JPS5983019A - Temperature measuring device for body in heating furnace - Google Patents
Temperature measuring device for body in heating furnaceInfo
- Publication number
- JPS5983019A JPS5983019A JP57193835A JP19383582A JPS5983019A JP S5983019 A JPS5983019 A JP S5983019A JP 57193835 A JP57193835 A JP 57193835A JP 19383582 A JP19383582 A JP 19383582A JP S5983019 A JPS5983019 A JP S5983019A
- Authority
- JP
- Japan
- Prior art keywords
- heating furnace
- temperature
- measuring
- detector
- heated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000005855 radiation Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000001179 pupillary effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- G01J5/0044—Furnaces, ovens, kilns
-
- 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
- G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
- G01J5/064—Ambient temperature sensor; Housing temperature sensor; Constructional details thereof
-
- 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
- G01J5/0818—Waveguides
-
- 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
-
- 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
- G01J5/70—Passive compensation of pyrometer measurements, e.g. using ambient temperature sensing or sensing of temperature within housing
-
- 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
Abstract
Description
【発明の詳細な説明】
（１） 発明の分野
この発明は、加熱炉内で加熱されている物体の温度を測
定する装置に関するものでりる。DETAILED DESCRIPTION OF THE INVENTION (1) Field of the Invention The present invention relates to an apparatus for measuring the temperature of an object being heated in a heating furnace.
（２） 従来技術
加熱炉内で加熱される移動物体の温度を測定するには放
射温度計を用いる方法かめる。この揚台。(2) Prior Art A radiation thermometer is used to measure the temperature of a moving object being heated in a heating furnace. This platform.
炉壁から放射されるエネルギーが物体を反射して放射温
度計に入射して測定誤差を招いていた。Energy radiated from the reactor walls reflected off objects and entered the radiation thermometer, causing measurement errors.
この誤差を除去するため、炉壁がらの放射エネルギーを
少なくするだめの測定管を芙出させた勺。In order to eliminate this error, a measuring tube was inserted to reduce the radiant energy from the furnace wall.
Ｆ壁温度全測定して補正を行ったシしていた。All F wall temperatures were measured and corrected.
しかしながら７いずれの方法でも、装部が複雑で、高価
なものとなる欠点があった。However, in any of the 7 methods, the mounting part is complicated and expensive.
（３）発明の目的
とのブる明の目的は１以上の点に麩み、イメージセンサ
を用いた検出器により、測＠２いっそう容易にした加熱
炉内物体の測温装置全提供することである。(3) The objective of the invention is to provide a complete temperature measuring device for objects inside a heating furnace that is easier to measure by using a detector using an image sensor. It is.
（４）発明の実施例
第１図は、この発明の一実施例を７バす構成祝り］図で
ある。(4) Embodiment of the Invention FIG. 1 is a diagram showing an embodiment of the invention.
図において、１は加熱炉、２は加熱炉１内に位置し加熱
される物体、３は加熱炉１の炉壁よシ内部に突出された
開口を有する測定管、４は測定管３とともに加熱炉１内
に突出もれた保護管、５は測定管３全通して物体２から
の放射エネルギーまたは保護管４の底部からの放射エネ
ルギーを受光するＣＯＤのようなイメージセンサを用い
た検出器、６は検出器５の出力から物体２の正しい温度
を演舞、するマイクロコンピュータのような演算装置で
ある。なお、検出器５と演算装置６とは一体に構成して
もよい。In the figure, 1 is a heating furnace, 2 is an object located in the heating furnace 1 and heated, 3 is a measuring tube having an opening protruding from the wall of the heating furnace 1 into the inside, and 4 is heated together with the measuring tube 3. A protective tube protruding into the furnace 1; 5 a detector using an image sensor such as a COD that receives radiant energy from the object 2 or from the bottom of the protective tube 4 through the entire measuring tube 3; 6 is an arithmetic device such as a microcomputer that calculates the correct temperature of the object 2 from the output of the detector 5. Note that the detector 5 and the arithmetic device 6 may be configured integrally.
加熱炉１０内部温度は空洞放射の効果によｐ一様な温度
とされ、加熱炉ｌの温度をＴｗ、放射率をＥｗ 、物体
２の温度をＴｍ 、放射率Ｅｍとすれば次式が成シ立つ
。The internal temperature of the heating furnace 10 is made to be a uniform temperature p due to the effect of cavity radiation.If the temperature of the heating furnace 1 is Tw, the emissivity is Ew, the temperature of the object 2 is Tm, and the emissivity Em is the following equation. Stand up.
Ｒ（Ｔｓ）二ＥｍＲ（Ｔｍ）＋７（１−Ｅｍ） Ｅｖｔ
ｍ＜Ｔｗ）−・−・−（１）ここでＲ（Ｔｓ）は、測定
管３全通して検出器５に入射する放射エネルギー、 Ｒ
（Ｔｍ） 、 Ｒ（Ｔｗ） は物体２．加熱炉１の黒
体相当の放射エネルギーで。R(Ts)2EmR(Tm)+7(1-Em) Evt
m<Tw) - - - - (1) Here, R (Ts) is the radiant energy that passes through the entire measurement tube 3 and enters the detector 5, R
(Tm) and R(Tw) are object 2. With radiant energy equivalent to the blackbody of heating furnace 1.
右辺第１項のＥｍＲ（Ｔｍ）は物体２からの放射エネル
ギー、第２項の１（１−Ｅｍ） ＥｗＲ（Ｔｗ） は
、加熱炉１からの放射エネルギーＥｗＲ（Ｔｗ）が物体
２で反射率（１−Ｅｍ）で反射する放射エイ・ルキーで
にはその混入率である。The first term on the right side, EmR(Tm), is the radiant energy from the object 2, and the second term, 1(1-Em) EwR(Tw), is the reflectance of the radiant energy EwR(Tw) from the heating furnace 1 at the object 2. In the case of radiation reflected by (1-Em), this is the mixing rate.
（１）式をＲ（Ｔｍ）について解けば次式となる。Solving equation (1) for R(Tm) yields the following equation.
つま、ｊ）、Ｅｍ、Ｅｗ等は既知でろ５．Ｒ（’Ｌ”ｓ
）は測定管３よりの放射エネルギー、 Ｒ（’ＴＶ）は
炉内の雰囲気温度と一致している保護管４の底部からの
放によシ（２）式のような演算を行うことにより９ｗＪ
俸２の正しい温度Ｔｍを求めることができる。Tsuma, j), Em, Ew, etc. are already known.5. R('L”s
) is the radiant energy from the measuring tube 3, and R('TV) is the radiation energy from the bottom of the protective tube 4, which matches the ambient temperature in the furnace.
The correct temperature Tm of Salary 2 can be found.
第３図は他の実施例を示し、加熱炉１内に突出した測定
管３のみを用意し、物体２および伸］建管３の内壁から
の放射エネルギーをイメージスキャ是
すを用いた検出器５で県４図のようにくり返しだ査して
測定し、（２）式のような演算ｔ（Ｔい物体２の正しい
温度Ｔｍを測定することができる。FIG. 3 shows another embodiment, in which only the measuring tube 3 protruding into the heating furnace 1 is prepared, and a detector using an image scan system detects the radiant energy from the object 2 and the inner wall of the open pipe 3. 5, it is possible to measure the correct temperature Tm of the object 2 by repeatedly scanning and measuring it as shown in Figure 4, and calculating the calculation t(T) as shown in equation (2).
なお、測定管３の材質全物体ｌと同一にしておけは放射
率は等しくなシ演算が容易なものとなる。Note that if the material of the measuring tube 3 is made the same as the entire object l, the emissivity will be equal and calculation will be easy.
又、測定管３の熱電対を埋め込み雰囲気温度Ｔｗを測定
するようにしてもよい。Alternatively, a thermocouple may be embedded in the measuring tube 3 to measure the ambient temperature Tw.
（５） 発明の要約
以上述べたように、Ａの発明は、加熱炉内に突出した開
口を有する測定管よシ加熱物体または雰囲気温度を測定
し、演算装置によシ物体の正しい温度を測定するように
した加熱炉内物体の側温装置である。(5) Summary of the Invention As stated above, the invention of A measures the temperature of a heated object or atmosphere using a measuring tube having an opening protruding into a heating furnace, and measures the correct temperature of the object using a calculation device. This is a side heating device for objects in a heating furnace.
（６）発明の効果
空洞放射により一様な温度となっている炉内の雰囲気温
度を測定し、補正演算を行っているので。(6) Effects of the invention The atmospheric temperature inside the furnace, which is kept at a uniform temperature by cavity radiation, is measured and correction calculations are performed.
物体の正しい温度（実体温度）がきわめて正確に第１図
、第３図は、この発明の一実施例を示す構成説明図、第
２図、第４図は動作説明用の信号図である。The correct temperature (actual temperature) of the object can be determined very accurately. FIGS. 1 and 3 are configuration explanatory diagrams showing one embodiment of the present invention, and FIGS. 2 and 4 are signal diagrams for explaining the operation.
１・・・加熱炉、２・・・物体、３・・・測定管、４・
・・保瞳管、５・・・検出器、６・・・演算装置特許出
願人 株式会社 千野製作所1... Heating furnace, 2... Object, 3... Measuring tube, 4...
...Pupillary tube, 5...Detector, 6...Arithmetic device Patent applicant Chino Seisakusho Co., Ltd.
Claims (1)
置において、炉壁より加熱炉内に突出された開口を有す
る測定管と、この測定管によシ加熱物体の温度および雰
囲気温度を測定するイメージセンサを用いた検出器と、
この検出器の出力信号から前記加熱物体の正しい温度を
演算する演算装置とを備えたことを特徴とする加熱炉内
物体の測温装置。 ２、前記測定管とともに閉口を有する保護管を前記加熱
炉内に突出させ、この保護管の底部を前記検出器により
測定し雰囲気温度を測定するようにしたことを特徴とす
る特許請求の範囲第１項記載の加熱炉内物体の測温装置
。 ３、前記測定管に熱電対を埋め込み雰囲気温度を測定す
るようにしたことを特徴とする特許請求の範囲第１項記
載の加熱炉内物体の測温装置。[Claims] 1. A device for measuring the temperature of an object being heated in a heating furnace, including a measuring tube having an opening protruding into the heating furnace from the furnace wall, and a heating object through the measuring tube. a detector using an image sensor that measures the temperature of the room and the ambient temperature;
A temperature measuring device for an object in a heating furnace, comprising: an arithmetic device that calculates the correct temperature of the heated object from the output signal of the detector. 2. A protective tube having a closed end is protruded into the heating furnace together with the measuring tube, and the bottom of the protective tube is measured by the detector to measure the ambient temperature. The temperature measuring device for an object in a heating furnace according to item 1. 3. The temperature measuring device for an object in a heating furnace as set forth in claim 1, characterized in that a thermocouple is embedded in the measuring tube to measure the ambient temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57193835A JPS5983019A (en) | 1982-11-04 | 1982-11-04 | Temperature measuring device for body in heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57193835A JPS5983019A (en) | 1982-11-04 | 1982-11-04 | Temperature measuring device for body in heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5983019A true JPS5983019A (en) | 1984-05-14 |
Family
ID=16314524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57193835A Pending JPS5983019A (en) | 1982-11-04 | 1982-11-04 | Temperature measuring device for body in heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5983019A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03103729A (en) * | 1989-09-18 | 1991-04-30 | Nkk Corp | Radiation thermometer for molten iron |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55155218A (en) * | 1979-05-22 | 1980-12-03 | Nippon Steel Corp | Measuring method of temperature of surface of object in furnace |
| JPS5726721A (en) * | 1980-07-25 | 1982-02-12 | Nippon Steel Corp | Surface temperature measuring device for object in furnace |
-
1982
- 1982-11-04 JP JP57193835A patent/JPS5983019A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55155218A (en) * | 1979-05-22 | 1980-12-03 | Nippon Steel Corp | Measuring method of temperature of surface of object in furnace |
| JPS5726721A (en) * | 1980-07-25 | 1982-02-12 | Nippon Steel Corp | Surface temperature measuring device for object in furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03103729A (en) * | 1989-09-18 | 1991-04-30 | Nkk Corp | Radiation thermometer for molten iron |
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