CN107462163B - Optical lever measuring device - Google Patents
Optical lever measuring device Download PDFInfo
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- CN107462163B CN107462163B CN201710705201.5A CN201710705201A CN107462163B CN 107462163 B CN107462163 B CN 107462163B CN 201710705201 A CN201710705201 A CN 201710705201A CN 107462163 B CN107462163 B CN 107462163B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of optical lever measuring devices, belong to physical experiment apparatus technical field, including bottom plate, top plate, laser, two reflective mirrors being parallel to each other, reflecting mirror, connection frame, support leg, with graduated display screen and support；The support is fixedly mounted on a reflective mirror, trunnion axis is equipped between the connection frame and the support, described connection frame one end is fixedly connected with reflecting mirror, and the other end is fixedly connected with the support leg, when the support leg vertically moves, the connection frame can be rotated around the trunnion axis；The laser is arranged close to another reflective mirror, and for the light that the laser issues after reflecting mirror reflection, the angle of projection and reflective mirror projection on the bottom plate of the optical path on the bottom plate is acute angle.Operation of the present invention and convenient reading, and the process of the variation read when object length variation can be observed；Measurement efficiency is high；It occupies little space, is conducive to the space utilization rate for improving laboratory.
Description
Technical field
The invention belongs to physical experiment apparatus technical field more particularly to a kind of optical lever measuring devices.
Background technique
The minor alteration amount of measurement length, such as the poplar with pulling method measurement material are frequently necessary in various scientific experiments
Family name's modulus is exactly wherein common one kind, and traditional pulling method measurement metal Young's modulus is using feed rod rod principle, by metal
Silk is passed through specular light lever amplification by the Chroococcus minutus under pulling force effect, and the telescope by being placed in distant place and scale carry out
Observation.
But the measurement method of above-mentioned optical lever has the disadvantage in that
One, the multiple of the amplification of optical lever is less than normal.The enlargement ratio of optical lever is directlyed proportional at a distance from mirror surface and scale
, mirror surface is bigger at a distance from scale, and the enlargement ratio of optical lever is bigger, and measurement accuracy is higher, but due to the experiment of university
The space of room is limited, general namely one to two meters of distance, the steel wire of such diameter 0.3mm or so, in the effect of a Newton force
Under, finally only half millimeter or so of the reading variation on scale, measurement accuracy is not high.
Two, it is inconvenient to operate and read, and modulus measurer adjusts pulling force parameter and observation scale numerical value different
Position, experimenter need to move back and forth at both ends, the variation read when influencing conventional efficient, and cannot observe tension variations
Process.
Three, telescope adjustment is difficult, needs long time to adjust telescope to make scale present in telescope
Clearly as, or even adjust telescope time be far longer than the time specifically measured.
Four, it is big to occupy lab space, is unfavorable for the utilization efficiency in raising laboratory.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of optical lever measuring device, measurement accuracy is high；Operation and reading
Number is convenient, and can observe the process of the variation read when object length variation；Measurement efficiency is high；It occupies little space, is conducive to
Improve the space utilization rate in laboratory.
In order to solve the above technical problems, the technical scheme is that optical lever measuring device, including bottom plate, top plate, swash
Light device, two reflective mirrors being parallel to each other, reflecting mirror, connection frame, support leg, with graduated display screen and support, two is described anti-
Light microscopic and the display screen are vertically arranged on the bottom plate, the top plate be arranged in two reflective mirrors top it
Between, the reflective surface of two reflective mirrors is oppositely arranged；
The support is fixedly mounted on a reflective mirror, and trunnion axis is equipped between the connection frame and the support,
Described connection frame one end is fixedly connected with reflecting mirror, and the other end is fixedly connected with the support leg, the support leg and the reflecting mirror
The two sides of the reflective mirror are located at, the reflective surface of the reflecting mirror and the reflective mirror is located at identical side, when described
When support leg vertically moves, the connection frame can be rotated around the trunnion axis；
The laser is arranged close to another reflective mirror, and the light that the laser issues is reflected by the reflecting mirror
Afterwards, the angle of projection and reflective mirror projection on the bottom plate of the optical path on the bottom plate is acute angle；
The light that the laser issues to the reflecting mirror, the reflecting mirror again reflection laser to the reflective mirror and two
Roundtrip forms optical path between the reflective mirror, and the end of the optical path is arranged in the display screen.
As an improvement the optical path between the display screen and the reflective mirror is equipped with laser display position tune
Mirror is saved, the laser display position adjusts mirror and is vertically arranged on the top plate, and laser is through the reflective mirror last time
After reflection, mirror is adjusted by the laser display position, the laser display position adjusts mirror and reflects the laser light to the display
On screen.
As a further improvement, it is plane, the laser display position that the laser display position, which adjusts the reflecting surface of mirror,
It sets and is additionally provided with one word of laser display mirror in the optical path adjusted between mirror and the display screen, one word of laser shows mirror pair
Laser beam carries out horizontal broadening.
As a further improvement, one word of laser shows that mirror is mono- wordline lens of Bao Weier.
As a further improvement, the top plate is equipped with guide rail, the extending direction of the guide rail and the reflective mirror
Extending direction is consistent, and the laser display position adjusts mirror and is slidably mounted on the guide rail.
As a further improvement, the guide rail is equipped with sliding block, and the laser display position adjusts mirror and the sliding block
Between be equipped with angle adjustment device, the adjustable laser display position of the angle adjustment device adjusts the horizontal angle of mirror
Degree, to change the position of laser irradiation on the display screen.
As a further improvement, it is vertically arranged cylindrical surface that the laser display position, which adjusts the reflecting surface of mirror,.
As an improvement the trunnion axis is fixedly installed in a vertical axes, the vertical axes rotational installation is in described
On support.
As a further improvement, the positioning mechanism for determining light path is equipped between the vertical axes and the support,
The positioning mechanism includes:
The mounting groove being radially set in the vertical axes, is slidably fitted with positioning pin, the positioning in the mounting groove
It sells and is equipped with elastic component between one end and the mounting groove, the other end stretches out the vertical axes；
Multiple locating pieces, the locating piece is located at the periphery of the vertical axes and is fixedly mounted on the support, described
Locating piece is equipped with locating slot compatible with the extension end of the positioning pin.
As an improvement the optical lever measuring device further includes range-measuring circuit, the range-measuring circuit includes pulse tune
Circuit processed, laser receive circuit, control and signal processing circuit and display circuit；
When needing to measure optical path length, manually boot the control and signal processing circuit, the control at signal
It manages circuit and issues trigger signal, the pulse modulated circuit issues pulse drive signal to the laser, the laser hair
In laser irradiation out to the display screen, the reflected light of the display screen receives circuit by the laser and receives, and is transferred to institute
Control and signal processing circuit are stated, the control and signal processing circuit utilize trigger signal and the laser return signal received
Time difference to calculate light path, and calculated result is transferred on the display circuit；
When not having trigger signal, the pulse modulated circuit exports normal level and the laser is driven continuously to send out
Light.
After above-mentioned technical proposal, the beneficial effects of the present invention are:
Since optical lever measuring device devises bottom plate, top plate, laser, two reflective mirrors being parallel to each other, reflecting mirror, company
Connect frame, support leg, with graduated display screen and support；Thus in measurement, support leg is placed in the upper surface of testee, when
When minor change occurs for testee length, support leg is with minute movement is done, and connection frame can be rotated around trunnion axis at this time, in this way
The light that laser issues is to reflecting mirror, and reflecting mirror again come to the reflective mirror and between two reflective mirrors by upward reflection laser
Multiple reflections are returned, micro-displacement is just zoomed into biggish displacement of the lines, is finally projected on display screen.Due to reflecting mirror reflection
Light roundtrip between two reflective mirrors to increase the light path of laser optical path, that is, increases the times magnification of optical lever
Number, and then increase the measurement sensitivity and accuracy of optical lever；While increasing laser light path, and because increasing light path is
It is obtained by multiple reflection, the distance between two reflective mirrors can not need too greatly, so ensure that feed rod rod volume is tight
It gathers, occupies little space, therefore same laboratory can accommodate more experimental facilities, can allow and more people while do reality
It tests, substantially increases the utilization rate in laboratory.In addition, the optical lever measuring device can directly be read by display screen, because
This convenient reading can observe the process of the variation read when length variation.
