CN204389310U - Tinsel measure apparatus of youngs modulus - Google Patents
Tinsel measure apparatus of youngs modulus Download PDFInfo
- Publication number
- CN204389310U CN204389310U CN201520101257.6U CN201520101257U CN204389310U CN 204389310 U CN204389310 U CN 204389310U CN 201520101257 U CN201520101257 U CN 201520101257U CN 204389310 U CN204389310 U CN 204389310U
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- China
- Prior art keywords
- tinsel
- reflective mirror
- portal frame
- youngs modulus
- measure apparatus
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Abstract
The utility model relates to a kind of teaching experimental equipment, is specifically related to a kind of tinsel measure apparatus of youngs modulus.Comprise portal frame and upper end and be fixedly connected on the tinsel that portal frame upper and lower end hangs scale pan, the crossbeam of described portal frame is provided with the generating laser launched vertically downward, the below of generating laser is provided with reflective mirror, described reflective mirror is horizontally disposed with, one end of reflective mirror is hinged on a heel post of portal frame, and the other end of reflective mirror is fixedly connected with on the metal filament.This tinsel measure apparatus of youngs modulus adopts the laser amplifier tensile elongation wiry of Vertical Launch, compact conformation, easy to operate, intuitively can show experimental result.
Description
Technical field
The utility model relates to a kind of teaching experimental equipment, is specifically related to a kind of tinsel measure apparatus of youngs modulus.
Background technology
Resilient material can produce forward strain when bearing normal stress, when deformation quantity does not exceed certain elastic limit of respective material, the ratio that definition normal stress and forward strain is the Young modulus of this material.The size mark of the Young modulus rigidity of material, Young modulus is larger, more deformation is less likely to occur.The method detecting tinsel Young modulus in existing senior middle school, College Physics teaching material and experimental apparatus has two kinds, first pulling method, scale pan stretched wire is hung in lower end wiry, utilize microscopic examination to connect the displacement of scale on the metal filament simultaneously, because this displacement is very little, need accurate microscope and careful observation, slightly carelessness will cause very big error even to cause the failure of an experiment; Second method is beam disturb, the support of suspension wire is installed one the 45 degree reflective mirrors tilted, a corner of reflective mirror is connected with tinsel, wiry stretching can drive reflective mirror to do pitching motion, install the light source of horizontal emission and vertically disposed scale in the side of support, the light that light source sends is irradiated on reflective mirror and reflexes on scale again.When flexible drive reflective mirror wiry produces slight pitching motion, the hot spot be reacted on scale has larger displacement.This beam disturb Comparison of experiment results is directly perceived, without the need to the instrument by precision.But because light source and reflective mirror split are arranged, structure is compact not, early stage adjusts cumbersome.
Summary of the invention
The purpose of this utility model is to provide the tinsel measure apparatus of youngs modulus that a kind of structure is simple, easy to operate, intuitively can show experimental result.
In order to reach above object, the technical scheme that the utility model adopts is as follows:
Tinsel measure apparatus of youngs modulus described in the utility model comprises portal frame and upper end is fixedly connected on the tinsel that portal frame upper and lower end hangs scale pan, the crossbeam of described portal frame is provided with the generating laser launched vertically downward, the below of generating laser is provided with reflective mirror, described reflective mirror is horizontally disposed with, one end of reflective mirror is hinged on a heel post of portal frame, and the other end of reflective mirror is fixedly connected with on the metal filament.
With vertically disposed pilot hole on described crossbeam, the top of described pilot hole is provided with reel, and described upper end wiry is connected on reel through pilot hole.
Adopt after technique scheme, this tinsel measure apparatus of youngs modulus adopts the laser amplifier tensile elongation wiry of Vertical Launch, compact conformation, easy to operate, intuitively can show experimental result.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
As shown in Figure 1, tinsel measure apparatus of youngs modulus described in the utility model comprises portal frame 1 and upper end is fixedly connected on the tinsel 3 that portal frame 1 upper and lower end hangs scale pan 2, the crossbeam 4 of described portal frame 1 is provided with the generating laser 5 launched vertically downward, the below of generating laser 5 is provided with reflective mirror 6, described reflective mirror 6 is horizontally disposed with, one end of reflective mirror 6 is hinged on a heel post of portal frame 1, and the other end of reflective mirror 6 is fixedly connected on tinsel 3.
With vertically disposed pilot hole on described crossbeam 4, the top of described pilot hole is provided with reel 7, and the upper end of described tinsel 3 is connected on reel 7 through pilot hole.
During use, first need zeroing, under the state of scale pan 2 blank panel, adjustment reflective mirror 6 and the tie point of tinsel 3, make reflective mirror 6 maintenance level, and the laser that generating laser 5 sends reflexes to the place at zero point on crossbeam 4 by reflective mirror 6; When Young modulus measures and starts, the counterweight of constant weight is put in scale pan 2, due to the stressed elongation of tinsel 3, reflective mirror 6 deflects, the hot spot reflexed on crossbeam 4 leaves the certain distance of zero migration, measures hot spot and the distance at zero point and can learn this Young modulus wiry by formulae discovery.
Claims (2)
1. tinsel measure apparatus of youngs modulus, comprise portal frame (1) and upper end and be fixedly connected on the tinsel (3) that portal frame (1) upper and lower end hangs scale pan (2), it is characterized in that: the crossbeam (4) of described portal frame (1) is provided with the generating laser (5) launched vertically downward, the below of generating laser (5) is provided with reflective mirror (6), described reflective mirror (6) is horizontally disposed with, one end of reflective mirror (6) is hinged on a heel post of portal frame (1), and the other end of reflective mirror (6) is fixedly connected on tinsel (3).
2. tinsel measure apparatus of youngs modulus according to claim 1, it is characterized in that: with vertically disposed pilot hole on described crossbeam (4), the top of described pilot hole is provided with reel (7), and the upper end of described tinsel (3) is connected on reel (7) through pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520101257.6U CN204389310U (en) | 2015-02-12 | 2015-02-12 | Tinsel measure apparatus of youngs modulus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520101257.6U CN204389310U (en) | 2015-02-12 | 2015-02-12 | Tinsel measure apparatus of youngs modulus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204389310U true CN204389310U (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520101257.6U Expired - Fee Related CN204389310U (en) | 2015-02-12 | 2015-02-12 | Tinsel measure apparatus of youngs modulus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204389310U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856376A (en) * | 2019-01-18 | 2019-06-07 | 甘肃省交通规划勘察设计院股份有限公司 | A kind of device for testing Shrinkage Characteristics of Cement-based Materials |
| CN111693378A (en) * | 2020-07-31 | 2020-09-22 | 西京学院 | Device for measuring Young modulus of metal wire |
-
2015
- 2015-02-12 CN CN201520101257.6U patent/CN204389310U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856376A (en) * | 2019-01-18 | 2019-06-07 | 甘肃省交通规划勘察设计院股份有限公司 | A kind of device for testing Shrinkage Characteristics of Cement-based Materials |
| CN111693378A (en) * | 2020-07-31 | 2020-09-22 | 西京学院 | Device for measuring Young modulus of metal wire |
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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: 20150610 Termination date: 20160212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |