KR20000013456U - Automatic Calibration Device of Radiation Thermometer Used in Steel Mill - Google Patents
Automatic Calibration Device of Radiation Thermometer Used in Steel Mill Download PDFInfo
- Publication number
- KR20000013456U KR20000013456U KR2019980026626U KR19980026626U KR20000013456U KR 20000013456 U KR20000013456 U KR 20000013456U KR 2019980026626 U KR2019980026626 U KR 2019980026626U KR 19980026626 U KR19980026626 U KR 19980026626U KR 20000013456 U KR20000013456 U KR 20000013456U
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- South Korea
- Prior art keywords
- thermometer
- calibration
- radiation thermometer
- radiation
- black body
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- 230000005855 radiation Effects 0.000 title claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000011056 performance test Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Classifications
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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
- G01K15/005—Calibration
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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
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0887—Integrating cavities mimicking black bodies, wherein the heat propagation between the black body and the measuring element does not occur within a solid; Use of bodies placed inside the fluid stream for measurement of the temperature of gases; Use of the reemission from a surface, e.g. reflective surface; Emissivity enhancement by multiple reflections
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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
- G01J5/80—Calibration
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- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
본 고안은 비접촉식 온도 측정기인 제철소에서 사용되는 복사온도계를 교정하는 장치에 관한 것으로, 복사율의 기준이 되는 흑체(5)를 내장하고 소정의 열복사선을 방출하는 흑체로(3,4)에 평행하게 설치된 베이스(10)와, 베이스 위에 설치되어 모터(12)에 의해 작동되어 보조베이스판(13)을 좌우로 이동시키기 위한 좌우이동축(11a,11b)과, 보조베이스판 위에 설치되어 모터(15)에 의해 작동되어 로터리클램프(20)를 전후로 이동시키기 위한 전후이동축(14a,14b)과, 전후이동축(14) 위에 이동가능하게 결합된 고정판(16)에 지지대(22)를 통해 회전가능하게 설치되며 다수의 교정 복사온도계(10가 장착된 로터리클램프(20)를 구비하는 것을 특징으로 한다.The present invention relates to a device for calibrating a radiation thermometer used in a steel mill, which is a non-contact temperature measuring device, in which a black body 5 serving as a reference of the emissivity is embedded and parallel to a black body furnace 3 and 4 that emits predetermined heat radiation. The base 10 installed on the base, the left and right moving shafts 11a and 11b installed on the base and operated by the motor 12 to move the auxiliary base plate 13 left and right, and the motor 15 mounted on the auxiliary base plate. It is rotatably installed through the support 22 to the front and rear movable shafts 14a and 14b for moving the rotary clamp 20 back and forth, and the fixed plate 16 movably coupled to the front and rear movable shaft 14. It is characterized by having a rotary clamp 20 equipped with a plurality of calibration radiation thermometer (10).
본 고안에 의하면 광학이나 적외선 복사율을 이용한 비접촉식 복사온도계의 성능 검사 및 교정시 광원과 온도계 사이의 위치 및 거리를 자동으로 정확히 조절하여 온도계 초점의 불일치에 따른 오차를 제거하며 제철소에서와 같이 다양한 형상의 온도계를 다량으로 교정할 경우 신속하고 정확하게 교정작업을 수행할 수 있어 교정신뢰도 및 작업능률이 향상될 수 있다.According to the present invention, when the performance test and calibration of the non-contact radiation thermometer using optical or infrared radiation rate is corrected automatically, the position and distance between the light source and the thermometer are automatically adjusted to eliminate the error caused by the mismatch of the thermometer focus. If the thermometer is calibrated in large quantities, calibration can be performed quickly and accurately, improving calibration reliability and efficiency.
Description
본 고안은 비접촉식 온도 측정기인 복사온도계를 교정하는 장치에 관한 것으로, 보다 상세하게는 광학이나 적외선 복사율을 이용한 비접촉식 복사온도계의 성능 검사 및 교정시 광원과 온도계 사이의 위치 및 거리를 자동으로 정확히 조절하여 온도계 초점의 불일치에 따른 오차를 제거하며 제철소에서와 같이 다양한 형상의 온도계를 다량으로 교정할 경우 신속하고 정확하게 교정작업을 수행할 수 있는 복사온도계의 자동교정장치에 관한 것이다.The present invention relates to a device for calibrating a radiation thermometer, which is a non-contact temperature measuring device, and more specifically, by precisely adjusting the position and distance between a light source and a thermometer automatically during performance inspection and calibration of a non-contact radiation thermometer using optical or infrared radiation. The present invention relates to an automatic calibration device of a radiation thermometer that eliminates errors due to thermometer focus mismatch and can quickly and accurately calibrate various thermometers of various shapes as in steel mills.
일반적으로 비접촉식 복사온도계는 광원 또는 발열체에서 방출되는 열복사선의 세기를 광검출기로 측정하여 온도로 환산하는 비접촉식 온도 측정기이며, 제철소의 쇳물이나 이동하는 고온의 슬라브, 열연강판과 같이 접촉이 곤란한 개소에 주로 사용되며, 측정 신뢰도와 품질의 우수성을 확보하기 위하여 주기적으로 교정 검사를 실시한다.In general, the non-contact radiation thermometer is a non-contact temperature measuring device that converts the intensity of the heat radiation emitted from the light source or the heating element into a photodetector and converts it into temperature. In order to ensure measurement reliability and quality excellence, calibration checks are conducted periodically.
복사온도계의 교정 방법은, 도 1 도시와 같이, 복사율의 기준이 되는 흑체(5)를 내부에 내장하고 온도를 일정하게 조절하여 원하는 열복사선을 방출하는 흑체로(3)를 이용하여 복사온도계(1)의 초점을 흑체에 정확하게 일치시켜 흑체로의 온도와 복사온도계의 측정치를 비교하여 교정한다.The calibration method of the radiation thermometer is, as shown in Fig. 1, by using a black body furnace 3 that emits a desired heat radiation by having a built-in black body 5 as a reference for the emissivity therein and controlling the temperature constantly. Correctly adjust the focus of 1) to the black body and compare the temperature of the black body with the measured value of the radiation thermometer.
그러나 상기와 같이 복사온도계를 교정하는 방식에 의하면 제철소와 같이 매우 다양한 종류의 복사온도계를 다량으로 사용하는 경우 교정 및 성능검사에 있어서 각각의 복사온도계에 적합한 고정장치가 필요하고 측정범위에 따른 온도의 승온 및 감온의 반복에 의해 흑체로의 수명이 단축되고 에너지를 낭비하며 초점거리를 정확하게 맞추기 어려워 교정 신뢰도와 작업능률이 저하하는 등의 문제가 존재하였다.However, according to the method of calibrating the radiation thermometer as described above, when a large variety of radiation thermometers such as steel mills are used in a large amount, a fixing device suitable for each radiation thermometer is required for calibration and performance inspection, The repetition of temperature and temperature decreases the lifespan of the blackbody, wastes energy and makes it difficult to accurately adjust the focal length, resulting in a decrease in calibration reliability and work efficiency.
본 고안은 상기 설명한 바와 같은 종래 기술의 문제를 해결하기 위하여 이루어진 것으로, 다양한 종류의 복수의 복사온도계를 여러개 구비하여 각각의 초점거리를 정확하게 일치시킬 수 있고 흑체로의 온도에 따라 교정하여 사용가능하도록 구성한 복사온도계 자동교정장치를 제공함에 그 목적이 있다.The present invention has been made to solve the problems of the prior art as described above, it is provided with a plurality of radiation thermometers of various types so that the respective focal length can be exactly matched and can be used by correcting according to the temperature of the black body The purpose of the present invention is to provide a self-calibrating radiation thermometer.
도 1은 종래의 복사온도계 교정방법을 설명하기 위한 도면,1 is a view for explaining a conventional radiation thermometer calibration method,
도 2는 본 고안에 따른 복사온도계 자동교정장치를 도시한 사시도,Figure 2 is a perspective view showing a radiation thermometer automatic calibration device according to the present invention,
도 3은 도 2 도시 장치의 측면도이다.3 is a side view of the device shown in FIG. 2.
〈도면의 주요 부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
1:교정복사온도계 2:표준복사온도계 3,4:흑체로1: Calibration radiation thermometer 2: Standard radiation thermometer 3, 4: Black body
10:베이스 11:좌우이동축 12:좌우위치제어모터10: Base 11: Left / Right axis 12: Left / Right position control motor
13:보조베이스판 14:전후이동축 15:전후위치제어모터13: Auxiliary base plate 14: Front and rear movement shaft 15: Front and rear position control motor
16:고정판 17:표준복사온도계지지대16: Fixed plate 17: Standard radiation thermometer support
20:로터리클램프 21:클램프회전모터 22:클램프지지대20: rotary clamp 21: clamp rotation motor 22: clamp support
상기 목적을 달성하기 위한 본 고안의 복사온도계 자동교정장치는, 복사율의 기준이 되는 흑체(5)를 내장하고 소정의 열복사선을 방출하는 흑체로(3,4)에 평행하게 설치된 베이스(10)와, 베이스 위에 설치되어 모터(12)에 의해 작동되어 보조베이스판(13)을 좌우로 이동시키기 위한 좌우이동축(11a,11b)과, 보조베이스판 위에 설치되어 모터(15)에 의해 작동되어 로터리클램프(20)를 전후로 이동시키기 위한 전후이동축(14a,14b)과, 전후이동축(14) 위에 이동가능하게 결합된 고정판(16)에 지지대(22)를 통해 회전가능하게 설치되며 다수의 교정 복사온도계(10가 장착된 로터리클램프(20)를 구비하는 것을 특징으로 하는 구성이다.Radiation thermometer automatic calibration device of the present invention for achieving the above object, the base 10 is installed in parallel to the black body furnace (3,4) that incorporates a black body (5) as a reference of the emissivity and emits a predetermined heat radiation And installed on the base and operated by the motor 12 to move the auxiliary base plate 13 to the left and right moving shafts 11a and 11b, and installed on the auxiliary base plate and operated by the motor 15 to rotate. A plurality of calibration radiation thermometers are rotatably installed on the front and rear movable shafts 14a and 14b for moving the clamp 20 forward and backward through the support 22 on the fixed plate 16 movably coupled to the front and rear movable shaft 14. (10 is provided with the rotary clamp 20 equipped with it. It is a structure characterized by the above-mentioned.
이하에서는 양호한 실시예를 도시한 첨부도면과 관련하여 본 고안을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings showing preferred embodiments.
도 1 은 본 고안에 따른 복사온도계 자동교정장치를 도시한 사시도인데, 상부에 여러 구조물을 설치할 수 있도록 충분한 크기와 강도를 가진 직사각형 박스 형상으로 이루어지고 온도를 측정할 흑체로(3,4)와 평행하게 설치된 베이스(10)를 구비한다.1 is a perspective view showing an automatic radiation thermometer automatic calibration device according to the present invention, made of a rectangular box shape having a sufficient size and strength so that various structures can be installed on the top, and a black body furnace (3, 4) to measure the temperature; It has a base 10 installed in parallel.
또한, 본 고안에서 베이스(10) 상부에는 충분한 강도와 직경을 가지는 한쌍의 좌우이동축(11a,11b)이 브라켓을 개재하여 장착되는데, 좌우이동축(11a)은 좌우위치 제어모터(12)에 의해 작동되도록 외주면이 스크류 가공되어 있어 보조 베이스판(13)을 좌우로 이동시킬 수 있도록 구성된다.In addition, in the present invention, a pair of left and right moving shafts 11a and 11b having sufficient strength and diameter is mounted on the base 10 via a bracket, and the left and right moving shafts 11a are operated by the left and right position control motor 12. The outer circumferential surface is screwed so as to move the auxiliary base plate 13 from side to side.
한편, 보조베이스판(13) 위에는 표준 복사온도계(2)가 설치된 지지대(17)가 일측 모서리에 설치되고 로타리 클램프(20)를 전후로 이동시키기 위한 전후이동축(14a,14b)이 좌우 양측에 설치된다.On the other hand, on the auxiliary base plate 13, a support 17 on which the standard radiation thermometer 2 is installed is installed at one corner, and the front and rear moving shafts 14a and 14b for moving the rotary clamp 20 forward and backward are installed on both left and right sides. .
일단부에 전후위치 제어모터(15)가 장착된 전후위치이동축(14a)은 충분한 강도와 직경의 원주 둘레에 스크류가 형성된 구성으로 모터(15)의 작동에 의해 로타리클램프(20)를 전후로 이동시킨다.The front and rear position movement shaft 14a, in which the front and rear position control motor 15 is mounted at one end, moves the rotary clamp 20 back and forth by the operation of the motor 15 with a screw formed around the circumference of sufficient strength and diameter. .