Optical lever measuring device accuracy provided by the invention is high；Operation and convenient reading, and it is long to observe object
The process of the variation read when degree variation；Measurement efficiency is high；It occupies little space, is conducive to the space utilization rate for improving laboratory.
Mirror is adjusted since the optical path between the display screen and the reflective mirror is equipped with laser display position, it is described
Laser display position adjusts mirror and is vertically arranged on the top plate, and laser is passed through after the reflective mirror last time reflects
It crosses the laser display position and adjusts mirror, the laser display position adjusts mirror and reflects the laser light on the display screen, thus
Adjusting mirror by laser display position can change the position of laser irradiation on a display screen.
One word of laser is additionally provided in the optical path between mirror and the display screen since the laser display position is adjusted
Show that mirror facilitates reading so that laser is in that a word is shown on a display screen.
Since the top plate is equipped with guide rail, the laser display position adjusts mirror and is slidably mounted on the guide rail, because
And the position for changing laser display position and adjusting mirror that can be convenient.
It is equipped with angle adjustment device between mirror and the sliding block since the laser display position is adjusted, passes through angular adjustment
Device can change laser display position and adjust the angle of mirror, to change the reflection angle of laser, adjust laser irradiation aobvious
Position in display screen.
It, can be by laser facula in display screen level since the reflecting surface that the laser display position adjusts mirror is cylindrical surface
It is unfolded on direction, facilitates reading.
Since the trunnion axis is fixedly installed in a vertical axes, vertical axes rotational installation on the support, because
And the connection frame and reflecting mirror can be made to do by vertical axes and horizontally rotated, the light that laser can in this way issued is by reflecting mirror
After reflection, the angle of projection projection with the reflective mirror on the bottom plate of the optical path on the bottom plate changes,
And then order of reflection of the adjustable laser between two reflective mirrors, so that the total optical path from laser to display screen is adjusted, from
And change the amplification factor of measuring device, and then adapt to the measurement of a variety of tiny lengths.
Due to being equipped with the positioning mechanism for determining light path between the vertical axes and the support, thus during fabrication,
The rotation position of vertical axes can be determined according to light path, so that it is determined that the installation site of each locating piece out, when in use, when
When vertical axes rotate to each position location, laser can have the light path of a determination, improve the convenience used
Degree.
Since the optical lever measuring device further includes range-measuring circuit, laser can accurately be calculated by range-measuring circuit
Light path.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention one；
Fig. 2 is the relative position schematic diagram of reflecting mirror, connection frame, trunnion axis, vertical axes and support；
Fig. 3 is the enlarged structure schematic diagram of vertical axes and positioning mechanism；
Fig. 4 is the equivalent schematic diagram for increasing the amplification factor of optical lever by increasing laser light path；
Fig. 5 is the structural schematic diagram that laser optical path projects on bottom plate in Fig. 1；
Fig. 6 is the structural block diagram of range-measuring circuit；
Fig. 7 is the structural schematic diagram of the embodiment of the present invention two；
Fig. 8 is the structural schematic diagram that one word of laser shows mirror in Fig. 7；
Fig. 9 is the structural schematic diagram of the embodiment of the present invention three；
Figure 10 is the structural schematic diagram of the embodiment of the present invention four；
In figure: 1- bottom plate, 2- laser, 3- reflective mirror, 4- reflecting mirror, 5- connection frame, 6- support leg, 7- display screen, 8-
Support, 9- trunnion axis, 10- optical path, 11- laser display position adjusting mirror, 12- vertical axes, 13- positioning mechanism, 131- positioning pin,
132- elastic component, 133- locating piece, 134- locating slot, one word of 14- laser display mirror, 15- top plate, 16- guide rail, 17- sliding block,
18- angle adjustment device.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment one
As Fig. 1 to Fig. 3 jointly shown in, a kind of optical lever measuring device, including bottom plate 1, top plate 15, laser 2, mutually flat
Capable two reflective mirrors 3, reflecting mirror 4, connection frame 5, support leg 6, with graduated display screen 7 and support 8, two reflective mirrors 3
Vertically it is arranged on bottom plate 1 with display screen 7, top plate 15 is arranged between the top of two reflective mirrors 3, two reflective mirrors 3
Reflective surface be oppositely arranged.
Support 8 is fixedly mounted on a reflective mirror 3, and trunnion axis 9,5 one end of connection frame are equipped between connection frame 5 and support 8
It is fixedly connected with reflecting mirror 4, the other end is fixedly connected with support leg 6, and support leg 6 and reflecting mirror 4 are located at the two sides of reflective mirror 3,
Reflecting mirror 4 and 3 reflective surface of reflective mirror are located at identical side, and when support leg 6 vertically moves, connection frame 5 can be around trunnion axis 9
Rotation.
Laser 2 is arranged close to another reflective mirror 3, and after the reflection of reflecting mirror 4, optical path exists the light that laser 2 issues
The angle of projection and projection of the reflective mirror 3 on bottom plate 1 on bottom plate 1 is acute angle.
The light that laser 2 issues to reflecting mirror 4, reflecting mirror 4 again reflection laser to reflective mirror 3 and two reflective mirrors 3 it
Between roundtrip form optical path 10, the end of optical path 10 is arranged in display screen 7.
In order to project laser smoothly on display screen 7, the optical path 10 between display screen 7 and reflective mirror 3 is equipped with laser
Display position adjusts mirror 11, and laser display position adjusts mirror 11 and is vertically arranged on top plate 15, and laser is last through reflective mirror 3
After primary event, mirror 11 is adjusted by laser display position, laser display position adjusts mirror 11 and reflects the laser light to display screen 7
On.In this way, adjusting mirror 11 by laser display position can change position of the laser irradiation on display screen 7.
In order to adapt to the measurement of different lengths variable quantity, it is preferred that trunnion axis 9 is fixedly installed in a vertical axes 12, is erected
D-axis 12 is rotatablely installed on support 8.Connection frame 5 and reflecting mirror 4 can be made to do and horizontally rotate by vertical axes 12, can make to swash in this way
The light that light device 2 issues is after the reflection of reflecting mirror 4, and optical path is in the projection and projection of the reflective mirror 3 on bottom plate 1 on bottom plate 1
Angle change, and then order of reflection of the adjustable laser between two reflective mirrors 3, to adjust from reflecting mirror 4
To the total optical path of display screen 7, to change the amplification factor of measuring device.
In order to improve the comfort level used, when vertical axes 12 rotate to each position, laser 2 can have known to one
Determination light path, it is preferred that positioning mechanism 13 for determining light path, the localization machine are equipped between vertical axes 12 and support 8
Structure 13 includes:
The mounting groove (not shown) being radially set in vertical axes 12, is slidably fitted with positioning pin 131 in mounting groove,
Elastic component 132 is equipped between 131 one end of positioning pin and mounting groove, the other end stretches out vertical axes 12, and elastic component 132 is preferably bullet
Spring；
Multiple locating pieces 133, locating piece 133 are located at the periphery of vertical axes 12 and are fixedly mounted on support 8, locating piece
133 are equipped with locating slot 134 compatible with the extension end of positioning pin 131.
So during fabrication, the rotation position of vertical axes 12 can be determined according to light path, so that it is determined that each positioning out
The installation site of block 133.
