CN210220964U - Digital display angle ruler based on magnetic field direction measurement - Google Patents
Digital display angle ruler based on magnetic field direction measurement Download PDFInfo
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- CN210220964U CN210220964U CN201921232600.5U CN201921232600U CN210220964U CN 210220964 U CN210220964 U CN 210220964U CN 201921232600 U CN201921232600 U CN 201921232600U CN 210220964 U CN210220964 U CN 210220964U
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Abstract
The utility model relates to a measuring instrument field, concretely relates to digital display bevel protractor based on magnetic field direction is measured, including rotating magnet subassembly, magnetic field determine module, ruler and base ruler, rotating magnet subassembly with the base ruler is connected, magnetic field determine module with the ruler is connected, rotating magnet subassembly with the relative rotation setting of magnetic field determine module, magnetic field determine module can detect the magnetic field azimuth and the change data of rotating magnet subassembly to obtain the angle that corresponds. This application a digital display bevel protractor based on magnetic field direction is measured, through magnetic field detection subassembly detects the magnetic field azimuth angle and the change data of rotating magnet subassembly obtain the measured angle, under the condition of guaranteeing measurement accuracy, can fall the end assembly degree of difficulty and assembly cost, and need not return to zero convenient operation before using at every turn.
Description
Technical Field
The utility model relates to a measuring instrument field, concretely relates to digital display bevel protractor based on magnetic field direction is measured.
Background
The angle ruler is an angle measuring instrument for measuring an angle through an included angle formed by the base ruler and the straight ruler which are abutted against a measured object.
The existing angle ruler is mainly divided into a mechanical angle ruler and a digital display angle ruler, wherein:
the mechanical angle ruler is generally designed as follows: the pointer on the instrument panel is driven to rotate through the relative rotation of the base ruler and the straight ruler, so that the measured angle is obtained, the method has the advantages of simplicity in installation, easiness in assembly and low cost, but the defect that the pointer on the instrument panel needs to be read manually, and the reading is inaccurate due to manual reasons is easily caused;
the existing digital display angle ruler generally utilizes a capacitive grating, electronic elements such as a grating directly convert angle change into electric signal output, the measured angle is obtained, human errors caused when the mechanical angle ruler is operated can be effectively reduced, and the angle ruler is more and more popular with users.
To sum up, need a digital display bevel protractor at present, under the condition of guaranteeing measurement accuracy, can fall the end assembly degree of difficulty and assembly cost, and need not return to zero before using at every turn, convenient operation.
SUMMERY OF THE UTILITY MODEL
Aiming at the problem that the reading of a mechanical angle ruler in the prior art is easy to be inaccurate due to artificial reasons; the digital display bevel protractor assembly degree of difficulty is big, the high problem of assembly cost, the utility model provides a based on magnetic field direction measuring digital display bevel protractor under the condition of guaranteeing measurement accuracy, can fall the end assembly degree of difficulty and assembly cost, and need not return to zero, convenient operation before using at every turn.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a digital display bevel protractor based on magnetic field direction is measured, includes rotating magnet subassembly, magnetic field determine module, ruler and base scale, the rotating magnet subassembly with the base scale is connected, the magnetic field determine module with the ruler is connected, the rotating magnet subassembly with the relative rotation of magnetic field determine module sets up, the magnetic field determine module can detect the magnetic field azimuth angle and the change data of rotating magnet subassembly to obtain the angle that corresponds.
This application a digital display bevel protractor based on magnetic field direction measurement, ruler and base chi support with survey the object and need the angle both sides face contact of measurement and lean on, then relative angle between ruler and the base chi is promptly for being surveyed the angle.
The rotary magnet assembly is connected with the base ruler, the magnetic field detection assembly is connected with the ruler, the rotary magnet assembly and the magnetic field detection assembly rotate relatively to be arranged, and the rotary magnet assembly is simple in structure and convenient to assemble.
The magnetic field azimuth angle and the change data of the rotating magnet assembly are detected by the magnetic field detection assembly, so that high precision can be achieved, and meanwhile, the magnetic field detection assembly generally comprises four Hall elements for eliminating the influence of the magnetic field intensity on azimuth angle measurement through difference, so that good measurement precision can be ensured.
