CN202939099U - Young modulus tester - Google Patents
Young modulus tester Download PDFInfo
- Publication number
- CN202939099U CN202939099U CN2012206678503U CN201220667850U CN202939099U CN 202939099 U CN202939099 U CN 202939099U CN 2012206678503 U CN2012206678503 U CN 2012206678503U CN 201220667850 U CN201220667850 U CN 201220667850U CN 202939099 U CN202939099 U CN 202939099U
- Authority
- CN
- China
- Prior art keywords
- glass tube
- young modulus
- disk
- counterweight
- thin glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a young modulus tester. The young modulus tester is characterized by comprising a cylindrical container, a disk at the opening part of the cylindrical container, and a weight, wherein a communicated conduit is arranged on the cylindrical container; an injection cavity is arranged at one end of the conduit; a thin display glass tube is connected to the injection cavity; a graduated disc corresponds to the thin display glass tube; and the weight is connected with a to-be-tested metal wire connected to a bracket, so that the weight acts on the disk. Therefore, the size of force for drawing the metal wire can be calculated by measuring the mass of the weight, the radius of the thin glass tube and the ascending height of a solution in the thin glass tube, and then young modulus can be calculated by measuring the length and the cross sectional area of the metal wire. The young modulus tester solves the problems of complicated operation of existing experimental apparatus and errors of data measurement.
Description
Technical field
The utility model relates to a kind of Young's modulus of elasticity tester of measuring metal for the static stretch method.Effectively improved the precision of measurement data.
Background technology
Young's modulus of elasticity is an important physical amount describing solid material elastic deformation ability, is also one of foundation of selected mechanical component material, parameter commonly used in same still engineering.
Young modulus (Young's modulus) is to describe the physical quantity of solid material opposing deformability.Article one, length is that L, sectional area are that the tinsel of S extends Δ L under power F effect.F/S is stress, and its physical significance is the suffered power of tinsel unit cross-sectional area; Δ L/L named strain, and its physical significance is the corresponding elongation of tinsel unit length.The ratio of stress and strain also claims Young modulus elastic modulus.
After measuring each amount of equal sign the right according to following formula, just can calculate Young modulus.Wherein F, L and S can record with general method, and the value that has elongation Δ L only is very little, are difficult for surveying accurately with general purpose tool.
Due to above-mentioned experimentation, the shortcoming such as instrumentation is complicated, and the experimental data error is large for addressing this problem, is being improved aspect disclosed instrument and experimental technique.As:
Improve experimental provision with vernier caliper the 1 high Hailin of Henan Polytechnic Institute, and experimental technique and process are suitably carried out perfect, increases on the reliability of experiment, measuring accuracy.
2 Chen Wei of department of physics of Mudanjiang Teachers College common vetch, Liu Yanfeng improves telescope, optical lever etc., has reduced the difficulty of regulating, and has simplified experimentation, has reduced experimental error, and the measuring accuracy of Young modulus improves.
3 Chuxiong Normal University's physics and electronics technology are Dou Jinlan, and Wang Xinchun, Shen Jiawang, Wang Kunlin read the scheme of scale label value repeatedly in conjunction with the light amplification principle with disposable increasing (subtracting) counterweight.
4 College of Mathematics ﹠ Physics, Qingdao University of Science ﹠ Technology wish and defend Yang Qinglei by to the improvement of optical system, and adjustment process is more directly perceived, has overcome the blindness of adjusting, and has relatively shortened the adjustment time of instrument.
5 fine jade state College Physics systems, Huang Huairen has simplified measuring process relatively by the repacking to measurement mechanism, improves to reducing chance and the measuring accuracy that error produces.
6 Zhao Min of Electronics and Information Engineering institute of Hefei Teachers College, Qiang Xiaoming, chapter Wei Fang replaces original yardstick telescope with microlaser, has relatively improved measuring accuracy, has obviously improved experimental implementation.
In sum, by above-mentioned improvement, the measurement aspect of comparing traditional instrument really improves.But for experimental apparatus operation or more complicated, and the data of measuring have certain error equally, and the amount that elongation Δ L is amplified neither be very large.
Summary of the invention
In view of above-mentioned present situation, the purpose of this utility model is to provide a kind of improved static stretch method and measures the metal wire Yang's modulus tester, can measure fast and accurately the length that tinsel to be measured is elongated.