그리고, 본 고안에서 로타리클램프(20)는 보조베이스판(13) 위에 장착된 전후이동축(14a,14b)에 전후로 이동가능하게 결합설치된 고정판(16) 위에 지지대(22)에 의하여 회전가능하게 장착되는데, 다수의 복사온도계(1)를 장착할 수 있도록 온도계취부공(20a)이 관통형성되며 취부공의 흑체로(3) 대향면에는 온도계를 고정할 수 있는 척(23)이 도 3 도시와 같이 장착되어 있으며, 로터리클램프(20) 회전모터(21)의 축에 지지대(22) 상부를 관통하여 회전가능하게 결합되어 있다.In the present invention, the rotary clamp 20 is rotatably mounted by the support 22 on the fixed plate 16 which is installed to be movable back and forth to the front and rear movable shafts 14a and 14b mounted on the auxiliary base plate 13. In order to mount a plurality of radiation thermometers (1), the thermometer mounting hole (20a) is formed through and the chuck (23) for fixing the thermometer on the opposite surface of the black body passage (3) of the mounting hole as shown in FIG. Is mounted, is rotatably coupled to the shaft of the rotary clamp 20 through the support 22 to the shaft of the rotary motor 21.
상기와 같은 본 고안에서 로타리클램프(20)에 취부된 여러개의 복사온도계(1) 및 로타리클램프 회전모터(21), 좌우위치제어모터(12), 전후위치 제어모터(15)는 콘트롤 패널부에 전기적으로 연결되어 제어되는데, 콘트롤 패널부는 전체 시스템에 적절한 전원을 공급하는 전원공급부(31)와, 각 제어모터(12,15,21)를 제어하기 위한 위치제어부(32), 각각의 복사온도계(1) 및 표준 복사온도계(2)에서 검출한 신호를 변환하여 컴퓨터(30)에 전송하는 변환기(33)와 제어 프로그램이 내장된 컴퓨터(30)로 이루어진다.In the present invention as described above, the plurality of radiation thermometers (1) and rotary clamp rotary motors (21), left and right position control motors (12), front and rear position control motors (15) attached to the rotary clamp (20) are included in the control panel. It is electrically connected and controlled, the control panel unit, the power supply unit 31 for supplying proper power to the entire system, the position control unit 32 for controlling each control motor 12, 15, 21, each radiation thermometer ( 1) and a converter 33 for converting a signal detected by the standard radiation thermometer 2 and transmitting it to the computer 30, and a computer 30 having a built-in control program.
이하에서는 상기와 같은 구성의 본 고안 장치의 작용을 설명한다.Hereinafter, the operation of the device of the present invention of the configuration as described above.
전원공급부(31)에 주전원을 투입후 컴퓨터(30)를 가동하고 여러 작업조건을 입력하여 저온 흑체로(3)가 적절하게 승온되면, 프로그램 순서에 따라 좌우위치 제어모터(12)가 동작하여 보조베이스판(13)을 이동시켜 표준 복사온도계(2)의 중심이 저온 흑체로(3) 내부의 흑체(5)와 같은 축선에 위치하도록 하며, 표준복사온도계(2)는 흑체(5)의 온도를 측정하여 그 결과를 컴퓨터(30)에 전송하며 컴퓨터(30)는 표준복사온도계(2)와 복사온도계(1)의 측정값을 비교하여 오차를 지시한다.After the main power is supplied to the power supply unit 31 and the computer 30 is operated and various working conditions are input, when the low temperature black body furnace 3 is properly heated, the left and right position control motor 12 is operated in accordance with the program sequence to assist the auxiliary power supply. The base plate 13 is moved so that the center of the standard radiation thermometer 2 is located at the same axis as the black body 5 inside the low temperature black body furnace 3, and the standard radiation thermometer 2 is the temperature of the black body 5 Is measured and transmitted to the computer 30, and the computer 30 compares the measured values of the standard radiation thermometer 2 and the radiation thermometer 1 to indicate an error.
이와 같은 방식으로 표준복사온도계(2)와 복사온도계(1)의 비교측정을 수차례 반복한후 클램프 회전모터(21)를 작동시켜 클램프(20)를 회전시켜 다음 교정 대상 온도계를 측정 위치에 이동시키며, 로터리클램프(20)에 설치된 모든 온도계의 비교 교정이 완료되면 저온 흑체로(3)를 다음 교정온도로 승온하여 작업하고 저온흑체로(3)에서 모든 작업이 완료되면 좌우위치 제어모터(12)가 동작하여 고온흑체로(4)의 측정 위치로 이동하게 된다.In this way, after repeating the comparative measurement of the standard radiation thermometer (2) and the radiation thermometer (1) several times, the clamp rotating motor (21) is operated to rotate the clamp (20) to move the next calibration target thermometer to the measurement position. When the comparison calibration of all the thermometers installed in the rotary clamp 20 is completed, the low temperature black body furnace 3 is heated to the next calibration temperature, and when all operations are completed in the low temperature black body furnace 3, the left and right position control motor 12 ) Is moved to the measurement position of the high temperature black body furnace (4).
