CN207662336U - A kind of customized highly sensitive strain-stress curve test device of automation - Google Patents
A kind of customized highly sensitive strain-stress curve test device of automation Download PDFInfo
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- CN207662336U CN207662336U CN201721830051.2U CN201721830051U CN207662336U CN 207662336 U CN207662336 U CN 207662336U CN 201721830051 U CN201721830051 U CN 201721830051U CN 207662336 U CN207662336 U CN 207662336U
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- detecting device
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a kind of customized highly sensitive strain stress curve testing device of automation, belongs to technical field of experiment equipment.The strain stress curve testing device includes mechanical driving device, pressure-detecting device and data acquisition processing system, object to be tested is placed on pressure-detecting device, the movable end of mechanical driving device is contacted with object to be tested, and mechanical driving device is used to control the compression degree of object to be tested and compresses the speed of object to be tested;Pressure-detecting device is used to detect the pressure information of test process, mechanical driving device and pressure-detecting device are connected with data collecting system, realize synchronous acquisition and the transmission of data, data collecting system is at regular intervals, the compression displacement of the object to be tested of acquisition and pressure information are handled, and drawing image, export result.The required sample size of the utility model is few, and measuring accuracy is high, is easy to customize, and helps to timely feedback, instructs to improve synthesis and preparation process, to shorten research cycle.
Description
Technical field
The present utility model belongs to technical field of experiment equipment, the customized high sensitivity of especially a kind of automation
Strain-stress curve test device.It allows user to need to customize different measurement ranges according to experiment, measuring speed, measure spirit
The instrument of sensitivity.It can more importantly assemble rapidly, it is of low cost, and test sample amount needed for this method is few, contributes to
It timely feedbacks, instruct to improve synthesis and preparation process, to shorten research cycle.
Background technology
Instrument and equipment plays a crucial role in scientific research, in recent years, scientific and technical rapid development none be not
Along with the tremendous improvement of high-grade, precision and advanced advanced instrument, especially in Material Field, scanning electron microscope and transmission electron microscope
Great development and extensive use so that many novel nano-materials be able to invention, find and its structure is characterized.And it is right
In the mechanical performance no less important of material macroscopic view, wherein answer force-strain curve can in detail painting material compression, draw
It stretches, mechanical performances, the mechanics performance determining for material such as elasticity are indispensable.Novel charcoal material macroscopic body such as graphene
Aeroge, assembly, Carbon foam etc. have the special performances such as ultralight, superlastic, superpower, and mechanics performance determining is particularly important,
Correlative study result is delivered on ACS Nano, the international well-known periodical such as Chemistry of Materials.It has reported
Most of experiments used in mechanical property tester device be " universal testing machine ", but the instrument is larger mainly for the scale of construction
The test of metal and plastic or other material, for for example novel graphene assembly of research hotspot in recent years, carbon foams and other bubbles
For foam material and it is not suitable for.Moreover, universal testing machine is bulky, very heavy, expensive, many scientific research institutions and height
School is not equipped with the instrument so that can not timely be measured the mechanical performance of synthesized material, be retouched in scientific research
It paints and judges, seriously affect the progress of scientific research.
Utility model content
To solve the above-mentioned problems, the present utility model provides a kind of customized high sensitivity of automation and answers
Change-stress curve test device allows to need to customize different measurement ranges, measuring speed and measurement sensitivity according to experiment
Instrument.It can more importantly assemble rapidly, it is of low cost, to promote the smooth expansion of scientific experiment, accelerate progress.
The technical solution of the utility model:
A kind of customized highly sensitive strain-stress curve test device of automation, including mechanical driving device, pressure
Force checking device and data collecting system;Object to be tested is placed on pressure-detecting device, the movable end of mechanical driving device with wait for
Tester contacts, and mechanical driving device is used to control the compression degree of object to be tested and compresses the speed of object to be tested;Machinery passes
Dynamic device and pressure-detecting device cooperation, pressure-detecting device are used to detect the pressure information of test process, mechanical driving device
Be connected with data collecting system with pressure-detecting device, realize synchronous acquisition and the transmission of data, data collecting system every
Certain time handles the compression displacement of the object to be tested of acquisition and pressure information, and drawing image, exports result.
The mechanical driving device is dipping plated film lifting instrument, liquid injection pump or axis lead screw motor.
The pressure-detecting device is electronic scale or pressure sensor.
The data collecting system is computer or microcontroller.
Between the pressure-detecting device and data acquisition device with RS232 interface line, RS232 turn USB lines or
RS232 turns the connection of PCI-E cards.
The object to be tested includes graphene assembly, graphene nanobelt assembly, carbon foams or foam, various charcoals
The materials such as aeroge, Silica hydrogel and various flexible materials and senser element.
The beneficial effects of the utility model:A kind of customized highly sensitive strain of automation-stress curve test dress
It sets, user is allowed to be needed to customize the instrument of different measurement ranges, measuring speed, measurement sensitivity according to experiment, it is prior
It is to assemble rapidly, it is of low cost, and test sample amount needed for this method is few, helps to timely feedback, instructs to improve and close
At with preparation process, to shorten research cycle.
Description of the drawings
Fig. 1 is the structure chart of utility model device.
Fig. 2 is the strain-stress for measuring the melamine foamed plastic drawn using utility model device and compressing different proportion
Curve.
Fig. 3 is the strain-stress song for measuring the polyurethane foam drawn using utility model device and compressing different proportion
Line.
Fig. 4 is the schematic diagram of utility model device.
In figure:1 mechanical driving device;2 pressure-detecting devices;3 data collecting systems.
Specific implementation mode
It elaborates below in conjunction with the accompanying drawings to the utility model technology.Obviously, described embodiment is only this reality
With novel a part of the embodiment, rather than whole embodiments.Based on the embodiments of the present invention, this field routine experimentation
The every other embodiment that member or postgraduate are obtained without making creative work belongs to the utility model guarantor
The range of shield.
As Figure 1 and Figure 4, the strain of the utility model-stress curve test device includes mechanical driving device 1, pressure
Detection device 2 and data collecting system 3, wherein:
According to requirement of experiment and design, setting dipping plated film lifting instrument control compression material carries out Mechanical Moving, control pressure
Range, speed and the cycle number of turns of compression material;
The pressure information of test process is detected by high-precision electronic scale;
Computer at regular intervals, the displacement of acquisition and pressure information is handled, and drawing image, output knot
Fruit.
Melamine foamed plastic is cut into 2.5cm × 3cm cylinders, and compression speed 0.5mm/s takes a number every 0.5 s
According to the strain-stress curve for compressing different proportion is as shown in Figure 2.Since sample point is more, data rich and accurate, curve light
It is sliding.By corresponding load-deformation curve it is found that the elasticity of melamine foamed plastic is preferable, when being compressed to 80%, pressure is reachable
15kPa or more, and compression is smaller with rebound curve gap, shows that melamine foamed plastic resilience is preferable.But curve table simultaneously
Bright with continuous compression, under identical compression degree, pressure continuously decreases, and shows with compression, inside melamine foamed plastic
Gradually cave in.
Polyurethane foam is cut into 2.5cm × 2.5cm cylinders, and compression speed 0.1mm/s takes a data every 1s,
Strain-the stress curve for compressing different proportion is as shown in Figure 3.Since sample point is more, data rich and accurate, line smoothing.
By corresponding load-deformation curve it is found that the elasticity of polyurethane foam is poor, when being compressed to 80%, pressure is 10kPa or so,
And compression is larger with rebound curve gap, shows that polyurethane foam resilience is poor.But curve shows with continuous pressure simultaneously
Contracting, under identical compression degree, pressure continuously decreases, and shows that, with compression, polyurethane foam inside gradually caves in.
Claims (10)
1. a kind of customized highly sensitive strain-stress curve test device of automation, which is characterized in that the automation
Customized high sensitivity strain-stress curve test device includes mechanical driving device (1), pressure-detecting device (2) and number
According to acquisition system (3);Object to be tested is placed on pressure-detecting device (2), movable end and the object to be tested of mechanical driving device (1)
Contact, mechanical driving device (1) are used to control the compression degree of object to be tested and compress the speed of object to be tested;Machine driving fills
(1) and pressure-detecting device (2) cooperation are set, pressure-detecting device (2) is used to detect the pressure information of test process, machine driving
Device (1) and pressure-detecting device (2) are connected with data collecting system (3), realize synchronous acquisition and the transmission of data, data
Acquisition system (3) at regular intervals, the compression displacement of the object to be tested of acquisition and pressure information is handled, and draw figure
Picture exports result.
2. a kind of customized highly sensitive strain-stress curve test device of automation according to claim 1,
It is characterized in that, the mechanical driving device (1) is dipping plated film lifting instrument, liquid injection pump or axis lead screw motor.
3. a kind of customized highly sensitive strain of automation according to claim 1 or 2-stress curve test dress
It sets, which is characterized in that the pressure-detecting device (2) is electronic scale or pressure sensor.
4. a kind of customized highly sensitive strain of automation according to claim 1 or 2-stress curve test dress
It sets, which is characterized in that the data collecting system (3) is computer or microcontroller.
5. a kind of customized highly sensitive strain-stress curve test device of automation according to claim 3,
It is characterized in that, the data collecting system (3) is computer or microcontroller.
6. a kind of customized highly sensitive strain of automation according to claim 1,2 or 5-stress curve test dress
It sets, which is characterized in that turned with RS232 interface line, RS232 between the pressure-detecting device (2) and data collecting system (3)
USB line or RS232 turn the connection of PCI-E cards.
7. a kind of customized highly sensitive strain-stress curve test device of automation according to claim 3,
It is characterized in that, turns USB with RS232 interface lines, RS232 between the pressure-detecting device (2) and data collecting system (3)
Line or RS232 turn the connection of PCI-E cards.
8. a kind of customized highly sensitive strain-stress curve test device of automation according to claim 4,
It is characterized in that, turns USB line with RS232 interface line, RS232 between the pressure-detecting device (2) and data collecting system (3)
Or RS232 turns the connection of PCI-E cards.
9. a kind of customized highly sensitive strain-stress curve of automation according to claim 1,2,5,7 or 8 is surveyed
Trial assembly is set, which is characterized in that the object to be tested includes graphene assembly, graphene nanobelt assembly, carbon foams, bubble
Foam, charcoal-aero gel, Silica hydrogel, flexible material and senser element.
10. a kind of customized highly sensitive strain-stress curve test device of automation according to claim 6,
It is characterized in that, the object to be tested includes graphene assembly, graphene nanobelt assembly, carbon foams, foam, charcoal gas
Gel, Silica hydrogel, flexible material and senser element.
Priority Applications (1)
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CN201721830051.2U CN207662336U (en) | 2017-12-25 | 2017-12-25 | A kind of customized highly sensitive strain-stress curve test device of automation |
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CN201721830051.2U CN207662336U (en) | 2017-12-25 | 2017-12-25 | A kind of customized highly sensitive strain-stress curve test device of automation |
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CN207662336U true CN207662336U (en) | 2018-07-27 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108036709A (en) * | 2017-12-25 | 2018-05-15 | 大连理工大学 | A kind of customizable high sensitivity strain-stress curve test device of automation |
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2017
- 2017-12-25 CN CN201721830051.2U patent/CN207662336U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108036709A (en) * | 2017-12-25 | 2018-05-15 | 大连理工大学 | A kind of customizable high sensitivity strain-stress curve test device of automation |
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Granted publication date: 20180727 Termination date: 20211225 |