Its working principles are as follows:
In measurement, support leg 6 is placed in the upper surface of testee, when minor change occurs for testee length, branch
Support foot 6 is with minute movement is done, and connection frame 5 can be rotated around trunnion axis 9 at this time, the light that such laser 2 issues to reflecting mirror 4,
4 reflection laser of reflecting mirror multiple reflections back and forth to reflective mirror 3 and between two reflective mirrors 3, just by micro-displacement zoom into compared with
Big displacement of the lines is finally projected on display screen 7.Due to reflecting mirror 4 reflect light between two reflective mirrors 3 roundtrip,
To increase the light path of laser optical path, that is, the amplification factor of optical lever is increased, and then increase the measurement of optical lever
Sensitivity and accuracy；While increasing laser light path, and because increasing light path is obtained by multiple reflection, two
The distance between reflective mirror 3 can not need too greatly, so ensure that optical lever volume compact, to occupy little space, therefore same
Laboratory can accommodate more experimental facilities, can allow and more people while test, substantially increase the benefit in laboratory
With rate.In addition, the optical lever measuring device can directly be read by display screen 7, therefore convenient reading, object can be observed
The process for the variation that length is read when changing.
It is as follows above by the principle for increasing the amplification factor that laser light path increases optical lever:
As shown in figure 4, in figure OC be since reflecting mirror 4 ing along laser optical path 10 arrival display screen 7 total optical path etc.
Imitate distance；B is that testee changes length rear support foot 6 and testee tie point, and AB is the knots modification of testee length,
OB is the distance between the tie point and 9 axis of trunnion axis；C is initial position of the laser on display screen 7, and D is testee
Position of the laser on display screen 7 after change length, CD are the variable quantity of display screen reading；Because the length of optical lever measurement changes
Become all very littles, so angle AOB very little, so OA is approximately equal to OB, the knots modification of AB/OA=CD/OC, length can be under
Face formula acquires, AB=CD*OA/OC, approximate: AB=CD*OB/OC, in formula as can be seen that when AB, OB are determined,
OC increases, and CD also increases, and CD increases, so that it may increase the sensitivity of optical lever.
In practical applications, the total length of light path, i.e., the length of above-mentioned OC can be calculated by the following two kinds mode.
First way are as follows: as shown in figure 5, L1 is the distance between two reflective mirrors 3 in figure, α is what laser 2 issued
Light is after the reflection of reflecting mirror 4, the angle of projection of the optical path on bottom plate 1 and 3 vertical line of reflective mirror, and L2 is optical path in reflective mirror
After 3 last time reflection, for reflective mirror 3 at a distance from the laser optical path that laser display position adjusts between mirror 11, L3 is along sharp
Light optical path, laser display position adjust mirror 11 and arrive the distance between display screen 7, and L4 is the light issued along laser optical path laser 2
The distance between to reflecting mirror 4.Again because of laser angulation change amount very little in vertical direction, it is possible to be approximately considered laser
Light path is identical in entire measurement process.The light path of laser can be calculated with following formula: laser light path=L1*cos
(α) * light order of reflection+L2+L3.Wherein, L2 and L3 can according to laser display position adjust mirror 11 angle and its with it is anti-
The distance between light microscopic 3 and display screen 7 calculate and are learnt, details are not described herein.
The second way are as follows: as shown in fig. 6, optical lever measuring device further includes range-measuring circuit, range-measuring circuit includes pulse
Modulation circuit, laser receive circuit, control and signal processing circuit and display circuit, and laser receives the reception circuit senses of circuit
Device is arranged close to the position of 7 centre-height of display screen；When needing to measure optical path length, control and signal processing electricity are manually booted
Road, control issue trigger signal with signal processing circuit, and pulse modulated circuit issues pulse drive signal to laser 2, laser
In the laser irradiation to display screen 7 that device 2 issues, the reflected light of display screen 7 receives circuit by laser and receives, and is transferred to control and letter
Number processing circuit, control and signal processing circuit are calculated using the time difference of trigger signal and the laser return signal received
Light path, and calculated result is transferred on display circuit；When not having trigger signal, pulse modulated circuit exports normal level
Drive 2 continuous luminous of laser.In this way, can accurately calculate the light path of laser by range-measuring circuit.
