CN209656040U - Deflection angle measurement instrument - Google Patents
Deflection angle measurement instrument Download PDFInfo
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- CN209656040U CN209656040U CN201920557298.4U CN201920557298U CN209656040U CN 209656040 U CN209656040 U CN 209656040U CN 201920557298 U CN201920557298 U CN 201920557298U CN 209656040 U CN209656040 U CN 209656040U
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- measuring rod
- deflection angle
- measurement instrument
- angle measurement
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Abstract
The utility model relates to a kind of deflection angle measurement instrument, deflection angle measurement instrument includes measuring rod and inclinator.The measuring rod is transparent bar, and the measuring rod is equipped with contraposition center line.The contraposition center line extends to the other end of the measuring rod from one end of the measuring rod.The inclinator is set on the measuring rod.Above-mentioned deflection angle measurement instrument, it is measured using tilt angle of the above-mentioned measuring rod to determinand, when determinand is specially rocker bearing, measuring rod is fitted in the rocker end face of rocker bearing, it aligns the contraposition center line of measuring rod and the upper central point of the rocker end face of rocker bearing with center line determined by lower central point, and determines the tilt angle of rocker bearing according to the reading on inclinator.In this way, the traditional test mode of the tilt angle relative to rocker bearing, detection efficiency is greatly improved, while detection accuracy greatly improves.
Description
Technical field
The utility model relates to bridge construction technology fields, more particularly to a kind of deflection angle measurement instrument.
Background technique
In bridge construction object, the beam bridge both ends of large span are equipped with support, specifically such as rocker bearing.The effect of support
It is the correct position for firmly holding bridge span structure.The correctness of support position influences whether the stress condition of beam.Support with
Beam body and pier respectively between the correct of relative position fixed with firm by upper bottom anchor bolt.Part bridge on operation line
Because of the effect by temperature and the active force of train, it will cause amount of deflection and amplitude be excessive, support is made displacement and rocker inclination occur, this
Kind disease directly affects the stability of beam body, limits and affect train running speed and safety.Wherein, rocker bearing is being set
Meter, installation and the displacement and inclination for allowing to have certain on.By " railway bridge tunnel building big, Maintenance Rule dimension rule " requirement,
The vertically and horizontally displacement of rocker bearing and inclination angle respectively provide are as follows: length travel is not more than 5mm, and lateral displacement is not more than 2mm, inclination
Angle is no more than 7 °.It is such as more than that above-mentioned standard will be adjusted and rebuild to the support；If when excessive beyond standard, trimming is not
In time, it is possible to the equipment faults such as pin shearing occur, directly affect traffic safety.
Detection for the tilt angle of rocker bearing generally wears range estimation using plummet eye, also needs to carry out inclination angle
It calculates, this method was not only backward but also cumbersome, and low efficiency, precision are low.
Utility model content
Based on this, it is necessary to overcome the deficiencies of existing technologies, provide a kind of deflection angle measurement instrument, it can be improved detection effect
Rate, while detection accuracy can be improved.
Its technical solution is as follows: a kind of deflection angle measurement instrument, comprising: measuring rod, the measuring rod are transparent bar, the measurement
Bar is equipped with contraposition center line, and the contraposition center line extends to the other end of the measuring rod from one end of the measuring rod；And
Inclinator, the inclinator are set on the measuring rod.
Above-mentioned deflection angle measurement instrument, when being measured using tilt angle of the above-mentioned measuring rod to determinand, by measuring rod
Center line and the center line of determinand aligned, the inclination angle of the center line of determinand is determined according to the reading on inclinator
The tilt angle of determinand can be obtained in degree.When determinand is specially rocker bearing, measuring rod is fitted in into shaking for rocker bearing
Axial end makes in determined by the contraposition center line of measuring rod and the upper central point and lower central point of the rocker end face of rocker bearing
Heart line is aligned, and the tilt angle of rocker bearing is determined according to the reading on inclinator.In this way, relative to rocker bearing
The detection efficiency of the traditional test mode of tilt angle, above-mentioned deflection angle measurement instrument is greatly improved, while detection accuracy is big
It is big to improve.
The measuring rod is equipped with the adjustable fitting of extension elongation in one of the embodiments, and the fitting is used
It is abutted against in the fastening bolt on the rocker end face with rocker bearing.
The measuring rod is equipped with threaded hole in one of the embodiments, and the fitting is and the threaded hole phase
The adjusting bolt of cooperation adjusts screw, and the fitting is set in the threaded hole.
The measuring rod is telescopic rod in one of the embodiments,；The measuring rod includes interior bar and outer bar, it is described in
Bar is movably sheathed in the outer bar.
The bottom end of the measuring rod is equipped with tip in one of the embodiments, and the contraposition center line extends to described
The cusp of tip.
The bottom end of the measuring rod is equipped with arc-shaped portion in one of the embodiments, and the contraposition center line extends to
The central point of the curved edge in the arc-shaped portion.
The deflection angle measurement instrument further includes levelling tube in one of the embodiments, and the levelling tube is set to described
On measuring rod.
Mounting groove is provided on the lateral wall of the measuring rod in one of the embodiments, the inclinator is set to
In the mounting groove.
The deflection angle measurement instrument further includes fixed frame in one of the embodiments, and the inclinator passes through fixed frame
It is installed on the measuring rod；The fixed frame is the elastic strip being set in the mounting groove, and the elastic strip is located at described
Between inclinator and the inner sidewall of the mounting groove.
Handle is provided on the side wall of the measuring rod in one of the embodiments,.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of deflection angle measurement instrument described in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of deflection angle measurement instrument described in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of deflection angle measurement instrument described in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of deflection angle measurement instrument described in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of rocker bearing described in an embodiment of the present invention；
State when Fig. 6 is the tilt angle of the measurement rocker bearing of deflection angle measurement instrument described in an embodiment of the present invention
Schematic diagram；
Shape when Fig. 7 is the tilt angle of the measurement rocker bearing of deflection angle measurement instrument described in another embodiment of the utility model
State schematic diagram.
Appended drawing reference:
10, measuring rod, 11, contraposition center line, 12, fitting, 13, interior bar, 14, outer bar, 15, tip, 151, cusp,
16, arc-shaped portion, 161, the central point of curved edge, 17, mounting groove, 18, fixed frame, 19, handle, 20, inclinator, 30, shake
Shaft stool, 31, upper bracket plate, 32, rocker, 321, upper central point, 322, lower central point, 323, center line, 33, lower support plate,
34, fastening bolt, 40, levelling tube.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.Many details are explained in the following description in order to abundant
Understand the utility model.But the utility model can be implemented with being much different from other way described herein, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
In the description of the present invention, it should be understood that term " first ", " second " are used for description purposes only, and
It cannot be understood as indicating or implying relative importance or implicitly indicate the quantity of indicated technical characteristic.It defines as a result,
The feature of " first ", " second " can explicitly or implicitly include at least one of the features.In the description of the present invention,
The meaning of " plurality " is at least two, such as two, three etc., unless otherwise specifically defined.
In the description of the present invention, it should be understood that when an element is considered as " connection " another element,
It can be directly to another element or may be simultaneously present intermediary element.On the contrary, when element be referred to as " direct " and
When another element connects, intermediary element is not present.
In one embodiment, Fig. 1 and Fig. 6, a kind of deflection angle measurement instrument, including measuring rod 10 and inclinator 20 are please referred to.
The measuring rod 10 is transparent bar, and the measuring rod 10 is equipped with contraposition center line 11.The contraposition center line 11 is from the measurement
One end of bar 10 extends to the other end of the measuring rod 10.The inclinator 20 is set on the measuring rod 10.
Above-mentioned deflection angle measurement instrument will measure when being measured using above-mentioned measuring rod 10 to the tilt angle of determinand
The center line 323 of bar 10 is aligned with the center line 323 of determinand, is determined in determinand according to the reading on inclinator 20
The tilt angle of determinand can be obtained in the tilt angle of heart line 323.When determinand is specially rocker bearing 30, by measuring rod 10
The rocker end face for fitting in rocker bearing 30 makes the upper of contraposition center line 11 and the rocker end face of rocker bearing 30 of measuring rod 10
Central point 321 is aligned with center line 323 determined by lower central point 322, and is shaken according to the reading determination on inclinator 20
The tilt angle of shaft stool 30.In this way, the traditional test mode of the tilt angle relative to rocker bearing 30, above-mentioned pivot angle is surveyed
The detection efficiency of amount instrument is greatly improved, while detection accuracy greatly improves.
In one embodiment, the measuring rod 10 is equipped with the adjustable fitting 12 of extension elongation, the fitting 12
Fastening bolt 34 on the rocker end face with rocker bearing 30 abuts against.In this way, to the tilt angle of rocker bearing 30 into
Row measurement before, first adjust fitting 12 extension elongation, when measuring rod 10 being made to be in contact with rocker end face, fitting 12 synchronize to
It touches at the fastening bolt 34 on rocker end face to ensure that contraposition center line 11 is in a vertical state, turns then along rocker end face
Dynamic measuring rod 10 makes the upper central point 321 for aligning the rocker end face of center line 11 and rocker bearing 30 and lower 322 institute of central point
Determining center line 323 is aligned.It just can be improved the detection accuracy of the tilt angle of rocker bearing 30 in this way.
Further, the measuring rod 10 is equipped with threaded hole, and the fitting is the tune closed with the corresponding threaded holes
It saves bolt or adjusts screw, the fitting 12 is set in the threaded hole.In this way, rotation fitting 12, can adjust
The extension elongation of fitting 12, it is easy to operate.
In one embodiment, any one width is please referred to Fig.1 to Fig.4, the measuring rod 10 is telescopic rod.In this way, being directed to
In the rocker bearing 30 of different sizes, telescopic adjustment can be carried out to measuring rod 10, make measuring rod 10 and rocker end face phase
When contact, fitting 12 is synchronized at the fastening bolt 34 contacted on rocker end face, to can ensure that contraposition center line 11 is in
Vertical state.Specifically, the measuring rod 10 includes interior bar 13 and outer bar 14, the interior bar 13 is movably sheathed on described
In outer bar 14.In this way, realizing the scaling operation of measuring rod 10 by mobile interior bar 13.
In one embodiment, Fig. 3, Fig. 6 and Fig. 7 are please referred to, the bottom end of the measuring rod 10 is equipped with tip 15, described right
Position center line 11 extends to the cusp 151 of the tip 15.Specifically, tip 15 is triangle.In this way, to rocker bearing
In the measurement process of 30 tilt angle, align the cusp 151 of tip 15 and the lower central point 322 of rocker bearing 30,
It aligns center line 11 simultaneously and the upper central point 321 of rocker bearing 30 is aligned, be conducive to align center line 11 simultaneously in this way
Rapid-aligning is carried out with upper central point 321, the lower central point 322 of rocker bearing 30, detection efficiency is greatly improved, examines simultaneously
Precision is surveyed to greatly improve.
In another embodiment, referring to Fig. 4, the bottom end of the measuring rod 10 is equipped with arc-shaped portion 16, the contraposition
Center line 11 extends to the central point 161 of the curved edge in the arc-shaped portion 16.In this way, to the tilt angle of rocker bearing 30
Measurement process in, the lower central point 322 of the central point 161 that makes the curved edge in arc-shaped portion 16 and rocker bearing 30 carries out pair
Position, while aligning center line 11 and the upper central point 321 of rocker bearing 30 is aligned, be conducive to align center line 11 so together
When with the upper central point 321 of rocker bearing 30, lower central point 322 carry out rapid-aligning, detection efficiency is greatly improved, simultaneously
Detection accuracy greatly improves.
In one embodiment, the cross section of measuring rod 10 is square shape or round.In this way, measuring rod 10 both can be
Square pole, or cylindrical bar or the other shapes of body of rod.
In one embodiment, any one width, the deflection angle measurement instrument further include levelling tube 40 please see Fig. 2 to Fig. 4.
The levelling tube 40 is set on the measuring rod 10.In this way, processing can be corrected to inclinator 20 using levelling tube 40.
Secondly, being included the following steps: by levelling tube 40 to the corrected specific method of inclinator 20
Qualified horizontal ruler is placed on plate, adjusting gasket or clearance gauge makes plate be in level in both direction in length and breadth,
It will be placed on plate by levelling ruler again, and after bubble is stablized, read to obtain a1 by one end of bubble, then turn horizontal ruler
180 degree is placed on plate original position, according to the reading a2 that writes down the bubble other end on one side of first time reading, difference of reading twice
Half is the error of zero；
By adjusting screw, bubble is made to be located at 40 central location of levelling tube；
Measuring rod 10 is affixed on vertical plane, adjustment measuring rod 10 keeps measuring rod 10 in a vertical state, when bubble is located at
When 40 central location of levelling tube, the zero button of inclinator 20 is pressed, achievees the purpose that correct inclinator 20.
Wherein, when measuring rod 10 is in a vertical state, the contraposition center line 11 of measuring rod 10 is also at vertical state.
In another embodiment, levelling tube 40 can not also be used to correct inclinator 20, the correction to inclinator 20
Method includes the following steps:
Under calm weather state (or indoor), in certain cantilever design one plummet of (immovable) suspension, when plummet no longer
When swing, hold above-mentioned deflection angle measurement instrument (not can contact) as close as possible to plumb line, faces contraposition center line 11, makes in contraposition
Heart line 11 is overlapped with plumb line, at this point, the zero button of pressing inclinator 20, to just achieve the purpose that correct inclinator 20.
A plumb line can also be drawn on the wall, and hand-held 30 deflection angle measurement instrument of rocker bearing is attached on metope, faces measurement
Line is overlapped the contraposition center line 11 of measuring rod 10 with plumb line, presses the zero button of inclinator 20 at this time, reaches correction and incline
The purpose of angle instrument 20.
In one embodiment, any one width is please referred to Fig.1 to Fig.4, is provided with peace on the lateral wall of the measuring rod 10
Tankage 17, the inclinator 20 are set in the mounting groove 17.
Further, any one width is please referred to Fig.1 to Fig.4, the deflection angle measurement instrument further includes fixed frame 18.Inclinator
20 are installed on measuring rod 10 by fixed frame 18.Optionally, fixed frame 18 is the elastic strip being set in mounting groove 17, elasticity
Item is between inclinator 20 and the inner sidewall of mounting groove 17.In this way, inclinator 20 is fixedly installed on measuring rod 10, general feelings
Under condition, as long as fixed frame 18 does not damage, the requirement of 30 measurement accuracy of rocker bearing is also able to satisfy without correction inclinator 20.
In one embodiment, handle 19 is provided on the side wall of the measuring rod 10.Handle 19 is specifically selected high-strength light
Matter aluminum alloy materials.In this way, by handle 19, it can be convenient for holding measuring rod 10, and it is conveniently adjusted the angle of measuring rod 10.Specifically
For, handle 19 is two, and two handles 19 are respectively arranged at the two lateral walls of measuring rod 10.
Deflection angle measurement instrument in above-described embodiment, has the advantages that
(1) precision is high: measurement accuracy about at 0.2 ° or so, want by the deflection angle measurement precision for meeting the rocker bearing 30 of bridge
It asks.
(2) detection speed is fast: only needing to be positioned, i.e. readable；It is expected that the review time of a rocker bearing 30 can contract
It is as short as in 1 minute.
(3) structure is reliable: measuring rod 10 uses square structure, is hardly damaged；As long as structure is not damaged, corrected almost without palpus
Required precision can be met.
(4) easy to carry.
In one embodiment, referring to Fig. 5, rocker bearing 30 includes upper bracket plate 31, rocker 32 and lower support plate 33.
Upper bracket plate 31 is connected by rocker 32 with lower support plate 33.The mounting surface up and down of rocker 32 is two on same cylindrical surface
Cambered surface.Rocker bearing 30 is wanted by the swing of rocker 32 to adapt to the displacement of beam body.
