CN207600440U - A kind of optical lever method rangefinder - Google Patents
A kind of optical lever method rangefinder Download PDFInfo
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- CN207600440U CN207600440U CN201721756727.8U CN201721756727U CN207600440U CN 207600440 U CN207600440 U CN 207600440U CN 201721756727 U CN201721756727 U CN 201721756727U CN 207600440 U CN207600440 U CN 207600440U
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- China
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- millimeters
- micrometer caliper
- minute surface
- fixed
- sleeve
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model is a kind of novel distance-measuring device, can be used for physics experiment teaching.The device utilizes feed rod rod principle, devises a laboratory apparatus that can measure 25 meters of distances being made of range unit part and minute surface scale portion.Measuring device part in the instrument includes laser pen and micrometer caliper, during measurement, rotation micrometer caliper moves up the top of mircrometer gauge, so as to which the laser pen contacted therewith tail portion be pushed to start around fixed-axis rotation, then laser pen and light form optical lever, by measuring the distance of the top movement of micrometer caliper, the brachium of laser pen, the distance moved on minute surface scale with laser point then can measure out minute surface scale the distance between to measuring instrument.The device has principle simple, and it is accurate to measure, convenient for disassembly and assembly, contains the basic adjustment technical ability of experiment measurement and the training content of length instrument application method, is very suitable for Basic experimental teaching.
Description
Technical field
The utility model is related to a kind of measuring instrument more particularly to a kind of novel optical lever method rangefinders.
Background technology
Measurement of length will often be used in production and living, the appearance and size of product, Human Height, remote starry sky away from
How far from us, these are all that we are related to length range measurement problem in other words.The measurement of tiny length can be used and be read
Digital display micro mirror, laser interferometer can use global positioning system and optical telescope compared with telemeasurement, and within 1m to 100m
, tape measure, steel ruler and laser range finder can be used.
In physics experiment teaching, 1 meter or more of length is commonly used and is measured with tape measure, steel tape and laser range finder.Skin
Ruler and steel tape need two people to coordinate to complete to measure, although and laser range finder precision high measurement is accurate, which is automatic
It measures, without teaching demonstration effect.The characteristics of in order to which student is allowed to more fully understand linear measure longimetry, understands different length and measures such as
What selection instrument grasps some basic methods of adjustment of measuring instrument, we devise this convenient for teaching, suitable for basic real
The optical lever method rangefinder of test amount, which can not only meet 1 meter of routine experiment or more measurement of length, and the instrument accumulates
The knowledge point of many physics and the training content of experimental basic skills are contained, with more developing student thought mode, have taught through lively activities
Characteristics of demonstration characteristics, laboratory apparatus have in itself it is further improve and expand space, so this instrument is highly suitable for opening up
Linear measure longimetry is tested.
Utility model content
The utility model provides a kind of length measuring instrument of innovation, i.e., a kind of optical lever method rangefinder；It, which has, surveys
It away from mode novelty, is skillfully constructed, principle is simple, and device is easy to assembly, and measurement process contains the basic adjustment technology of experiment and some
The use of length measuring instrument is that training of students grasps the very comprehensive experimental project of infrastest technical ability, suitable for all kinds of bases
Plinth experimental teaching.
In order to achieve the above objectives, the utility model is achieved through the following technical solutions.
A kind of optical lever method rangefinder, including range unit and minute surface scale（9）, range unit and minute surface scale（9）It is
Respectively independent part, the range unit include pedestal（1）, laser pen（2）, micrometer caliper（3）, pin（4）, around axis revolve
Pivoted frame（5）, fixed frame（6）, sleeve（7）And polished rod（8）, the polished rod（8）It is threadedly attached in pedestal（1）On, laser pen
（2）It is fixed on spring leaf and is pivoted frame（5）On, it is pivoted frame（5）One end pass through pin（4）It is fixed on polished rod（8）
On, micrometer caliper（3）It is welded on fixed frame（6）One end, fixed frame（6）The other end be screwed in sleeve（7）On,
Sleeve（7）Height can be along polished rod（8）Adjustment, sleeve（7）Polished rod is fastened on by screw（8）On, micrometer caliper（3）Top
Pinnacle is being pivoted frame（5）At the pit centres point of tail portion.
Further, the micrometer caliper（3）Including an accurate micrometric screw（3-1）Be sleeved on micrometric screw
（3-1）On nut casing（3-3）And it is fastened on micrometric screw（3-1）On differential sleeve（3-4）, nut casing（3-3）
On have two rows of grooves, millimeter groove and half millimeter of groove；Nut casing（3-3）With micrometer caliper frame（3-2）By locking device
（3-5）It is fixed；Differential sleeve（3-4）50 are carved on circumference and waits lattices, when differential sleeve（3-4）When turning over one week, micrometer spiral shell
Bar（3-1）Move forward or back 0.5 millimeter, i.e. micrometric screw（3-1）On it is top move 0.5 millimeter, the distance of top movement
By nut casing（3-3）Upper millimeter scale and differential sleeve（3-4）The scale of first-class lattice is read, and measurement accuracy is 0.01 milli
Rice, micrometer caliper（3）Moveable maximum distance is 25.00 millimeters, and material is stainless steel.
Further, it is described to be pivoted frame（5）For semi-open-type column structure, 5 millimeters of inner circle radius, 3 millimeters of wall thickness,
120 millimeters of overall length；Away from being pivoted frame（5）10 millimeters of end face at have a pit, hole is 2 millimeters deep, and pit is used for and spiral shell
Revolve mircrometer gauge（3）Top cooperation；Away from being pivoted frame（5）10 millimeters of other end at have a hole, aperture is 3 millimeters, this
Hole and polished rod（8）On hole pin（4）Cooperation fastening, is pivoted frame（5）Material be steel plate.
Further, the fixed frame（6）120 millimeters long for rectangular parallelepiped structure, section is 16 millimeters wide, 3 millimeters thick,
Away from fixed frame（6）10 millimeters of end face at have a holes, aperture is 3 millimeters, which is used for fixed frame（6）It is fixed on sleeve
（7）On, fixed frame（6）Material is steel plate.
Further, the minute surface scale（9）It is to make graduation mark, back side double faced adhesive tape with red silk thread on plane mirror
It is fixed on the surface of determinand, fixed minute surface scale（9）When, it should be by minute surface scale（9）On first graduation mark and ranging
Laser pen on device（2）The laser point sent out overlaps.
A kind of measuring method of optical lever method rangefinder, includes the following steps：
Step 1：Open laser pen（2）, light vertical irradiation is allowed to the surface of determinand, by minute surface scale（9）It pastes
On determinand, and allow minute surface scale（9）Highest graduation mark and laser pen（2）The laser point sent out overlaps；
Step 2：Rotate micrometer caliper（3）, overlapped using the reflection path of light with travel path of incident light, leveling is pivoted
Frame（5）Height, and record micrometer caliper at this time（3）Reading n0；
Step 3：Continue rotating Vortex micrometer caliper（3）, elimination idle running is poor, makes laser pen（2）The laser sent out is in mirror
Face scale（9）Upper displacement distance D records micrometer caliper at this time（3）Reading n1；
Step 4：With vernier caliper measurement pin（4）To micrometer caliper（3）The distance between top l, is surveyed with graduated scale
Measure the distance D in step 3, micrometer caliper（3）The distance of top movement is d=n1-n0, measurement data is substituted into formula d/D=l/
In L, testing distance L is calculated.
Further, during measurement, micrometer caliper is rotated（3）On differential sleeve（3-4）, make micrometer caliper（3）'s
Top vertically to move, promotion is pivoted frame（5）Tail portion around pin（4）Rotation, is pivoted frame（5）Tail portion move
Dynamic distance is by micrometer caliper（3）It reads, at this time laser pen（2）The light sent out is around pin（4）Optical lever is formed, is impinged upon remote
Locate minute surface scale（9）On, write down at this time laser point in minute surface scale（9）On position, then survey can be calculated by formula d/D=l/L
Away from device to minute surface scale（9）The distance between L.
The advantages of the utility model and effect are as follows：
The utility model measuring device has, easy to assembly, easy to operate, clear principle, measurement it is reproducible, accurately
Degree is high, makes involved in measurement to the basic adjustment technologies of experiments such as zero-bit adjustment, elimination idle running difference and three kinds of length measuring instruments
With, it is very suitable for just contacting the student of experiment content, training of students grasps infrastest technical ability and laboratory apparatus application method,
The instrument is suitable for all kinds of Basic experimental teachings.
Description of the drawings
Fig. 1 is a kind of main structure diagram of optical lever method rangefinder of the utility model.
Fig. 2 is the main structure diagram of the utility model micrometer caliper.
In figure：1 is pedestal；2 be laser pen；3 be micrometer caliper；4 be pin；5 is are pivoted frame；6 is fix
Frame；7 be sleeve；8 be polished rod；9 be minute surface scale；3-1 is micrometric screw；3-2 is micrometer caliper frame；3-3 is nut casing；
3-4 is differential sleeve；3-5 is locking device.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, but the scope of protection of the utility model is not by this
Example is applied to be limited.
Embodiment
As shown in Figure 1, a kind of optical lever method rangefinder, is made of, structure is such as range unit and 9 two parts of minute surface scale
Under：Laser pen 2 be fixed on spring leaf be pivoted on frame 5, micrometer caliper 3 is welded on fixed frame 6, be pivoted frame 5
It being fixed on the polished rod 8 being connected with pedestal 1 by pin 4, fixed frame 6 is screwed on the polished rod 8 being connected with pedestal 1,
Place height can be adjusted along polished rod 8, and by fastened by screw, the top tail portion for withstanding on laser pen 2 of micrometer caliper 3, laser pen 2 is consolidated
Being scheduled on can be pivoted around what pin 4 rotated on frame 5, during measurement, the body of rod of 3 lower part of rotation micrometer caliper, then and spiral micrometer
The top of device 3 is vertically moved, and pushes 2 pivoting of laser pen, makes the distance that 2 tail portion of laser pen is moved that can be surveyed by spiral
Micro- device 3 is read, and the light that laser pen 2 is sent out at this time forms optical lever around pin 4, impinges upon on distant place minute surface scale 9, writes down at this time
Position of the laser point on minute surface scale 9 then can calculate range unit the distance between to minute surface scale 9 by formula.It is described
Minute surface scale 9 is to make graduation mark with colour silk thread on plane mirror, and the back side is fixed on double faced adhesive tape on the surface of determinand, mirror
First scale on face scale 9 should be contour with laser pen on range unit 2.
Range unit and minute surface graduated scale 9 in the instrument are respectively independent parts, and the range unit includes pedestal
1st, laser pen 2, micrometer caliper 3, pin 4, be pivoted frame 5 and micrometer caliper fixed frame 6, the laser pen 2 uses spring
Piece, which is fixed on, to be pivoted on frame 5, is pivoted frame 5 and is fixed on the polished rod 8 being connected with pedestal 1 by pin 4, micrometer caliper
3 are welded on fixed frame 6, and fixed frame 6 is screwed on the polished rod 8 being connected with pedestal 1, and place height can be along polished rod 8
Adjustment fastens, the top tail portion for withstanding on laser pen 2 of micrometer caliper 3 by screw；Connect between polished rod 8 and pedestal 1 by screw thread
It connects, during installation, first the polished rod 8 with sleeve 7 is screwed on pedestal 1, sleeve 7 is sleeved on polished rod 8, and it is solid with pin 4 to be pivoted frame 5
It is scheduled on polished rod 8, then laser pen 2 is put into the groove for being pivoted frame 5；Fixed frame 6 is fixed on upper and lower two screws
On sleeve 7, the position of sleeve 7 is adjusted to the top of micrometer caliper 3 and is in contact, and allow with being pivoted the tail portion pit of frame 5
Laser pen 2 and be pivoted 5 holding of frame level, with the position of trip bolt fixes sleeve 7.Laser pen 2 is opened, makes light vertical
The surface of determinand is irradiated to, minute surface scale 9 is pasted on determinand, and allows the highest graduation mark and laser of minute surface scale 9
The laser point that pen 2 is sent out overlaps.
The device utilizes feed rod rod principle, devises one and is surveyed by what range unit part and minute surface scale portion formed
Measure the laboratory apparatus of 2-5 meters of distances.Range unit part in the instrument includes laser pen and micrometer caliper, during measurement,
Rotation micrometer caliper moves up the top of mircrometer gauge, so as to which the laser pen contacted therewith tail portion be pushed to start around dead axle
It rotates, then laser pen and light form optical lever, by measuring the distance of the top movement of micrometer caliper, the arm of laser pen
The distance that long and laser point moves on minute surface scale then can measure out minute surface scale the distance between to range unit.
As shown in Fig. 2, micrometer caliper 3 includes an accurate micrometric screw 3-1 and the nut set being sleeved on screw rod 3-1
The pipe 3-3 and differential sleeve 3-4 being fastened on screw rod 3-1；There are two rows of grooves, millimeter groove and half milli on nut casing 3-3
Rice groove；Nut casing 3-3 is fastened on micrometer caliper frame 3-2；50 are carved on differential sleeve 3-4 circumference and waits lattices, when
When differential sleeve 3-4 turns over one week, micrometric screw 3-1 moves forward or back 0.5 millimeter, i.e. top movement on micrometric screw 3-1
0.5 millimeter, by locking device 3-5 standing screws positions during survey measurements, then on screw rod the distance of top movement by nut set
The scale of millimeter scale and the first-class lattices of differential sleeve 3-4 is read on pipe 3-3, and measurement accuracy is 0.01 millimeter, micrometer caliper 3
Moveable maximum distance is 25.00 millimeters, and material is stainless steel；Locking device 3-5 is spring washer and screw.
Claims (5)
1. a kind of optical lever method rangefinder, including range unit and minute surface scale（9）, it is characterised in that：Range unit and minute surface
Scale（9）It is respectively independent part, the range unit includes pedestal（1）, laser pen（2）, micrometer caliper（3）, pin
（4）, be pivoted frame（5）, fixed frame（6）, sleeve（7）And polished rod（8）, the polished rod（8）It is threadedly attached in pedestal（1）
On, laser pen（2）It is fixed on spring leaf and is pivoted frame（5）On, it is pivoted frame（5）One end pass through pin（4）It is fixed
In polished rod（8）On, micrometer caliper（3）It is welded on fixed frame（6）One end, fixed frame（6）The other end be screwed
Sleeve（7）On, sleeve（7）Height can be along polished rod（8）Adjustment, sleeve（7）Polished rod is fastened on by screw（8）On, spiral is surveyed
Micro- device（3）Top withstand on be pivoted frame（5）At the pit centres point of tail portion.
2. a kind of optical lever method rangefinder according to claim 1, it is characterised in that：The micrometer caliper（3）Including
A piece accurate micrometric screw（3-1）Be sleeved on micrometric screw（3-1）On nut casing（3-3）And it is fastened on micrometer spiral shell
Bar（3-1）On differential sleeve（3-4）, nut casing（3-3）On have two rows of grooves, millimeter groove and half millimeter of groove；Nut
Casing（3-3）With micrometer caliper frame（3-2）By locking device（3-5）It is fixed；Differential sleeve（3-4）50 etc. are carved on circumference
Lattice, when differential sleeve（3-4）When turning over one week, micrometric screw（3-1）Move forward or back 0.5 millimeter, i.e. micrometric screw（3-1）
On it is top move 0.5 millimeter, the distance of top movement is by nut casing（3-3）Upper millimeter scale and differential sleeve（3-4）
The scale of first-class lattice is read, and measurement accuracy is 0.01 millimeter, micrometer caliper（3）Moveable maximum distance is 25.00 millis
Rice, material is stainless steel.
3. a kind of optical lever method rangefinder according to claim 1, it is characterised in that：It is described to be pivoted frame（5）It is half
Open type column structure, 5 millimeters of inner circle radius, 3 millimeters of wall thickness, 120 millimeters of overall length；Away from being pivoted frame（5）End face
There is a pit at 10 millimeters, hole is 2 millimeters deep, and pit is used for and micrometer caliper（3）Top cooperation；Away from being pivoted frame（5）
10 millimeters of other end at have a hole, aperture is 3 millimeters, this hole and polished rod（8）On hole pin（4）Cooperation fastening, around
Axis swivel mount（5）Material be steel plate.
4. a kind of optical lever method rangefinder according to claim 1, it is characterised in that：The fixed frame（6）For cuboid
Structure, 120 millimeters long, section is 16 millimeters wide, 3 millimeters thick, away from fixed frame（6）10 millimeters of end face at have holes, aperture
It it is 3 millimeters, which is used for fixed frame（6）It is fixed on sleeve（7）On, fixed frame（6）Material is steel plate.
5. a kind of optical lever method rangefinder according to claim 1, it is characterised in that：The minute surface scale（9）It is flat
Graduation mark is made with red silk thread on the mirror of face, the back side is fixed on double faced adhesive tape on the surface of determinand, fixed minute surface scale（9）
When, it should be by minute surface scale（9）On first graduation mark and range unit on laser pen（2）The laser point sent out overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721756727.8U CN207600440U (en) | 2017-12-15 | 2017-12-15 | A kind of optical lever method rangefinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721756727.8U CN207600440U (en) | 2017-12-15 | 2017-12-15 | A kind of optical lever method rangefinder |
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| Publication Number | Publication Date |
|---|---|
| CN207600440U true CN207600440U (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721756727.8U Expired - Fee Related CN207600440U (en) | 2017-12-15 | 2017-12-15 | A kind of optical lever method rangefinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860355A (en) * | 2017-12-15 | 2018-03-30 | 沈阳建筑大学 | A kind of optical lever method rangefinder and its measuring method |
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2017
- 2017-12-15 CN CN201721756727.8U patent/CN207600440U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860355A (en) * | 2017-12-15 | 2018-03-30 | 沈阳建筑大学 | A kind of optical lever method rangefinder and its measuring method |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180710 Termination date: 20181215 |