따라서 상기 설명한 바와 같은 본 고안에 의하면, 광학이나 적외선 복사율을 이용한 비접촉식 복사온도계의 성능 검사 및 교정시 광원과 온도계 사이의 위치 및 거리를 자동으로 정확히 조절하여 온도계 초점의 불일치에 따른 오차를 제거하며 제철소에서와 같이 다양한 형상의 온도계를 다량으로 교정할 경우 신속하고 정확하게 교정작업을 수행할 수 있어 교정신뢰도 및 작업능률이 향상될 수 있다.Therefore, according to the present invention as described above, when performing the performance test and calibration of the non-contact radiation thermometer using optical or infrared radiation rate, automatically adjust the position and distance between the light source and the thermometer accurately and eliminate the error due to the mismatch of the thermometer focus, As in the case of calibrating a large amount of thermometers of various shapes can be performed quickly and accurately calibration can improve the reliability and efficiency of calibration.
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| Application Number | Priority Date | Filing Date | Title |
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| KR2019980026626U KR200327382Y1 (en) | 1998-12-26 | 1998-12-26 | Automatic calibration device of radiation thermometer used in steel mill |
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| KR2019980026626U KR200327382Y1 (en) | 1998-12-26 | 1998-12-26 | Automatic calibration device of radiation thermometer used in steel mill |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030047262A (en) * | 2001-12-10 | 2003-06-18 | 한영수 | Preheating jig for temperature controller |
| KR100445345B1 (en) * | 2001-12-12 | 2004-08-25 | 한영수 | A combination test jig for temperature controller |
| KR100445344B1 (en) * | 2001-12-12 | 2004-08-25 | 한영수 | A test jig for temperature controller |
| KR100465365B1 (en) * | 2001-12-12 | 2005-01-13 | 한영수 | Temperature controller |
| KR100887871B1 (en) * | 2001-12-26 | 2009-03-06 | 주식회사 포스코 | Reform apparatus for thermometer |
| KR100914894B1 (en) * | 2007-08-27 | 2009-08-31 | 주훈 | System and method for automatically temperature correcting thermal imaging camera |
| KR101050170B1 (en) * | 2009-09-02 | 2011-07-19 | 국방과학연구소 | Blackbody assembly for infrared detector calibration |
| KR101683563B1 (en) * | 2015-12-03 | 2016-12-07 | 한국항공우주연구원 | Purge box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101055693B1 (en) | 2009-05-18 | 2011-08-11 | 한국광기술원 | Infrared detector inspection device |
| KR101789081B1 (en) | 2016-10-31 | 2017-10-23 | 한국항공우주연구원 | Purge box |
| KR101862106B1 (en) * | 2017-08-24 | 2018-05-29 | 오광석 | Calibration method of temperature measurement device using radiation heat image measurement unit camera |
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- 1998-12-26 KR KR2019980026626U patent/KR200327382Y1/en not_active IP Right Cessation
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030047262A (en) * | 2001-12-10 | 2003-06-18 | 한영수 | Preheating jig for temperature controller |
| KR100445345B1 (en) * | 2001-12-12 | 2004-08-25 | 한영수 | A combination test jig for temperature controller |
| KR100445344B1 (en) * | 2001-12-12 | 2004-08-25 | 한영수 | A test jig for temperature controller |
| KR100465365B1 (en) * | 2001-12-12 | 2005-01-13 | 한영수 | Temperature controller |
| KR100887871B1 (en) * | 2001-12-26 | 2009-03-06 | 주식회사 포스코 | Reform apparatus for thermometer |
| KR100914894B1 (en) * | 2007-08-27 | 2009-08-31 | 주훈 | System and method for automatically temperature correcting thermal imaging camera |
| KR101050170B1 (en) * | 2009-09-02 | 2011-07-19 | 국방과학연구소 | Blackbody assembly for infrared detector calibration |
| KR101683563B1 (en) * | 2015-12-03 | 2016-12-07 | 한국항공우주연구원 | Purge box |
| CN112247965A (en) * | 2020-10-26 | 2021-01-22 | 北京市计量检测科学研究院 | Actuator for calibrating dry body type temperature calibrator |
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| Publication number | Publication date |
|---|---|
| KR200327382Y1 (en) | 2003-12-24 |
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