JPH08295950A - Method for measuring temperature and instrument for measuring temperature - Google Patents
Method for measuring temperature and instrument for measuring temperatureInfo
- Publication number
- JPH08295950A JPH08295950A JP10222795A JP10222795A JPH08295950A JP H08295950 A JPH08295950 A JP H08295950A JP 10222795 A JP10222795 A JP 10222795A JP 10222795 A JP10222795 A JP 10222795A JP H08295950 A JPH08295950 A JP H08295950A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- water
- measured
- water column
- radiation thermometer
- 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.)
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Links
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Control Of Heat Treatment Processes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば金属板の表面温
度を測定する温度測定方法及び温度測定装置に関し、特
に、搬送中に水冷される鋼板の表面温度を搬送中に測定
するのに好適な温度測定方法及び温度測定装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature measuring method and a temperature measuring apparatus for measuring the surface temperature of a metal plate, for example, and is particularly suitable for measuring the surface temperature of a steel sheet cooled by water during transportation. Temperature measuring method and temperature measuring device.
【０００２】[0002]
【従来の技術】搬送中の鋼板を水冷する水冷却ラインな
どにおいて鋼板温度を制御しながら鋼板を冷却する場
合、搬送中の鋼板の表面温度を放射温度計を用いて測定
することがある。このような水冷却ラインなどにおいて
搬送中の鋼板の表面温度を放射温度計を用いて測定する
際には、鋼板と放射温度計との間に水蒸気が存在したり
冷却水が飛散してきたりすることがある。鋼板と放射温
度計との間に水蒸気や冷却水が存在していると、鋼板か
ら放射された放射エネルギがこれら水蒸気や冷却水に吸
収されて温度測定に誤差を生じたり、冷却水により放射
温度計が濡れて温度測定が不安定になったりするおそれ
がある。2. Description of the Related Art When cooling a steel sheet while controlling the steel sheet temperature in a water cooling line for cooling the steel sheet during transportation, the surface temperature of the steel sheet during transportation may be measured using a radiation thermometer. When measuring the surface temperature of a steel sheet being conveyed in such a water cooling line using a radiation thermometer, there may be water vapor between the steel sheet and the radiation thermometer, or the cooling water may be scattered. There is. If water vapor or cooling water is present between the steel plate and the radiation thermometer, the radiation energy radiated from the steel sheet is absorbed by these water vapor or cooling water, causing an error in the temperature measurement. The meter may get wet and the temperature measurement may become unstable.
【０００３】そこで、このような温度測定誤差や温度測
定の不安定を無くす技術として、ノズルから水を噴出
し、防水した放射温度計と鋼板との間に水柱を形成し、
この鋼板から放射される放射エネルギのうち水柱が吸収
する放射エネルギの分を、水柱の高さに基づいて補正し
ながら、放射温度計を用いて鋼板の表面温度を測定する
技術が提案されている（特公平３−６９９７４号公報参
照）。この技術によれば、放射温度計と鋼板との間に水
柱が形成されるので水蒸気や飛散水が存在せず、安定し
て正確な温度測定ができる。Therefore, as a technique for eliminating such an error in temperature measurement and instability in temperature measurement, water is jetted from a nozzle to form a water column between a waterproof radiation thermometer and a steel plate.
A technique has been proposed in which the surface temperature of the steel sheet is measured using a radiation thermometer while correcting the radiant energy absorbed by the water column out of the radiant energy radiated from the steel sheet based on the height of the water column. (See Japanese Patent Publication No. 3-69974). According to this technique, since a water column is formed between the radiation thermometer and the steel plate, there is no water vapor or splashed water, and stable and accurate temperature measurement can be performed.
【０００４】[0004]
【発明が解決しようとする課題】ところが、上記した従
来の温度測定方法では、放射温度計と鋼板との間に水蒸
気や飛散水が存在しないようにするためにノズルから相
当勢いよく水を噴出させる。このため、この水によって
鋼板が冷却され、この冷却された部分の表面温度が測定
されることとなる。水冷却ラインなどにおいて搬送中の
鋼板の表面温度を測定するに当たっては、本来、温度測
定位置よりも搬送方向上流側で冷却された鋼板の表面温
度を測定するものであるが、上記した従来の温度測定方
法では、上述したように、温度測定中に鋼板が冷却され
その冷却された部分の表面温度が測定される。このた
め、温度測定位置よりも搬送方向上流側で冷却された鋼
板そのものの表面温度が測定できないという問題があ
る。また、温度測定の際に形成する水柱により鋼板が部
分的に冷却されるので、鋼板に冷却むらが生じて鋼板の
材質が不均一になるという問題もある。However, in the above-mentioned conventional temperature measuring method, water is spouted from the nozzle considerably vigorously in order to prevent water vapor and scattered water from existing between the radiation thermometer and the steel plate. . Therefore, the steel plate is cooled by this water, and the surface temperature of this cooled portion is measured. When measuring the surface temperature of the steel sheet being conveyed in a water cooling line, etc., originally, the surface temperature of the steel sheet cooled at the upstream side in the conveying direction from the temperature measurement position is measured, but the conventional temperature mentioned above is used. In the measuring method, as described above, the steel sheet is cooled during the temperature measurement and the surface temperature of the cooled portion is measured. Therefore, there is a problem in that the surface temperature of the steel sheet itself cooled on the upstream side of the temperature measurement position in the transport direction cannot be measured. Further, since the steel plate is partially cooled by the water column formed during the temperature measurement, there is a problem that the steel plate has uneven cooling and the material of the steel plate becomes uneven.
【０００５】本発明は、上記事情に鑑み、温度測定する
際に被測定物の表面温度低下を抑えてその表面温度を測
定できるとともに、被測定物の冷却むらを低減した温度
測定方法及び温度測定装置を提供することを目的とす
る。In view of the above-mentioned circumstances, the present invention is capable of suppressing the surface temperature drop of an object to be measured at the time of temperature measurement and measuring the surface temperature of the object, and a temperature measuring method and temperature measuring method in which unevenness of cooling of the object is reduced. The purpose is to provide a device.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
の本発明の温度測定方法は、被測定物から放射された放
射エネルギに基づいてこの被測定物の表面温度を測定す
る放射温度計と上記被測定物との間に水柱を形成し、こ
の被測定物から放射された放射エネルギのうち上記水柱
が吸収した放射エネルギの分を補正しながら、上記放射
温度計を用いて上記被測定物の表面温度を測定する温度
測定方法において、上記水柱を形成するに当たり、この
水柱の温度を６０℃以上にすることを特徴とするもので
ある。The temperature measuring method of the present invention for achieving the above object comprises a radiation thermometer for measuring the surface temperature of an object to be measured based on the radiant energy emitted from the object to be measured. A water column is formed between the object to be measured and the radiation thermometer absorbs the radiant energy absorbed by the water column among the radiant energy emitted from the object to be measured, and the object to be measured is measured using the radiation thermometer. In the temperature measuring method for measuring the surface temperature, the temperature of the water column is set to 60 ° C. or higher in forming the water column.
【０００７】また、上記目的を達成するための本発明の
温度測定装置は、被測定物から放射された放射エネルギ
に基づいてこの被測定物の表面温度を測定する放射温度
計と、この放射温度計と上記被測定物との間に水柱を形
成する、内部に上記放射温度計が配置されたノズルヘッ
ダと、上記水柱の高さを測定する測定器とを備え、上記
ノズルヘッダを用いて上記放射温度計と上記被測定物と
の間に水柱を形成し、上記被測定物から放射された放射
エネルギのうち上記水柱が吸収した放射エネルギの分を
上記水柱の高さに基づいて補正しながら、上記放射温度
計を用いて上記被測定物の表面温度を測定する温度測定
装置において、水を貯え、この水を上記ノズルヘッダに
供給する水供給手段と、この水供給手段に貯えられた水
を加熱する加熱手段と、上記水供給手段に貯えられた水
が所定範囲内の温度になるように上記加熱手段を制御す
る制御手段とを備えたことを特徴とするものである。The temperature measuring apparatus of the present invention for achieving the above object is a radiation thermometer for measuring the surface temperature of an object to be measured based on the radiant energy radiated from the object to be measured, and the radiation temperature. A water column is formed between the meter and the object to be measured, the nozzle header in which the radiation thermometer is arranged, and a measuring device for measuring the height of the water column are provided, and the nozzle header is used to A water column is formed between the radiation thermometer and the object to be measured, and the amount of radiant energy absorbed by the water column among the radiant energy emitted from the object to be measured is corrected based on the height of the water column. A temperature measuring device for measuring the surface temperature of the object to be measured using the radiation thermometer, water supply means for storing water and supplying the water to the nozzle header, and water stored in the water supply means Heating hands to heat When, it is characterized in that the water which is stored in the water supply means and a control means for controlling the heating means so that the temperature within a predetermined range.
【０００８】[0008]
【作用】本発明の温度測定方法によれば、被測定物と放
射温度計との間に水柱が形成されるので、水柱が形成さ
れた部分には水蒸気や飛散水が存在せず、これら水蒸気
や飛散水に起因する温度測定誤差を無くすことができ
る。さらに、水柱の温度が６０℃以上あるので、水柱が
接触している被測定物表面に沸騰膜が形成され易くな
り、被測定物の表面温度の低下を抑えてその表面温度を
測定でき、また、被測定物の冷却むらも低減される。According to the temperature measuring method of the present invention, since the water column is formed between the object to be measured and the radiation thermometer, there is no water vapor or scattered water in the portion where the water column is formed. It is possible to eliminate temperature measurement errors due to water splashes. Further, since the temperature of the water column is 60 ° C. or higher, a boiling film is easily formed on the surface of the measured object in contact with the water column, and the surface temperature can be measured while suppressing a decrease in the surface temperature of the measured object. The cooling unevenness of the measured object is also reduced.
【０００９】また、本発明の温度測定装置によれば、水
供給手段に貯えられた水が加熱手段と制御手段により、
所定範囲内の温度になるように加熱される。この所定範
囲内の温度として、ノズルヘッダを用いて形成された水
柱が接触する被測定物表面に沸騰膜が形成される温度を
選択することにより、被測定物の表面温度の低下を抑え
てその表面温度を測定できるだけでなく被測定物の冷却
むらも低減される。Further, according to the temperature measuring device of the present invention, the water stored in the water supply means is changed by the heating means and the control means.
It is heated to a temperature within a predetermined range. As the temperature within this predetermined range, by selecting the temperature at which the boiling film is formed on the surface of the object to be measured in contact with the water column formed using the nozzle header, it is possible to suppress the decrease in the surface temperature of the object to be measured. Not only the surface temperature can be measured, but also the uneven cooling of the measured object is reduced.
【００１０】[0010]
【実施例】以下、図面を参照して本発明の温度測定方法
及び温度測定装置の一実施例を説明する。 ［第１実施例］図１は、本発明の温度測定装置の一実施
例を使ってロールの温度を測定している状態を示す模式
図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the temperature measuring method and the temperature measuring apparatus of the present invention will be described below with reference to the drawings. [First Embodiment] FIG. 1 is a schematic view showing a state in which the temperature of a roll is measured by using an embodiment of the temperature measuring apparatus of the present invention.
【００１１】ここでは、温度測定装置１０を用いて、矢
印１２ａで示す方向に回転しているロール（本発明にい
う被測定物の一例）１２から放射された放射エネルギに
基づいてロール１２の表面温度を測定する例を示す。温
度測定装置１０は、ロール１２から放射された放射エネ
ルギに基づいてロール１２の表面温度を測定する放射温
度計１４と、放射温度計１４とロール１２との間に水柱
１６を形成するノズルヘッダ１８と、ノズルヘッダ１８
に水を供給する水供給器２０を備えている。水供給器２
０には、図示しない供給口から供給された水２０ａが貯
えられており、貯えられた水２０ａはヒータ（本発明に
いう加熱手段の一例）２２を使って加熱される。加熱さ
れた水はポンプ（図示せず）を用いてノズルヘッダ１８
に供給される。水供給器２０に貯えられた水２０ａの温
度は温度計２４で測定されており、水２０ａが所定範囲
内の温度になるように、ヒータ２２が制御器２６で制御
される。放射温度計１４は、ノズルヘッダ１８内に配置
された防水構造の容器２８に収容されており、温度測定
が不安定にならないようになっている。容器２８の、放
射温度計１４の観測面１４ａに対向する部分には、ガラ
ス窓２８ａが設置されている。ロール１２から放射され
た放射エネルギは、水柱１６とガラス窓２８ａを介して
放射温度計１４に観測され、放射温度計１４では、観測
された放射エネルギが周知の方法で温度に換算される。
この換算に当たっては、ロール１２から放射された放射
エネルギのうち、ガラス窓２８ａが吸収した放射エネル
ギの分が補正される。Here, the surface of the roll 12 is measured based on the radiant energy radiated from the roll (an example of the object to be measured according to the invention) 12 rotating in the direction indicated by the arrow 12a using the temperature measuring device 10. An example of measuring temperature will be shown. The temperature measuring device 10 includes a radiation thermometer 14 that measures the surface temperature of the roll 12 based on the radiant energy emitted from the roll 12, and a nozzle header 18 that forms a water column 16 between the radiation thermometer 14 and the roll 12. And the nozzle header 18
A water supply device 20 for supplying water to is provided. Water supplier 2
At 0, water 20a supplied from a supply port (not shown) is stored, and the stored water 20a is heated by a heater (an example of a heating means according to the invention) 22. The heated water is supplied to the nozzle header 18 using a pump (not shown).
Is supplied to. The temperature of the water 20a stored in the water supplier 20 is measured by the thermometer 24, and the heater 22 is controlled by the controller 26 so that the temperature of the water 20a falls within a predetermined range. The radiation thermometer 14 is housed in a waterproof container 28 arranged in the nozzle header 18 so that the temperature measurement does not become unstable. A glass window 28a is installed in a portion of the container 28 facing the observation surface 14a of the radiation thermometer 14. The radiant energy radiated from the roll 12 is observed by the radiant thermometer 14 via the water column 16 and the glass window 28a, and the radiant thermometer 14 converts the observed radiant energy into temperature by a known method.
In this conversion, of the radiant energy radiated from the roll 12, the radiant energy absorbed by the glass window 28a is corrected.
【００１２】ロール１２から放射された放射エネルギの
うち、水柱１６が吸収した放射エネルギの分の補正は、
超音波探触子３０を備えた超音波距離計（本発明にいう
測定器の一例）３２と補正器３４とを用いて行われる。
超音波探触子３０の前方には、水柱１６と同じ高さの水
柱１７が形成されており、この水柱１７の高さを超音波
距離計３２を用いて測定し、周知の吸収率の式（例え
ば、特公平３−６９９７４号公報参照）を用いることに
より、水柱１６が吸収した放射エネルギが得られる。補
正器３４では、放射温度計１４で得られた温度が、水柱
１６で吸収された放射エネルギの分を考慮して補正さ
れ、この補正によって得られた温度を表す信号は表示器
３６に入力される。この表示器３６では、入力された信
号に放射率補正等が行われ、その結果がロール１２の表
面温度として表示される。尚、上記した例では、２つの
水柱１６，１７を形成する構成にしたが、水柱１６，１
７を合わせた１つの水柱を形成する構成のノズルヘッダ
を使ってもよい。Of the radiant energy radiated from the roll 12, the radiant energy absorbed by the water column 16 is corrected by
This is performed using an ultrasonic range finder (an example of the measuring device according to the invention) 32 equipped with the ultrasonic probe 30 and a corrector 34.
A water column 17 having the same height as the water column 16 is formed in front of the ultrasonic probe 30, and the height of the water column 17 is measured by using an ultrasonic range finder 32, and a well-known absorption rate formula is used. By using (for example, Japanese Patent Publication No. 3-69974), the radiant energy absorbed by the water column 16 can be obtained. In the corrector 34, the temperature obtained by the radiation thermometer 14 is corrected in consideration of the amount of radiant energy absorbed in the water column 16, and the signal representing the temperature obtained by this correction is input to the display 36. It The display 36 performs emissivity correction or the like on the input signal, and the result is displayed as the surface temperature of the roll 12. In the above example, the two water columns 16, 17 are formed, but the water columns 16, 1
You may use the nozzle header of the structure which forms one water column which put together 7.
【００１３】上記した温度測定装置を使ってロール１２
の表面温度を測定したときの測定誤差を図２に示す。こ
の測定誤差を求めるに当たっては、温度測定装置１０の
温度測定位置よりもロール１２の回転方向上流側にロー
ル１２の表面温度を正確に測定できる基準温度計となる
放射温度計を配置し、この基準温度計で測定された温度
と、温度測定装置１０を用いて水柱の温度を変えたとき
に測定された温度との差を求め誤差とした。図２の横軸
は水柱の温度を示し、縦軸は、基準温度計で測定された
温度に対する温度測定装置１０で測定された温度の差を
示す。また、ここでは、ロール表面の温度を７５０℃に
加熱しておいて温度を測定した。Using the temperature measuring device described above, the roll 12
The measurement error when measuring the surface temperature of the is shown in FIG. In determining this measurement error, a radiation thermometer serving as a reference thermometer that can accurately measure the surface temperature of the roll 12 is arranged upstream of the temperature measurement position of the temperature measurement device 10 in the rotation direction of the roll 12, and the reference The difference between the temperature measured by the thermometer and the temperature measured when the temperature of the water column was changed by using the temperature measuring device 10 was determined as the error. The horizontal axis of FIG. 2 represents the temperature of the water column, and the vertical axis represents the difference between the temperature measured by the reference thermometer and the temperature measured by the temperature measuring device 10. Moreover, here, the temperature of the roll surface was heated to 750 ° C. and the temperature was measured.
【００１４】図２に示すように、水柱の温度を６０℃以
上にすると誤差が−２０℃以下になり、精度良く温度測
定できる。水柱の温度を６０℃以上にすると温度測定精
度が向上する理由は、水柱の温度が６０℃以上のときは
水柱が接触するロール表面に沸騰膜が形成され易くな
り、この沸騰膜が形成された部分では水柱の冷却能力が
軽減されるからである。 ［第２実施例］図３は搬送中に冷却されている鋼板の表
面温度を、温度測定装置１０（図１参照）に、搬送中の
鋼板の速度を測定するＰＬＧ５２や鋼板の板厚情報を上
位Ｐ／Ｃ（図示せず）から取り込むＰ／Ｃ５３を追加し
た温度測定装置を用いて測定している様子を示す模式図
である。As shown in FIG. 2, when the temperature of the water column is 60 ° C. or higher, the error becomes −20 ° C. or lower, and the temperature can be measured accurately. The reason why the temperature measurement accuracy is improved when the temperature of the water column is 60 ° C. or more is that when the temperature of the water column is 60 ° C. or more, a boiling film is easily formed on the roll surface with which the water column comes into contact, and this boiling film is formed. This is because the cooling capacity of the water column is reduced in the part. [Second Embodiment] FIG. 3 shows the surface temperature of the steel sheet being cooled during the transportation, and the temperature measuring device 10 (see FIG. 1) with the PLG 52 for measuring the speed of the steel sheet during the transportation and the thickness information of the steel sheet. It is a schematic diagram which shows a mode that it measures using the temperature measuring device which added P / C53 taken in from upper P / C (not shown).
【００１５】矢印４０ａで示す方向にテーブルローラ５
０で搬送されている鋼板４０は２つの冷却用ノズル４
２，４４からの冷却水で冷却されており、冷却用ノズル
４２，４４の間における鋼板の表面温度を温度測定装置
１０を用いて測定した。この測定に当たっては、テーブ
ルローラ５１にＰＬＧ５２を設置し補正器３４で通板速
度を求め、上位Ｐ／Ｃ（図示せず）から板厚情報を取込
み、補正器３４内に設けてある通板速度、板厚、水温の
関係から最適水温を求め、制御器２６にて水温を制御し
た。尚、補正器３４には、温度測定誤差、板厚、通板速
度、水温の関係式が記載されている。この関係式は、実
施例１の温度測定により得ることができる。The table roller 5 is moved in the direction indicated by the arrow 40a.
The steel plate 40 conveyed at 0 has two cooling nozzles 4
The surface temperature of the steel sheet, which is cooled with cooling water from Nos. 2 and 44 and between the cooling nozzles 42 and 44, was measured using the temperature measuring device 10. In this measurement, the PLG 52 is installed on the table roller 51, the plate passing speed is obtained by the corrector 34, the plate thickness information is taken in from the upper P / C (not shown), and the plate passing speed is provided in the corrector 34. The optimum water temperature was obtained from the relationship among the plate thickness and the water temperature, and the water temperature was controlled by the controller 26. The compensator 34 includes a relational expression of temperature measurement error, plate thickness, plate passing speed, and water temperature. This relational expression can be obtained by the temperature measurement of the first embodiment.
【００１６】図４にその測定チャートを示す。図４の横
軸は、温度測定の開始からの時間を示し、縦軸は、測定
された温度と超音波距離計により測定された距離とを示
す。鋼板４０の形状不良点では距離が測定できず表面温
度が低く測定されている。しかし外乱の影響が無い場合
は±５℃の誤差で表面温度を安定して測定できた。FIG. 4 shows the measurement chart. The horizontal axis of FIG. 4 represents the time from the start of temperature measurement, and the vertical axis represents the measured temperature and the distance measured by the ultrasonic range finder. At the defective shape of the steel plate 40, the distance cannot be measured and the surface temperature is low. However, when there was no influence of disturbance, the surface temperature could be measured stably with an error of ± 5 ° C.
【００１７】[0017]
【発明の効果】以上説明したように本発明によれば、被
測定物と放射温度計との間に形成された水柱の温度が６
０℃以上あるので、この水柱が接触している被測定物表
面に沸騰膜が形成され易くなり、被測定物の表面温度低
下を抑えてその温度を正確に測定でき、また、被測定物
の冷却むらも低減される。As described above, according to the present invention, the temperature of the water column formed between the object to be measured and the radiation thermometer is 6
Since the temperature is 0 ° C. or higher, a boiling film is easily formed on the surface of the object to be measured in contact with the water column, the temperature decrease of the object to be measured can be suppressed, and the temperature can be accurately measured. Uneven cooling is also reduced.
【図１】本発明の温度測定装置の一実施例を示す模式図
である。FIG. 1 is a schematic view showing an embodiment of a temperature measuring device of the present invention.
【図２】図１に示す温度測定装置を使ってロールの温度
を測定したときの測定誤差を表すグラフである。FIG. 2 is a graph showing a measurement error when the temperature of the roll is measured using the temperature measuring device shown in FIG.
【図３】搬送中に冷却されている鋼板の表面温度を温度
測定装置を用いて測定している様子を示す模式図であ
る。FIG. 3 is a schematic diagram showing how the surface temperature of a steel sheet cooled during transportation is measured by using a temperature measuring device.
【図４】水柱の温度を７５℃にして鋼板の搬送速度を変
えたときの温度測定誤差を示すグラフである。FIG. 4 is a graph showing a temperature measurement error when the temperature of the water column is set to 75 ° C. and the transport speed of the steel sheet is changed.
１０ 温度測定装置 １２ ロール １４ 放射温度計 １６ 水柱 １８ ノズルヘッダ ２０ 水供給器 ２０ａ 水 ２２ ヒータ ２６ 制御器 ３２ 超音波距離計 ４０ 鋼板 10 Temperature Measuring Device 12 Roll 14 Radiation Thermometer 16 Water Column 18 Nozzle Header 20 Water Supply Device 20a Water 22 Heater 26 Controller 32 Ultrasonic Distance Meter 40 Steel Plate
Claims (2)
基づいて該被測定物の表面温度を測定する放射温度計と
前記被測定物との間に水柱を形成し、該被測定物から放
射された放射エネルギのうち前記水柱が吸収した放射エ
ネルギの分を補正しながら、前記放射温度計を用いて前
記被測定物の表面温度を測定する温度測定方法におい
て、 前記水柱を形成するに当たり、該水柱の温度を６０℃以
上にすることを特徴とする温度測定方法。1. A water column is formed between a radiation thermometer for measuring the surface temperature of the object to be measured based on radiant energy emitted from the object to be measured and the object to be measured, and the water column is radiated from the object to be measured. In the temperature measuring method of measuring the surface temperature of the object to be measured using the radiation thermometer while correcting the amount of the radiant energy absorbed by the water column among the radiated energy, in forming the water column, A temperature measuring method, wherein the temperature of the water column is set to 60 ° C. or higher.
基づいて該被測定物の表面温度を測定する放射温度計
と、該放射温度計と前記被測定物との間に水柱を形成す
る、内部に前記放射温度計が配置されたノズルヘッダ
と、前記水柱の高さを測定する測定器とを備え、前記ノ
ズルヘッダを用いて前記放射温度計と前記被測定物との
間に水柱を形成し、前記被測定物から放射された放射エ
ネルギのうち前記水柱が吸収した放射エネルギの分を前
記水柱の高さに基づいて補正しながら、前記放射温度計
を用いて前記被測定物の表面温度を測定する温度測定装
置において、 水を貯え、該水を前記ノズルヘッダに供給する水供給手
段と、 該水供給手段に貯えられた水を加熱する加熱手段と、 前記水供給手段に貯えられた水が所定範囲内の温度にな
るように前記加熱手段を制御する制御手段とを備えたこ
とを特徴とする温度測定装置。2. A radiation thermometer for measuring the surface temperature of the measured object based on the radiant energy radiated from the measured object, and a water column is formed between the radiation thermometer and the measured object. A nozzle header in which the radiation thermometer is arranged, and a measuring device for measuring the height of the water column are provided, and a water column is formed between the radiation thermometer and the object to be measured using the nozzle header. Then, while correcting the amount of the radiant energy absorbed by the water column among the radiant energy emitted from the measured object based on the height of the water column, the surface temperature of the measured object using the radiation thermometer. In the temperature measuring device for measuring the water, water supply means for storing water and supplying the water to the nozzle header, heating means for heating the water stored in the water supply means, and water stored in the water supply means The water will reach a temperature within the specified range And a control unit for controlling the heating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10222795A JP3538956B2 (en) | 1995-04-26 | 1995-04-26 | Temperature measuring method and temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10222795A JP3538956B2 (en) | 1995-04-26 | 1995-04-26 | Temperature measuring method and temperature measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08295950A true JPH08295950A (en) | 1996-11-12 |
| JP3538956B2 JP3538956B2 (en) | 2004-06-14 |
Family
ID=14321777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10222795A Expired - Fee Related JP3538956B2 (en) | 1995-04-26 | 1995-04-26 | Temperature measuring method and temperature measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3538956B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008164626A (en) * | 2008-02-05 | 2008-07-17 | Sumitomo Metal Ind Ltd | Method and apparatus for measuring surface temperature of steel material |
| WO2014030661A1 (en) | 2012-08-22 | 2014-02-27 | 新日鐵住金株式会社 | Surface temperature measurement device and surface temperature measurement method |
-
1995
- 1995-04-26 JP JP10222795A patent/JP3538956B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008164626A (en) * | 2008-02-05 | 2008-07-17 | Sumitomo Metal Ind Ltd | Method and apparatus for measuring surface temperature of steel material |
| WO2014030661A1 (en) | 2012-08-22 | 2014-02-27 | 新日鐵住金株式会社 | Surface temperature measurement device and surface temperature measurement method |
| US9523611B2 (en) | 2012-08-22 | 2016-12-20 | Nippon Steel & Sumitomo Metal Corporation | Surface temperature measuring apparatus and surface temperature measuring method |
| AU2013306802B2 (en) * | 2012-08-22 | 2017-02-23 | Nippon Steel Corporation | Surface temperature measurement device and surface temperature measurement method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3538956B2 (en) | 2004-06-14 |
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