CN101620052A - Young's elastic modulus tester with vernier depth gauge - Google Patents
Young's elastic modulus tester with vernier depth gauge Download PDFInfo
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- CN101620052A CN101620052A CN200910060160A CN200910060160A CN101620052A CN 101620052 A CN101620052 A CN 101620052A CN 200910060160 A CN200910060160 A CN 200910060160A CN 200910060160 A CN200910060160 A CN 200910060160A CN 101620052 A CN101620052 A CN 101620052A
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- steel wire
- depth gauge
- elastic modulus
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Abstract
The invention relates to a Young's elastic modulus tester with a vernier depth gauge. In the existing Young's elastic modulus instrument for measuring a steel wire by a pulling method, an original optical lever system is cancelled, and the steel wire and a main scale of the vernier depth gauge are fixed together by a dual-purpose movable clamping head. An auxiliary scale of the vernier depth gauge is fixed on a workbench, the upper end of the steel wire is fixed on an upper beam of a frame of the Young's elastic modulus tester, while the lower end is connected with a hook tray, wherein weights can be increased and reduced on the hook tray so as to change pulling force. A testing person increases and reduces the weights to change the pulling force, and the steel wire is stretched along with the changed pulling force; readings on the vernier depth gauge are changed, and a difference value of the readings is the stretching quantity of the steel wire, thus a small variable quantity of the steel wire length being difficult to measure in a process of measuring a Young's elastic modulus by a stretching method is accurately measured through the vernier depth gauge. Other physical quantities required by calculating the Young's elastic modulus can be measured according to a conventional method.
Description
Affiliated field
The present invention relates to a kind of pulling method young elastic modulus detection device.
Background technology
Young's modulus of elasticity is a very important material property, the Young's modulus of elasticity of surveying steel wire with pulling method is an important classical physics experiment, the Young's modulus of elasticity of invar silk is very big, so the stroke of steel wire is very little in elastic range, be difficult to measure with conventional method and dimensional measuring instrument, the general now small stroke that adopts optical lever to amplify steel wire, thereby measure the Young's modulus of elasticity of steel wire, survey in the debug process of Young's modulus of elasticity at the optical lever pulling method, need the scale in the coarse adjustment telescope optic axis alignment surface catoptron to resemble, transfer eyepiece again, objective focal length, finding clearly from telescope, scale resembles, this adjustment process is very complicated, many testers feel difficulty deeply, and often can not finishing for a long time aims at the mark and access clear scale resembles, thereby can not normally finish this time experimental duties, the scale minimum scale is 1mm only simultaneously, makes measuring accuracy not high.
Summary of the invention
Survey complicated operation in the steel wire Young's modulus of elasticity process in order to solve the optical lever pulling method, the problem that measuring accuracy is not high, the present invention has designed a kind of Young's elastic modulus tester with vernier depth gauge, this instrument is abandoned optical lever system, directly measure the stroke of steel wire in the drawing process with vernier depth gauge, make operating process simplify greatly, because of vernier depth gauge can be measured length value more than the 0.02mm, thus the measuring accuracy of instrument of the present invention to survey Young's modulus of elasticity than the optical lever pulling method of band scale much higher.
The present invention solves optical lever pulling method steel wire young's elastic modulus tester complicated operation, the technical scheme of problems such as measuring accuracy is not high is, survey the original optical lever system of cancellation in the steel wire Young's modulus of elasticity instrument at existing pulling method, with a dual-purpose active chuck steel wire and vernier depth gauge main scale are fixed together, the secondary chi of vernier depth gauge is fixed on the worktable, the steel wire upper end is fixed on the entablature of young's elastic modulus tester framework, the lower end links a hook pallet, can add and subtract counterweight on the hook pallet to change pulling force, the tester adds and subtracts weights and changes pulling force, steel wire produces flexible thereupon, drive dual-purpose active chuck motion, dual-purpose active chuck is being with the motion of vernier depth gauge main scale again, reading on the vernier depth gauge changes thereupon, its difference is the stroke of steel wire, so just pulling method is surveyed the steel wire length subtle change amount that is difficult to measure in the Young's modulus of elasticity process and has accurately measured by vernier depth gauge.Calculating other required physical quantitys of Young's modulus of elasticity can measure according to conventional methods, does not repeat them here.
The invention has the beneficial effects as follows and cancelled optical lever system, thoroughly exempted the difficulty that the optical lever imaging system is regulated, directly with vernier depth gauge measuring steel wire elongation, because the minimum calibration of vernier depth gauge is 0.02mm, thereby its measuring accuracy is that the scale of optical lever system of 1mm is much higher more than minimum calibration.
Description of drawings is described further the present invention and embodiment below in conjunction with accompanying drawing.
Among the figure, 1, counterweight, 2, the hook pallet, 3, dual-purpose active chuck, 4, worktable, 5, gib screw, 6, the secondary chi of vernier depth gauge, 7, the vernier depth gauge main scale, 8, column, 9, steel wire, 10, entablature, 11, the steel wire trip bolt, 12, steel wire briquetting, 13, worktable gathering sill, 14, vernier depth gauge main scale trip bolt, 15, base.
Embodiment
In Fig. 1, the young's elastic modulus tester framework is made of base 15, column 8, entablature 10 and worktable 4, steel wire 9 upper ends are fixed on the entablature 10 of young's elastic modulus tester framework, lower end coupling hook pallet 2, can add and subtract counterweight 1 on the hook pallet 2, steel wire trip bolt 11 and steel wire briquetting 12 are fixed on steel wire 9 on the active chuck 3, vernier depth gauge main scale trip bolt 14 also is fixed on vernier depth gauge main scale 7 on the active chuck 3, and the secondary chi 6 of vernier depth gauge is fixed on the worktable 4.The plus-minus counterweight, steel wire produces length variations because of suffered tension variations, cause that dual-purpose active chuck produces displacement, thereby cause that the vernier depth gauge main scale produces identical displacement, this displacement is exactly the length variations amount of steel wire, measure other respective physical amounts more according to a conventional method, just can obtain the Young's modulus of elasticity of steel wire.
Claims (3)
1. Young's elastic modulus tester with vernier depth gauge, it is characterized in that surveying the original optical lever system of cancellation in the steel wire Young's modulus of elasticity instrument at existing pulling method, with a dual-purpose active chuck steel wire and vernier depth gauge main scale are fixed together, the secondary chi of vernier depth gauge is fixed on the worktable, the steel wire upper end is fixed on the entablature of young's elastic modulus tester framework, the lower end links a hook pallet, can add and subtract counterweight on the hook pallet to change pulling force.
2. Young's elastic modulus tester with vernier depth gauge according to claim 1 is characterized in that the young's elastic modulus tester framework is made up of base, worktable, entablature and column.
3. Young's elastic modulus tester with vernier depth gauge according to claim 1, it is characterized in that adding and subtracting counterweight, steel wire produces length variations because of suffered tension variations, cause that dual-purpose active chuck produces displacement, thereby cause that the vernier depth gauge main scale produces identical displacement, this displacement is exactly the length variations amount of steel wire, measures other respective physical amounts more according to a conventional method, just can obtain the Young's modulus of elasticity of steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910060160A CN101620052A (en) | 2009-07-29 | 2009-07-29 | Young's elastic modulus tester with vernier depth gauge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910060160A CN101620052A (en) | 2009-07-29 | 2009-07-29 | Young's elastic modulus tester with vernier depth gauge |
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| CN101620052A true CN101620052A (en) | 2010-01-06 |
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| CN200910060160A Pending CN101620052A (en) | 2009-07-29 | 2009-07-29 | Young's elastic modulus tester with vernier depth gauge |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288474A (en) * | 2010-06-17 | 2011-12-21 | 四川大学 | Low-position vertical direct-reading Young modulus instrument manufacture method |
| CN102445387A (en) * | 2010-10-11 | 2012-05-09 | 四川大学 | Young's elasticity modulus Moire fringe measuring instrument |
| CN102538720A (en) * | 2011-12-31 | 2012-07-04 | 宁波市鄞州云帆工程咨询有限公司 | Overflow micro Young modulus measuring instrument |
| CN102564863A (en) * | 2011-12-31 | 2012-07-11 | 宁波市鄞州云帆工程咨询有限公司 | Hydraulic steel wire Young's modulus measuring instrument |
| CN103063198A (en) * | 2012-12-28 | 2013-04-24 | 中国水利水电科学研究院 | Space-time correlation measurement and control system for underwater micro topographic variation |
| CN103063524A (en) * | 2013-01-04 | 2013-04-24 | 江南大学 | Young modulus instrument with thin lower chuck |
| CN103674848A (en) * | 2013-12-09 | 2014-03-26 | 东南大学 | Thin film orientation characteristic detection device and applications thereof |
| CN103712857A (en) * | 2013-12-27 | 2014-04-09 | 滨州医学院 | Intelligent Young modulus measuring instrument |
| CN112782066A (en) * | 2021-02-07 | 2021-05-11 | 贵州省交通规划勘察设计研究院股份有限公司 | Device and method for high-precision measurement of rock weathering rate |
| US11607168B2 (en) | 2016-11-30 | 2023-03-21 | Conopco, Inc. | Method of assessing hair |
-
2009
- 2009-07-29 CN CN200910060160A patent/CN101620052A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288474A (en) * | 2010-06-17 | 2011-12-21 | 四川大学 | Low-position vertical direct-reading Young modulus instrument manufacture method |
| CN102445387A (en) * | 2010-10-11 | 2012-05-09 | 四川大学 | Young's elasticity modulus Moire fringe measuring instrument |
| CN102538720A (en) * | 2011-12-31 | 2012-07-04 | 宁波市鄞州云帆工程咨询有限公司 | Overflow micro Young modulus measuring instrument |
| CN102564863A (en) * | 2011-12-31 | 2012-07-11 | 宁波市鄞州云帆工程咨询有限公司 | Hydraulic steel wire Young's modulus measuring instrument |
| CN103063198B (en) * | 2012-12-28 | 2015-02-25 | 中国水利水电科学研究院 | Space-time correlation measurement and control system for underwater micro topographic variation |
| CN103063198A (en) * | 2012-12-28 | 2013-04-24 | 中国水利水电科学研究院 | Space-time correlation measurement and control system for underwater micro topographic variation |
| CN103063524A (en) * | 2013-01-04 | 2013-04-24 | 江南大学 | Young modulus instrument with thin lower chuck |
| CN103674848A (en) * | 2013-12-09 | 2014-03-26 | 东南大学 | Thin film orientation characteristic detection device and applications thereof |
| CN103674848B (en) * | 2013-12-09 | 2016-04-20 | 东南大学 | A kind of thin film alignment characteristic detection device and application thereof |
| CN103712857A (en) * | 2013-12-27 | 2014-04-09 | 滨州医学院 | Intelligent Young modulus measuring instrument |
| CN103712857B (en) * | 2013-12-27 | 2016-02-10 | 滨州医学院 | Intelligent modulus measurer |
| US11607168B2 (en) | 2016-11-30 | 2023-03-21 | Conopco, Inc. | Method of assessing hair |
| CN112782066A (en) * | 2021-02-07 | 2021-05-11 | 贵州省交通规划勘察设计研究院股份有限公司 | Device and method for high-precision measurement of rock weathering rate |
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Open date: 20100106 |