JPH0547058B2 - - Google Patents
Info
- Publication number
- JPH0547058B2 JPH0547058B2 JP61154863A JP15486386A JPH0547058B2 JP H0547058 B2 JPH0547058 B2 JP H0547058B2 JP 61154863 A JP61154863 A JP 61154863A JP 15486386 A JP15486386 A JP 15486386A JP H0547058 B2 JPH0547058 B2 JP H0547058B2
- Authority
- JP
- Japan
- Prior art keywords
- heating element
- radiation
- tube
- thermometer
- 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.)
- Expired - Lifetime
Links
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
- G01J5/52—Radiation pyrometry, e.g. infrared or optical thermometry using comparison with reference sources, e.g. disappearing-filament pyrometer
- G01J5/53—Reference sources, e.g. standard lamps; Black bodies
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、放射温度計の検定、目盛校正等に
用いられる黒体炉に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a blackbody furnace used for verification, scale calibration, etc. of radiation thermometers.
黒体炉は、放射管（空洞部）の長手方向の温度
一様性を高めるため、たとえば、放射管と発熱体
（ヒータ）との間に均熱管等を設けている。
In order to improve temperature uniformity in the longitudinal direction of the radiant tube (cavity portion), a blackbody furnace is provided with, for example, a soaking tube or the like between the radiant tube and the heating element (heater).
しかしながら、このような構造では、応答性が
遅く、装置が大型となる問題点があつた。
However, such a structure has problems in that the response is slow and the device becomes large.
この発明の目的は、以上の点に鑑み、小型で応
答性の良好な黒体炉を提供することである。 In view of the above points, an object of the present invention is to provide a blackbody furnace that is small and has good responsiveness.
この発明は、円筒状の発熱体の内部に、この発
熱体と空間をもたせてその両端が固定されるとと
もに長手方向に移動可能とされる中央有底部を有
する放射管を設けるようにした黒体炉である。
This invention provides a black body in which a radiant tube is provided inside a cylindrical heating element, having a space with the heating element, fixed at both ends, and having a central bottomed part that is movable in the longitudinal direction. It is a furnace.
第１図は、この発明の一実施例を示す構成説明
図である。
FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention.
図において、１は、両端が開口の円筒状の炭化
ケイ素SiC等よりなる発熱体、２は、発熱体１の
内部に位置し炭化ケイ素SiC等よりなる放射管
（空洞部）で、発熱体１よりも短く小径で、その
両側が絶縁をかねる保持部材３を介して空間をも
たせて発熱体１に固定されている。また、放射管
２の内部には長手方向に移動可能な断面くさび状
の中央有底部（ターゲツト）４が設けられてい
る。発熱体１の外周には、アルミナ等によりなる
絶縁管５，６が空間をもたせて保持部材７，８に
より二重に設けられている。そして、前後の保持
板９，１０間に、さらにセラミツクウールのよう
な保温材１１が設けられている。 In the figure, 1 is a cylindrical heating element made of silicon carbide SiC or the like with openings at both ends, 2 is a radiation tube (cavity part) made of silicon carbide SiC or the like located inside the heating element 1; It is shorter and has a smaller diameter, and is fixed to the heating element 1 with a space on both sides via a holding member 3 which also serves as insulation. Further, inside the radiation tube 2, there is provided a central bottomed portion (target) 4 which is movable in the longitudinal direction and has a wedge-shaped cross section. On the outer periphery of the heating element 1, insulating tubes 5 and 6 made of alumina or the like are provided in a double manner by holding members 7 and 8 with a space between them. Further, a heat insulating material 11 such as ceramic wool is provided between the front and rear holding plates 9 and 10.
そして、放射管２の一方の側の突出した発熱体
１内に絞り管１２を設け、保持板９への取付台１
３に設けられた放射温度計１４により中央有底部
４を視定できるようになつている。放射温度計１
４の出力は演算手段１５等で温度信号とされ、制
御手段１６により発熱体１への電圧・電力の制御
を行う。また、もう一方の開口より被校正放射温
度計で中央有底部４を視定することができる。 A throttle tube 12 is provided inside the heating element 1 protruding from one side of the radiation tube 2, and a mounting base 1 is attached to the holding plate 9.
The central bottomed portion 4 can be visually observed by a radiation thermometer 14 provided at the central bottom portion 3. Radiation thermometer 1
The output of 4 is converted into a temperature signal by the calculation means 15 or the like, and the voltage and power to the heating element 1 are controlled by the control means 16. Further, the central bottomed portion 4 can be visually observed with the radiation thermometer to be calibrated through the other opening.
つまり、発熱体１により、空間をもたせて放射
管２を直接加熱しているので、応答性は良好なも
のとなり、発熱体１と放射管２との空間で空洞放
射をおこし、さらに均熱化が図られる。また、二
重の絶縁管５，６、保温材１１により、いつそう
保温効果を高めている。 In other words, since the radiant tube 2 is directly heated by the heating element 1 with a space, the response is good, and cavity radiation is generated in the space between the heating element 1 and the radiant tube 2, which further equalizes the temperature. is planned. Furthermore, the double insulating tubes 5 and 6 and the heat insulating material 11 enhance the heat retaining effect.
