CN101393147A - Metal linear expansion coefficient measuring apparatus - Google Patents
Metal linear expansion coefficient measuring apparatus Download PDFInfo
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- CN101393147A CN101393147A CNA2007100533186A CN200710053318A CN101393147A CN 101393147 A CN101393147 A CN 101393147A CN A2007100533186 A CNA2007100533186 A CN A2007100533186A CN 200710053318 A CN200710053318 A CN 200710053318A CN 101393147 A CN101393147 A CN 101393147A
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- container
- metal
- measuring apparatus
- expansion coefficient
- linear expansion
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Abstract
The invention provides a linear swelling coefficient measuring apparatus for metals. The upper part of a bracket of the measuring apparatus is provided with a displacement sensor and a micrometer head which correspond up and down, while the corresponding lower part is provided with a container which can be heated; when used, the container can be filled with water which can be heated, a metal to be detected is placed in the middle of the container vertically, and the upper part of the metal is contacted with the displacement sensor; the container is provided with a temperature sensor connected with a digital thermometer through a conducting wire, and the displacement sensor is provided with the conducting wire connected with a digital voltmeter. The linear swelling coefficient measuring apparatus for the metals can be applied to measuring metallic swelling coefficient in manufacture and building industries through the linear swelling coefficient of the metal measured by the digital thermometer and the digital voltmeter after the metal to be detected is placed in the container and heated by water.
Description
Technical field
The present invention relates to a kind of instrument of calculating the expansion of metal coefficient, a kind of specifically metal linear expansion coefficient measuring apparatus.
Background technology
At present, known metal linear expansion coefficient measuring apparatus structure by Telescope, optical lever, have scale and be fixed on the Telescope on the support, metal bar to be measured and support, thermometer and well heater etc. and form.When measuring, when metal bar to be measured was heated, metal bar to be measured begin the to expand angle of the level crossing that drives coupled optical lever changed.The observer observes the variation of ruler high scale from Telescope, read the variation of relevant temperature again from mercury thermometer, by formula: the variable quantity of the variable quantity/metal temperature of metal linear expansion coefficient=metal length just can draw metal linear expansion coefficient.But this instrument cost height, heaviness and take up room greatlyyer need the volume of testing sample bigger during measurement, be not easy to measure precious metal; And operation inconvenience, generally need a people to read the registration of thermometer, another reads the variation of ruler scale in the yardstick telescope.
Summary of the invention
The object of the present invention is to provide a kind of metal linear expansion coefficient measuring apparatus, can calculate the linear expansion coefficient of metal very convenient, efficiently.
The container that the present invention includes digital thermometer and digital voltmeter and can heat, the technical scheme that is adopted is: two corresponding displacement transducers and micrometer head are equipped with up and down in the support of measuring instrument top, Dui Ying below is equipped with the container that can heat with it, this container in use, can pack into and can add warm water, and metal to be measured vertically is placed on the centre of container, touch mutually with displacement transducer the top, temperature sensor is housed in the described container is connected with digital thermometer by lead, displacement transducer is provided with lead and links to each other with digital voltmeter.
The invention has the beneficial effects as follows: can calculate the coefficient that metal linear expands fast, easily, cheap, volume is little, easy to operate, can be used for of the measuring and calculating of fields such as manufacturing industry and building industry to metal linear expansion coefficient.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Accompanying drawing is a structural representation of the present invention.
Among the figure: 1, support, 2, displacement transducer, 3, micrometer head, 4, temperature sensor, 5, digital thermometer, 6, digital voltmeter, 7, container, 8, water, 9, lead, 10, metal to be measured.
Embodiment
Among the figure: two corresponding displacement transducers 2 and micrometer head 3 are equipped with up and down in support 1 top of measuring instrument, Dui Ying below is equipped with the container that can heat 7 with it, this container 7 in use, can pack into and can add warm water 8, and metal 10 to be measured vertically is placed on the centre of container 7, touch mutually with displacement transducer 2 top, temperature sensor 4 is housed in the described container 7 is connected with digital thermometer 5 by lead 9, and displacement transducer 2 is provided with lead 9 and links to each other with digital voltmeter 6.
When the present invention uses, at first displacement sensing is calibrated, drawn the function of displacement and voltage with micrometer head and digital voltmeter; Then metal bar to be measured vertically is placed in the glass beaker that fills water, its upper section and displacement transducer are close to.The variation of the length of metal bar to be measured will be converted to the variation of voltage by displacement transducer, and the variation of voltage can be read from digital voltmeter; Digital thermometer is measured the variation of temperature of water outlet simultaneously.Because metal bar to be measured is almost all under water, so the temperature of water is identical with the temperature of metal bar to be measured in the glass beaker.At last by formula: the variable quantity of the variable quantity/metal temperature of metal linear expansion coefficient=metal length just can draw metal linear expansion coefficient.
Claims (1)
1, a kind of metal linear expansion coefficient measuring apparatus, comprise digital thermometer (5) and digital voltmeter (6) and the container (7) that can heat, it is characterized in that: two corresponding displacement transducers (2) and micrometer head (3) up and down are equipped with in the support of described measuring instrument (1) top, Dui Ying below is equipped with the container that can heat (7) with it, this container (7) in use, can pack into and can add warm water (8), and metal to be measured (10) vertically is placed on the centre of container (7), touch mutually with displacement transducer (2) top, temperature sensor (4) is housed in the described container (7) is connected with digital thermometer (5) by lead (9), displacement transducer (2) is provided with lead (9) and links to each other with digital voltmeter (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100533186A CN101393147A (en) | 2007-09-20 | 2007-09-20 | Metal linear expansion coefficient measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100533186A CN101393147A (en) | 2007-09-20 | 2007-09-20 | Metal linear expansion coefficient measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101393147A true CN101393147A (en) | 2009-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100533186A Pending CN101393147A (en) | 2007-09-20 | 2007-09-20 | Metal linear expansion coefficient measuring apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN101393147A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253073A (en) * | 2011-05-31 | 2011-11-23 | 哈尔滨工业大学 | Device and method for measuring metal linear expansion coefficient by adopting Doppler galvanometer sine modulated multi-beam laser heterodyne |
| CN102253075A (en) * | 2011-05-31 | 2011-11-23 | 哈尔滨工业大学 | Device and method for measuring metal linear expansion coefficient based on multi-beam laser heterodyne second harmonic |
| CN102384966A (en) * | 2010-09-03 | 2012-03-21 | 毕宏峰 | High-temperature high-pressure linear expansion measuring instrument |
| CN102495099A (en) * | 2011-12-16 | 2012-06-13 | 西南大学 | Measuring system of nanometer precision metal linear expansion coefficient |
| CN103235002A (en) * | 2013-04-02 | 2013-08-07 | 中国科学院武汉岩土力学研究所 | Indoor testing apparatus for thermal expansion coefficient of rock sample |
| CN104251871A (en) * | 2013-06-27 | 2014-12-31 | 株式会社三丰 | Temperature-controlled bath |
| CN105116005A (en) * | 2015-03-19 | 2015-12-02 | 姚小兵 | Metal wire expansion coefficient determination apparatus for university physics teaching |
| CN107703180A (en) * | 2017-10-23 | 2018-02-16 | 中国电建集团成都勘测设计研究院有限公司 | Organic patching material apparatus for measuring linear expansion coefficient |
| CN107764854A (en) * | 2017-10-25 | 2018-03-06 | 汤庆佳 | A kind of Temperature Control Type linear expansion coefficient measuring apparatus |
| CN107843176A (en) * | 2017-12-07 | 2018-03-27 | 陕西电器研究所 | A kind of calibrating installation for solid volume expansion gauge |
| CN110231362A (en) * | 2019-05-30 | 2019-09-13 | 西安交通大学 | A method of tiny sample thermal expansion coefficient is tested using nanometer mechanics tester |
| CN110988019A (en) * | 2019-12-16 | 2020-04-10 | 中国石油大学(北京) | Testing device and testing method for shale thermal expansion coefficient |
| CN112362691A (en) * | 2020-10-29 | 2021-02-12 | 辽宁科技大学 | Device and method for detecting coal expansion pressure |
-
2007
- 2007-09-20 CN CNA2007100533186A patent/CN101393147A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384966A (en) * | 2010-09-03 | 2012-03-21 | 毕宏峰 | High-temperature high-pressure linear expansion measuring instrument |
| CN102253073A (en) * | 2011-05-31 | 2011-11-23 | 哈尔滨工业大学 | Device and method for measuring metal linear expansion coefficient by adopting Doppler galvanometer sine modulated multi-beam laser heterodyne |
| CN102253075A (en) * | 2011-05-31 | 2011-11-23 | 哈尔滨工业大学 | Device and method for measuring metal linear expansion coefficient based on multi-beam laser heterodyne second harmonic |
| CN102253075B (en) * | 2011-05-31 | 2013-04-24 | 哈尔滨工业大学 | Device and method for measuring metal linear expansion coefficient based on multi-beam laser heterodyne second harmonic |
| CN102495099A (en) * | 2011-12-16 | 2012-06-13 | 西南大学 | Measuring system of nanometer precision metal linear expansion coefficient |
| CN103235002A (en) * | 2013-04-02 | 2013-08-07 | 中国科学院武汉岩土力学研究所 | Indoor testing apparatus for thermal expansion coefficient of rock sample |
| CN104251871A (en) * | 2013-06-27 | 2014-12-31 | 株式会社三丰 | Temperature-controlled bath |
| CN105116005A (en) * | 2015-03-19 | 2015-12-02 | 姚小兵 | Metal wire expansion coefficient determination apparatus for university physics teaching |
| CN107703180A (en) * | 2017-10-23 | 2018-02-16 | 中国电建集团成都勘测设计研究院有限公司 | Organic patching material apparatus for measuring linear expansion coefficient |
| CN107764854A (en) * | 2017-10-25 | 2018-03-06 | 汤庆佳 | A kind of Temperature Control Type linear expansion coefficient measuring apparatus |
| CN107843176A (en) * | 2017-12-07 | 2018-03-27 | 陕西电器研究所 | A kind of calibrating installation for solid volume expansion gauge |
| CN110231362A (en) * | 2019-05-30 | 2019-09-13 | 西安交通大学 | A method of tiny sample thermal expansion coefficient is tested using nanometer mechanics tester |
| CN110988019A (en) * | 2019-12-16 | 2020-04-10 | 中国石油大学(北京) | Testing device and testing method for shale thermal expansion coefficient |
| CN112362691A (en) * | 2020-10-29 | 2021-02-12 | 辽宁科技大学 | Device and method for detecting coal expansion pressure |
| CN112362691B (en) * | 2020-10-29 | 2024-02-13 | 辽宁科技大学 | Device and method for detecting coal expansion pressure |
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Open date: 20090325 |