It should be noted that above-mentioned pulse modulated circuit, laser receive circuit, control and signal processing circuit and display electricity
Road is techniques known, and details are not described herein.
Embodiment two
The present embodiment is basically the same as the first embodiment, the difference is that, as shown in fig. 7, laser display position is adjusted
The reflecting surface of mirror 11 is plane, and laser display position adjusts and is additionally provided with one word of laser in the optical path 10 between mirror 11 and display screen 7
Show that mirror 14, one word of laser show that mirror 14 carries out horizontal broadening to laser beam, as shown in Figure 8, so that laser is being shown
It is shown on screen 7 in one word of level, facilitates reading.
Preferably, one word of laser shows that mirror 14 is mono- wordline lens of Bao Weier.
Embodiment three
The present embodiment is basically the same as the first embodiment, the difference is that, as shown in figure 9, top plate 15 is equipped with guide rail
16, certainly, guide rail 16 also may be mounted on bottom plate 1, and the extending direction of guide rail 16 is consistent with the extending direction of reflective mirror 3,
Laser display position adjusts mirror 11 and is slidably installed on track 16.The change laser display position that can be convenient in this way adjusts mirror 11
Position, avoid because change laser reflection angle, occur laser optical path deflect away from laser display position adjust 11 range problem of mirror.
The reflecting surface that laser display position adjusts mirror 11 is plane, and guide rail 16 is equipped with sliding block 17, laser display position tune
It saves and is equipped with angle adjustment device 18 between mirror 11 and sliding block 17, angle adjustment device 18 is preferably shaft (not shown) etc.
Deng being well known to those skilled in the art, details are not described herein.The adjustable laser display position of angle adjustment device 18 is adjusted
The level angle of mirror 11, to change position of the laser irradiation on display screen 7.
Example IV
The present embodiment and embodiment three are essentially identical, the difference is that, as shown in Figure 10, laser display position is adjusted
The reflecting surface of mirror 11 is vertically arranged cylindrical surface, and is not provided with angle adjustment device 18, laser facula can shown
Shield and be unfolded in 7 horizontal directions, facilitates reading.
Optical lever measuring device accuracy provided in an embodiment of the present invention is high；Operation and convenient reading, and can observe
The process for the variation that object length is read when changing；Measurement efficiency is high；It occupies little space, is conducive to the space benefit for improving laboratory
With rate.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. optical lever measuring device, which is characterized in that including bottom plate, top plate, laser, two reflective mirrors being parallel to each other, reflection
Mirror, connection frame, support leg, with graduated display screen and support, two reflective mirrors and the display screen are vertically arranged
On the bottom plate, the top plate is arranged between the top of two reflective mirrors, and the reflective surface of two reflective mirrors is opposite to be set
It sets；
The support is fixedly mounted on a reflective mirror, and trunnion axis is equipped between the connection frame and the support, described
Connection frame one end is fixedly connected with reflecting mirror, and the other end is fixedly connected with the support leg, the support leg and reflecting mirror difference
Positioned at the two sides of the reflective mirror, the reflective surface of the reflecting mirror and the reflective mirror is located at identical side, when the support
When foot vertically moves, the connection frame can be rotated around the trunnion axis；The trunnion axis is fixedly installed in a vertical axes, institute
Vertical axes rotational installation is stated on the support；The localization machine for determining light path is equipped between the vertical axes and the support
Structure, the positioning mechanism include: the mounting groove being radially set in the vertical axes, are slidably fitted with positioning in the mounting groove
Pin, is equipped with elastic component between described positioning pin one end and the mounting groove, the other end stretches out the vertical axes；Multiple locating pieces,
The locating piece is located at the periphery of the vertical axes and is fixedly mounted on the support, the locating piece be equipped with it is described fixed
The compatible locating slot in extension end of position pin；
The laser is arranged close to another reflective mirror, the light that the laser issues after reflecting mirror reflection,
The angle of projection and reflective mirror projection on the bottom plate of its optical path on the bottom plate is acute angle；
The light that the laser issues to the reflecting mirror, the reflecting mirror again reflection laser to the reflective mirror and described in two
Roundtrip forms optical path between reflective mirror, and the display screen is located between the bottom plate and the top plate, and the display screen
Set up separately with the laser in the opposite two sides of the bottom plate；
The optical path between the display screen and the reflective mirror is equipped with laser display position and adjusts mirror, the laser display
Position adjusts mirror and is vertically arranged on the top plate, and laser swashs after the reflective mirror last time reflects by described
Light display position adjusts mirror, and the laser display position adjusts mirror and reflects the laser light on the display screen.
2. optical lever measuring device according to claim 1, which is characterized in that the laser display position adjusts the anti-of mirror
Penetrating face is plane, and it is aobvious to be additionally provided with one word of laser in the optical path between the laser display position adjusting mirror and the display screen
Show that mirror, one word of laser show that mirror carries out horizontal broadening to laser beam.
3. optical lever measuring device according to claim 2, which is characterized in that one word of laser shows that mirror is Bao Weier
One wordline lens.
4. optical lever measuring device according to claim 1, which is characterized in that the top plate is equipped with guide rail, described to lead
The extending direction of rail is consistent with the extending direction of the reflective mirror, and the laser display position adjusting mirror is slidably mounted on described
On guide rail.
5. optical lever measuring device according to claim 4, which is characterized in that the guide rail is equipped with sliding block, described to swash
Light display position adjusts and is equipped with angle adjustment device between mirror and the sliding block, and the angle adjustment device is adjustable described sharp
Light display position adjusts the level angle of mirror, to change the position of laser irradiation on the display screen.
6. optical lever measuring device according to claim 1, which is characterized in that the laser display position adjusts the anti-of mirror
Penetrating face is vertically arranged cylindrical surface.
7. according to claim 1 to optical lever measuring device described in any one of 6 claims, which is characterized in that described
Optical lever measuring device further includes range-measuring circuit, the range-measuring circuit include pulse modulated circuit, laser receive circuit, control with
Signal processing circuit and display circuit；
When needing to measure optical path length, the control and signal processing circuit, the control and signal processing electricity are manually booted
Road issues trigger signal, and the pulse modulated circuit issues what pulse drive signal was issued to the laser, the laser
In laser irradiation to the display screen, the reflected light of the display screen receives circuit by the laser and receives, and is transferred to the control
System and signal processing circuit, the control and signal processing circuit using trigger signal and the laser return signal received when
Between difference to calculate light path, and calculated result is transferred on the display circuit；
When not having trigger signal, the pulse modulated circuit exports normal level and drives the laser continuous luminous.
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| CN201710705201.5A CN107462163B (en) | 2017-08-17 | 2017-08-17 | Optical lever measuring device |
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|---|---|---|---|
| CN201710705201.5A CN107462163B (en) | 2017-08-17 | 2017-08-17 | Optical lever measuring device |
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| CN107462163A CN107462163A (en) | 2017-12-12 |
| CN107462163B true CN107462163B (en) | 2019-11-01 |
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| CN109238181B (en) * | 2018-09-29 | 2023-09-26 | 昆明理工大学 | Elevator track flatness detection system and method based on multistage optical lever |
| CN111174680B (en) * | 2020-02-10 | 2021-08-03 | 覃高杰 | Sensor and sensor multipoint deformation synchronous detection method |
| CN116295083B (en) * | 2023-05-12 | 2023-08-15 | 山东恒美电子科技有限公司 | Micron-sized small deformation amplifying device |
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