Meanwhile, the rotating magnet component is connected with the base ruler, the magnetic field detection component is connected with the straight ruler, the rotating magnet component has a fixed magnetic field direction, when the rotating magnet component rotates, the magnetic field direction rotates along with the rotating magnet component, the magnetic field detection component can measure the rotating angle of the magnetic field relative to the magnetic field detection component,
in summary, according to the digital display angle ruler based on magnetic field direction measurement, the magnetic field azimuth angle and the change data thereof of the rotating magnet assembly are detected by the magnetic field detection assembly to obtain the measured angle, the assembly difficulty and the assembly cost can be reduced under the condition of ensuring the measurement precision, zero return is not needed before each use, and the operation is convenient.
Preferably, the rotating magnet assembly and the magnetic field detection assembly are rotatably arranged through a rotating shaft, the rotating magnet assembly and the rotating shaft are coaxially arranged, and the magnetic field detection assembly and the rotating magnet assembly are correspondingly arranged.
Preferably, the rotating magnet assembly is connected to the rotating shaft, and the rotating magnet assembly is disposed at one end of the rotating shaft close to the magnetic field detection assembly.
Preferably, the rotating shaft is provided with a first axial limit and a second axial limit, and the first axial limit and the second axial limit are both used for limiting the magnetic field detection assembly to axially move along the rotating shaft.
Preferably, the straightedge is detachably connected with the magnetic field detection assembly.
Preferably, be provided with the recess on the ruler, magnetic field detection subassembly be connected with recess matched with bulge, magnetic field detection subassembly be connected with be used for with the ruler with magnetic field detection subassembly reciprocal anchorage's closing device.
Preferably, the protruding portion is detachably connected with the magnetic field detection assembly, and the pressing device fixes the ruler and the magnetic field detection assembly to each other by pressing the protruding portion.
Preferably, the magnetic field detection device further comprises a display module, wherein the display module is used for receiving the measurement signal and displaying the corresponding angle data of the measurement signal, and the measurement signal can be output by the magnetic field detection assembly.
Preferably, the display module is electrically connected to the magnetic field detection assembly, and the magnetic field detection assembly includes a magnetic field angle encoder.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
this application a digital display bevel protractor based on magnetic field direction is measured, through magnetic field detection subassembly detects the magnetic field azimuth angle and the change data of rotating magnet subassembly obtain the measured angle, under the condition of guaranteeing measurement accuracy, can fall the end assembly degree of difficulty and assembly cost, and need not return to zero convenient operation before using at every turn.
Drawings
Fig. 1 is a schematic structural view (front view) of a digital display angle ruler based on magnetic field direction measurement according to the present application;
FIG. 2 is a cross-sectional view (left view) of a digital display angle ruler based on magnetic field direction measurement according to the present application;
the labels in the figure are: 1-rotating magnet assembly, 2-magnetic field detection assembly, 21-protrusion, 22-pressing device, 3-ruler, 31-groove, 4-base ruler, 5-rotation axis, 51-first axial limit, 52-second axial limit, and 6-display module.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 1-2, a digital display angle ruler based on magnetic field direction measurement, includes rotary magnet subassembly 1, magnetic field detection subassembly 2, ruler 3 and base scale 4, rotary magnet subassembly 1 with base scale 4 is connected, magnetic field detection subassembly 2 with ruler 3 is connected, rotary magnet subassembly 1 with magnetic field detection subassembly 2 rotates the setting relatively, magnetic field detection subassembly 2 can detect rotary magnet subassembly 1's magnetic field azimuth and change data to obtain corresponding angle.
This application a digital display bevel protractor based on magnetic field direction measurement, ruler 3 and base chi 4 support with survey the object and need the angle both sides face contact of measurement and lean on, then relative angle between ruler 3 and the base chi 4 is promptly for being surveyed the angle.
The rotary magnet assembly 1 is connected with the base ruler 4, the magnetic field detection assembly 2 is connected with the ruler 3, the rotary magnet assembly 1 and the magnetic field detection assembly 2 are arranged in a relatively rotating mode, the structure is simple, and assembly is convenient.