In one embodiment, Fig. 5 to Fig. 7 is please referred to, a kind of 30 Different Deflection Angle Measurement of rocker bearing uses above-mentioned
Deflection angle measurement instrument, includes the following steps: described in one embodiment
The rocker end face that measuring rod 10 is fitted in rocker bearing 30 makes contraposition center line 11 and the institute of the measuring rod 10
The upper central point 321 and center line 323 determined by lower central point 322 for stating the rocker end face of rocker bearing 30 are aligned, and
The tilt angle of rocker bearing 30 is determined according to the reading on inclinator 20.
Above-mentioned 30 Different Deflection Angle Measurement of rocker bearing, due to use the deflection angle measurement instrument, technical effect by
Deflection angle measurement instrument is brought, and the traditional test mode of the tilt angle relative to rocker bearing 30, detection efficiency is greatly improved,
Detection accuracy greatly improves simultaneously.
In one embodiment, it before the rocker end face that measuring rod 10 is fitted in rocker bearing 30, further comprises the steps of:
Processing is corrected to inclinator 20 and contraposition center line 11.
Further, processing is corrected to inclinator 20 and contraposition center line 11 method particularly includes:
Levelling tube 40 is added on measuring rod 10, and processing is corrected to inclinator 20 using levelling tube 40.Pass through level
Pipe 40 includes the following steps: the corrected specific method of inclinator 20
Qualified horizontal ruler is placed on plate, adjusting gasket or clearance gauge makes plate be in level in both direction in length and breadth,
It will be placed on plate by levelling ruler again, and after bubble is stablized, read to obtain a1 by one end of bubble, then turn horizontal ruler
180 degree is placed on plate original position, according to the reading a2 that writes down the bubble other end on one side of first time reading, difference of reading twice
Half is the error of zero；
By adjusting screw, bubble is made to be located at 40 central location of levelling tube；
Measuring rod 10 is affixed on vertical plane, adjustment measuring rod 10 keeps measuring rod 10 in a vertical state, when bubble is located at
When 40 central location of levelling tube, the zero button of inclinator 20 is pressed, achievees the purpose that correct inclinator 20.
Wherein, when measuring rod 10 is in a vertical state, the contraposition center line 11 of measuring rod 10 is also at vertical state.
In another embodiment, levelling tube 40 can not also be used to correct inclinator 20, the correction to inclinator 20
Method includes the following steps:
Under calm weather state (or indoor), in certain cantilever design one plummet of (immovable) suspension, when plummet no longer
When swing, hold above-mentioned deflection angle measurement instrument (not can contact) as close as possible to plumb line, faces contraposition center line 11, makes in contraposition
Heart line 11 is overlapped with plumb line, at this point, the zero button of pressing inclinator 20, to just achieve the purpose that correct inclinator 20.
A plumb line can also be drawn on the wall, and hand-held 30 deflection angle measurement instrument of rocker bearing is attached on metope, faces measurement
Line is overlapped the contraposition center line 11 of measuring rod 10 with plumb line, presses the zero button of inclinator 20 at this time, reaches correction and incline
The purpose of angle instrument 20.
In one embodiment, measuring rod 10 is fitted in the rocker end face of rocker bearing 30 method particularly includes:
The measuring rod 10 is equipped with the adjustable fitting 12 of extension elongation, adjusts the extension elongation of fitting 12, makes to survey
When gauge rod 10 is in contact with rocker end face, fitting 12 is synchronized at the fastening bolt 34 contacted on rocker end face to ensure to align
Center line 11 is in a vertical state.
Further, make the measuring rod 10 contraposition center line 11 and the rocker bearing 30 rocker end face it is upper in
What center line 323 determined by heart point 321 and lower central point 322 was aligned method particularly includes: rotate and survey along rocker end face
Gauge rod 10 makes to align determined by the upper central point 321 and lower central point 322 of the rocker end face of center line 11 and rocker bearing 30
Center line 323 is aligned.In this way, just can be improved the detection accuracy of the tilt angle of rocker bearing 30.
In one embodiment, make the rocker end face of the contraposition center line 11 and the rocker bearing 30 of the measuring rod 10
Upper central point 321 and lower central point 322 determined by center line 323 carry out contraposition specifically comprise the following steps: the measurement
The bottom end of bar 10 is equipped with tip 15, and the contraposition center line 11 extends to the cusp 151 of the tip 15, to rocker bearing 30
In the measurement process of tilt angle, align the cusp 151 of tip 15 and the lower central point 322 of rocker bearing 30, simultaneously
Contraposition center line 11 and the upper central point 321 of rocker bearing 30 are aligned.
