CN211504408U - Water bath black body and infrared thermometer's water bath black body calibrator - Google Patents
Water bath black body and infrared thermometer's water bath black body calibrator Download PDFInfo
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- CN211504408U CN211504408U CN202020332878.6U CN202020332878U CN211504408U CN 211504408 U CN211504408 U CN 211504408U CN 202020332878 U CN202020332878 U CN 202020332878U CN 211504408 U CN211504408 U CN 211504408U
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Abstract
The utility model relates to a check out test set technical field especially relates to a water bath black body calibration instrument of water bath black body and infrared radiation thermoscope. The water bath blackbody includes test portion and the heat conduction post that extends down from the test portion, and the upper surface of test portion has many concentric annular grooves, and the cross-section of annular groove is the V-arrangement, and the contained angle between two cell walls that constitute annular groove is 50 ~ 59. The calibration instrument comprises a water bath barrel, a cover plate, a water bath black body, a liquid circulation module, a circulation pipeline, a heating module and a refrigerating module; the water bath barrel is used for storing a liquid medium, and the liquid circulation module is communicated with the water bath barrel by virtue of a circulation pipeline; the heating module and the refrigerating module are used for heating and refrigerating the liquid medium; the cover plate covers the top of the water bath barrel, the water bath black body is installed on the cover plate and located in the water bath barrel, the cover plate is provided with an opening, and at least part of the test part is exposed from the opening. The water bath black body calibration instrument of the infrared thermometer has high temperature control precision and is less influenced by the environment.
Description
Technical Field
The utility model relates to a check out test set technical field especially relates to a water bath black body calibration instrument of water bath black body and infrared radiation thermoscope.
Background
The infrared thermometers generally include forehead thermometers, ear thermometers, and the like. After a manufacturer finishes the production of the infrared thermometer, a calibration procedure is generally required, and the calibration procedure needs to use a calibration instrument. The calibration instrument in the prior art generally comprises an incubator and a liquid medium arranged in the incubator, wherein the incubator heats the liquid medium to a set temperature, an infrared thermometer is used for measuring the temperature of the liquid medium, and whether the medical thermometer meets the quality requirement is determined by comparing whether the temperature displayed by the infrared thermometer is consistent with the set temperature.
However, the calibration instrument in the prior art has the following problems: in the calibration process of the existing calibration instrument, a temperature measurement object of the infrared thermometer is a liquid medium, the liquid medium is exposed in the environment, and the top layer liquid is in contact with the external environment, so that the situation that the temperatures of different positions in the liquid medium are different easily occurs, namely, the temperature of the temperature measurement object is different from the actually set temperature, and further, the temperature measured by the infrared thermometer is different from the set temperature, and the calibration result is influenced.
For this reason, improvements are required to address the problems existing in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a water bath black body still provides a water bath black body calibration instrument who is provided with the infrared radiation thermometer of this kind of water bath black body, and its temperature control precision is high, and the temperature of its temperature measurement object receives the influence of environment less.
In order to reach one of the above-mentioned purpose, the utility model provides a water bath black body, it includes test portion and follow the test portion is the temperature post that leads that extends down, the upper surface of test portion has many concentric annular grooves, the cross-section of annular groove is the V-arrangement, constitutes contained angle between two cell walls of annular groove is 50 ~ 59.
Further, the angle between the two groove walls constituting the annular groove is 55 °.
Further, the outer surface of the temperature conduction column is provided with temperature conduction fins.
Furthermore, the heat conduction column is in an inverted cone shape, and the heat conduction fins are in a thread shape, an annular shape or a stripe shape.
In order to achieve the second purpose, the utility model provides a water bath black body calibration instrument of an infrared thermometer, which comprises a water bath barrel, a cover plate, a liquid circulation module, a circulation pipeline, a heating module, a refrigeration module and the water bath black body; the water bath barrel is used for storing a liquid medium, and the liquid circulation module is communicated with the water bath barrel by virtue of the circulation pipeline; the heating module and the refrigerating module are respectively used for heating and refrigerating the liquid medium; the cover plate covers the top of the water bath barrel, the water bath black body is located in the water bath barrel, the cover plate is provided with an opening, and at least part of the test part is exposed from the opening.
Furthermore, the water bath barrel is provided with a liquid inlet hole and a liquid outlet hole which are communicated with the circulating pipeline; the liquid inlet hole and the liquid outlet hole have a height difference, and the liquid inlet hole and the liquid outlet hole are arranged to enable a liquid medium to rotate in the water bath barrel.
Further, the liquid inlet hole is connected with a guide pipe positioned in the water bath barrel, and the direction of an outlet of the guide pipe has a tangential component.
Further, the liquid inlet hole is formed in the wall of the water bath barrel, and the central axis of the liquid inlet hole deviates from the central axis of the water bath barrel.
Further, the water bath barrel is cylindrical, the cover plate is in a circular plate shape, the cover plate seals the water bath barrel, a heat insulation layer is arranged on the outer wall of the water bath barrel, and the water bath black body is installed in the middle of the cover plate.
Further, the heating module is an electric heating rod arranged in the water bath barrel, the refrigerating module is a semiconductor refrigerator arranged outside the water bath barrel, and the semiconductor refrigerator refrigerates the circulating pipeline or the liquid medium.
Further, an annular ring is detachably mounted at the opening of the cover plate.
Further, this water bath blackbody calibrator still includes the casing, be provided with three group at least in the casing water bath bucket, apron, water bath blackbody, liquid circulation module, circulating line, heating module and refrigeration module.
The utility model provides a water bath black body, its lead temperature is efficient, and the annular groove that sets up makes this water bath black body have higher infrared emission rate, can more accurately reflect the actual temperature of water bath black body in follow-up calibration. The utility model provides a water bath black body calibrator based on above-mentioned infrared radiation thermometer of water bath black body, the water bath bucket is used for adorning the liquid medium, and the liquid medium is located the water bath bucket that seals, and the degree that the liquid medium is influenced by the environment is little, and makes the liquid medium circulate constantly through the liquid circulation module, and the temperature is unanimous basically everywhere of the liquid medium, makes the temperature of the liquid medium unanimous basically with the temperature that predetermines; the temperature of the water bath black body is basically consistent with that of the liquid medium, and the temperature of the test part is stable and very close to the set temperature; in addition, the arranged annular groove enables the water bath black body to have high infrared emissivity, and the actual temperature of the water bath black body can be more accurately reflected in the subsequent calibration, so that the calibration accuracy is higher. Therefore, compared with the prior art, the water bath black body calibration instrument of the infrared thermometer is high in temperature control precision and is less affected by the environment.
Drawings
FIG. 1 is a schematic structural view of a water bath black body according to the present invention;
FIG. 2 is a schematic view of the structure of the annular groove;
FIG. 3 is a schematic structural view of the water bath black body calibration instrument of the infrared thermometer of the present invention;
FIG. 4 is an exploded view of the water bath tub, cover plate and water bath blackbody;
FIG. 5 is a schematic view of a first alternative construction of the water bath tub;
FIG. 6 is a schematic view of a second alternative construction of the water tub;
FIG. 7 is a schematic sketch of a cut-away structure of the water bath bucket of FIG. 6, wherein the cut-away plane passes through the axis of the liquid inlet hole;
fig. 8 is a schematic structural diagram of the water bath black body calibration instrument of the infrared thermometer of the present invention when the casing is provided.
[ description of reference ]
1-a water bath barrel, 11-a cover plate, 12-a liquid inlet hole, 121-a central axis of the liquid inlet hole, 122-a guide pipe, 13-a liquid outlet hole, 14-a central axis of the water bath barrel and 15-an annular ring;
2-water bath blackbody, 21-temperature conduction column, 22-testing part, 23-temperature conduction fin and 24-annular groove;
3-liquid circulation module, 31-circulation pipeline
4-heating the module;
5-a refrigeration module;
6-shell.
Detailed Description
The present invention will be described in detail with reference to the following specific examples.
In the present application, when directional terms are used, they are used for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the scope of the invention in any way. In the present invention, unless otherwise expressly specified or limited, when terms such as "disposed on," "connected to," or "connected to" are present, these terms are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The utility model provides a water bath blackbody 2, as shown in fig. 1 and fig. 2, it includes test section 22 and the heat conduction post 21 that extends down from test section 22, and test section 22's upper surface has many concentric annular grooves 24, and annular grooves 24's cross-section is the V-arrangement, and the contained angle between two cell walls that constitute annular grooves 24 is 50 ~ 59. It is further preferred that the angle between the two groove walls constituting the annular groove 24 is 55 °.
Based on the structure, the temperature conduction efficiency of the water bath black body 2 is high, the annular groove 24 enables the water bath black body 2 to have high infrared emissivity, and the actual temperature of the water bath black body 2 can be accurately reflected in the subsequent calibration process.
In the present embodiment, the outer surface of the temperature guiding column 21 is provided with a temperature guiding fin 23. Based on the setting of leading warm fin 23, can increase the area of contact of leading warm post 21 and liquid medium, make and lead warm effect better. Preferably, the thermal conductive column 21 is in an inverted cone shape, and the thermal conductive fins 23 are in a screw shape, a ring shape, or a stripe shape. The contact area can also be increased by the arrangement mode of the inverted cone-shaped heat conduction column 21, meanwhile, in the following preferred scheme, the liquid medium in the water bath barrel 1 can be rotated by arranging the liquid inlet hole 12, the heat conduction column 21 is arranged in the inverted cone shape, the heat conduction fins 23 are arranged in the thread shape, the shape of the heat conduction column 21 can be similar to the shape of a vortex, the heat conduction fins 23 are guided by the rotating liquid medium, and the liquid medium in the water bath barrel 1 can rotate more smoothly, so that the heat conduction is facilitated. Of course, other shapes of the heat-conducting fins 23 are also possible, and similar alternatives fall within the scope of the present invention.
The utility model also provides a water bath black body calibration instrument of the infrared thermometer, as shown in figures 3 to 8, which comprises a water bath barrel 1, a cover plate 11, a water bath black body 2, a liquid circulation module 3, a circulation pipeline 31, a heating module 4 and a refrigeration module 5; the water bath barrel 1 is used for storing a liquid medium, and the liquid circulation module 3 is communicated with the water bath barrel 1 by virtue of a circulation pipeline 31; the heating module 4 and the refrigerating module 5 are respectively used for heating and refrigerating the liquid medium; the cover plate 11 covers the top of the water bath barrel 1, the water bath black body 2 is located in the water bath barrel 1, the cover plate 11 is provided with an opening, at least part of the testing part 22 is exposed from the opening, and the exposed part of the testing part 22 is suitable for being tested.
The utility model provides a water bath black body calibration instrument of infrared thermometer is suitable for calibrating various thermometers, if calibrate infrared thermometer, forehead thermometer, ear thermometer, aim at the test part 22 with the detection head of infrared thermometer, forehead thermometer, ear thermometer; for example, when calibrating a conventional mercury thermometer, a liquid medium such as water or alcohol may be added to the annular ring 15 after the annular ring 15 is added, and then the mercury thermometer may be placed in the liquid medium.
In addition, when the water bath blackbody calibration instrument of the infrared thermometer is produced, liquid media such as water, alcohol, antifreeze, silicone oil and the like can be pre-added into the water bath barrel 1; of course, also can not add liquid medium, add again when follow-up user marks the operation, above-mentioned condition all can, also all fall into the utility model discloses an within the protection scope.
Based on the structure, the water bath blackbody calibration instrument of the infrared thermometer has the advantages that the water bath barrel 1 is used for containing the liquid medium, the liquid medium is located in the closed water bath barrel 1, the degree of the liquid medium affected by the environment is small, the liquid medium is continuously circulated through the liquid circulation module 3, the temperature of each part of the liquid medium is basically consistent, and the temperature of the liquid medium is basically consistent with the preset temperature; the temperature of the water bath black body 2 is basically consistent with the temperature of the liquid medium by using the liquid medium to carry out water bath temperature control on the water bath black body 2 in a water bath mode, wherein the heat conductivity coefficient of the water bath black body 2 is higher, and the water bath black body 2 is always soaked in the liquid medium through the temperature conduction column 21; in addition, the arranged annular groove 24 enables the water bath black body 2 to have high infrared emissivity, and the actual temperature of the water bath black body 2 can be more accurately reflected in the subsequent calibration, so that the calibration accuracy is higher.
In the embodiment, the wall of the water bath barrel 1 is provided with a liquid inlet hole 12 and a liquid outlet hole 13, and the liquid inlet hole 12 and the liquid outlet hole 13 are communicated with the circulating pipeline 31; the liquid inlet hole 12 is lower than the liquid outlet hole 13. The liquid inlet hole 12 and the liquid outlet hole 13 are arranged to lead the liquid medium to rotate and rise in the water bath barrel 1. Based on the structure, the liquid medium in the water bath barrel 1 flows from bottom to top, so that the temperature of each part of the liquid medium is more uniform. Certainly, set up to the position that feed liquor hole 12 is higher than the position of going out liquid hole 13, feed liquor hole 12 and the position setting of going out liquid hole 13 make liquid medium descend in 1 internal rotation of water bath bucket, also can, this replacement also falls into within the protection scope of the utility model.
Alternatively, as shown in fig. 5, the liquid inlet hole 12 is located at the bottom of the water bath barrel 1, the liquid inlet hole 12 is connected with a guide pipe 122 located in the water bath barrel 1, the outlet of the guide pipe 122 is oriented to have a tangential component, namely a component perpendicular to the radial direction, and when the component perpendicular to the radial direction is provided, the water flushed from the outlet of the guide pipe 122 rotates in the water bath barrel 1.
Alternatively, as shown in fig. 6 and 7, the number of the liquid inlet holes 12 is two or more, the two or more liquid inlet holes 12 are circumferentially distributed on the wall of the water bath barrel 1, and the central axis 121 of the liquid inlet holes is offset from the central axis 14 of the water bath barrel. When the number of the liquid inlet holes 12 is more than two and the central axis 121 of the liquid inlet holes deviates from the central axis 14 of the water bath barrel, after the liquid medium enters the water bath barrel 1 from each liquid inlet hole 12, the liquid medium is flushed to rotate and form a vortex, the liquid medium rises in a rotating manner, and the temperature of each part of the liquid medium is more uniform. Of course, in this alternative, it is also possible to set the number of the liquid inlet holes 12 to one, and the purpose of rotating the liquid medium can also be achieved.
Besides the above two alternatives, other types of arrangements of the liquid inlet 12 and the liquid outlet 13 are also within the protection scope of the present invention as long as the liquid medium is raised or lowered in order to rotate in the water bath barrel 1.
In the present embodiment, the surface of the water bath black body 2 is provided with a black heat conductive coating. The black heat-conducting coating can enable the water bath black body 2 to absorb heat more quickly, and heat is not easy to dissipate to the outside, so that the temperature of the water bath black body 2 is more stable.
In this embodiment, the water bath barrel 1 is cylindrical, the cover plate 11 is disc-shaped, and the water bath black body 2 is installed in the middle of the cover plate 11. Based on foretell structure, make things convenient for foretell liquid medium to rotate, and lead the temperature post 21 and be located the middle part of water bath bucket 1, can make and lead the temperature post 21 and absorb the heat from all around uniformly, each part of whole water bath black body 2 heats up in step, conveniently controls the temperature of water bath black body 2. Of course, other shapes of the water bath barrel 1 are also possible and fall within the protection scope of the present invention. The outer wall of the water bath barrel 1 is provided with a heat preservation layer, so that the external influence is reduced. The water bath barrel 1 is sealed by the cover plate 11, so that heat dissipation is reduced.
In this embodiment, the annular ring 15 is detachably installed at the opening of the cover plate 11, the annular ring 15 is detachably installed, and can be adaptively replaced when calibrating different types of thermometers, the annular ring 15 can be used for supporting the thermometers to be measured, and the thermometers are prevented from directly touching the water bath black body 2, or as described above, by setting the annular ring 15, a liquid medium can be added into the cavity formed by the annular ring 15 and the water bath black body 2, so as to calibrate the mercury thermometer.
In the present embodiment, the heating module 4 is an electric heating rod disposed inside the water bath barrel 1, and the refrigerating module 5 is a semiconductor refrigerator disposed outside the water bath barrel 1, and the semiconductor refrigerator refrigerates the circulating pipeline 31 or the liquid medium. The heating rod is directly arranged in the water bath barrel 1 to directly heat the liquid medium. The semiconductor refrigerator is arranged outside the water bath barrel 1, and is provided with a refrigeration part which can refrigerate the circulating pipeline 31, indirectly refrigerate the liquid medium, or directly contact with the liquid medium to directly refrigerate the liquid medium. Of course, the above is only a preferred embodiment, and in practice, it is also possible that other types of heating modules are disposed outside the water bath tub 1, and the refrigerating part of the refrigerating module 5 is disposed inside the water bath tub 1. The forms and the arrangement positions of the heating module 4 and the refrigerating module 5 can be various, as long as the liquid medium can be heated and refrigerated, and a compressor can also be adopted as the refrigerating module 5. Of course, when the semiconductor refrigerator is adopted, the control precision is higher, and the temperature of the liquid medium is controlled by combining the hardware cooperation of the electric heating rod, the semiconductor refrigerator and the real-time temperature measurement component arranged on the water bath black body 2 with the PID control mode, so that the control precision is high, and the calibration precision is improved.
In this embodiment, the material of the water bath black body 2 is aluminum, copper or aluminum-copper alloy. Copper or aluminum has a relatively good heat conductivity, and therefore, the water bath black body 2 is preferably made of copper or aluminum. Of course, it is also possible to adopt other metal materials with better temperature conductivity or other non-metal materials with better temperature conductivity, and the above replacement also falls into the protection scope of the utility model.
In this embodiment, as shown in fig. 8, the water bath blackbody calibration instrument further includes a housing 6, and at least three sets of water bath barrels 1, cover plates 11, water bath blackbodies 2, liquid circulation modules 3, circulation pipes 31, heating modules 4, and refrigeration modules 5 are disposed in the housing 6. Therefore, a plurality of calibration points can be arranged in the same calibrator, such as the calibration at 36 ℃, 37 ℃ and 38 ℃ respectively, and the calibration can be carried out on the same infrared thermometer at multiple points, thereby further improving the calibration accuracy.
To sum up, the utility model provides a water bath black body calibration instrument of infrared radiation thermometer, its temperature control precision is high, receives the influence of environment less.
The features of the embodiments and embodiments described above may be combined with each other without conflict.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A water bath black body is characterized in that: the test device comprises a test part and a temperature conduction column extending downwards from the test part, wherein the upper surface of the test part is provided with a plurality of concentric annular grooves, the cross sections of the annular grooves are V-shaped, and the included angle between two groove walls forming the annular grooves is 50-59 degrees.
2. The water bath black body as set forth in claim 1, wherein: the angle between the two groove walls forming the annular groove is 55 °.
3. The water bath black body according to claim 1 or 2, wherein: and the outer surface of the heat conducting column is provided with heat conducting fins.
4. The water bath black body of claim 3, wherein: the heat conduction column is in an inverted cone shape, and the heat conduction fins are in a thread shape, an annular shape or a stripe shape.
5. The utility model provides a water bath black body calibrator of infrared thermometer which characterized in that: the water bath black body comprises a water bath barrel, a cover plate, a liquid circulation module, a circulation pipeline, a heating module, a refrigerating module and the water bath black body as claimed in any one of claims 1 to 4;
the water bath barrel is used for storing a liquid medium, and the liquid circulation module is communicated with the water bath barrel by virtue of the circulation pipeline;
the heating module and the refrigerating module are respectively used for heating and refrigerating the liquid medium;
the cover plate covers the top of the water bath barrel, the water bath black body is located in the water bath barrel, the cover plate is provided with an opening, and at least part of the test part is exposed from the opening.
6. The water bath blackbody calibration instrument of the infrared thermometer of claim 5, wherein: the water bath barrel is provided with a liquid inlet hole and a liquid outlet hole which are communicated with the circulating pipeline;
the liquid inlet hole and the liquid outlet hole have a height difference, and the liquid inlet hole and the liquid outlet hole are arranged to enable a liquid medium to rotate in the water bath barrel.
7. The water bath blackbody calibration instrument of the infrared thermometer of claim 6, wherein: the liquid inlet hole is connected with a guide pipe positioned in the water bath barrel, and the direction of an outlet of the guide pipe has a tangential component.
8. The water bath blackbody calibration instrument of the infrared thermometer of claim 5, wherein: the water bath barrel is cylindrical, the cover plate is in a circular plate shape, the cover plate seals the water bath barrel, a heat insulation layer is arranged on the outer wall of the water bath barrel, and the water bath black body is arranged in the middle of the cover plate.
9. The water bath blackbody calibration instrument of the infrared thermometer of claim 5, wherein: the opening of the cover plate is detachably provided with an annular ring.
10. A water bath blackbody calibration apparatus for an infrared thermometer according to any one of claims 5 to 9, wherein: the water bath blackbody calibration instrument further comprises a shell, wherein at least three groups of water bath barrels, cover plates, water bath blackbodies, a liquid circulation module, a circulation pipeline, a heating module and a refrigerating module are arranged in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020332878.6U CN211504408U (en) | 2020-03-17 | 2020-03-17 | Water bath black body and infrared thermometer's water bath black body calibrator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020332878.6U CN211504408U (en) | 2020-03-17 | 2020-03-17 | Water bath black body and infrared thermometer's water bath black body calibrator |
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| CN211504408U true CN211504408U (en) | 2020-09-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174921A (en) * | 2020-03-17 | 2020-05-19 | 佛山市顺德区安测检测设备有限公司 | Water bath black body and infrared thermometer's water bath black body calibrator |
-
2020
- 2020-03-17 CN CN202020332878.6U patent/CN211504408U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174921A (en) * | 2020-03-17 | 2020-05-19 | 佛山市顺德区安测检测设备有限公司 | Water bath black body and infrared thermometer's water bath black body calibrator |
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