CN203350130U - Bridge type Young's elastic modulus measuring device - Google Patents
Bridge type Young's elastic modulus measuring device Download PDFInfo
- Publication number
- CN203350130U CN203350130U CN 201320461546 CN201320461546U CN203350130U CN 203350130 U CN203350130 U CN 203350130U CN 201320461546 CN201320461546 CN 201320461546 CN 201320461546 U CN201320461546 U CN 201320461546U CN 203350130 U CN203350130 U CN 203350130U
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- elastic modulus
- young
- bridge type
- scale
- base
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Abstract
A bridge type Young's elastic modulus measuring device is characterized by comprising a base, a vertical column is arranged on the base, a hanging bracket is arranged on the vertical column, the hanging bracket is provided with two metal wire fixing devices, the hanging bracket is provided with a scale fixing frame, the scale fixing frame is provided with a scale, the base is provided with a controller, and the controller is internally provided with a Kelvin bridge. The bridge type Young's elastic modulus measuring device has the beneficial effects that compared with a conventional optical lever method for measuring the Young's elastic modulus, the device used for measuring the Young's elastic modulus of a metal wire has the advantages that the operation is simple and convenient, the measurement result is high in accuracy, and the measurement result is less influenced by human factors.
Description
Affiliated technical field
The utility model relates to a kind of physics facility, especially can be for measuring the bridge type young elastic modulus detection device of tinsel Young's modulus of elasticity.
Background technology
Young's modulus of elasticity is an important physical amount describing solid material elastic deformation character, is one of parameter commonly used in engineering design.Measurement to Young modulus is also more typical Experiments of Machanics in Physics Practical Courses.Usually take tinsel as measuring object, adopt optical lever method to measure the minor alteration amount of length.The preliminary work that adopts optical lever method to measure the Young's modulus of elasticity experiment requires operation precisely, and very loaded down with trivial details, and the precision of measurement result is affected by human factors very large.The physical quantity recorded also needs loaded down with trivial details calculating just can obtain the value of Young's modulus of elasticity.
Summary of the invention
For solving the above problems, the utility model provides a kind of bridge type young elastic modulus detection device.During stress changes that this bridge type young elastic modulus detection device can be subject to according to tinsel, the variation of resistance, calculate Young's modulus of elasticity wiry.
The technical scheme that the utility model technical solution problem adopts is: invent a kind of bridge type young elastic modulus detection device, be characterized in, bridge type young elastic modulus detection device has a base, column is installed on base, mounting suspension on column, suspension bracket is provided with two tinsel stationary installations, suspension bracket is provided with the scale fixed mount, on the scale fixed mount, scale is installed, controller is installed on base, Kelvin bridge is installed in controller.
The beneficial effects of the utility model are, to measure Young's modulus of elasticity than traditional optical lever method easy and simple to handle for measuring the tinsel Young's modulus of elasticity for the utility model, and the precision of measurement result is high and be affected by human factors less.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Accompanying drawing is the front view of the present embodiment.
1 base in figure, 2 controllers, 3 wires, 4 wire clamps, 5 wires, 6 wires, 7 scales, 8 tested tinsels, 9 columns, 10 wire clamps, 11 scale folders, 12 scale lock-screws, 13 scale lock-screws, 14 suspension brackets, 15 wire clamps, 16 scales, 17 compensation tinsels, 18 wire clamps, 19 wires, 20 pouring weights, 21 counterweights, 22 pouring weights.
Embodiment
As shown in drawings, controller 2 and column 9 are installed on base 1, column 9 upper end mounting suspensions 14, install scale folder 11 on suspension bracket 14, on scale folder 11, scale 7 and scale 16 are installed, scale lock-screw 12 locking scales 7, scale lock-screw 13 locking scales 16.Kelvin bridge and processor are housed in controller 2, draw measuring wire 3, wire 5, wire 6 and wire 19, wire clamp 4 is installed in wire 3 outer ends, wire clamp 10, wire 6 outer ends installation wire clamps 15, wire 19 outer ends installation wire clamps 18 are installed in wire 5 outer ends.
During experiment, compensation tinsel 17 and tested tinsel 8 are selected same material, fix respectively tested tinsel 8 and compensation tinsel 17 at the two ends of suspension bracket 14, tested tinsel 8 lower ends are pouring weight 22 fixedly, compensation tinsel 17 lower ends are pouring weight 20 fixedly, wire clamp 4 and wire clamp 10 are clipped on tested tinsel 8, wire clamp 15 and wire clamp 18 are clipped on compensation tinsel 17.Make the distance between wire clamp 4 and wire clamp 10 equal the distance between wire clamp 15 and wire clamp 18, measure the resistivity of tested tinsel 8.Reometer on controller 2 is returned to zero, place counterweight 21 on pouring weight 22, again the reometer on controller 2 is returned to zero, utilize Kelvin bridge accurately to measure the change amount of tested tinsel 8 resistance, calculate the elongation of tested tinsel 8 according to the change amount of tested tinsel 8 resistance, according to the elongation of tested tinsel 8 and add counterweight 21 weighing scale calculate the Young's modulus of elasticity of tested tinsel 8.
Claims (1)
1. bridge type young elastic modulus detection device, it is characterized in that: bridge type young elastic modulus detection device has a base, on described base, column is installed, mounting suspension on described column, described suspension bracket is provided with two tinsel stationary installations, and described suspension bracket is provided with the scale fixed mount, on described scale fixed mount, scale is installed, on described base, controller is installed, Kelvin bridge is installed in described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320461546 CN203350130U (en) | 2013-07-22 | 2013-07-22 | Bridge type Young's elastic modulus measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320461546 CN203350130U (en) | 2013-07-22 | 2013-07-22 | Bridge type Young's elastic modulus measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203350130U true CN203350130U (en) | 2013-12-18 |
Family
ID=49750014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320461546 Expired - Fee Related CN203350130U (en) | 2013-07-22 | 2013-07-22 | Bridge type Young's elastic modulus measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203350130U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692651A (en) * | 2018-05-03 | 2018-10-23 | 荆楚理工学院 | A kind of metal young modulus measuring device and its application method |
| CN110220798A (en) * | 2019-06-13 | 2019-09-10 | 四川大学 | Steel wire Young's modules instrument improves device |
-
2013
- 2013-07-22 CN CN 201320461546 patent/CN203350130U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692651A (en) * | 2018-05-03 | 2018-10-23 | 荆楚理工学院 | A kind of metal young modulus measuring device and its application method |
| CN110220798A (en) * | 2019-06-13 | 2019-09-10 | 四川大学 | Steel wire Young's modules instrument improves device |
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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: 20131218 Termination date: 20140722 |
|
| EXPY | Termination of patent right or utility model |