CN107764854A - A kind of Temperature Control Type linear expansion coefficient measuring apparatus - Google Patents
A kind of Temperature Control Type linear expansion coefficient measuring apparatus Download PDFInfo
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- CN107764854A CN107764854A CN201711007658.5A CN201711007658A CN107764854A CN 107764854 A CN107764854 A CN 107764854A CN 201711007658 A CN201711007658 A CN 201711007658A CN 107764854 A CN107764854 A CN 107764854A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/16—Investigating or analyzing materials by the use of thermal means by investigating thermal coefficient of expansion
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Abstract
The invention discloses a kind of Temperature Control Type linear expansion coefficient measuring apparatus,Including base,First support bar,Optical lever system,Radiate outer barrel,Heating plate,Reservoir chamber and operating desk,Operating desk includes display,Processor,Drive device and storage device,Storage device is used to store measurement data,Display is used to show measurement data,First support bar is connected with base and takes thing to press from both sides including electronic,It is electronic to take thing to press from both sides for gripping testee,Reservoir chamber is positioned at radiating outer barrel,Including the first temperature sensor,First temperature sensor is used for the temperature for detecting water storage indoor liquid,Heating plate is located between reservoir chamber and radiating outer barrel,For heating the liquid in reservoir chamber,Optical lever system includes second support bar,Lever,Level crossing,Generating laser and scale,Second support bar is connected with base,One end of lever is connected with second support bar,The upper surface of the other end and testee,Level crossing minute surface and generating laser and scale are mutually contradictory.
Description
Technical field
The present invention relates to thermal expansion metal field of measuring technique, and in particular to a kind of Temperature Control Type linear expansion coefficient measurement is set
It is standby.
Background technology
" expanding with heat and contract with cold " is the characteristic that many objects all have, be due to interior of articles molecular thermalmotion aggravation or weaken from
And make material molecule be averaged it is arduous become big or diminish caused by, although thermal expansion is little, very big stress can be produced.Cause
This, will take into full account during engineering design, machine-building and material processing etc..
Ordinary circumstance, the Expansion Regularity of solid in all directions is identical, therefore can be with solid in one direction
Line Expansion Regularity characterizes its volume expansion.Existing measurement and control circuit to linear expansion coefficient all exists larger
Problem, mainly surveyed by mercurial thermometer and length-measured telescope come the displacement when temperature to metal tube and heating during measurement
Amount, and control circuit mainly realizes the speed of heating by adjusting the angle of flow of IGCT, temperature can not be caused constant
A certain temperature, when measuring, experimental data scope is narrow, while when being heated using electrical heating method, temperature also be present
Degree can not control, and the temperature that mercurial thermometer is read has very big error and measurement range narrow, passes through telescope
It can not be read simultaneously with the reading of thermometer, measurement data can not carry out a series of defects such as effective preservation.
The content of the invention
Goal of the invention：To solve problem present in background technology, the embodiments of the invention provide a kind of Temperature Control Type metal
Linear expansion coefficient measuring apparatus.
Technical scheme：A kind of Temperature Control Type linear expansion coefficient measuring apparatus, including base, first support bar, feed rod leverage
System, radiating outer barrel, heating plate, reservoir chamber and operating desk, the operating desk include display, processor, drive device and
Storage device, the processor are connected with the drive device, the storage device and the display respectively, the storage
Device is used to store measurement data, and the display is used to show the measurement data and result of calculation, first support
Bar is connected with the base, the first support bar include it is electronic take thing to press from both sides, it is described it is electronic take thing folder with the drive device connect
Connect, for gripping testee, the testee is placed in the reservoir chamber and heated, the reservoir chamber is located at the radiating
Outer barrel, including the first temperature sensor, first temperature sensor is connected with the processor, for detecting the storage
The temperature of water indoor liquid simultaneously sends it to the processor, and the heating plate is located at the reservoir chamber and the radiating outer barrel
Between, the heating plate is connected with the drive device, for heating the liquid in the reservoir chamber, by heating the liquid
The indirectly heat to the testee is realized, the optical lever system includes second support bar, lever, level crossing, laser hair
Emitter, telescope and scale, the second support bar are connected with the base, one end of the lever and the described second support
Bar is connected, and the upper surface of the other end and testee, the level crossing is connected with the lever, the minute surface of the level crossing
Mutually contradictory with the generating laser and the scale, the generating laser is connected with the drive device, for
The level crossing emission level laser, the scale are used for the laser for receiving the level crossing reflection, and the processor passes through institute
The change for stating scale high scale calculates the deformation quantity after the testee heating, and the telescope is used in distant surveillance institute
State the scale of scale.
As a kind of preferred embodiment of the present invention, the operating desk also includes heating controller, the heating controller and
The processor connection, for controlling the output temperature of the heating plate.
As a kind of preferred embodiment of the present invention, the radiating outer barrel bottom is also equipped with heating plate, if being internally provided with
Dry heat-conducting metal silk, the heat-conducting metal silk are connected with the heating plate.
As a kind of preferred embodiment of the present invention, the liquid in the reservoir chamber includes distilled water or methyl-silicone oil or sand.
As a kind of preferred embodiment of the present invention, the lever is arranged to L-type, including vertical portion and horizontal component,
The vertical portion is vertical with horizontal component holding.
As a kind of preferred embodiment of the present invention, the lever is fixedly connected with the second support bar, and junction is set
There is rotatable connection axle, the lever can be rotated by the rotatable connection axle in vertical direction.
As a kind of preferred embodiment of the present invention, the first support bar includes first laser rangefinder and second laser
Rangefinder, the first laser rangefinder and the second laser rangefinder are connected with the processor respectively.
As a kind of preferred embodiment of the present invention, the horizontal component of the lever offers two slotted eyes, described two grooves
Hole is corresponding with the first laser rangefinder and the second laser rangefinder respectively, when the first laser rangefinder and
The measured value of the second laser rangefinder is heated again when identical.
As a kind of preferred embodiment of the present invention, the first support bar also includes line slideway and electronic sliding block, institute
Line slideway is stated to be located above the reservoir chamber, the electronic sliding block with it is described it is electronic take thing folder to connect, by the drive device
Driving, for controlling the adjustable height of the testee.
As a kind of preferred embodiment of the present invention, it is described it is electronic take thing folder to include second temperature sensor, described second is warm
Degree sensor positioned at it is described it is electronic take thing folder inner side, be connected with the processor, for detecting the temperature of the testee simultaneously
Send it to the processor.
The present invention realizes following beneficial effect：
Temperature Control Type linear expansion coefficient measuring apparatus provided by the invention has been abandoned traditionally directly using heating equipment to tested
The mode that object is heated, indirectly heat, the side of heating water bath are carried out to the testee using the method for heating water bath
Formula can be heated evenly the testee, it is not easy to change the metallic character of testee, and the speed ratio heated is straight
Connect the slow of heating, it is easier to observe the change of scale label, reduce experimental error；In addition to being heated using metallic plate, dissipating
Hot outer barrel is provided with some heat-conducting metal silks, accelerates the temperature that firing rate also reduces diverse location inside reservoir chamber
Difference；Bath temperature highest only can reach 100 degrees Celsius, if experiment condition requires that temperature is higher, then it is higher that temperature may be selected
Oil bath even sand-bath substitutes water-bath；The temperature that processor is sent according to the first temperature sensor and second temperature sensor
To adjust the temperature of water-bath.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and be used in specification to explain the principle of the disclosure together.Fig. 1 is a kind of Temperature Control Type linear expansion coefficient provided by the invention
Measuring apparatus structural representation；
Fig. 2 is operating desk structural representation provided by the invention；
Fig. 3 is generating laser reflected light path schematic diagram provided by the invention；
Fig. 4 is radiating outer tube structure schematic diagram provided by the invention；
Fig. 5 is the top view of radiating outer barrel provided by the invention；
Fig. 6 is lever construction schematic diagram provided by the invention；
Fig. 7 is linear expansion coefficient Computing Principle schematic diagram provided by the invention；
Fig. 8 electronic takes thing clamping structure schematic diagram to be provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
Embodiment one
As shown in Figure 1, 2, 3, a kind of Temperature Control Type linear expansion coefficient measuring apparatus, including base 1, first support bar 2, optical lever
System, radiating outer barrel 3, heating plate 4, reservoir chamber 5 and operating desk 6, the operating desk 6 include display 7, processor 8, driving
Device 9 and storage device 10, the processor 8 respectively with the drive device 9, the storage device 10 and the display
Device 7 connects, and the storage device 10 is used to store measurement data, the display 7 by show the measurement data and based on
Result is calculated, the first support bar 2 is connected with the base 1, and the first support bar 2 takes thing to press from both sides 11 including electronic, the electricity
It is dynamic to take thing folder 11 to be connected with the drive device 9, for gripping testee, the testee is placed in the reservoir chamber 5
Middle heating, the reservoir chamber 5 is inside the radiating outer barrel 3, including the first temperature sensor 12, first TEMP
Device 12 is connected with the processor 8, for detecting the temperature of liquid in the reservoir chamber 5 and sending it to the processor 8,
The heating plate 4 is located between the reservoir chamber 5 and the radiating outer barrel 3, and the heating plate 4 is connected with the drive device 9,
It is described by heating indirectly heat of the liquid realization to the testee for heating the liquid in the reservoir chamber 5
Optical lever system includes second support bar 13, lever 14, level crossing 15, generating laser 16, telescope 17 and scale 18, institute
Second support bar 13 is stated to be connected with the base 1, one end of the lever 14 is connected with the second support bar 13, the other end with
The upper surface of testee, the level crossing 15 are connected with the lever 14, and the minute surface of the level crossing 15 swashs with described
Optical transmitting set 16 and the scale 18 are mutually contradictory, and the generating laser 16 is connected with the drive device 9, for institute
The emission level laser of level crossing 15 is stated, the scale 18 is used to receive the laser that the level crossing 15 reflects, and the processor 8 is logical
The change for crossing the high scale of scale 18 calculates the deformation quantity after the testee heating, and the telescope 17 is used in long distance
From the scale for observing the scale 18.
The operating desk 6 also includes heating controller 19, and the heating controller 19 is connected with the processor 8, is used for
Control the output temperature of the heating plate 4.
Radiating outer barrel 3 bottom is also equipped with heating plate 4, is internally provided with some heat-conducting metal silks 20, the heat conduction
Wire 20 is connected with the heating plate 4.
Liquid in the reservoir chamber 5 includes distilled water or methyl-silicone oil or sand.
The lever 14 is fixedly connected with the second support bar 13, and junction is provided with rotatable connection axle 21, the thick stick
Bar 14 can be rotated by the rotatable connection axle 21 in vertical direction.
Specifically, measuring apparatus provided by the invention includes base 1, first support bar 2, optical lever system, radiating outer barrel
3rd, heating plate 4, reservoir chamber 5 and operating desk 6, the operating desk 6 include display 7, processor 8, drive device 9, storage dress
10 and heating controller 19 are put, user changes the heating-up temperature of the heating plate 4 by adjusting the heating controller 19,
The storage device 10 includes several memory cell, and each memory cell is responsible for storing one group of experimental data, the display 7
Including touch-screen, user is counted by the input measurement data of display 7, the processor 8 according to the measurement data
Calculate, the base 1 is horizontal positioned, in rounded shape, and the first support bar 2 is vertically arranged, its bottom and the side of the base 1
Connection, for the radiating outer barrel 3 positioned at the top of base 1, it is built-in with the reservoir chamber 5, the radiating outer barrel 3 and the storage
Hydroecium 5 is cylindrical structural, and both are highly identical, but the internal diameter of the reservoir chamber 5 is less than the interior of the radiating outer barrel 3
Footpath, therefore, the heating plate 4 is provided between the radiating outer barrel 3 and the reservoir chamber 5, wherein, the radiating outer barrel 3
Bottom is also equipped with heating plate 4, and the heating plate 4 of barrel is heated with the heating plate 4 of bottom by synchronous drive of the drive device 9,
The heating plate 4 heats from side and bottom surface to the reservoir chamber 5, in order to improve the efficiency of heating surface and heating effect,
The heating effect make it that heating medium is heated evenly in the reservoir chamber 5, so that the testee is heated evenly,
Therefore, some heat-conducting metal silks 20 are had additional in the radiating outer barrel 3, as shown in Figure 4,5, the heat-conducting metal silk 20 runs through
The reservoir chamber 5 and it is evenly arranged, the space of reserved testee insertion, the heat-conducting metal silk among the reservoir chamber 5
20 are connected with the heating plate 4, and the temperature that the heat-conducting metal silk 20 conducts the heating plate 4 is entered inside the reservoir chamber 5
Row heating, the radiating outer barrel 3 select heat-barrier material, slow down heat in the reservoir chamber 5 and distribute, can add in the reservoir chamber 5
Add distilled water or methyl-silicone oil or husky as heating medium, different heating media, water-bath are selected according to different experiment demands
The temperature range of heating is between 0 to 100 degrees Celsius, and the temperature range of oil bath heating is between 100 to 260 degrees Celsius, sand-bath
For the temperature range of heating between 400 to 600 degrees Celsius, in general tests demand between 0 to 100 degrees Celsius, therefore, this hair
Bright acquiescence is from distilled water as heating medium.In order to reduce the error of measurement data, the top Ying Yushui of the testee
The liquid level of bath is maintained at sustained height or the slightly above liquid level of water-bath.
On the base 1, the opposite of the first support bar 2 is provided with second support bar 13, described second
The length of strut 13 is less than the length of the first support bar 2, wherein, the bottom of the second support bar 13 and the base 1
It is fixedly connected, the top of the second support bar 13 is provided with rotatable connection axle 21, and lever 14 passes through the rotatable connection axle 21
It is connected with the second support bar 13, the other end of the lever 14 and the upper surface of testee, in the room in laboratory
Under temperature, the both ends of the lever 14 are maintained at sustained height, after the testee expanded by heating, and on the testee
One end stress of lever 14 of surface contact is jacked up upwards, meanwhile, the other end of the lever 14 with described because be rotatably connected
Axle 21 connects, stress rotation, in addition, before the experiments were performed, the rotatable connection axle 21 need to be lubricated using lubricating oil, be subtracted
Few frictional resistance between the lever 14 and the axle 21 that is rotatably connected, reduce the deformation quantity error of the testee.
Embodiment two
As a shown in Figure 6, the lever 14 is arranged to L-type, including vertical portion and horizontal component, the vertical portion and institute
State horizontal component and keep vertical.
The first support bar 2 includes first laser rangefinder 22 and second laser rangefinder 23, the first laser
Rangefinder 22 and the second laser rangefinder 23 are connected with the processor 8 respectively.
The horizontal component of the lever 14 offers two slotted eyes 24, described two slotted eyes 24 respectively with the first laser
Rangefinder 22 and the correspondence of second laser rangefinder 23, when the first laser rangefinder 22 and the second laser are surveyed
The measured value of distance meter 23 is heated again when identical.
The first support bar 2 also includes line slideway 25 and electronic sliding block 26, and the line slideway 25 is positioned at described
The top of reservoir chamber 5, the electronic sliding block 26 electronic take thing to press from both sides 11 to be connected, driven by the drive device 9, for controlling with described
The adjustable height of the testee.
Specifically, the present invention calculates the deformation quantity after testee is heated using optical lever measuring method, and the present invention provides
Lever 14 in addition to the horizontal component being connected with the testee and the second support bar 13, an in addition to vertical portion
Point, the vertical portion is vertical with horizontal component holding, and two slotted eyes 24, the slotted eye 24 are opened up in the horizontal component
Depth it is identical, the first support bar 2 includes first laser rangefinder 22 and second laser rangefinder 23, and described first swashs
Optar 22 and the second laser rangefinder 23 are respectively positioned at the surface of two slotted eyes 24, the first support bar 2
Also include line slideway 25 and electronic sliding block 26, the electronic sliding block 26 with it is described it is electronic take thing folder 11 to be connected, it is described electronic
After taking thing folder 11 to grip testee, the processor 8 judges that the first laser rangefinder 22 is surveyed with the second laser
Whether the measured value that distance meter 23 is sent is identical, if so, then without adjustment, if it is not, the processor 8 determines whether described first
Whether the measured value that laser range finder 22 is sent is less than the measured value that the second laser rangefinder 23 is sent, if so, the place
To manage device 8 and export the first movable signal to the drive device 9, the drive device 9 drives the electronic sliding block 26 to move down,
If it is not, the processor 8 exports the second movable signal to the drive device 9, the drive device 9 drives the electronic sliding block
26 move up, in the electronic moving process of sliding block 26, when the processor 8 judge the first laser transmitter 16 with
When the measured value that the second laser transmitter 16 is sent is identical, the processor 8 exports to the drive device 9 stops letter
Number, the drive device 9 drives the electronic sliding block 26 to stop movement.
The vertical portion is provided with a level crossing 15, the minute surface of the level crossing 15 and the generating laser 16 with
And the scale 18 is mutually contradictory, keep the generating laser 16 and the level crossing 15 substantially in same level height, its
In, the 18 graduated one side of scale opposes with the level crossing 15, and the generating laser 16 is located at the scale 18
Rear, an aperture is opened up at a certain scale of the scale 18, it is assumed that scale is n at this, and the generating laser 16 passes through
The aperture launches laser to the level crossing 15, and the laser returns the scale 18 after the level crossing 15 transmitting, if
That equipment installation is correct, laser can be reflected at the aperture, if laser reflection at other scales of the scale 18, then
Show the minute surface of the level crossing 15 does not have holding vertical, it is necessary to adjust both with the laser that the generating laser 16 is launched
Position.
As shown in Fig. 7, after the testee expanded by heating, laser reflection position changes, and is read by telescope 17
The scale gone out at laser reflection is n1, then the scale changes delta n of the scale 18 is Shu n-n1Shu, now the level crossing 15 rotate
Angle be θ, the deformation quantity of the testee is Δ L, can be obtained, tan θ=Δ L/s, tan2 θ=Δ n/d, wherein, s is lever
Horizontal range of the toe to rotatable connection axle 21 after 14；D is the horizontal range that level crossing 15 arrives scale 18, because the measured object
The deformation quantity very little of body, the θ are substantially equal to 0, can be approximately considered θ=Δ L/s, 2 θ=Shu n-n1Shu/d, two formula cancellations can obtain Δ
L=（s·Δn）/（2·d）.Linear expansion coefficient calculation formula is α=Δ L/（L·Δt）, wherein, L is that the original of the testee is long
Degree, Δ t are the temperature change of the testee, and Δ L is deformation quantity of the testee under Δ t, and Δ t can be by the second temperature
Degree sensor 27 measures.
Embodiment three
As shown in figure 8, it is described it is electronic take thing folder 11 to include second temperature sensor 27, the second temperature sensor 27 is located at institute
State it is electronic take thing folder 11 inner side, be connected with the processor 8, for detecting the temperature of the testee and sending it to institute
State processor 8.
Specifically, the present invention is heated from the mode of heating water bath to testee, in general heating water bath
Experiment in, often only measure water-bath or the testee temperature of one of them be used as experimental data, the reservoir chamber 5 includes
First temperature sensor 12, first temperature sensor 12 are used to detecting the temperature of water-bath, described electronic to take thing folder 11 to include
Second temperature sensor 27, the second temperature sensor 27 are used for the temperature for detecting the testee,
, it is necessary to measure temperature of the testee in the different heating period in the experiment of linear expansion coefficient measurement, and in institute
The scale of scale 18 when stating temperature, in heating water bath, testee be extremely difficult to bath temperature it is synchronous, need to both distinguish
Measurement temperature, before bath temperature reaches final state temperature, the temperature ＞ bath temperature ＞ testee temperature of heating plate 4 is described
The temperature that second temperature sensor 27 is sent is the temperature of the testee, when the temperature that first temperature sensor 12 is sent
When degree reaches final state temperature, the processor 8 exports to the drive device 9 stops heating signal, and the drive device 9 drives
The heating plate 4 is stopped, and the testee, to final state temperature, can reduce the measured object body temperature using waste-heat
The amplitude of change is spent, beneficial to the stabilization of its metallic character.
The above embodiments merely illustrate the technical concept and features of the present invention, and the purpose is to allow be familiar with the skill of the technical field
Art personnel can understand present disclosure and implement according to this, can not be limited the scope of the invention with this.All bases
Equivalent changes or modifications made by spirit of the invention, it should all be included within the scope of the present invention.
Claims (10)
1. a kind of Temperature Control Type linear expansion coefficient measuring apparatus, including base（1）, first support bar（2）, optical lever system, dissipate
Hot outer barrel（3）, heating plate（4）, reservoir chamber（5）And operating desk（6）, it is characterised in that the operating desk（6）Including display
（7）, processor（8）, drive device（9）And storage device（10）, the processor（8）Respectively with the drive device（9）、
The storage device（10）And the display（7）Connection, the storage device（10）It is described aobvious for storing measurement data
Show device（7）For showing the measurement data and result of calculation, the first support bar（2）With the base（1）Connection, institute
State first support bar（2）Thing is taken to press from both sides including electronic（11）, it is described electronic to take thing to press from both sides（11）With the drive device（9）Connection, use
In gripping testee, the testee is placed in the reservoir chamber（5）Middle heating, the reservoir chamber（5）Dissipated positioned at described
Hot outer barrel（3）Inside, including the first temperature sensor（12）, first temperature sensor（12）With the processor（8）Even
Connect, for detecting the reservoir chamber（5）The temperature of interior liquid simultaneously sends it to the processor（8）, the heating plate（4）Position
In the reservoir chamber（5）With the radiating outer barrel（3）Between, the heating plate（4）With the drive device（9）Connection, is used for
Heat the reservoir chamber（5）Interior liquid, by heating the liquid realization to the indirectly heat of the testee, the light
Lever system includes second support bar（13）, lever（14）, level crossing（15）, generating laser（16）, telescope（17）And
Scale（18）, the second support bar（13）With the base（1）Connection, the lever（14）One end with described second support
Bar（13）The upper surface of connection, the other end and testee, the level crossing（15）With the lever（14）Connection, it is described
Level crossing（15）Minute surface and the generating laser（16）And the scale（18）It is mutually contradictory, the generating laser
（16）With the drive device（9）Connection, for the level crossing（15）Emission level laser, the scale（18）For connecing
Receive the level crossing（15）The laser of reflection, the processor（8）Pass through the scale（18）Described in the change of high scale calculates
Deformation quantity after testee heating, the telescope（17）For in scale described in distant surveillance（18）Scale.
A kind of 2. Temperature Control Type linear expansion coefficient measuring apparatus according to claim 1, it is characterised in that：The operating desk
（6）Also include heating controller（19）, the heating controller（19）With the processor（8）Connection, for controlling described add
Hot plate（4）Output temperature.
A kind of 3. Temperature Control Type linear expansion coefficient measuring apparatus according to claim 1, it is characterised in that：Outside the radiating
Cylinder（3）Bottom is also equipped with heating plate（4）, it is internally provided with some heat-conducting metal silks（20）, the heat-conducting metal silk（20）With
The heating plate（4）Connection.
A kind of 4. Temperature Control Type linear expansion coefficient measuring apparatus according to claim 1, it is characterised in that：The reservoir chamber
（5）Interior liquid includes distilled water or methyl-silicone oil or sand.
A kind of 5. Temperature Control Type linear expansion coefficient measuring apparatus according to claim 1, it is characterised in that：The lever
（14）L-type, including vertical portion and horizontal component are arranged to, the vertical portion is vertical with horizontal component holding.
A kind of 6. Temperature Control Type linear expansion coefficient measuring apparatus according to claim 1, it is characterised in that：The lever
（14）With the second support bar（13）It is fixedly connected, junction is provided with rotatable connection axle（21）, the lever（14）It can lead to
Cross the rotatable connection axle（21）Rotated in vertical direction.
A kind of 7. Temperature Control Type linear expansion coefficient measuring apparatus according to claim 1, it is characterised in that：Described first
Strut（2）Including first laser rangefinder（22）And second laser rangefinder（23）, the first laser rangefinder（22）With
And the second laser rangefinder（23）Respectively with the processor（8）Connection.
A kind of 8. Temperature Control Type linear expansion coefficient measuring apparatus according to claim 5 or 7, it is characterised in that：The thick stick
Bar（14）Horizontal component offer two slotted eyes（24）, described two slotted eyes（24）Respectively with the first laser rangefinder
（22）And the second laser rangefinder（23）It is corresponding, when the first laser rangefinder（22）And the second laser is surveyed
Distance meter（23）Measured value it is identical when heated again.
A kind of 9. Temperature Control Type linear expansion coefficient measuring apparatus according to claim 1, it is characterised in that：Described first
Strut（2）Also include line slideway（25）And electronic sliding block（26）, the line slideway（25）Positioned at the reservoir chamber（5）On
Side, the electronic sliding block（26）Electronic thing is taken to press from both sides with described（11）Connection, by the drive device（9）Driving, for controlling
State the adjustable height of testee.
A kind of 10. Temperature Control Type linear expansion coefficient measuring apparatus according to claim 1, it is characterised in that：It is described electronic
Thing is taken to press from both sides（11）Including second temperature sensor（27）, the second temperature sensor（27）Electronic thing is taken to press from both sides positioned at described（11）
Inner side, with the processor（8）Connection, for detecting the temperature of the testee and sending it to the processor（8）.
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| CN201711007658.5A CN107764854A (en) | 2017-10-25 | 2017-10-25 | A kind of Temperature Control Type linear expansion coefficient measuring apparatus |
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| CN201711007658.5A CN107764854A (en) | 2017-10-25 | 2017-10-25 | A kind of Temperature Control Type linear expansion coefficient measuring apparatus |
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Application publication date: 20180306 |