また、放射管２内の中央有底部４は、長手方向
に移動可能なので標準放射温度計により中央有底
部の一方側を視定し、放射温度計１４で他方側を
視定し、標準放射温度計の測温値と、制御に用い
られる放射温度計１４の測温値とが一致するよう
な位置に中央有底部４を位置させ固定することに
より、放射温度計１４を基準温度計とすることが
できる。また、放射温度計１４用に小径の絞り管
１２を設けることにより熱の逃げを減らすことが
できる。 In addition, since the central bottomed part 4 in the radiation tube 2 is movable in the longitudinal direction, one side of the central bottomed part 4 can be viewed with a standard radiation thermometer, the other side can be viewed with a radiation thermometer 14, and the standard radiation temperature The radiation thermometer 14 can be used as a reference thermometer by positioning and fixing the central bottomed part 4 at a position where the temperature value measured by the thermometer matches the temperature value measured by the radiation thermometer 14 used for control. I can do it. Further, by providing a small-diameter throttle tube 12 for the radiation thermometer 14, heat escape can be reduced.
また、応答性の速い放射温度計１４を制御用の
温度計として用いているため、小型の操作端SSR
等を制御手段１６の出力でオン・オフ・パルス駆
動することができ、SiC等の発熱体１の制御が良
好に可能となる。 In addition, since the fast-responsive radiation thermometer 14 is used as a control thermometer, the small operating end SSR
etc. can be pulse-driven on/off by the output of the control means 16, and the heating element 1 made of SiC or the like can be well controlled.
以上述べたように、この発明は、発熱体により
放射管を直接加熱しているので熱応答性が高く、
小型となり、高温用の比較黒体炉として好適であ
る。また、中央有底部は移動可能なので、左右の
開口からの測温値が一致する位置に設けることに
より、制御性が高まり、制御用の放射温度計を基
準として用いることができる。
As described above, this invention has high thermal responsiveness because the radiation tube is directly heated by the heating element.
It is small-sized and suitable as a comparative blackbody furnace for high temperatures. Further, since the central bottomed portion is movable, by providing it at a position where the temperature measurements from the left and right openings match, controllability is improved and a radiation thermometer for control can be used as a reference.
第１図は、この発明の一実施例を示する構成説
明図である。
１…発熱体、２…放射管、３，７，８…保持部
材、４…中央有底部、５，６…絶縁管、９，１０
…保持板、１１…保温材、１２…絞り管、１３…
取付台、１４…放射温度計、１５…演算手段、１
６…制御手段。
FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Heating element, 2... Radiation tube, 3, 7, 8... Holding member, 4... Central bottomed part, 5, 6... Insulating tube, 9, 10
...Holding plate, 11... Heat insulating material, 12... Squeezed tube, 13...
Mounting stand, 14...Radiation thermometer, 15...Calculating means, 1
6...Control means.
Claims (1)
し発熱体と空間をもたせて両端が固定される放射
管と、この放射管の内部に位置し移動可能に設け
られた中央有底部と、前記放射管の一方の側に設
けられた絞り管を介して前記中央有底部を測温す
る放射温度計と、この放射温度計の出力により発
熱体の制御を行う制御手段とを備えたことを特徴
とする黒体炉。 ２ 前記発熱体の外周に空間をもたせて絶縁管を
設けたことを特徴とする特許請求の範囲第１項記
載の黒体炉。[Claims] 1. A cylindrical heating element, a radiation tube located inside the heating element and fixed at both ends with a space between the heating element and the heating element, and a movable radiation tube located inside the radiation tube. a central bottomed part, a radiation thermometer that measures the temperature of the central bottomed part through a throttle tube provided on one side of the radiation tube, and a control that controls a heating element based on the output of the radiation thermometer. A blackbody furnace characterized by comprising means. 2. The blackbody furnace according to claim 1, wherein an insulating tube is provided with a space around the outer periphery of the heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61154863A JPS6311823A (en) | 1986-07-01 | 1986-07-01 | Black body furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61154863A JPS6311823A (en) | 1986-07-01 | 1986-07-01 | Black body furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6311823A JPS6311823A (en) | 1988-01-19 |
| JPH0547058B2 true JPH0547058B2 (en) | 1993-07-15 |
Family
ID=15593562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61154863A Granted JPS6311823A (en) | 1986-07-01 | 1986-07-01 | Black body furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6311823A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6019445B2 (en) * | 1978-10-13 | 1985-05-16 | 株式会社千野製作所 | Radiation tube for blackbody reactor |
-
1986
- 1986-07-01 JP JP61154863A patent/JPS6311823A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6311823A (en) | 1988-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |