CN202736352U - Young modulus measuring instrument for experiment teaching - Google Patents
Young modulus measuring instrument for experiment teaching Download PDFInfo
- Publication number
- CN202736352U CN202736352U CN201220163400.0U CN201220163400U CN202736352U CN 202736352 U CN202736352 U CN 202736352U CN 201220163400 U CN201220163400 U CN 201220163400U CN 202736352 U CN202736352 U CN 202736352U
- Authority
- CN
- China
- Prior art keywords
- base
- measuring instrument
- counterweight plate
- fixing
- fixed
- 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
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 6
- 101100387911 Caenorhabditis elegans dop-2 gene Proteins 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a Young modulus measuring instrument for experiment teaching. The measuring instrument comprises a support frame, an optical lever system, a fixing platform 3, a counterweight plate 4, counterweights 6, a base 7, an upper clamping head 1 and a lower clamping head 2. The measuring instrument further comprises lightweight springs 5, spring hooks 9 and spring buckles 8. The spring hooks 9 are fixed on the bottom of the counterweight plate 4 for hooking the tops of the lightweight springs 5. The spring buckles 8 are fixed on the upper surface of the base 7 for fixing the lower ends of the lightweight springs 5. By fixing the lightweight springs between the bottom of the counterweight plate and the base, the measuring instrument enables the counterweight plate to be stable and not shaky during an experimental operation process. New measuring errors resulted from the shaking of the counterweight plate are thus significantly alleviated. Furthermore, the safety hazards resulted from easy falling of the counterweights during an operation process due to the shaky counterweight plate are also eliminated.
Description
Technical field
The utility model relates to the modulus measurer device that a kind of experimental teaching is used, and is mainly used in the college physical experiment teaching of institution of higher learning's science and engineering specialty, belongs to the experiment teaching instrument field.
Technical background
Young modulus is the Young's modulus of elasticity of solid material, is the important physical amount that solid material elastic deformation ability is described in mechanics of materials the inside.The measurement of Young modulus is one of the experimental project that must do in college of science and engineering of the institution of higher learning physics experiment teaching, and the method that is used at present physics experiment teaching measurement Young modulus mainly is optical lever method.The device that optical lever method is measured Young modulus mainly is made of optical lever system, support, tinsel firmware, counterweight, micrometer caliper, vernier caliper, meter ruler etc.Although utilize optical lever method to measure Young modulus higher precision is arranged, but in experimentation, scale pan is in vacant state, the student is in scale pan loading or off-load counterweight process, driving easily scale pan shakes it, so that the after-poppet position change of catoptron, and the student often can not wait auto levelizer fully static after reading again, introduced thus new measuring error; And because scale pan is unsettled always, counterweight is easy to come off in student's operating process and injures the student by a crashing object, thereby brings very large potential safety hazard for imparting knowledge to students.
Summary of the invention
The utility model provides a kind of experimental teaching modulus measurer, this measuring instrument can reduce the new measuring error introduced owing to the hanging swing of scale pan, and can eliminate the safety problem that the hanging swing owing to scale pan makes counterweight come off easily and bring in operating process.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of experimental teaching modulus measurer, comprise bracing frame, optical lever system, stationary platform 3, scale pan 4, counterweight 6, base 7, also comprise upper chuck 1 and lower dop 2; Described upper chuck 1 is the upper end that is used for fixing measured material 10, this upper chuck is fixed in the bracing frame top, described lower dop 2 is the bottoms that are used for fixing measured material 10, this time dop can slide up and down in the hole in the middle of the stationary platform freely, and described stationary platform 3 is fixed on the bracing frame; It is characterized in that, this measuring instrument also comprises light spring 5, carbine 9 and snak link 8, and described carbine 9 is fixed on the bottom of scale pan 4, is used for catching on the top of light spring 5, described snak link 8 is fixed on base 7 upper surfaces, is used for fixing the lower end of light spring 5.
When using this apparatus measures Young modulus, the suffered tensile force of measured material has been the gravity of counterweight no longer, also should comprise the elastic force K*(△ X of light spring), K is the elasticity coefficient of this light spring, the deformation length of △ X measured material.
Compare with prior art, the utlity model has following advantage: owing between the bottom of scale pan and base, fixed light spring, so that scale pan is relatively stable, reduced greatly the student the scale pan that loads or bring during the off-load counterweight rocking in the horizontal direction, also just reduced and introduce therefrom new measuring error; And because the restraining function of light spring, scale pan no longer acutely rocks, and counterweight does not just split away off so easily yet in the operating process, just is not easy to injure by a crashing object the student yet.
As the further improvement of this technical scheme, snak link 8 can be arranged on carbine 9 at the vertical projected position of base 7 upper surfaces, and namely snak link is corresponding with carbine in the position of vertical direction.And, light spring 5, carbine 9 and snak link 8 are three, these three carbines in the bottom of scale pan 4 with the position distribution of equilateral triangle, and these three snak links also are with the position distribution of equilateral triangle at the upper surface of base 7, and the equilateral triangle that consists of with described three carbines is corresponding.Snak link and carbine adopt such position distribution, so that be regular triangular prism shape by its three fixing springs, utilize the on-deformable characteristic of triangle, and fixedly scale pan is stablized in the horizontal direction it and do not rocked.When adopting this structure, in the measurement, the elastic force 3K*(△ X of this light spring)
Description of drawings
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Accompanying drawing is structural principle synoptic diagram of the present utility model;
Among the figure: the 1st, upper chuck, the 2nd, lower dop, the 3rd, stationary platform, the 4th, scale pan, the 5th, light spring, the 6th, counterweight, the 7th, base, the 8th, snak link, the 9th, carbine, the 10th, measured material.
Embodiment
As shown in drawings, a kind of experimental teaching modulus measurer, it comprises bracing frame, optical lever system, stationary platform 3, scale pan 4, counterweight 6, base 7, also comprises upper chuck 1 and lower dop 2; Described upper chuck 1 is the upper end that is used for fixing measured material 10, this upper chuck is fixed in the bracing frame top, described lower dop 2 is the bottoms that are used for fixing measured material 10, this time dop can slide up and down in the hole in the middle of the stationary platform freely, and described stationary platform 3 is fixed on the bracing frame.When the student did experiment, measured material 10 generally was steel wire.Optical lever system is exactly the optical lever system that conventional usefulness optical lever bar method is surveyed Experiment of Measuring Young's, is comprised of telescope, scale, plane mirror.
Between the scale pan 4 of this measuring instrument and base 7, be provided with three light springs 5, the upper end of these three light springs is caught on by three carbines 9 of scale pan bottom, its lower end is fixing by three snak links 8 of base upper surface, snak link is in carbine at the vertical projected position of base upper surface, these three carbines in the bottom of scale pan with the position distribution of equilateral triangle, and the upper surface of these three snak links end of at also is with the position distribution of equilateral triangle, and the equilateral triangle that consists of with described three carbines is corresponding.Snak link and carbine adopt such position distribution, so that be regular triangular prism shape by its three fixing springs, utilize the on-deformable characteristic of triangle, and fixedly scale pan does not stablely rock it.
Claims (3)
1. an experimental teaching modulus measurer comprises bracing frame, optical lever system, stationary platform (3), scale pan (4), counterweight (6), base (7), also comprises upper chuck (1) and lower dop (2); Upper chuck (1) is the upper end that is used for fixing measured material (10), this upper chuck is fixed in the bracing frame top, lower dop (2) is the bottom that is used for fixing measured material (10), this time dop can slide up and down in the hole of stationary platform middle (3) freely, and stationary platform (3) is fixed on the bracing frame; It is characterized in that, this measuring instrument also comprises light spring (5), carbine (9) and snak link (8), described carbine (9) is fixed on the bottom of scale pan (4), be used for catching on the top of light spring (5), described snak link (8) is fixed on base (7) upper surface, is used for fixing the lower end of light spring (5).
2. experimental teaching modulus measurer as claimed in claim 1, it is characterized in that: described snak link (8) is in carbine (9) at the vertical projected position of base (7) upper surface.
3. experimental teaching modulus measurer as claimed in claim 2, it is characterized in that: described light spring (5), carbine (9) and snak link (8) are three, and these three carbines in the bottom of scale pan (4) with the position distribution of equilateral triangle, and these three snak links also are with the position distribution of equilateral triangle at the upper surface of base (7), and the equilateral triangle that consists of with described three carbines is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220163400.0U CN202736352U (en) | 2012-04-18 | 2012-04-18 | Young modulus measuring instrument for experiment teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220163400.0U CN202736352U (en) | 2012-04-18 | 2012-04-18 | Young modulus measuring instrument for experiment teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202736352U true CN202736352U (en) | 2013-02-13 |
Family
ID=47662030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220163400.0U Expired - Fee Related CN202736352U (en) | 2012-04-18 | 2012-04-18 | Young modulus measuring instrument for experiment teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202736352U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928300A (en) * | 2012-11-15 | 2013-02-13 | 江南大学 | Anti-shaking Young modulus tester |
| CN104833574A (en) * | 2015-05-14 | 2015-08-12 | 云南师范大学 | Single slit diffraction experiment measurement device |
| CN105486590A (en) * | 2015-12-26 | 2016-04-13 | 唐山学院 | Young modulus instrument |
| CN110085103A (en) * | 2018-01-25 | 2019-08-02 | 杨翠红 | A kind of damping modulus measurer for Physical Experiment |
| CN110220799A (en) * | 2019-06-13 | 2019-09-10 | 四川大学 | The improvement device of Young's modules instrument device |
| CN112394027A (en) * | 2019-08-12 | 2021-02-23 | 中国石油化工股份有限公司 | Weight, reciprocating type friction and wear testing machine and friction and wear testing method |
-
2012
- 2012-04-18 CN CN201220163400.0U patent/CN202736352U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928300A (en) * | 2012-11-15 | 2013-02-13 | 江南大学 | Anti-shaking Young modulus tester |
| CN104833574A (en) * | 2015-05-14 | 2015-08-12 | 云南师范大学 | Single slit diffraction experiment measurement device |
| CN104833574B (en) * | 2015-05-14 | 2017-08-25 | 云南师范大学 | A kind of diffraction experiment by narrow opening measurement apparatus |
| CN105486590A (en) * | 2015-12-26 | 2016-04-13 | 唐山学院 | Young modulus instrument |
| CN110085103A (en) * | 2018-01-25 | 2019-08-02 | 杨翠红 | A kind of damping modulus measurer for Physical Experiment |
| CN110220799A (en) * | 2019-06-13 | 2019-09-10 | 四川大学 | The improvement device of Young's modules instrument device |
| CN112394027A (en) * | 2019-08-12 | 2021-02-23 | 中国石油化工股份有限公司 | Weight, reciprocating type friction and wear testing machine and friction and wear testing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202736352U (en) | Young modulus measuring instrument for experiment teaching | |
| CN202523276U (en) | Gravity acceleration tester | |
| CN202331996U (en) | Measuring device of spring stiffness coefficient | |
| CN106018116B (en) | Wire pulling method Young's modulus measurement method | |
| CN207380954U (en) | A kind of high school student's Physical Experiment coefficient of elasticity measurement device | |
| CN201662571U (en) | Fabric elasticity test instrument | |
| CN209432325U (en) | Plank ontology loading test equipment in a kind of building structure | |
| CN208026401U (en) | A kind of physics laboratory's dynamometer | |
| CN201083661Y (en) | Falling test device | |
| CN204143708U (en) | One probes into friction force rule detection instrument | |
| CN205426685U (en) | Young modulus measuring instrument of convenient experiment teaching usefulness | |
| CN208819468U (en) | A kind of junior physics study appurtenance | |
| RU2376647C2 (en) | Device for performance of laboratory works | |
| CN202720042U (en) | Express item weight checking device | |
| CN202994595U (en) | Young modulus measurement experimental apparatus | |
| CN202793911U (en) | Shaking-preventing device of Young modulus experiment instrument | |
| CN206321320U (en) | Support meanss and counter balance | |
| CN103604354A (en) | Symmetry-degree testing fixture for input-shaft flat surface | |
| CN103868788A (en) | Limiting weight tray device of Young's modulus determinator | |
| CN2893647Y (en) | Level measuring instrument | |
| CN204064157U (en) | Hole location and profile duplex measurement device | |
| CN201838229U (en) | Jolly balance | |
| CN204375277U (en) | A kind of experiment instrument for measuring inclined-plane mechanical efficiency | |
| CN208819457U (en) | A kind of maximum static friction force demonstrator | |
| CN203118329U (en) | Bridge model experiment device |
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: 20130213 Termination date: 20160418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |