CN113701892B - Method for measuring surface temperature of tobacco rod - Google Patents
Method for measuring surface temperature of tobacco rod Download PDFInfo
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- CN113701892B CN113701892B CN202110985768.9A CN202110985768A CN113701892B CN 113701892 B CN113701892 B CN 113701892B CN 202110985768 A CN202110985768 A CN 202110985768A CN 113701892 B CN113701892 B CN 113701892B
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- 241000208125 Nicotiana Species 0.000 title claims abstract description 29
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 23
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 117
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 16
- 238000012937 correction Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 7
- 239000008896 Opium Substances 0.000 claims 1
- 229960001027 opium Drugs 0.000 claims 1
- 230000005855 radiation Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 238000001514 detection method Methods 0.000 description 13
- 229910052742 iron Inorganic materials 0.000 description 8
- 238000003384 imaging method Methods 0.000 description 7
- 238000005476 soldering Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0003—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiant heat transfer of samples, e.g. emittance meter
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0806—Focusing or collimating elements, e.g. lenses or concave mirrors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0092—Temperature by averaging, e.g. by scan
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention discloses a method for measuring the surface temperature of a cigarette rod, which uses an annular measuring device to measure the circumferential surface temperature of the cigarette rodThe measurement is carried out, comprising the following steps: at the outlet of a cigarette gun of a cigarette making machine, performing 360-degree annular infrared multipoint temperature measurement on the circumferential surface of a cigarette rod which is just rolled, and calculating by using the following formula to obtain the average temperature of a certain annular line on the circumferential surface of the cigarette rod:
wherein, T is as follows: the average temperature of a certain annular line on the circumferential surface of the tobacco rod; n: counting the temperature measurement; ti: the temperature of each temperature measuring point; k1: a temperature loss correction coefficient; k2: the weight correction coefficient. The method can accurately and effectively measure the circumferential surface temperature of the tobacco rod.
Description
Technical Field
The invention belongs to the technical field of cigarette processing, and particularly relates to a method for detecting the temperature of a cigarette rod at the outlet of a cigarette gun in the cigarette rolling process of a cigarette making machine.
Background
During the forming process of cigarette strips, cigarette paper wraps tobacco shreds, then glue coating and iron drying are carried out to form continuous cigarette strips, the cigarette strips enter a mouth connecting working section after weight detection and cutting of a cutter head, and finished cigarettes are obtained after filter tips are connected.
The rod coming out of the pipe is currently only tested for weight or density and not for other parameters such as temperature. However, parameters such as the moisture content of the cut tobacco entering the tobacco rod, the temperature of the heated iron and the like have obvious influence on the quality of the finished tobacco rod. The temperature of the finished tobacco rod is affected by the following factors: whether the temperature settings of machine table soldering irons of all cigarette making machines are consistent or not; if the temperature is set to be consistent, but the installation state of the heating tube of the soldering iron is inconsistent, whether the heat transfer between the heating tube and the soldering iron is consistent or not; the difference in tightness of contact between the tobacco rod and the soldering iron results in a consistent heat transfer between the soldering iron and the tobacco rod.
Because the difference of the factors can generate different influences on the smoking quality of the cigarettes, the quality of the cigarettes produced by the same machine table is different between different machine tables or in different time periods of the same machine table; therefore, the detection of the temperature of the cigarette rod is especially necessary in the cigarette rod forming process; because the accurate detection and control of the cigarette strip temperature can ensure the stability and the uniformity of the cigarette quality while avoiding the quality problem caused by the cigarette lap adhesive.
The production process of the tobacco rod is continuous. In the continuous quick forward transportation process of cigarette strip, according to the position of cigarette strip contact joint flatiron, a cigarette circumference surface can form different temperature distribution, and temperature distribution's difference can have certain influence to the quality and the quality of finished product cigarette. In the prior art, the surface temperature of the cigarette strip of the cigarette making machine can be detected only by manually using an infrared plane imaging thermodetector or a punctiform infrared thermodetector. However, the cigarette rod is cylindrical, and due to the influence of the shape of the cigarette rod, the planar imaging can only detect the temperature of one part of the surface of the cigarette rod, and cannot detect the temperature of the other part of the surface of the cigarette rod, so that the detection distortion degree of the temperature of the whole circumferential surface of the cigarette rod is high.
The present invention has been made to solve the above problems.
Disclosure of Invention
In order to solve the problem of accurate measurement and characterization of the circumferential surface temperature of the cigarette strip, the invention provides a new measurement method for the circumferential surface temperature of the cigarette strip at the outlet of a cigarette gun of a cigarette making machine. The result measured by the method of the invention is accurate and credible.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a method for measuring the surface temperature of a cigarette rod by using an annular measuring device, comprising the following steps:
at the cigarette gun outlet of a cigarette making machine, carrying out uniform multipoint temperature measurement on a certain 360-degree annular line on the circumferential surface of a cigarette rod which is just rolled, and calculating by using the following formula to obtain the average temperature of the certain annular line on the circumferential surface of the cigarette rod:
wherein T is the average temperature of a certain annular line on the circumferential surface of the tobacco rod, and n is the number of temperature measurement points; ti is the temperature of each temperature measuring point, K1 is a temperature loss correction coefficient, and K2 is a weight correction coefficient.
Preferably, the number n of the temperature measurement points is not less than 3.
Preferably, the wavelength of the infrared selected for thermometry is 5-10 μm.
Preferably, the circumferential surface of the cigarette rod with the frequency of not less than 1 frame/12 seconds is selected for measuring the temperature of the circumferential surface of the continuous cigarette rod within a period of time, and then the temperature is converted into the average temperature, so that the temperature of the circumferential surface of the continuous cigarette rod within a period of time is obtained.
Preferably, the annular measuring device comprises: the cigarette channel comprises a cigarette channel inner shell Kn, a cylindrical convex lens T, a cylindrical grating S and a cylindrical infrared detector D; the cylindrical convex lens T is sleeved on the periphery of the cigarette channel inner shell Kn, and the cylindrical grating S is sleeved on the periphery of the cylindrical convex lens; the cylindrical infrared detector D is sleeved on the periphery of the cylindrical grating S, so that the position of the cylindrical infrared detector D is positioned on a focusing ring of the cylindrical convex lens, and the cylindrical convex lens, the cylindrical grating and the cylindrical infrared detector are coaxially arranged;
the method for measuring the surface temperature of the cigarette rod by using the annular measuring device comprises the following steps: inserting the cigarette strip at the outlet of a cigarette gun of a cigarette making machine into the cigarette channel inner shell Kn, after focusing the infrared rays on the circumferential surface of the cigarette strip by the cylindrical convex lens, isolating other interference light rays by the cylindrical grating S, projecting the infrared rays with the wavelength of 5-10 mu m onto the cylindrical infrared detector D to form a focusing ring, uniformly taking multiple points on the focusing ring to measure the temperature, and processing to obtain the average temperature of a certain ring line on the circumferential surface of the cigarette strip.
The invention has the beneficial effects that:
1. the method of the invention can accurately and effectively measure the circumferential surface temperature of the tobacco rod. According to the method, whether the cigarette strip joint glue is firmly adhered or not can be reflected, and the quality problem caused by the cigarette joint glue can be reduced; and through cigarette bar temperature detection, can carry out accuracy setting with the flatiron temperature, promoted cigarette quality stability and unity.
2. The annular measuring device used in the method is designed for the measurement requirement of the applicant on the temperature of the full-circumference surface of the cigarette rod at the outlet of the cigarette gun of the on-site cigarette making machine. The annular measuring device is used for measuring the circumferential surface temperature of the cigarette rod, and the blank of accurate measurement of the circumferential surface temperature of the cigarette rod is filled.
Drawings
FIG. 1 is an axial planar view (upper) of the annular measuring device of the present invention along the central axis of a cylindrical convex lens and a radial planar view (lower) perpendicular to the central axis of the cylindrical convex lens.
Fig. 2 is a schematic view of a method for measuring the circumferential surface temperature of a tobacco rod according to an embodiment of the present invention.
Figure 3 is a graph of measured temperatures of the full circumferential surface of a continuous tobacco rod over 355 seconds for an embodiment of the present invention. There are six curves on fig. 3. Because a cigarette making machine has 2 ferrochrome, each iron has a set temperature, a measured temperature, 4 curves in total, and an average curve is formed after the 4 curves are averaged; plus rod temperature, for a total of 6 curves. The lowermost curve is the temperature profile of the full circumferential surface of the continuous rod.