The magnetic field azimuth angle and the change data of the rotating magnet assembly 1 are detected by the magnetic field detection assembly 2, so that high precision can be achieved, and meanwhile, the magnetic field detection assembly 2 generally comprises four Hall elements for eliminating the influence of the magnetic field intensity on azimuth angle measurement through difference and ensuring good measurement precision.
At the same time. The rotating magnet assembly 1 is connected with the base ruler 4, the magnetic field detection assembly 2 is connected with the straight ruler 3, the rotating magnet assembly 1 is provided with a fixed magnetic field direction, when the rotating magnet assembly 1 rotates, the magnetic field direction rotates along with the rotating magnetic field direction, the magnetic field detection assembly 2 can measure the rotating angle of a magnetic field relative to the magnetic field detection assembly 2, as long as the angle between the straight ruler 3 and the base ruler 4 is known to be 0 degree, the initial value of the magnetic field azimuth angle of the rotating magnet assembly 1 is obtained, the angle between the straight ruler 3 and the base ruler 4 is equal to the difference value of the current value and the initial value of the magnetic field azimuth angle of the rotating magnet assembly 1 measured by the magnetic field detection assembly 2, zero resetting is not needed before measurement, measurement is carried out, and.
In summary, according to the digital display angle ruler based on magnetic field direction measurement, the magnetic field azimuth angle and the change data thereof of the rotating magnet assembly 1 are detected by the magnetic field detection assembly 2, the measured angle is obtained, the assembly difficulty and the assembly cost can be reduced under the condition that the measurement precision is ensured, zero return is not needed before use every time, and the operation is convenient.
In addition, in a more preferable mode, when the angle between the straight scale 3 and the base scale 4 is 0 degree, the azimuth angle of the magnetic field of the rotating magnet assembly 1 detected by the magnetic field detection assembly 2 is also 0 degree.
When the angle between the straight ruler 3 and the base ruler 4 is 0 degree, the initial value of the azimuth angle of the magnetic field of the rotating magnet assembly 1 is 0 degree, the angle between the straight ruler 3 and the base ruler 4 is equal to the current value of the azimuth angle of the magnetic field of the rotating magnet assembly 1 measured by the magnetic field detection assembly 2, and the operation is convenient.
Example 2
As shown in fig. 1-2, according to the digital display angle ruler based on magnetic field direction measurement described in embodiment 1, the rotary magnet assembly 1 and the magnetic field detection assembly 2 are rotatably disposed through a rotating shaft 5, the rotary magnet assembly 1 is disposed coaxially with the rotating shaft 5, and the magnetic field detection assembly 2 is disposed corresponding to the rotary magnet assembly 1.
In addition to the above, it is further preferable that the rotating magnet assembly 1 is connected to the rotating shaft 5, and the rotating magnet assembly 1 is provided at one end of the rotating shaft 5 close to the magnetic field detection assembly 2.
In addition, in a further preferable mode, the rotating shaft 5 is provided with a first axial limit 51 and a second axial limit 52, and both the first axial limit 51 and the second axial limit 52 are used for limiting the magnetic field detection assembly 2 to move axially along the rotating shaft 5.
Example 3
As shown in fig. 1-2, a digital display goniometer based on magnetic field direction measurement as described in example 1 or 2,
the ruler 3 is detachably connected with the magnetic field detection component 2.
On the basis, in a further preferable mode, the ruler 3 is provided with a groove 31, the magnetic field detection assembly 2 is connected with a protruding portion 21 matched with the groove 31, and the magnetic field detection assembly 2 is connected with a pressing device 22 used for fixing the ruler 3 and the magnetic field detection assembly 2 to each other.
On the basis of the above, it is further preferable that the protruding portion 21 is detachably connected to the magnetic field detection assembly 2, and the pressing device 22 fixes the straight scale 3 and the magnetic field detection assembly 2 to each other by pressing the protruding portion 21.
The pressing device 22 is a threaded bolt, and a threaded hole matched with the threaded bolt is formed in the magnetic field detection assembly 2.
