CN202562816U - Modified Young modulus experimental instrument - Google Patents
Modified Young modulus experimental instrument Download PDFInfo
- Publication number
- CN202562816U CN202562816U CN2012202209662U CN201220220966U CN202562816U CN 202562816 U CN202562816 U CN 202562816U CN 2012202209662 U CN2012202209662 U CN 2012202209662U CN 201220220966 U CN201220220966 U CN 201220220966U CN 202562816 U CN202562816 U CN 202562816U
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- lamp
- ruler
- optical lever
- tinsel
- young modulus
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Abstract
A modified Young modulus experimental instrument comprises a ruler reading frame and a metal wire suspension bracket, wherein a telescope and a lamp-box-shaped ruler are mounted on the ruler reading frame, a platform is assembled on the metal wire suspension bracket, an optical lever is arranged on the platform, a permanent magnet is mounted on a cross bar of the optical lever, and a metal wire chuck and a weight tray are assembled with suspended metal wires. The lamp-box-shaped ruler consists of a long-strip-shaped light box body with a built-in lamp light source and a transparent scale ruler which is arranged in the front of the light box body, wherein the lamp light source is composed of a row of light-emitting diode (LED) lamps and a battery which are placed inside the light box body, and one side face of the light box body is provided with a switch of the LED lamps. The modified Young modulus experimental instrument adopts the lamp-box-shaped ruler with a backlight, and therefore an observed image of the ruler is bright and clear, scales on the ruler are easy to read, and accurate and high-quality experiments can be ensured. The permanent magnet assembled on the optical lever can effectively solve the problem that the optical lever is prone to falling onto the ground and damage due to an unstable setting.
Description
Technical field
The utility model relates to the teaching physical experiment apparatus, is specifically related to a kind of improved Young modulus experimental apparatus.
Background technology
Solid material elastic deformation ability is described with this important physical amount of Young's modulus of elasticity.The Young modulus experimental apparatus is widely used a kind of experimental apparatus in the college physics teaching; It utilizes optical lever to amplify micro-displacement wiry; Through moving of scale picture in the level crossing of telescope observation optical lever, through calculating the actual displacement of steel wire.In experimentation, the clear reflection image of observing scale is the necessary condition that guarantees the experiment quality from level crossing.The scale of existing Young modulus experimental apparatus receives the influence of indoor light environment bigger, and scale label is difficult for reading, the accurate completion that is not easy to test.In addition; The optical lever of existing Young modulus experimental apparatus is to be placed on the upper surface of platform and tinsel chuck through the tip of three legs; And, because optical lever is that the center is in the typical unstable structure on the carrying plane edge line, any support body microseism or slightly touching to optical lever; The capital causes optical lever born and damage, and particularly very easily causes the cracked of level crossing.
Summary of the invention
The purpose of the utility model is to the problems referred to above; A kind of improved Young modulus experimental apparatus is provided; The scale of this improved Young modulus experimental apparatus possesses lighting source; Thereby can effectively reduce the influence that the indoor light environment is observed scale, make observed scale, guarantee the accurate high-quality completion of experiment as limpid in sight.
The purpose of the utility model also is to solve the optical lever instability, shaken or touch the born easily problem that causes optical lever to damage.
The technical scheme of the utility model technical solution problem is: a kind of improved Young modulus experimental apparatus; It includes chi and reads frame and tinsel hanger bracket; Said chi reads to be equipped with on the frame telescope and scale; Be equipped with platform on the said tinsel hanger bracket, this is provided with optical lever above platform, and the tinsel of suspension is equipped with tinsel chuck and weight tray; Described scale is the lamp box type scale; This lamp box type scale is made up of with the transparent panel graduated scale that is arranged on this lamp box front the pencil-shape lamp casing of Built-in light light source, and described lamp source is formed by being arranged on row's LED lamp of one in the lamp box and battery, and a side of said lamp box is provided with the LED lamp switch.
The technical scheme of the utility model also comprises: on the cross bar of said optical lever, be equipped with permanent magnet.
The beneficial effect of the utility model is:
1, adopts the lamp box type scale of internal illumination light source, make observed scale, be convenient to read accurately scale label, guarantee the accurate high-quality completion of experiment as limpid in sight.
2, adopt a row to place the interior LED lamp of lamp box as the scale back light, graticule light is even, and light is soft, and energy consumption is low.
3, adopt internal battery as the Illuminative for sign power supply, power configuration is simple, makes things convenient for using and operating of experimental apparatus.
4, through on the cross bar of optical lever, permanent magnet being installed; Make optical lever possess magnetic and attach function; Thereby effectively strengthen the stability that optical lever is placed, avoid receiving the generation of touching the born phenomenon of optical lever that causes, guarantee the security that the Young modulus experimental apparatus uses by support body vibrations or optical lever.
Description of drawings
Fig. 1 is this improved Young modulus experimental apparatus structural representation;
Fig. 2 is the lamp box type scale structure synoptic diagram of this improved Young modulus experimental apparatus;
Fig. 3 is the employed magnet structure front view of this improved Young modulus experimental apparatus;
Fig. 4 is the left view of Fig. 3.
Embodiment
Describe in conjunction with the embodiment of accompanying drawing the utility model.
Like accompanying drawing 1, this improved Young modulus experimental apparatus has a chi and reads a frame 1 and a tinsel hanger bracket 2.Chi is read frame 1 and mainly is made up of a column and the disc-shaped base that is arranged on this column lower end.Tinsel hanger bracket 2 has two columns that laterally arrange, and two columns upper ends is provided with a crossbeam, and the lower end of two columns is provided with a discoidal column bearing, is provided with the leg of three-jaw type below this column bearing, is respectively fitted with leg adjustment screw on each leg.Telescope 3 is installed in the side that chi is read frame 1 column, and scale 4 is installed in the opposite side that chi is read frame 1.The platform 5 that the centre is provided with the perforation of tinsel chuck is installed on two parallel columns of tinsel hanger bracket 2 through a pair of pilot hole, and is fixed on the middle part of tinsel hanger bracket 2 through a pair of holding screw that cooperates with two columns respectively.The upper end of tinsel 7 is connected on the crossbeam of tinsel hanger bracket 2, and the lower end of tinsel 7 connects a weight tray 9, and tinsel chuck 8 places in the tinsel chuck perforation of platform 5, and will clamp through the tinsel 7 at its center.Tinsel chuck 8 can move up and down in the perforation of the tinsel chuck on the platform 5, and the upper surface of the tinsel chuck 8 that assembles and the upper table surface of platform 5 are in same surface level basically.Two forward foot in a step of optical lever 6 place on the table top of platform 5, and near the leading edge of platform 5, the rear foot of optical lever 6 places on the upper surface of tinsel chuck 8, and near tinsel 7.Position near the rear foot on the cross bar of optical lever 6 is provided with permanent magnet 10.
Like accompanying drawing 2, the scale 4 of the utility model is the lamp box type scale, and this lamp box type scale is made up of with the transparent panel graduated scale 12 that is arranged on lamp box 11 fronts the pencil-shape lamp casing 11 of Built-in light light source.During practical implementation, offer a strip in the middle of the preceding case panel of lamp box 11 vertical mouthful, the scale mark on the transparent panel graduated scale 12 vertically be provided with also with the lamp box front panel on vertical mouthful corresponding.The Built-in light light source of the utility model is arranged LED lamp 13 by one on the circuit board that is installed in the lamp box and is arranged on the joint of two in lamp box No.5 cell 14 and forms.One side of lamp box 11 is provided with LED lamp switch 15.Each LED lamp 13 adopts parallel connection to be electrically connected.Battery 14 is electrically connected in series with LED lamp switch 15.
Like accompanying drawing 3, accompanying drawing 4, the permanent magnet 10 of the utility model is fit to be arranged to cirque structure, installs with the cross bar of optical lever 6 through center pit to cooperate installation.Permanent magnet 10 is a Nd-Fe-B permanent magnet.
Claims (2)
1. improved Young modulus experimental apparatus; Include chi and read frame (1) and tinsel hanger bracket (2); Chi reads to be equipped with on the frame (1) telescope (3) and scale (4); Be equipped with platform (5) on the tinsel hanger bracket (2), be provided with optical lever (6) above the platform (5), the tinsel of suspension (7) is equipped with tinsel chuck (8) and weight tray (9); It is characterized in that: described scale (4) is the lamp box type scale; This lamp box type scale is made up of the pencil-shape lamp casing (11) of Built-in light light source and the transparent panel graduated scale (12) that is arranged on this lamp box (11) front, and described lamp source is by placing row's LED lamp (13) and battery (14) in the lamp box (11) to form, and a side of said lamp box (11) is provided with LED lamp switch (15).
2. improved Young modulus experimental apparatus according to claim 1 is characterized in that: on the cross bar of said optical lever (6), be equipped with permanent magnet (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202209662U CN202562816U (en) | 2012-05-17 | 2012-05-17 | Modified Young modulus experimental instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202209662U CN202562816U (en) | 2012-05-17 | 2012-05-17 | Modified Young modulus experimental instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202562816U true CN202562816U (en) | 2012-11-28 |
Family
ID=47212461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202209662U Expired - Fee Related CN202562816U (en) | 2012-05-17 | 2012-05-17 | Modified Young modulus experimental instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202562816U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018556A (en) * | 2016-06-17 | 2016-10-12 | 田凯 | Simple harmonic oscillation based experimental device and method for measuring Young's modulus with beam bending method |
| CN106053268A (en) * | 2016-05-10 | 2016-10-26 | 田凯 | Experiment device and method for measuring metal wire Young modulus based on simple harmonic vibration |
| CN106053605A (en) * | 2016-05-07 | 2016-10-26 | 田凯 | Experiment device and method for measuring Young modulus of metal wire based on resonance principle |
| CN106092790A (en) * | 2016-06-17 | 2016-11-09 | 田凯 | Beam deflection method based on resonance principle surveys experimental provision and the method for Young's modulus |
| CN106370083A (en) * | 2015-09-17 | 2017-02-01 | 国网山东省电力公司潍坊供电公司 | Transformer station's safety distance measuring apparatus |
-
2012
- 2012-05-17 CN CN2012202209662U patent/CN202562816U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370083A (en) * | 2015-09-17 | 2017-02-01 | 国网山东省电力公司潍坊供电公司 | Transformer station's safety distance measuring apparatus |
| CN106053605A (en) * | 2016-05-07 | 2016-10-26 | 田凯 | Experiment device and method for measuring Young modulus of metal wire based on resonance principle |
| CN106053268A (en) * | 2016-05-10 | 2016-10-26 | 田凯 | Experiment device and method for measuring metal wire Young modulus based on simple harmonic vibration |
| CN106018556A (en) * | 2016-06-17 | 2016-10-12 | 田凯 | Simple harmonic oscillation based experimental device and method for measuring Young's modulus with beam bending method |
| CN106092790A (en) * | 2016-06-17 | 2016-11-09 | 田凯 | Beam deflection method based on resonance principle surveys experimental provision and the method for Young's modulus |
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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: 20121128 Termination date: 20180517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |