measurement Module,
Communication module effectively integrates, in addition, the state that aerofoil is tilted installation by method is taken into account, ensures that its is generally applicable
Property；
(4) clamping tooling of the present invention by caliberating device clamping at the skeleton of aerofoil so that the device is connected with aerofoil；This
Outside, clamping point is furnished with rubber cushion, in case aerofoil damages.
Description of the drawings
Fig. 1 is Portable aircraft aerofoil corner measuring apparatus external structure schematic diagram of the present invention；
Fig. 2 measures composition schematic diagram inside master device for the present invention.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments：
It is as shown in Figure 1 Portable aircraft aerofoil corner measuring apparatus external structure schematic diagram, it is as seen from the figure, a kind of portable
Formula plane airfoil corner measuring apparatus including clamping tooling 1, rubber sheet gasket 2, holder 4 and measures master device 5；Wherein, work is clamped
1 is filled as clamp type structure；1 fixed clamp of clamping tooling is on the aileron of external aerofoil to be measured；Holder 4 is fixedly mounted on clamping
The upper surface of 1 tail portion of tooling；Measure the upper end that master device 5 is fixedly mounted on holder 4；It measures and passes through between master device 5 and holder 4
Spherical secondary connection is realized and measures master device 5 relative to external 360 ° of rotations of aerofoil to be measured；And pass through and measure master device 5 and measure
External aerofoil to be measured relative to aerofoil shaft rotational angle theta.Rubber sheet gasket 2 is symmetrically fixed at the inner wall of clamping tooling 1；Folder
It holds and 4 rubber sheet gaskets 2 is respectively installed on clamping face above and below the inner wall of tooling 1, for protecting aerofoil injury-free；And rubber sheet gasket
2 are located between clamping tooling 1 and external aerofoil aileron to be measured.
Vernier knob 3 and ball pair fixed knob 6 are provided on holder 4；It is externally to be measured that vernier knob 3 is arranged on holder 4
On the side wall for measuring aerofoil aileron generatrix direction；Ball pair fixed knob 6 is arranged on 4 vertical external of holder aerofoil aileron busbar to be measured
On the side wall in direction.It adjusts after measuring position of the master device 5 relative to holder 4, main dress will be measured by ball pair fixed knob 6
5 are put to be locked in the upper end of holder 4.Measurement master device 5 is cube structure；Main dress will be measured by being realized by vernier knob 3
5 horizontal side is put to adjust to parallel with external aerofoil aileron generatrix direction to be measured.
It is illustrated in figure 2 and measures composition schematic diagram inside master device, as seen from the figure, measure master device 5 and include power supply module
501st, twin shaft measurement module 502 and communication module 503；
Power supply module 501：Realize the power supply to twin shaft measurement module 502 and communication module 503.
Twin shaft measurement module 502：502 two mutually perpendicular measurement axis of inside setting of twin shaft measurement module；One of them
It is parallel with external aerofoil aileron generatrix direction to be measured to measure axis；Another measures axis and external aerofoil aileron busbar side to be measured
To vertical；And two measure axis vertically at the center compared to two axis.External aerofoil to be measured is measured relative to aerofoil shaft
Rotational angle theta, and communication module 503 is output in the form of digital quantity.
Communication module 503：Receive the rotational angle theta of digital quantity form that twin shaft measurement module 502 transmits；And by digital quantity form
Rotational angle theta be sent to exterior terminal.
Supplying cell 501 is internal electricity consumption module for power supply；Twin shaft measurement module 502 has accurate two axis of determination sensor
The function of angle with horizontal plane, and pass through serial line interface and measurement data is fed back into communication module 503；Communication module 503 then will
Serial data sends data to the handheld terminal of external specified address port by the form of WLAN.
The accuracy of measurement for measuring master device 5 is ± 0.05 °
The content not being described in detail in description of the invention belongs to the known technology of those skilled in the art.