Example 4
As shown in fig. 1-2, the digital display angle ruler based on magnetic field direction measurement according to embodiment 3 further includes a display module 6, the magnetic field detection assembly 2 can output a measurement signal, and the display module 6 is configured to receive the measurement signal and display corresponding angle data thereof.
On the basis, in a further preferable mode, the display module 6 is disposed on the magnetic field detection assembly 2, the magnetic field detection assembly 2 includes a magnetic field angle encoder and a housing, and the magnetic field angle encoder is disposed on an inner wall of the housing. The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a digital display angle ruler based on magnetic field direction is measured, its characterized in that, includes rotating magnet subassembly (1), magnetic field detection subassembly (2), ruler (3) and base chi (4), rotating magnet subassembly (1) with base chi (4) are connected, magnetic field detection subassembly (2) with ruler (3) are connected, rotating magnet subassembly (1) with magnetic field detection subassembly (2) rotate the setting relatively, magnetic field detection subassembly (2) can detect the magnetic field azimuth and the change data of rotating magnet subassembly (1) to obtain the angle that corresponds.
2. The digital display angle ruler based on magnetic field direction measurement according to claim 1, wherein the rotating magnet assembly (1) and the magnetic field detection assembly (2) are rotatably arranged through a rotating shaft (5), the rotating magnet assembly (1) and the rotating shaft (5) are coaxially arranged, and the magnetic field detection assembly (2) and the rotating magnet assembly (1) are correspondingly arranged.
3. The digital display angle ruler based on magnetic field direction measurement according to claim 2, characterized in that the rotating magnet assembly (1) is connected with the rotating shaft (5), and the rotating magnet assembly (1) is arranged at one end of the rotating shaft (5) close to the magnetic field detection assembly (2).
4. The digital display angle ruler based on magnetic field direction measurement according to claim 2, characterized in that the rotating shaft (5) is provided with a first axial limit (51) and a second axial limit (52), and the first axial limit (51) and the second axial limit (52) are both used for limiting the magnetic field detection assembly (2) to move axially along the rotating shaft (5).
5. A digital display goniometer for magnetic field direction measurement based on claim 1, characterized in that the straight ruler (3) is detachably connected to the magnetic field detection component (2).
6. A digital display angle ruler based on magnetic field direction measurement according to claim 5, characterized in that, the ruler (3) is provided with a groove (31), the magnetic field detection component (2) is connected with a protrusion (21) matched with the groove (31), the magnetic field detection component (2) is connected with a pressing device (22) for fixing the ruler (3) and the magnetic field detection component (2) to each other.
7. A digital display goniometer based on magnetic field direction measurement according to claim 6, characterized in that the protrusion (21) is detachably connected with the magnetic field detection assembly (2), and the pressing device (22) fixes the straight edge (3) and the magnetic field detection assembly (2) to each other by pressing the protrusion (21).
8. The digital display angle ruler based on magnetic field direction measurement according to any one of claims 1 to 7, characterized by further comprising a display module (6), wherein the magnetic field detection component (2) can output a measurement signal, and the display module (6) is used for receiving the measurement signal and displaying the corresponding angle data.
9. The digital display angle ruler based on magnetic field direction measurement according to claim 8, characterized in that the display module (6) is electrically connected with the magnetic field detection assembly (2).
10. A digital display goniometer based on magnetic field direction measurement according to any one of claims 1-7, characterized in that the magnetic field detection assembly (2) comprises a magnetic field angle encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921232600.5U CN210220964U (en) | 2019-07-31 | 2019-07-31 | Digital display angle ruler based on magnetic field direction measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921232600.5U CN210220964U (en) | 2019-07-31 | 2019-07-31 | Digital display angle ruler based on magnetic field direction measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210220964U true CN210220964U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921232600.5U Active CN210220964U (en) | 2019-07-31 | 2019-07-31 | Digital display angle ruler based on magnetic field direction measurement |
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| Country | Link |
|---|---|
| CN (1) | CN210220964U (en) |
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2019
- 2019-07-31 CN CN201921232600.5U patent/CN210220964U/en active Active
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