In this way, being conducive to align center line 11 while be carried out with the upper central point 321 of rocker bearing 30, lower central point 322
Rapid-aligning, detection efficiency are greatly improved, while detection accuracy greatly improves.
In one embodiment, make the rocker end face of the contraposition center line 11 and the rocker bearing 30 of the measuring rod 10
Upper central point 321 the step of being aligned with center line 323 determined by lower central point 322 specifically comprise the following steps:
The bottom end of the measuring rod 10 is equipped with arc-shaped portion 16, and the contraposition center line 11 extends to the arc-shaped portion 16
The central point 161 of curved edge make the arc-shaped side in arc-shaped portion 16 in the measurement process of the tilt angle of rocker bearing 30
The central point 161 of edge is aligned with the lower central point 322 of rocker bearing 30, while aligning center line 11 and rocker bearing 30
Upper central point 321 is aligned.
In this way, being conducive to align center line 11 while be carried out with the upper central point 321 of rocker bearing 30, lower central point 322
Rapid-aligning, detection efficiency are greatly improved, while detection accuracy greatly improves.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of deflection angle measurement instrument characterized by comprising
Measuring rod, the measuring rod are transparent bar, and the measuring rod is equipped with contraposition center line, and the contraposition center line is from the survey
One end of gauge rod extends to the other end of the measuring rod；And
Inclinator, the inclinator are set on the measuring rod.
2. deflection angle measurement instrument according to claim 1, which is characterized in that it is adjustable that the measuring rod is equipped with extension elongation
Fitting, the fitting with the fastening bolt on the rocker end face of rocker bearing for abutting against.
3. deflection angle measurement instrument according to claim 2, which is characterized in that the measuring rod is equipped with threaded hole, described to support
Fitting is the adjusting bolt closed with the corresponding threaded holes or adjusts screw, and the fitting is set in the threaded hole.
4. deflection angle measurement instrument according to claim 2, which is characterized in that the measuring rod is telescopic rod；The measuring rod
Including interior bar and outer bar, the interior bar is movably sheathed in the outer bar.
5. deflection angle measurement instrument according to claim 1, which is characterized in that the bottom end of the measuring rod is equipped with tip, described
Contraposition center line extends to the cusp of the tip.
6. deflection angle measurement instrument according to claim 1, which is characterized in that the bottom end of the measuring rod is equipped with arc-shaped portion,
The contraposition center line extends to the central point of the curved edge in the arc-shaped portion.
7. deflection angle measurement instrument according to claim 1, which is characterized in that further include levelling tube, the levelling tube is set to
On the measuring rod.
8. deflection angle measurement instrument according to claim 1, which is characterized in that be provided with installation on the lateral wall of the measuring rod
Slot, the inclinator are set in the mounting groove.
9. deflection angle measurement instrument according to claim 8, which is characterized in that further include fixed frame, the inclinator passes through solid
It is fixed rack-mounted on the measuring rod；The fixed frame is the elastic strip being set in the mounting groove, and the elastic strip is located at
Between the inclinator and the inner sidewall of the mounting groove.
10. according to claim 1 to deflection angle measurement instrument described in 9 any one, which is characterized in that on the side wall of the measuring rod
It is provided with handle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920557298.4U CN209656040U (en) | 2019-04-23 | 2019-04-23 | Deflection angle measurement instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920557298.4U CN209656040U (en) | 2019-04-23 | 2019-04-23 | Deflection angle measurement instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336946A (en) * | 2020-05-07 | 2020-06-26 | 西南科技大学 | Device and method for measuring surface appearance of inner wall of cylindrical part based on non-diffraction light beam |
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2019
- 2019-04-23 CN CN201920557298.4U patent/CN209656040U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336946A (en) * | 2020-05-07 | 2020-06-26 | 西南科技大学 | Device and method for measuring surface appearance of inner wall of cylindrical part based on non-diffraction light beam |
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