FIG. 4 is a graph showing the results of planar imaging of the circumferential surface temperature of a tobacco rod in accordance with an embodiment of the present invention.
The reference signs are: kn, cigarette channel inner shell; t1, a first cylindrical convex lens; t2, a second cylindrical convex lens; t3, a third cylindrical convex lens; s, cylindrical grating; D. a cylindrical infrared detector.
Detailed Description
In order to further understand and appreciate the structural features and effects achieved by the present invention, the present invention will be described in detail with reference to the following embodiments and the accompanying drawings.
The cigarette rod temperature detecting device used in the measurement method of the cigarette rod surface temperature of the present invention as shown in fig. 1 is planed (upper) along the central axis of the cylindrical convex lens and planed (lower) in the radial direction perpendicular to the central axis of the cylindrical convex lens; the cigarette rod temperature detection device of the invention comprises: a cigarette channel inner shell Kn; a first cylindrical convex lens T1; a second cylindrical convex lens T2; a third cylindrical convex lens T3; s, cylindrical grating; D. a cylindrical infrared detector.
The cigarette carton temperature detection device of the embodiment uses two cylindrical biconvex convex lenses which are coaxially sleeved together and respectively provided with a first cylindrical convex lens T1 and a second cylindrical convex lens T2 from inside to outside; wherein the inner diameter of the first cylindrical convex lens T1 is 12mm, and the outer diameter is 19.6mm; the inner diameter of the second cylindrical convex lens T2 is 20mm, and the outer diameter is 27.6mm; the curvature radius is 25mm; the cylindrical convex lens has the structure that: the circular convex lens is a cylinder body which is formed by a circle of an approximate elliptic section cut by a plane passing through a vertical center line and taking a parallel line at a certain distance around the long axis of the approximate elliptic section as a central axis, wherein the cylinder body has the thickest middle wall and the thinnest two ends.
As shown in fig. 1, the periphery of the second cylindrical convex lens T2 is a cylindrical grating S for isolating other interfering light, the inner diameter of the cylindrical grating S is 89.6mm, and the outer diameter is 90.6mm; the periphery of the cylindrical grating S is provided with a cylindrical infrared detector D, the inner diameter of the cylindrical infrared detector D is 95.6mm, and the outer diameter of the cylindrical infrared detector D is 97.6mm; namely, the cylindrical grating S is sleeved on the peripheries of the two cylindrical convex lenses, and the cylindrical infrared detector D is sleeved on the periphery of the cylindrical grating S; the two cylindrical convex lens cylindrical gratings are coaxial with the cylindrical infrared detector, and the position of the cylindrical infrared detector D is positioned on the focusing rings of the two cylindrical convex lenses. The cigarette channel inner shell Kn is sleeved in the cylindrical convex lens at the innermost side and is coaxial with the cylindrical convex lens, the cylindrical grating and the cylindrical infrared detector, the inner diameter of the cigarette channel inner shell Kn is 10mm, and the outer diameter of the cigarette channel inner shell is 11mm; the shell Kw surrounds the periphery of the cylindrical infrared detector. The invention selects infrared rays with the wavelength of 10 mu m for temperature measurement. The lengths of the inner shell Kn of the cigarette channel, the first cylindrical convex lens T1, the second cylindrical convex lens T2, the cylindrical grating S and the cylindrical infrared detector D are all 30mm. The device of the invention also comprises components such as a controller, a display and the like, which are not marked in the attached drawings; meanwhile, the third cylindrical convex lens T3 and the fourth cylindrical convex lens T4 \8230; and the like can be continuously arranged according to the requirement that the focusing is insufficient or the size of the device is too large, and the more the cylindrical convex lenses are used, the more the size of the cigarette rod temperature detection device can be reduced, but the distortion degree of the temperature measurement result is increased.
The material of the cigarette channel inner shell Kn is infrared ray penetrating polyester PC; the first cylindrical convex lens T1 and the second cylindrical convex lens T2 are both made of 8-14UM silicon lenses; the cylindrical grating is made of a special grating material for the infrared imager; the cylindrical infrared detector is an amorphous silicon photoresistor; the casing Kw is made of stainless steel.