Claims (8)
1. a kind of Portable aircraft aerofoil corner measuring apparatus, it is characterised in that：Including clamping tooling (1), holder (4) and measure
Master device (5)；Wherein, clamping tooling (1) is clamp type structure；Clamping tooling (1) fixed clamp is in external aerofoil to be measured
On aileron；Holder (4) is fixedly mounted on the upper surface of clamping tooling (1) tail portion；It measures master device (5) and is fixedly mounted on holder
(4) upper end；It measures and is connect between master device (5) and holder (4) by spherical pair, realize and measure master device (5) relative to outer
The 360 ° of rotations of portion's aerofoil to be measured；And pass through and measure turn of the external aerofoil to be measured of master device (5) measurement relative to aerofoil shaft
Angle θ.
2. a kind of Portable aircraft aerofoil corner measuring apparatus according to claim 1, it is characterised in that：The corner is surveyed
Amount device further includes rubber sheet gasket (2)；Rubber sheet gasket (2) is symmetrically fixed at the inner wall of clamping tooling (1)；And rubber sheet gasket
(2) between clamping tooling (1) and external aerofoil aileron to be measured.
3. a kind of Portable aircraft aerofoil corner measuring apparatus according to claim 1, it is characterised in that：The holder
(4) vernier knob (3) and ball pair fixed knob (6) are provided on；It is externally to be measured that vernier knob (3) is arranged on holder (4)
On the side wall of aerofoil aileron generatrix direction；It is female that ball pair fixed knob (6) is arranged on holder (4) vertical external aerofoil aileron to be measured
On the side wall in line direction.
4. a kind of Portable aircraft aerofoil corner measuring apparatus according to claim 3, it is characterised in that：Adjust measurement
Behind position of the master device (5) relative to holder (4), master device (5) will be measured by ball pair fixed knob (6) and be locked in cloud
The upper end of platform (4).
5. a kind of Portable aircraft aerofoil corner measuring apparatus according to claim 4, it is characterised in that：It is described to measure master
Device (5) is cube structure；By vernier knob (3) realize will measurement master device (5) horizontal side adjust to outside
Aerofoil aileron generatrix direction to be measured is parallel.
6. a kind of Portable aircraft aerofoil corner measuring apparatus according to claim 1, it is characterised in that：It is described to measure master
Device (5) includes power supply module (501), twin shaft measurement module (502) and communication module (503)；
Power supply module (501)：Realize the power supply to twin shaft measurement module (502) and communication module (503)；
Twin shaft measurement module (502)：Rotational angle theta of the external aerofoil to be measured relative to aerofoil shaft is measured, and with the shape of digital quantity
Formula is output to communication module (503)；
Communication module (503)：Receive the rotational angle theta of digital quantity form that twin shaft measurement module (502) transmits；And by digital quantity form
Rotational angle theta be sent to exterior terminal.
7. a kind of Portable aircraft aerofoil corner measuring apparatus according to claim 6, it is characterised in that：The twin shaft is surveyed
Measure two mutually perpendicular measurement axis of setting inside module (502)；It is one of to measure axis and external aerofoil aileron mother to be measured
Line direction is parallel；It is vertical with external aerofoil aileron generatrix direction to be measured that another measures axis；And two measure axis and vertically compare
At the center of two axis.
8. a kind of Portable aircraft aerofoil corner measuring apparatus according to claim 7, it is characterised in that：It is described to measure master
The accuracy of measurement of device (5) is ± 0.05 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117055.9A CN108168498A (en) | 2018-02-06 | 2018-02-06 | A kind of Portable aircraft aerofoil corner measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117055.9A CN108168498A (en) | 2018-02-06 | 2018-02-06 | A kind of Portable aircraft aerofoil corner measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108168498A true CN108168498A (en) | 2018-06-15 |
Family
ID=62513315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810117055.9A Pending CN108168498A (en) | 2018-02-06 | 2018-02-06 | A kind of Portable aircraft aerofoil corner measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108168498A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238231A (en) * | 2018-08-17 | 2019-01-18 | 国营芜湖机械厂 | A kind of aircraft rudder surface angle measurement unit and its measurement method |
| CN109443283A (en) * | 2018-09-30 | 2019-03-08 | 长安大学 | A kind of portable free clearance detection device of aircraft |
| CN109987250A (en) * | 2019-04-03 | 2019-07-09 | 西安飞机工业（集团）有限责任公司 | A kind of aircraft movable wing adjustment detection system and adjustment detection method |
| CN110626522A (en) * | 2019-09-04 | 2019-12-31 | 大连长丰实业总公司 | Protractor for measuring deflection of airplane aileron |
| CN112693626A (en) * | 2021-03-23 | 2021-04-23 | 中国空气动力研究与发展中心低速空气动力研究所 | Control surface angle sheet applied to wind tunnel test model and installation method |
| CN112896549A (en) * | 2021-01-21 | 2021-06-04 | 中国民用航空飞行学院 | General fixed wing aircraft rudder angle detection device |
| CN113865546A (en) * | 2021-10-29 | 2021-12-31 | 上海机电工程研究所 | Folding rudder angle measuring device and folding rudder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202274872U (en) * | 2011-10-17 | 2012-06-13 | 芜湖比翼鸟航空科技有限公司 | Instrument for measuring aircraft control surface angle |
| KR20130013554A (en) * | 2011-07-28 | 2013-02-06 | 현대제철 주식회사 | Biaxial tensile strain evaluating apparatus |
| CN204788448U (en) * | 2015-06-23 | 2015-11-18 | 中国人民解放军海军航空工程学院青岛校区 | Pedal sensor mark school anchor clamps |
| CN204788329U (en) * | 2015-06-23 | 2015-11-18 | 中国人民解放军海军航空工程学院青岛校区 | Control stick sensor mark school anchor clamps |
| CN204772197U (en) * | 2015-06-23 | 2015-11-18 | 中国人民解放军海军航空工程学院青岛校区 | General mark school anchor clamps of displacement sensor on aircraft |
| CN105423910A (en) * | 2015-12-28 | 2016-03-23 | 中国航天空气动力技术研究院 | Airplane steering surface deflection angle measurement device and method |
| CN207816245U (en) * | 2018-02-06 | 2018-09-04 | 中国航天空气动力技术研究院 | A kind of Portable aircraft aerofoil corner measuring apparatus |
-
2018
- 2018-02-06 CN CN201810117055.9A patent/CN108168498A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130013554A (en) * | 2011-07-28 | 2013-02-06 | 현대제철 주식회사 | Biaxial tensile strain evaluating apparatus |
| CN202274872U (en) * | 2011-10-17 | 2012-06-13 | 芜湖比翼鸟航空科技有限公司 | Instrument for measuring aircraft control surface angle |
| CN204788448U (en) * | 2015-06-23 | 2015-11-18 | 中国人民解放军海军航空工程学院青岛校区 | Pedal sensor mark school anchor clamps |
| CN204788329U (en) * | 2015-06-23 | 2015-11-18 | 中国人民解放军海军航空工程学院青岛校区 | Control stick sensor mark school anchor clamps |
| CN204772197U (en) * | 2015-06-23 | 2015-11-18 | 中国人民解放军海军航空工程学院青岛校区 | General mark school anchor clamps of displacement sensor on aircraft |
| CN105423910A (en) * | 2015-12-28 | 2016-03-23 | 中国航天空气动力技术研究院 | Airplane steering surface deflection angle measurement device and method |
| CN207816245U (en) * | 2018-02-06 | 2018-09-04 | 中国航天空气动力技术研究院 | A kind of Portable aircraft aerofoil corner measuring apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 张超等: "《基于FPGA 的高精度扭矩传感系统设计》", 《仪表技术与传感器》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238231A (en) * | 2018-08-17 | 2019-01-18 | 国营芜湖机械厂 | A kind of aircraft rudder surface angle measurement unit and its measurement method |
| CN109443283A (en) * | 2018-09-30 | 2019-03-08 | 长安大学 | A kind of portable free clearance detection device of aircraft |
| CN109443283B (en) * | 2018-09-30 | 2020-09-04 | 长安大学 | Portable free gap detection device of aircraft |
| CN109987250A (en) * | 2019-04-03 | 2019-07-09 | 西安飞机工业（集团）有限责任公司 | A kind of aircraft movable wing adjustment detection system and adjustment detection method |
| CN109987250B (en) * | 2019-04-03 | 2023-10-20 | 西安飞机工业（集团）有限责任公司 | Adjustment detection system and adjustment detection method for movable wing surface of airplane |
| CN110626522A (en) * | 2019-09-04 | 2019-12-31 | 大连长丰实业总公司 | Protractor for measuring deflection of airplane aileron |
| CN112896549A (en) * | 2021-01-21 | 2021-06-04 | 中国民用航空飞行学院 | General fixed wing aircraft rudder angle detection device |
| CN112693626A (en) * | 2021-03-23 | 2021-04-23 | 中国空气动力研究与发展中心低速空气动力研究所 | Control surface angle sheet applied to wind tunnel test model and installation method |
| CN113865546A (en) * | 2021-10-29 | 2021-12-31 | 上海机电工程研究所 | Folding rudder angle measuring device and folding rudder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108168498A (en) | A kind of Portable aircraft aerofoil corner measuring apparatus | |
| CN207816245U (en) | A kind of Portable aircraft aerofoil corner measuring apparatus | |
| CN105606129A (en) | Measurement and calibration method for assisting in mounting of airplane inertial navigation finished product assembly | |
| CN105466663B (en) | The accurate device for measuring wind-tunnel Transonic Test section local air flow angle of deviation | |
| CN105423910A (en) | Airplane steering surface deflection angle measurement device and method | |
| CN105589076B (en) | A kind of 2 range units in distal end and its measurement method | |
| CN106705991B (en) | Strapdown is used to group and aims prism installation error test equipment | |
| CN108151692A (en) | One kind is based on double-shaft tilt angle sensor aircraft rudder surface declination angle measurement device and measuring method | |
| CN104964629B (en) | Face accuracy detection instrument before a kind of vehicle body | |
| CN105021156A (en) | Method for measuring rotating clearance of inclined rudder | |
| CN109000127A (en) | A kind of instrument and equipment self-level(l)ing device and its method | |
| CN207019635U (en) | Fiber end face angle measurement unit | |
| CN104535974A (en) | Boresight device of airplane radar system and using method of boresight device | |
| CN108317925A (en) | A kind of 360 ° of angle squares of portable | |
| CN104061898B (en) | Automatic detection device for accuracy of horizontal angle measurement | |
| CN207702075U (en) | A kind of rangefinder adjusting apparatus | |
| CN207866131U (en) | A kind of multifunction measuring set of indoor design | |
| CN205765128U (en) | A kind of photographic head accessory processing unit (plant) | |
| CN212228020U (en) | Storage tank ring plate height measuring device and system | |
| CN203629838U (en) | Split-type portable calibrating apparatus for four-wheel aligner | |
| CN106289253A (en) | A kind of small-sized inertial attitude sensor peculiar to vessel | |
| CN203811184U (en) | Self-calibration laser inertial navigation device | |
| CN107192368B (en) | Rotation angle measuring method of three-point plane-of-construction fixed shaft | |
| WO2020211032A1 (en) | Shaft disc-based rotor six-degrees of-freedom movement testing and decoupling method for movement parameters thereof | |
| CN109533390A (en) | A kind of bracket for propeller hub support arm installation angular measurement |
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 |