CN102798478A - Gas thermometer - Google Patents
Gas thermometer Download PDFInfo
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- CN102798478A CN102798478A CN2012102839996A CN201210283999A CN102798478A CN 102798478 A CN102798478 A CN 102798478A CN 2012102839996 A CN2012102839996 A CN 2012102839996A CN 201210283999 A CN201210283999 A CN 201210283999A CN 102798478 A CN102798478 A CN 102798478A
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- gas
- temperature
- thin skin
- storage ball
- thermometer
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Abstract
The invention relates to a temperature testing device, in particular to a gas thermometer, which has a wide measuring range and can measure the temperature of an object in a high-precision and high-speed manner. The gas thermometer comprises a temperature measuring part and a temperature indicating part, wherein a gas storage ball is arranged on the temperature measuring part; the gas storage ball is connected with a gas-guide tube; an elastic force application device is arranged on the gas-guide tube; the top end of the elastic force application device is wrapped with an interlayer thin skin; an elastic force application object is arranged inside the interlayer thin skin; the temperature indicating part comprises a dial scale, a fixed tray and a rotating bar; the rotating bar is connected with the gas storage ball; a laser is installed on the rotating bar; the rotating bar is connected with the interlayer thin skin through a magnetic sheet; and a fixed rotation point is arranged at the tail end of the rotating bar. The temperature testing device can measure the temperature of the object in a high-speed and high-precision manner.
Description
Technical field
The present invention relates to a kind of temperature test device, relate in particular to a kind of measurement range big, can high precision, the thermometer of Measuring Object temperature fast.
Background technology
Known thermometer mostly is to charge into liquid in the inside of thermometer, reaches the purpose of displays temperature through expanding with heat and contract with cold of liquid.But common liquid-filled thermometer reliable measuring temperature range is less, and the up-down of temperature is relatively slow, when experiment, often influences the accuracy of experiment.In addition, the precision of common liquid-filled thermometer can only reach the 0.1K level, when needs high-precision temperature data, will bring inconvenience.Though electronic thermometer is also arranged in the prior art, and electronic thermometer exists the price height, problem such as serviceable life is short is not suitable for average family and uses.Therefore design a kind of novel thermometer, overcoming existing thermometer, effectively to measure temperature range less, and thermometric speed is slower, and the shortcoming that the measuring accuracy of thermometer is not high is in demand.
Summary of the invention
The technical matters that the present invention solves is: a kind of technical scheme is provided, according to the thermometer of this technical scheme design, can not only solve effective measurement temperature range less shortcoming, and can improve sensitivity and the precision that thermometer is measured object temperature.
The technical scheme that the present invention adopted is: a kind of gas thermometer, comprise temperature measurement fraction and temperature indicating part, and the gas storage ball is arranged on the said temperature measurement fraction; On said gas storage ball, be connected with wireway, on said wireway, be provided with elasticity and give power apparatus, said elasticity is surrounded by the interlayer thin skin for the power apparatus top; Elasticity is housed in the said interlayer thin skin gives the power thing; During temperature variation, the interlayer thin skin can correspondingly move, and said temperature indicating partly comprises index dial, shaft collar, is connected the dwang on the gas storage ball; On the said dwang laser instrument is installed; The light that is penetrated on the said laser instrument impinges upon on the said index dial, and said dwang links to each other through magnetic sheet with said interlayer thin skin, and said dwang end is provided with fixed rotation point; Said dwang rotates around run-on point, can make the laser instrument on the said dwang shine the corresponding scale value of said index dial when measuring different temperatures.
As a kind of optimal way wireway is that resilient material is made.