The method for detecting the temperature of the cigarette rod by using the cigarette rod temperature detection device comprises the following steps:
inserting a cigarette rod at the outlet of a cigarette gun of a cigarette making machine into the cigarette channel inner shell Kn, focusing infrared rays of a certain 360-degree annular line on the circumferential surface of the cigarette rod by the two cylindrical convex lenses, isolating other interference light rays by the cylindrical grating (S), projecting the infrared rays with the wavelength of 10 mu m onto the cylindrical infrared detector (D) to form a focusing ring, uniformly taking a plurality of temperature measuring points on the focusing ring line, and processing to obtain the average temperature of the 360-degree annular line on the circumferential surface of the cigarette rod;
aiming at the tobacco strips which continuously pass at a constant speed, the temperature detection device of the tobacco strips measures the temperature of the whole circumferential surface of the continuous tobacco strips within a period of time through an infrared detector (D) to form a continuous focusing ring; selecting a ring line of a focusing ring with the frequency of not less than 1 frame/12 seconds for temperature measurement, and then processing to obtain a continuous average temperature curve; i.e. the temperature of the full circumferential surface of the continuous rod over a period of time.
Examples
The method for detecting the temperature of the cigarette sticks by using the annular measuring device comprises the following processing steps:
as shown in fig. 2, a cigarette rod at the outlet of a cigarette gun of a cigarette making machine is inserted into an inner shell Kn of a cigarette channel, infrared rays of a certain 360-degree annular line on the circumferential surface of the cigarette rod which is just rolled are focused to form a focusing ring, a plurality of temperature measuring points are uniformly taken on the focusing ring, the number of dot matrixes of the infrared imaging detector is 320 x 45, and the average temperature of the certain annular line on the circumferential surface of the cigarette rod is obtained by calculating by using the following formula:
wherein, T is as follows: the average temperature of a certain annular line on the circumferential surface of the tobacco rod; n: counting the temperature measurement points; ti: the temperature of each temperature measuring point; k1: a temperature loss correction coefficient; k2: a weight correction factor; the number n of the temperature measurement points is 100; the selected infrared wavelength for temperature measurement is 10 μm;
aiming at the cigarette strips which continuously pass at a constant speed, the temperature of the whole circumferential surface of the continuous cigarette strips within 355 seconds of the cigarette strip temperature detection device is measured by an infrared detector (D) and is a continuous focusing ring; selecting a ring line of a focusing ring with the frequency of 1 frame/6 seconds for temperature measurement, and then processing to obtain a continuous average temperature curve; i.e. the temperature of the full circumferential surface of the continuous rod is obtained within 355 seconds, as shown in figure 3.
As can be seen from FIG. 3, the temperature of the circumferential surface of the continuous rod is not uniformly stable. Therefore, the method of the invention detects the surface temperature of the tobacco rod and relatively comprehensively reflects the temperature distribution condition of the circumferential surface of the continuous tobacco rod. However, in the measurement method of the infrared plane imaging thermometer in the prior art, the temperature of only one part of the surface of the cigarette strip can be detected, and the temperature of the other part of the surface of the cigarette strip cannot be detected, so that the detection of the temperature of the circumferential surface of the cigarette strip is inaccurate, and the detection of the temperature distribution condition of the full circumferential surface of the continuous cigarette strip within a period of time is also inaccurate.
FIG. 4 is a graph showing the result of planar imaging of the circumferential surface temperature of a tobacco rod according to an embodiment of the present invention. The graph shows the results of single-frame imaging of the surface temperature measurement of the tobacco rod under different soldering iron temperatures, the number of the imaging lattice is 320 x 45, and a formula is adopted according to the temperature data of each point
The digital conversion was carried out, and the results of the three temperatures were found to be 140.6 ℃,124.6 ℃ and 117.2 ℃, respectively.
The above description is only a specific embodiment of the present invention, but not a limitation of the present invention, and those skilled in the art can modify and modify the basic idea of the present invention without departing from the basic idea of the present invention.
Claims (4)
1. A method for measuring the surface temperature of a cigarette rod, wherein the circumferential surface temperature of the cigarette rod is measured by using an annular measuring device, comprising the steps of:
at the cigarette gun outlet of the cigarette making machine, carrying out uniform multipoint temperature measurement on a certain annular line on the circumferential surface of the cigarette rod which is just rolled, and calculating by using the following formula to obtain the average temperature of the certain annular line on the circumferential surface of the cigarette rod:
wherein T is the average temperature of a certain annular line on the circumferential surface of the cigarette rod, and n is the number of temperature measuring points; ti is the temperature of each temperature measuring point, K1 is a temperature loss correction coefficient, and K2 is a weight correction coefficient;
the annular measuring device includes: the cigarette channel comprises a cigarette channel inner shell (Kn), a cylindrical convex lens (T), a cylindrical grating (S) and a cylindrical infrared detector (D); the cylindrical convex lens (T) is sleeved on the periphery of the cigarette channel inner shell (Kn), and the cylindrical grating (S) is sleeved on the periphery of the cylindrical convex lens; the cylindrical infrared detector (D) is sleeved on the periphery of the cylindrical grating (S), so that the position of the cylindrical infrared detector (D) is positioned on a focusing ring of the cylindrical convex lens, and the cylindrical convex lens, the cylindrical grating and the cylindrical infrared detector are coaxially arranged;
the method for measuring the surface temperature of the cigarette rod by using the annular measuring device comprises the following steps: inserting the cigarette strip of cigarette machine opium pipe export in cigarette passageway inner shell (Kn), the tube-shape convex lens is after the infrared ray focus of cigarette strip circumferential surface, after keeping apart other interference light through tube-shape grating (S), projects the infrared ray that the wavelength is 5-10 mu m and becomes the focus ring on tube-shape infrared detector (D), evenly gets the multiple spot temperature measurement on the focus ring line, obtains the average temperature of certain ring line of cigarette strip circumferential surface after the processing.
2. The method as set forth in claim 1, wherein the number n of the temperature measuring points is not less than 3.
3. The method of claim 1, wherein the infrared radiation selected for temperature measurement has a wavelength of 5-10 μm.
4. The method for measuring the surface temperature of the tobacco rod according to claim 1, wherein the circumferential surface of the tobacco rod with the frequency of not less than 1 frame/12 seconds is selected for measuring the temperature of the circumferential surface of the continuous tobacco rod within a period of time, and then the temperature is converted into the average temperature, so that the temperature of the circumferential surface of the continuous tobacco rod within a period of time is obtained.
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| CN202110985768.9A CN113701892B (en) | 2021-08-26 | 2021-08-26 | Method for measuring surface temperature of tobacco rod |
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| CN202110985768.9A CN113701892B (en) | 2021-08-26 | 2021-08-26 | Method for measuring surface temperature of tobacco rod |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19950849A1 (en) * | 1999-10-21 | 2001-06-07 | Fraunhofer Ges Forschung | Multi-parameter measuring device for heat source, has evaluation unit that evaluates the signals output by single infrared sensor whose relative spatial position with respect to heat source is changeable along linear axis |
| CN105806512A (en) * | 2016-03-24 | 2016-07-27 | 云南中烟工业有限责任公司 | Contact type device for measuring temperature of moving tobacco |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020048307A1 (en) * | 2000-09-14 | 2002-04-25 | Volker Schmidt | Device and process for infrared temperature measurement |
| CN102886500B (en) * | 2012-10-18 | 2014-08-20 | 中钢集团鞍山热能研究院有限公司 | Method and device for rapidly and accurately detecting and controlling baking temperature of ladle |
| JP6382472B2 (en) * | 2016-06-13 | 2018-08-29 | 株式会社芝浦電子 | Infrared temperature sensor |
| CN208223646U (en) * | 2018-05-02 | 2018-12-11 | 武汉理工大学 | A kind of measuring device of cylinder of rotary kiln surface perimeter circumferential direction temperature |
| CN108917961B (en) * | 2018-07-27 | 2019-11-26 | 中国核动力研究设计院 | A kind of cluster fuel assembly multiple spot wall temperature measurement device under moving condition |
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- 2021-08-26 CN CN202110985768.9A patent/CN113701892B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19950849A1 (en) * | 1999-10-21 | 2001-06-07 | Fraunhofer Ges Forschung | Multi-parameter measuring device for heat source, has evaluation unit that evaluates the signals output by single infrared sensor whose relative spatial position with respect to heat source is changeable along linear axis |
| CN105806512A (en) * | 2016-03-24 | 2016-07-27 | 云南中烟工业有限责任公司 | Contact type device for measuring temperature of moving tobacco |
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