CN110044518A - A kind of small fixed point container and production method for digital temperature meter calibrating - Google Patents
A kind of small fixed point container and production method for digital temperature meter calibrating Download PDFInfo
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- CN110044518A CN110044518A CN201910392334.0A CN201910392334A CN110044518A CN 110044518 A CN110044518 A CN 110044518A CN 201910392334 A CN201910392334 A CN 201910392334A CN 110044518 A CN110044518 A CN 110044518A
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- Prior art keywords
- fixed point
- thermometer
- container
- container casing
- exhaust tube
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/002—Calibrated temperature sources, temperature standards therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/005—Calibration
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- General Physics & Mathematics (AREA)
- Radiation Pyrometers (AREA)
Abstract
A kind of small fixed point container and production method for digital temperature meter calibrating disclosed by the invention, belongs to thermometer calibration field.The present invention includes container casing, thermometer well, exhaust tube.Container casing is single layer thin-wall construction, and surfaces externally and internally carries out precise polished, reduction thermal contact resistance, is conducted conducive to by the heat of burner hearth to fixed point metal, promotion fixed point metal rapid melting.Thermometer well for guarantee when the metal heated fusing of fixed point, immerse fixed point metal thermometer well will not due to buoyancy upward displacement, influence the calibration of digital thermometer.Thermometer well and container casing form one, reduce difficulty of processing.Exhaust tube upper section tube wall uses hourglass configuration, and thermometer well and container casing form the cylindrical cavity of a U-shaped, and fixed point metal is filled in the cylindrical cavity.The present invention, which can be realized, calibrates digital thermometer, can correct drift and deviation, it is ensured that measurement result is accurate and reliable.
Description
Technical field
The present invention relates to a kind of small fixed point containers and production method for digital temperature meter calibrating, belong to thermometer school
Quasi- field.
Background technique
In middle low-temperature calibration field, mercurial thermometer is counted because having thermometric simple, intuitive and cheap advantage
The measuring mechanism amount of being selected as passes tool and is widely used.However, the glass shell of mercurial thermometer holds in transport, installation, use process
Lead to fragmentation vulnerable to external impacts, volatile toxic metals mercury produces significant damage to environment and personnel safety.
The World Health Organization is appealed, gradually to eliminate mercury clinical thermometer and sphygmomanometer to the year two thousand twenty, realize Medical Devices
It is mercuryless.Europe, the U.S. forbid the import and market circulation of mercury product respectively from 2011,2013, and Chinese conduct
The world's largest mercury output side will face huge outlet predicament.
For these reasons, the new production that the vacancy formed after mercurial thermometer is withdrawn from the market will be calculated as representing by digital temperature
Product are filled up.Although digital thermometer is safer in use, thermometric accuracy also suffers from the influence of extraneous factor, surely
It is qualitative to be under suspicion.From the point of view of measuring angle, in order to ensure measurement result is accurate, need to carry out regular school to digital thermometer
It is quasi-, it is therefore necessary to a kind of small fixed point container is invented, digital thermometer is calibrated, amendment drift and deviation, it is ensured that survey
It is accurate and reliable to measure result.
Summary of the invention
For the calibration requirements of digital thermometer, a kind of small fixed point for digital temperature meter calibrating disclosed by the invention
Container and production method technical problems to be solved are: digital thermometer is calibrated in realization, can correct drift and deviation,
Ensure that measurement result is accurate and reliable.
A kind of small fixed point container for digital temperature meter calibrating disclosed by the invention includes container casing, thermometer
Well, exhaust tube.
Container casing is single layer thin-wall construction, and surfaces externally and internally carries out precise polished, reduces thermal contact resistance, is conducive to burner hearth
Heat conduct to fixed point metal, promote fixed point metal rapid melting.
For thermometer well for guaranteeing when the metal heated fusing of fixed point, the thermometer well for immersing fixed point metal will not be because
Buoyancy and upward displacement, influence the calibration of digital thermometer.Thermometer well and container casing form one, and not being can be only
Movable part is found, difficulty of processing is reduced.
For the envelope of pinching convenient for realizing exhaust tube nozzle after the completion of pumping, exhaust tube upper section tube wall uses hourglass configuration, temperature
Degree meter well and container casing form the cylindrical cavity of a U-shaped, and fixed point metal is filled in the cylindrical cavity.
Preferably, container casing, thermometer well are manufactured using stainless steel material.
A kind of method for production of small fixed point container for digital temperature meter calibrating disclosed by the invention includes following step
It is rapid:
Step 1: machining mode forms container casing, thermometer well, then carries out container casing, thermometer well
Welding forms the cylindrical cavity of a U-shaped, and reserves circular hole at top, prepares for subsequent welding exhaust tube.
Step 2: the fixed point metal of particulate form being reserved from container case top and is launched from circular hole to thermometer well and is held
In the U-shaped cylindrical cavity that device shell is formed.It is reserved at the top of container casing and welds exhaust tube at circular hole.
Step 3: connecting exhaust tube with vacuum pump hose, the intracorporal air of vessel shell is taken away.Hourglass is clamped with hydraulic tongs
Shape structure position, exhaust tube pinch is flat, welded seal then is carried out to the exhaust tube nozzle for pinching flat place with welding gun rapidly.
A kind of working method of small fixed point container for digital temperature meter calibrating disclosed by the invention includes following step
It is rapid:
Step 1: putting container casing into dry-well burner hearth and fixed position, digital thermometer probe is deep into thermometer well
Bottom, then with cap covers fire door with holes.
Step 2: dry-well furnace being set to more than fixed point metal freezing point 5 DEG C~10 DEG C and the heating that heats up, observation is passed through
The reading of digital thermometer, after fixed point metal is completely melt, temperature continues to rise to set temperature and keeps stable.Then will
Dry-well furnace temperature is set in 3 DEG C~5 DEG C of fixed point metal freezing point or less, waits fixed point metal cooled and solidified.
Step 3: in fixed point metal solidification process, digital thermometer probes sense to temperature be a stable temperature
The temperature value of time platform is compared by time platform with the nominal value of fixed point metal freezing point temperature, realizes assessment number
The order of accuarcy of word thermometer measure.
Beneficial effect
1, a kind of small fixed point container for digital temperature meter calibrating disclosed by the invention, thermometer well and container casing
Form one, small in size and firm external force resistance impact.
2, a kind of small fixed point container for digital temperature meter calibrating disclosed by the invention is welded in container top and is evacuated
Pipe, for extracting residual air in container, exhaust tube upper section tube wall uses hourglass configuration, convenient for realizing nozzle after the completion of pumping
Pinch envelope.
3, a kind of small fixed point container for digital temperature meter calibrating disclosed by the invention is welded in container top and is evacuated
Pipe, after the completion of exhaust tube pinches envelope, fixed point metal and outside air in container completely cut off, and avoid oxidation deterioration, are promoted and use the longevity
Life.
4, a kind of small fixed point container for digital temperature meter calibrating disclosed by the invention is welded in container top and is evacuated
Pipe, container use single thin layer shell wall face, greatly reduce thermal resistance, promote temperature correction accuracy.
5, a kind of small fixed point container for digital temperature meter calibrating disclosed by the invention is welded in container top and is evacuated
Pipe, thermometer well and container casing form one, are not the parts for capableing of independent activities, reduce difficulty of processing, thermometer well energy
It is enough to guarantee when the metal heated fusing of fixed point, immerse fixed point metal thermometer well will not due to buoyancy upward displacement, shadow
Ring the calibration of digital thermometer.
Detailed description of the invention
Fig. 1 is small fixed point structure of container schematic diagram in the specific embodiment of the invention.
Specific embodiment
Invention is further described in detail with attached drawing combined with specific embodiments below, but the invention is not limited to tools
Body embodiment.
Embodiment 1:
As shown in Figure 1, a kind of small fixed point container for digital temperature meter calibrating, use disclosed in the present embodiment are stainless
Steel material is manufactured, including container casing 1, thermometer well 2, exhaust tube 3.
Container casing 1 is single layer thin-wall construction, and surfaces externally and internally carries out precise polished, reduces thermal contact resistance, is conducive to furnace
The heat of thorax is conducted to fixed point metal 5, promotes 5 rapid melting of fixed point metal.
Thermometer well 2 immerses the thermometer well 2 of fixed point metal 5 not for guaranteeing when fixed point 5 melted by heat of metal
Meeting upward displacement due to buoyancy, influences the calibration of digital thermometer.Thermometer well 2 and container casing 1 form one, are not
It is capable of the part of independent activities, reduces difficulty of processing.
For the envelope of pinching convenient for realizing 3 nozzle of exhaust tube after the completion of pumping, 3 upper section tube wall of exhaust tube uses hourglass configuration 4,
Thermometer well 2 and container casing 1 form the cylindrical cavity of a U-shaped, and fixed point metal 5 is filled in the cylindrical cavity.
A kind of method for production of the small fixed point container for digital temperature meter calibrating disclosed in the present embodiment includes as follows
Step:
Step 1: machining mode forms container casing 1, thermometer well 2, then welds the two as shown in Figure 1
It connects, and reserves circular hole at top, prepare for subsequent welding exhaust tube 3.
Step 2: by the fixed point metal 5 of particulate form at the top of container casing 1 reserve circular hole from launch to thermometer well 2 with
In the U-shaped cylindrical cavity that container casing 1 is formed.It is reserved at the top of container casing 1 and welds exhaust tube 3 at circular hole.
Step 3: connecting exhaust tube 3 with vacuum pump hose, the air in container casing 1 is taken away.Sand is clamped with hydraulic tongs
Leak 4 position of shape structure, exhaust tube 3 is pinched it is flat, then rapidly with welding gun to pinch flat place nozzle carry out welded seal.
A kind of working method of the small fixed point container for digital temperature meter calibrating disclosed in the present embodiment includes as follows
Step:
Step 1: putting container casing 1 into dry-well burner hearth and fixed position, digital thermometer probe is deep into thermometer
The bottom of well 2, then with cap covers fire door with holes.
Step 2: dry-well furnace being set to more than 5 freezing point of fixed point metal 5 DEG C~10 DEG C and the heating that heats up, observation is passed through
The reading of digital thermometer, after fixed point metal 5 is completely melt, temperature continues to rise to set temperature and keeps stable.Then
Dry-well furnace temperature is set in 3 DEG C~5 DEG C of 5 freezing point of fixed point metal or less, waits 5 cooled and solidified of fixed point metal.
Step 3: in 5 process of setting of fixed point metal, digital thermometer probes sense to temperature be one smoothly temperature
Time platform is spent, the temperature value of platform is compared with the nominal value of 5 freezing point temperature of fixed point metal, can help to assess
The order of accuarcy of digital thermometer measurement.
Although the embodiments of the invention are described in conjunction with the attached drawings, it will be apparent to those skilled in the art that not taking off
Under the premise of from the principle of the invention, several improvement can also be made, these also should be regarded as belonging to the scope of protection of the present invention.
Claims (5)
1. a kind of small fixed point container for digital temperature meter calibrating, it is characterised in that: including container casing (1), thermometer
Well (2), exhaust tube (3)；
Container casing (1) is single layer thin-wall construction, and surfaces externally and internally carries out precise polished, reduces thermal contact resistance, is conducive to burner hearth
Heat conduct to fixed point metal (5), promote fixed point metal (5) rapid melting.
2. a kind of small fixed point container for digital temperature meter calibrating as described in claim 1, it is characterised in that: thermometer
For well (2) for guaranteeing when fixed point metal (5) melted by heat, the thermometer well (2) for immersing fixed point metal (5) will not be because floating
Power and upward displacement, influence the calibration of digital thermometer；Thermometer well (2) and container casing (1) form one.
3. a kind of small fixed point container for digital temperature meter calibrating as claimed in claim 2, it is characterised in that: for convenient for
The envelope of pinching of exhaust tube (3) nozzle is realized after the completion of pumping, exhaust tube (3) upper section tube wall uses hourglass configuration (4), thermometer well
(2) cylindrical cavity of a U-shaped is formed with container casing (1), fixed point metal (5) is filled in the cylindrical cavity.
4. a kind of small fixed point container for digital temperature meter calibrating as claimed in claim 3, it is characterised in that: vessel shell
Body (1), thermometer well (2) are manufactured using stainless steel material.
5. a kind of small fixed point container for digital temperature meter calibrating as claimed in claim 3, it is characterised in that: the side of manufacturing
Method includes the following steps,
Step 1: machining mode forms container casing (1), thermometer well (2), then by container casing (1), thermometer
Well (2) carries out welding and forms the cylindrical cavity of a U-shaped, and reserves circular hole at top, prepares for subsequent welding exhaust tube (3)；
Step 2: the fixed point metal (5) of particulate form is launched from circular hole reserved at the top of container casing (1) to thermometer well (2)
In the U-shaped cylindrical cavity formed with container casing (1).It is reserved at the top of container casing (1) at circular hole and welds exhaust tube (3)；
Step 3: with vacuum pump hose connection exhaust tube (3), the air in container casing (1) being taken away.Sand is clamped with hydraulic tongs
Leak shape structure (4) position, by exhaust tube (3) pinch it is flat, then rapidly with welding gun to pinch flat place exhaust tube (3) nozzle carry out
Welded seal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511686 | 2018-12-11 | ||
| CN2018115116865 | 2018-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110044518A true CN110044518A (en) | 2019-07-23 |
Family
ID=67281724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910392334.0A Pending CN110044518A (en) | 2018-12-11 | 2019-05-13 | A kind of small fixed point container and production method for digital temperature meter calibrating |
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| CN (1) | CN110044518A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887584A (en) * | 2019-11-11 | 2020-03-17 | 德州尧鼎光电科技有限公司 | Miniature water triple-point bottle and manufacturing method thereof |
| CN112665760A (en) * | 2020-11-25 | 2021-04-16 | 中国航空工业集团公司北京长城计量测试技术研究所 | Fixed point container with through temperature measuring hole |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050053114A1 (en) * | 2003-09-04 | 2005-03-10 | Kee Hoon Kang | Fixed point cell for connection with thermometer protecting tube and apparatus for estimating the lifetime of thermometer using the same |
| CN101507906A (en) * | 2009-03-24 | 2009-08-19 | 北京奥维泰科技有限公司 | Pressure filling device and method of molten metal |
| CN201600202U (en) * | 2009-09-11 | 2010-10-06 | 中国计量科学研究院 | Sealing type zinc and tin freezing point container |
| CN103154686A (en) * | 2010-08-31 | 2013-06-12 | 恩德莱斯和豪瑟尔韦泽两合公司 | Method and apparatus for calibrating a thermometer in situ |
| CN105092096A (en) * | 2015-05-05 | 2015-11-25 | 山东省计量科学研究院 | Method and device for temperature calibration by means of benzoic acid freezing point temperature level ground |
-
2019
- 2019-05-13 CN CN201910392334.0A patent/CN110044518A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050053114A1 (en) * | 2003-09-04 | 2005-03-10 | Kee Hoon Kang | Fixed point cell for connection with thermometer protecting tube and apparatus for estimating the lifetime of thermometer using the same |
| CN101507906A (en) * | 2009-03-24 | 2009-08-19 | 北京奥维泰科技有限公司 | Pressure filling device and method of molten metal |
| CN201600202U (en) * | 2009-09-11 | 2010-10-06 | 中国计量科学研究院 | Sealing type zinc and tin freezing point container |
| CN103154686A (en) * | 2010-08-31 | 2013-06-12 | 恩德莱斯和豪瑟尔韦泽两合公司 | Method and apparatus for calibrating a thermometer in situ |
| CN105092096A (en) * | 2015-05-05 | 2015-11-25 | 山东省计量科学研究院 | Method and device for temperature calibration by means of benzoic acid freezing point temperature level ground |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887584A (en) * | 2019-11-11 | 2020-03-17 | 德州尧鼎光电科技有限公司 | Miniature water triple-point bottle and manufacturing method thereof |
| CN110887584B (en) * | 2019-11-11 | 2022-05-10 | 德州尧鼎光电科技有限公司 | Miniature water triple-point bottle and manufacturing method thereof |
| CN112665760A (en) * | 2020-11-25 | 2021-04-16 | 中国航空工业集团公司北京长城计量测试技术研究所 | Fixed point container with through temperature measuring hole |
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Application publication date: 20190723 |