Principle of work of the present invention is: utilize expanding with heat and contract with cold of gas, promptly the PVT state equation of real gas calculates the amount of the expansion of gas under the different temperatures.Read because the amount that temperature variation causes gas volume to change according to the relation between temperature T and the volume V, just can be known the temperature of the object of surveying.Because the amount of internal tank gas is a definite value, according to real gas state equation: PV=ZNRT, P is the pressure of ideal gas; V is the volume of ideal gas; R is an ideal gas constant; T is the absolute temperature of ideal gas; Z is the real gas compressibility factor; N is the amount of substance of gas in this thermometer gas storage ball.After thermometer had been processed, N was definite value, and R also is a definite value, so PV and ZT are directly proportional.And in this utility model, P and V have linear relationship, know that thermometer all has a corresponding V value under each temperature of confirming, reach the purpose of Measuring Object temperature through the measurement to volume V value so each corresponding P has to go up according to this.Because the effect of expanding with heat and contract with cold of gas so the measuring accuracy of gaseous state thermometer is far longer than the measuring accuracy of liquid-filled thermometer, and is utilized subzero gaseous states such as nitrogen and hydrogen much larger than gas, can improve the measurement range of thermometer greatly.The expansion of the utility model thermometer internal gas can drive the motion of its inner thin skin, and the thin skin motion drives the motion of bar thereupon.Laser instrument is arranged on bar, utilize laser instrument with spot projection to index dial.Knowledge according to similar triangles can know that the angle that bar turns over is identical with the angle that luminous point turns over.Can come to improve the precision of gas thermometer like this through laser instrument on the bar through a step to the projection of index dial.
The invention has the beneficial effects as follows, can reach higher range through the expanding with heat and contract with cold of gas, the thermometric purpose of degree of precision, and the specific heat of gas is less, can reach thermal equilibrium faster, thus can measure faster.Through the projection of laser instrument on index dial, reach the purpose of further raising gas thermometer precision.
Description of drawings
Fig. 1 temperature indicating part of the present invention synoptic diagram.
Fig. 2 temperature measurement fraction synoptic diagram of the present invention.
Fig. 3 dwang synoptic diagram of the present invention.
Wherein: 1, shaft collar, 2, index dial, 3, light, 4, dwang, 5, fixed rotation point, 6, elasticity gives power apparatus, 7, wireway, 8, the gas storage ball, 9, magnetic sheet, 10, the interlayer thin skin, 11, elasticity gives the power thing, 12, the laser projections point, 13, laser instrument.
Embodiment
Like Fig. 1, shown in Figure 2, each parts on it are fixed through shaft collar (1).When measuring temperature, pressure can change in the wireway (7), and its pressure changes will cause that elasticity gives the variation of power apparatus (6) upward pressure.When both sides pressure was unequal, dwang (4) rotated around fixed rotation point (5), and the pressure up to both sides equates.Each wireway (7) is gone up corresponding pressure all can be had and the state of reaching stress balance for power apparatus (6), promptly static state.When static; The light (3) that laser instrument (13) on the dwang (4) is got just shines corresponding scale on index dial (2); Can know that by similar triangle theory when light (3) projected to index dial (2), its measuring accuracy will proportionally improve.
Be placed into gas storage ball (8) in the object that needs the measurement temperature, gas wherein is because expanding with heat and contract with cold of gas will cause inner air pressure change.Can know that according to PV=ZNRT P=ZNRT/V is so gas is to the pressure F1=ZNRTS/V (S is the area of thin skin) of interlayer thin skin (10).This moment, elasticity will produce to retroaction the power F2 of an identical size for power object (11) for the elasticity in the power apparatus (6); F2=ZNRTS, power object (11) is stressed in its reach to satisfy Hooke's law F2=KL (K is a deformation length for elasticity coefficient L) with deformation and elasticity is given.So, KL=ZNRTS/V is arranged this moment.Because wireway (7) volume of gas storage ball (8) relatively can be ignored, so V equals the volume of gas storage ball, is definite value, so L=ZNRT/VK promptly can have a corresponding L under each temperature.
The mobile of interlayer thin skin (10) can drive moving of magnetic sheet (9); Magnetic sheet (9) links to each other with dwang (4); Thereby planar laser in the drive (13) rotates; The light (3) that laser instrument (13) is got is just gone up at index dial (2) and is moved, thereby on index dial (2), can read corresponding reading through reading laser projections point (12).
Claims (2)
1. a gas thermometer comprises temperature measurement fraction and temperature indicating part, it is characterized in that: the gas storage ball is arranged on the said temperature measurement fraction; On said gas storage ball, be connected with wireway; On said wireway, be provided with elasticity and give power apparatus, said elasticity is surrounded by the interlayer thin skin for the power apparatus top, elasticity is housed in the said interlayer thin skin gives the power thing; Said temperature indicating partly comprises index dial, shaft collar, is connected the dwang on the gas storage ball; On the said dwang laser instrument is installed, said dwang links to each other through magnetic sheet with said interlayer thin skin, and said dwang end is provided with fixed rotation point.
2. a kind of gas thermometer according to claim 1 is characterized in that: described wireway is that resilient material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102839996A CN102798478A (en) | 2012-08-10 | 2012-08-10 | Gas thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102839996A CN102798478A (en) | 2012-08-10 | 2012-08-10 | Gas thermometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102798478A true CN102798478A (en) | 2012-11-28 |
Family
ID=47197665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102839996A Pending CN102798478A (en) | 2012-08-10 | 2012-08-10 | Gas thermometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102798478A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674319A (en) * | 2013-12-11 | 2014-03-26 | 昆明理工大学 | Gas pressure type optical fiber Bragg grating temperature sensor and application method thereof |
| CN105486421B (en) * | 2016-01-28 | 2019-02-12 | 苏州莱测检测科技有限公司 | A kind of new gas thermometer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3992944A (en) * | 1974-12-23 | 1976-11-23 | Texaco Inc. | Adsorption type gas-filled thermometer |
| JPS57148220A (en) * | 1981-03-10 | 1982-09-13 | Mayekawa Mfg Co Ltd | Metal pipe type average temperature indicator utilizing pressure in pipe |
| CN2306495Y (en) * | 1997-09-11 | 1999-02-03 | 华军 | Bimetallic multi-turn number spring pipe |
| CN101133307A (en) * | 2006-03-13 | 2008-02-27 | 陈东兵 | Over-temperature alarm display device |
| CN201387361Y (en) * | 2009-02-12 | 2010-01-20 | 潘德洪 | Isobaric gas thermometer |
| CN201449294U (en) * | 2009-06-03 | 2010-05-05 | 彭培新 | Gas pressure type temperature meter |
| CN102322840A (en) * | 2011-09-06 | 2012-01-18 | 杭州电子科技大学 | Detector of optical radiation angle sensor |
| CN202814578U (en) * | 2012-08-10 | 2013-03-20 | 毛陈 | Gas thermometer |
-
2012
- 2012-08-10 CN CN2012102839996A patent/CN102798478A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3992944A (en) * | 1974-12-23 | 1976-11-23 | Texaco Inc. | Adsorption type gas-filled thermometer |
| JPS57148220A (en) * | 1981-03-10 | 1982-09-13 | Mayekawa Mfg Co Ltd | Metal pipe type average temperature indicator utilizing pressure in pipe |
| CN2306495Y (en) * | 1997-09-11 | 1999-02-03 | 华军 | Bimetallic multi-turn number spring pipe |
| CN101133307A (en) * | 2006-03-13 | 2008-02-27 | 陈东兵 | Over-temperature alarm display device |
| CN201387361Y (en) * | 2009-02-12 | 2010-01-20 | 潘德洪 | Isobaric gas thermometer |
| CN201449294U (en) * | 2009-06-03 | 2010-05-05 | 彭培新 | Gas pressure type temperature meter |
| CN102322840A (en) * | 2011-09-06 | 2012-01-18 | 杭州电子科技大学 | Detector of optical radiation angle sensor |
| CN202814578U (en) * | 2012-08-10 | 2013-03-20 | 毛陈 | Gas thermometer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674319A (en) * | 2013-12-11 | 2014-03-26 | 昆明理工大学 | Gas pressure type optical fiber Bragg grating temperature sensor and application method thereof |
| CN103674319B (en) * | 2013-12-11 | 2016-08-17 | 昆明理工大学 | A kind of gas pressure type Fiber Bragg Grating Temperature sensor and using method thereof |
| CN105486421B (en) * | 2016-01-28 | 2019-02-12 | 苏州莱测检测科技有限公司 | A kind of new gas thermometer |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121128 |