For achieving the above object, technical solution of the present utility model is: a kind of Young modulus tester, comprise hydrostatic column, and be arranged on the disk of hydrostatic column port part, be provided with the conduit of connection on described hydrostatic column, this conduit one end is provided with a fluid injection chamber, be connected one with the fluid injection chamber and show thin glass tube, and with show that thin glass tube is corresponding an index dial arranged, also comprise and dispose counterweight, this counterweight is connected with tinsel to be measured on being connected to support, and counterweight is acted on disk.When putting into liquid medium in hydrostatic column, be elongated by tinsel to be measured, the liquid in hydrostatic column is discharged from, and records liquid level in thin glass tube by index dial.
During this was novel, the center of related disk one side end face had a concave arc.When being used for contacting with counterweight, keep counterweight to be positioned at the center of disk.
During this is novel, also comprise be arranged in hydrostatic column every liquid film or every the liquid bag.Utilization can be avoided the overflow in hydrostatic column in test process every liquid film or every the liquid bag.
The good effect that the utlity model has is: utilize counterweight to act on tinsel to be measured, tinsel is elongated, the special testing tool that the height that rises by solution in thin glass tube forms in order to calculate small elongation wiry to be measured.By the quality of measurement counterweight, the radius of thin glass tube, the height that in thin glass tube, solution rises just can be calculated the size of the power of drawing metal, then be measured length wiry and cross-sectional area, just can calculate Young modulus.Have easy and simple to handle, the characteristics that measuring accuracy is high.This Novel photo really improves than the measurement aspect of traditional instrument.But, more complicated also for experimental apparatus operation, and the data of measuring still have certain error, and the amount that elongation Δ L is amplified neither be very large.
Description of drawings
Fig. 1 is this novel schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
Young modulus tester as shown in Figure 1, comprise hydrostatic column 5, be provided with the conduit 12 of connection on described hydrostatic column 5, these conduit 12 1 ends are provided with a fluid injection chamber 11, be connected one with fluid injection chamber 11 and show thin glass tube 10, and with show that thin glass tube 10 is corresponding an index dial 9 arranged.Sealing-plug 13 is equipped with at inlet place on the fluid injection chamber 11 of the present embodiment.Also include a disk 4, this disk 4 is arranged on hydrostatic column 5 port parts.The center of the described disk of the present embodiment 4 one side end faces has a concave arc 14.When being used for contacting with counterweight, keep counterweight to be positioned at the center of disk.In this is novel, also comprise and dispose counterweight 3, this counterweight 3 is connected with tinsel to be measured 2 on being connected to support 1, and counterweight 3 is acted on disk 4.Support 1 in above-mentioned is arranged on Three-leg stand 8 with pallet 7.When using, put into liquid medium in hydrostatic column 5, and place every liquid film 6 on the liquid medium in hydrostatic column 5.By every liquid film 6, can avoid in test process, prevent the overflow in hydrostatic column 5.
In this is novel, except selecting every the mode of liquid film 6, also can select every liquid bag (polybag).During use, should be connected with the entrance of conduit 12 every the outlet of liquid bag.
Experimental principle
The measurement of elongation Δ L:
Weight increase when counterweight, tinsel to be measured stretches, make its elongation Δ L, counterweight descends simultaneously, extruding disk 4, disk 4 also descends, the liquid in extruded cylindrical container 5, a part of liquid in hydrostatic column 5 is flowed in demonstration thin glass tube 10 through conduit 12, show one section height that the liquid level in thin glass tube 10 can rise.
Show by measurement the height that in thin glass tube 10, liquid rises, show the radius of thin glass tube 10 and the radius of hydrostatic column 5, just can be in the hope of the elongation Δ L of tinsel 2 to be measured.
Suppose to show the radius R=20cm of thin glass tube 10, the radius r=1mm of hydrostatic column 5, enlargement factor k=40000, be equivalent to elongation Δ L has been amplified 40000 times, and simultaneously, when the R increase, when r reduced, the value of k also can increase.Amplification to Δ L can reach larger, and the length after amplification can with the naked eye directly be observed, and has reduced greatly simultaneously the error of data, has improved the precision of experiment, makes very simple that the operation of experimental apparatus becomes.
Pulling force T tries to achieve:
Analytical weights and disk whole stressed is subjected to buoyancy F upwards floating, the pulling force T that tinsel makes progress, downward gravity G=mg(m is the quality of counterweight).
By measuring the quality of counterweight, the radius of thin glass tube, the height that in thin glass tube, solution rises, the size that just can calculate the power T of drawing metal is measured the Young modulus Y that length wiry and cross-sectional area just can be regarded as again.
Operation steps
At first record the liquid level in thin glass tube, then increase counterbalance mass, tinsel to be measured is elongated, and the liquid in container is discharged from, and again records the liquid level in thin glass tube, simultaneously the quality of the counterweight of record.
Claims (3)
1. Young modulus tester, it is characterized in that, comprise hydrostatic column (5), and be arranged on the disk (4) of hydrostatic column (5) port part, be provided with the conduit (12) of connection on described hydrostatic column (5), these conduit (12) one ends are provided with a fluid injection chamber (11), be connected one with fluid injection chamber (11) and show thin glass tube (10), and with show that thin glass tube (10) is corresponding an index dial (9) arranged, also comprise and dispose counterweight (3), this counterweight (3) is connected with tinsel to be measured (2) on being connected to support (1), counterweight (3) is acted on disk (4).
2. a kind of Young modulus tester according to claim 1, is characterized in that, wherein the center of disk (4) one side end faces has a concave arc.
3. a kind of Young modulus tester according to claim 1, is characterized in that, also comprise be arranged in hydrostatic column (5) every liquid film (6) or every the liquid bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206678503U CN202939099U (en) | 2012-12-07 | 2012-12-07 | Young modulus tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206678503U CN202939099U (en) | 2012-12-07 | 2012-12-07 | Young modulus tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939099U true CN202939099U (en) | 2013-05-15 |
Family
ID=48323330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206678503U Expired - Fee Related CN202939099U (en) | 2012-12-07 | 2012-12-07 | Young modulus tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939099U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018109A (en) * | 2012-12-07 | 2013-04-03 | 东北大学秦皇岛分校 | Tester for Young's modulus |
| CN105387821A (en) * | 2015-12-16 | 2016-03-09 | 山东科技大学 | Test device for monitoring vertical compression deformation amount of coal pillar |
-
2012
- 2012-12-07 CN CN2012206678503U patent/CN202939099U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018109A (en) * | 2012-12-07 | 2013-04-03 | 东北大学秦皇岛分校 | Tester for Young's modulus |
| CN105387821A (en) * | 2015-12-16 | 2016-03-09 | 山东科技大学 | Test device for monitoring vertical compression deformation amount of coal pillar |
| CN105387821B (en) * | 2015-12-16 | 2017-11-07 | 山东科技大学 | A kind of experimental rig for being used to monitor the vertical compress variation of coal column |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2938074Y (en) | Liquid surface tension coefficient measuring instrument | |
| CN204461304U (en) | A kind of tube wall thickness analyzer | |
| CN207380954U (en) | A kind of high school student's Physical Experiment coefficient of elasticity measurement device | |
| US11703401B2 (en) | Measuring device and measuring method for measuring unbalanced moment of bottom surface of circular valve core | |
| CN204027960U (en) | Block ore density measurement device | |
| CN101782449A (en) | Calibration table of micro pressure sensor | |
| CN202939099U (en) | Young modulus tester | |
| CN103018109A (en) | Tester for Young's modulus | |
| CN105067481A (en) | Digital mud specific gravity tester and testing method | |
| CN203299088U (en) | Temperature controlled determinator for liquid surface tension coefficients | |
| CN110646323A (en) | Device and method for measuring liquid density by using equal-volume static buoyancy comparison method | |
| CN202305366U (en) | Liquid surface tension coefficient measuring instrument | |
| CN203376213U (en) | Experimental instrument for measuring Young modulus of metal wire by tensile method | |
| CN109916582B (en) | Automatic deflection measuring device and method | |
| CN108645711B (en) | Micro-displacement detection device for metal rubber material and detection method thereof | |
| CN202974770U (en) | Young modulus measurer | |
| CN206281482U (en) | A kind of device measured across waters deflection of bridge span | |
| CN202994595U (en) | Young modulus measurement experimental apparatus | |
| CN2504625Y (en) | Liquid surface tension coefficient analyzer | |
| CN202075199U (en) | Platinum ring method liquid surface / interface tension meter | |
| CN202453273U (en) | Device for measuring liquid surface tension coefficients | |
| CN113533033A (en) | Metal wire Young modulus measuring instrument based on hydraulic pressure micro displacement amplifier principle | |
| CN211528030U (en) | Glass sample stress application force measuring device for stress photoelastic coefficient test | |
| CN211825543U (en) | Solid density measuring device | |
| CN201344890Y (en) | Liquid surface tension coefficient measuring apparatus for teaching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20161207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |