CN209148448U - A kind of modulus measurer - Google Patents
A kind of modulus measurer Download PDFInfo
- Publication number
- CN209148448U CN209148448U CN201821847192.XU CN201821847192U CN209148448U CN 209148448 U CN209148448 U CN 209148448U CN 201821847192 U CN201821847192 U CN 201821847192U CN 209148448 U CN209148448 U CN 209148448U
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- China
- Prior art keywords
- wire
- hall element
- measured
- counterweight
- glass plate
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Abstract
The utility model relates to a kind of modulus measurers, including bracket, metal wire fixing device, wire to be measured, counterweight support, counterweight, level modulation screw platform and micro-displacement detection device, it is characterised in that: the metal wire fixing device is located at cantilever tip；One end of the wire to be measured is fixed by metal wire fixing device with bracket；The counterweight support is fixedly connected with the other end of wire to be measured；The counterweight can be placed in counterweight support, and pulling force suffered by wire to be measured is changed；The level modulation screw platform is located at position among bracket；The micro-displacement detection device is located on level modulation screw platform；When increasing counterweight into counterweight support, deformation occurs for wire to be measured, is changed into the displacement of Hall element by lever amplification, and displacement of the Hall element in magnet steel shows that cost is cheaper by digital voltage display, operates more simple.
Description
Technical field
The utility model relates to a kind of modulus measurers.
Background technique
Under external force, the change in shape that solid is occurred becomes deformation.It can be divided into elastic deformation and plastic deformation
Two kinds.In this experiment, wire elastic deformation is only studied, for this purpose, the size of external force should be controlled, after guaranteeing that external force is removed,
Object resilient.
Simplest deformation is wire by the elongation and shortening after external force.Metal filament length L, sectional area S, along length
Direction exerts a force after F, and the elongation Δ L of object has then in the elastic limit of wire:
E is called Young's modulus of elasticity by we.In physical test, often by stripe object (such as steel wire, metallic rod) edge
Longitudinal elasticity modulus is Young's modulus.
Pulling method is that fixed counterweight is cooperated to apply pulling force to wire using hook, then amplifies wire using optical lever
Chroococcus minutus and measure.Optical lever method tester is disadvantageous in that:
1, wire can all be swung after changing counterbalance mass every time, can be measured after must settling out to it,
Therefore larger by environmental influence, some small vibrations and the flowing of biggish air can all impact experiment；
2, when being measured with optical lever, it is limited by the bright intensity of environment, while when finding graduated scale with telescope, operation
Difficulty is larger, takes a long time.
Utility model content
The purpose of this utility model is to provide a kind of modulus measurers, at least one side to solve the above problems
Face.
In order to realize that technical solution used by the purpose of this utility model is: a kind of modulus measurer, including branch
Frame, metal wire fixing device, wire to be measured, counterweight support, counterweight, level modulation screw platform and micro-displacement detection device,
It is characterized by: the metal wire fixing device is located at cantilever tip；One end of the wire to be measured is fixed by wire
Device is fixed with bracket；The counterweight support is fixedly connected with the other end of wire to be measured；The counterweight can be placed and counterweight support
It is interior, change pulling force suffered by wire to be measured；The level modulation screw platform is located at position among bracket；The micro-displacement inspection
Survey device be located on level modulation screw platform, micro-displacement detection device include glass plate box, wire irony folder, lever,
Hall element, digital voltage display and power supply with pressure stabilizing and boosting, the glass plate box are located at horizontal adjust
On screw-making platform；Wire irony folder is located in glass plate box, for pass through the wire to be measured in glass plate box
It is fixedly connected；The shorter one end of the lever arm of force is fixedly connected with wire irony folder；One end of the Hall element and thick stick
The longer one end of stick force arm is fixedly connected, and the other end of Hall element is equipped with a magnet steel；The digital voltage display with suddenly
You connect element, and digital voltage display includes digital voltmeter and Voltage stabilizing module, and the digital voltmeter and Hall element connect
It connects；One end of the Voltage stabilizing module is connect with Hall element, and the other end of Voltage stabilizing module is connect with power supply；When to counterweight support
When interior increase counterweight, deformation occurs for wire to be measured, is changed into the displacement of Hall element by lever amplification, Hall element is in magnetic
Displacement in steel is shown by digital voltage display.
Further, the glass plate box is cuboid, and the front box face center of glass plate box is provided with rectangular window, size
Just accommodating a digital voltage display inlays it wherein；There is its face bottom surface of an aperture to have at the top of glass plate box simultaneously
One circular window, wherein there are also row's equidistant circular holes.
Further, the power supply is by two section 1.5V dry cell batteries at the battery is loaded on a battery case with switch
It is interior.
Further, the lever, Hall element, digital voltage display and power supply are respectively positioned in glass plate box.
The utility model has the beneficial effects that the utility model is intended to improve the measurement method to Young's modulus, it only need to be in original
On the basis of having laboratory apparatus, optical lever and telescope are removed, this laboratory apparatus is installed i.e. on level modulation screw platform
It can.The big problem of optical lever operation difficulty before the utility model effective solution, at the same it is time-consuming less, and phenomenon is more straight
It sees, the deformation quantity of wire to be measured is passed through into corresponding Hall element voltage in time and is shown by digital voltage display,
Cost is cheaper, and operation is more simple, only needs swing weight-adding.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model pulling method modulus measurer.
Fig. 2 is that the internal structure of the utility model pulling method modulus measurer is intended to.
In figure, 1- metal wire fixing device, 2- bracket, 3- wire to be measured, 4- micro-displacement detection device, 5- rectangular window
Mouthful, 6- level modulation screw platform, 7- counterweight, 8- counterweight support, 9- digital voltmeter, 10- wire irony folder, 11- lever,
12- Hall element, 13- Voltage stabilizing module, 14- magnet steel, 15- power supply.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
A kind of modulus measurer structure of embodiment of the utility model is schematically shown as shown in Figure 1, Figure 2.
As shown in Figure 1 and Figure 2, a kind of modulus measurer, including bracket (2), metal wire fixing device (1), gold to be measured
Belong to silk (3), counterweight support (8), counterweight (7), level modulation screw platform (6) and micro-displacement detection device (4), feature exists
In: the metal wire fixing device (1) is located at bracket (2) top；One end of the wire to be measured (3) is fixed by wire
Device (1) and bracket (2) are fixed；The counterweight support (8) is fixedly connected with the other end of wire to be measured (3)；The counterweight (7)
It can place in counterweight support (8), change pulling force suffered by wire to be measured (3)；The level modulation screw platform (6) is located at bracket
(2) intermediate position；The micro-displacement detection device (4) is located on level modulation screw platform (6), micro-displacement detection device
It (4) include glass plate box, wire irony folder (10), lever (11), Hall element (12), the number with pressure stabilizing and boosting
Word voltage display and power supply (15), the glass plate box are located on level modulation screw platform (6)；The wire iron
Matter folder (10) is located in glass plate box, for being fixedly connected with by the wire to be measured (3) in glass plate box；The lever
(11) the shorter one end of the arm of force is fixedly connected with wire irony folder (10)；One end and lever (11) of the Hall element (12)
The longer one end of the arm of force is fixedly connected, and the other end of Hall element (12) is equipped with a magnet steel (14)；The digital voltage is shown
Device is connect with Hall element (12), and digital voltage display includes digital voltmeter (9) and Voltage stabilizing module (13), the number electricity
Pressure table (9) is connect with Hall element (12)；One end of the Voltage stabilizing module (13) is connect with Hall element (12), Voltage stabilizing module
(13) the other end is connect with power supply (15)；When increasing counterweight (7) into counterweight support (8), wire (3) to be measured occurs
Deformation, is changed into the displacement of Hall element (12) by lever (11) amplification, and Hall element (12) (generates uniform in magnet steel (14)
Gradient magnetic) in displacement shown by digital voltage display, read digital voltage value can be obtained according to corresponding relation formula
Wire deformation quantity out.
As shown in Figure 1 and Figure 2, the glass plate box is cuboid, and the front box face center of glass plate box is provided with rectangular window
(5), size, which just accommodates a digital voltage display, inlays it wherein；Have at the top of glass plate box simultaneously an aperture its
There is a circular window in face bottom surface, wherein there are also row's equidistant circular holes, makes wire to be measured (3) that can pass through glass plate box well
It is fixedly connected with counterweight support (8) below bracket (2).
As shown in Figure 1 and Figure 2, power supply (15) the You Liangjie 1.5V dry cell batteries are at the battery has loaded on one and opens
In the battery case of pass, the work for digital voltage display provides electric energy.
As shown in Figure 1 and Figure 2, the lever (11), Hall element (12), digital voltage display and power supply (15)
It is respectively positioned in glass plate box.
When using the utility model, by increasing and decreasing counterweight (7) in counterweight support (8), and make wire to be measured (3) that shape occurs
Become, the deformation of wire (3) to be measured is changed into the displacement of Hall element (12) by lever (11) amplification, and Hall element (12) exists
Displacement in magnet steel (14) (generating uniform gradient magnetic field) is shown in digital voltage by corresponding Hall element (12) voltage and shows
Show on device, then reads voltage value, according to corresponding relation formula, you can get it wire (3) deformation quantity to be measured.Whole process only needs
Increase and decrease counterweight (7), it is easy to operate, it is time-consuming shorter, while phenomenon can be very intuitive.
It is worth noting that: the meaning of " plurality " is two or more in the description of the present invention, unless separately
There is clearly specific restriction.In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ",
The terms such as " connection ", " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or one
Ground connection；It can be mechanical connection, for the ordinary skill in the art, can understand above-mentioned art as the case may be
The concrete meaning of language in the present invention.
It is obvious to a person skilled in the art that the utility model patent is not limited to the thin of above-mentioned exemplary embodiment
Section, and without departing substantially from the spirit or essential attributes of the utility model patent, it can be real in other specific forms
Existing the utility model patent.It therefore, in all respects, the embodiments should be taken as exemplary, and is non-limit
Property processed, the range of the utility model patent is indicated by the appended claims rather than the foregoing description, it is intended that power will be fallen in
Obtaining for benefit requirement is included in the utility model patent with all changes in the meaning and scope of important document.It should not be by claim
In any appended drawing reference be construed as limiting the claims involved.
Claims (4)
1. a kind of modulus measurer, including bracket, metal wire fixing device, wire to be measured, counterweight support, counterweight, level
Modulate screw platform and micro-displacement detection device, it is characterised in that: the metal wire fixing device is located at cantilever tip；It is described
One end of wire to be measured is fixed by metal wire fixing device with bracket；The other end of the counterweight support and wire to be measured is solid
Fixed connection；The counterweight can be placed in counterweight support, and pulling force suffered by wire to be measured is changed；The level modulation screw platform position
The position among bracket；The micro-displacement detection device is located on level modulation screw platform, micro-displacement detection device packet
Include glass plate box, wire irony folder, lever, Hall element, the digital voltage display with pressure stabilizing and boosting and confession
Power supply, the glass plate box are located on level modulation screw platform；The wire irony folder is located in glass plate box, is used for
It is fixedly connected with by the wire to be measured in glass plate box；The shorter one end of the lever arm of force and wire irony are clamping fixed
Connection；One end of the Hall element is fixedly connected with the longer one end of lever arm of force, and the other end of Hall element is equipped with one
Magnet steel；The digital voltage display is connect with Hall element, and digital voltage display includes digital voltmeter and Voltage stabilizing module,
The digital voltmeter is connect with Hall element；One end of the Voltage stabilizing module is connect with Hall element, Voltage stabilizing module it is another
End is connect with power supply；When increasing counterweight into counterweight support, deformation occurs for wire to be measured, is changed by lever amplification
The displacement of Hall element, displacement of the Hall element in magnet steel are shown by digital voltage display.
2. a kind of modulus measurer according to claim 1, it is characterised in that: the glass plate box is cuboid,
The front box face center of glass plate box is provided with rectangular window, and size, which just accommodates a digital voltage display, makes it inlay it
In；There is its face bottom surface of an aperture to have a circular window at the top of glass plate box simultaneously, wherein there are also row's equidistant circular holes.
3. a kind of modulus measurer according to claim 1, it is characterised in that: the power supply is by two section 1.5V
Dry cell batteries are at the battery is loaded in a battery case with switch.
4. a kind of modulus measurer according to claim 1, it is characterised in that: the lever, Hall element, number
Voltage display and power supply are respectively positioned in glass plate box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821847192.XU CN209148448U (en) | 2018-11-10 | 2018-11-10 | A kind of modulus measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821847192.XU CN209148448U (en) | 2018-11-10 | 2018-11-10 | A kind of modulus measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209148448U true CN209148448U (en) | 2019-07-23 |
Family
ID=67285088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821847192.XU Expired - Fee Related CN209148448U (en) | 2018-11-10 | 2018-11-10 | A kind of modulus measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209148448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823944A (en) * | 2019-10-18 | 2020-02-21 | 航天材料及工艺研究所 | High-temperature thermal expansion performance testing device in high-heat-conduction high-modulus carbon fiber |
-
2018
- 2018-11-10 CN CN201821847192.XU patent/CN209148448U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823944A (en) * | 2019-10-18 | 2020-02-21 | 航天材料及工艺研究所 | High-temperature thermal expansion performance testing device in high-heat-conduction high-modulus carbon fiber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 Termination date: 20201110 |