JPS6086432A - Black body furnace - Google Patents
Black body furnaceInfo
- Publication number
- JPS6086432A JPS6086432A JP58195428A JP19542883A JPS6086432A JP S6086432 A JPS6086432 A JP S6086432A JP 58195428 A JP58195428 A JP 58195428A JP 19542883 A JP19542883 A JP 19542883A JP S6086432 A JPS6086432 A JP S6086432A
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- cave
- heat
- thermometer
- tube
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000002791 soaking Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910002804 graphite Inorganic materials 0.000 abstract description 2
- 239000010439 graphite Substances 0.000 abstract description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 2
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 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
- G01J5/52—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)
Abstract
Description
【発明の詳細な説明】
（１）発明の分野
この発明は、顕微鐘形放射温度計のように測定再度の大
きいものの校正等に用いられる小型の黒体炉に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (1) Field of the Invention The present invention relates to a small-sized blackbody furnace used for the calibration of large objects such as a microscope bell-shaped radiation thermometer.
（２）従来技術
近年、放射温度計を用いて微少部分の温度を非接触で測
定することが行われている。このだめの校正用の比較黒
体炉も小型で、微少な開口を有するものが望まれている
。(2) Prior art In recent years, radiation thermometers have been used to measure the temperature of minute parts without contact. It is also desired that the comparison blackbody furnace for calibrating this reservoir be small and have a minute opening.
従来、第１図で示すように、空洞１ａを有する空洞放射
体（空洞部）１の外周証加熱体（ヒータ）Ｚを巻き、加
熱していた。しかしながら、このような構成では、外周
方向の径が大きくなってしまい小形化が図れず、空洞１
ａに温度分布を生じ高精度化が図れず、また空洞１ａを
放射温度計３でのぞくと、加熱体２０表面から不要な放
射エネルギーが迷光として入射し校正誤差を招く欠陥を
有していた。Conventionally, as shown in FIG. 1, a heating element (heater) Z around the outer periphery of a cavity radiator (cavity part) 1 having a cavity 1a has been wound and heated. However, with such a configuration, the diameter in the outer circumferential direction becomes large, making it difficult to downsize the cavity.
A temperature distribution occurred in the heating element 20, making it impossible to achieve high accuracy. Furthermore, when looking into the cavity 1a with the radiation thermometer 3, unnecessary radiant energy was incident as stray light from the surface of the heating element 20, which caused a calibration error.
（３）発明の目的
この発明の目的は、以上の点に鑑み、空洞部の後方に加
熱体を設けることによって、小型化し、かつ精密化を図
った黒体炉を提供することである。(3) Purpose of the Invention In view of the above points, the purpose of the present invention is to provide a blackbody furnace that is smaller and more precise by providing a heating element at the rear of the cavity.
（４）発明の実施例
第２図（ａ）、（ｂ）は、この発明の一実施例を示す正
面説明図、一部断面側面説明図で、第１図と同一符号は
同一構成要素を示す。(4) Embodiment of the invention FIGS. 2(a) and 2(b) are a front view and a partially sectional side view showing an embodiment of the invention, and the same reference numerals as in FIG. 1 indicate the same components. show.
図において、１け、黒鉛あるいに炭化ケイ素など放射率
が高くかつ熱伝導のすぐれた材料で構成された空洞放射
体（空洞部）で、前面に直径数ｍｒｎ。In the figure, it is a hollow radiator (cavity part) made of a material with high emissivity and excellent thermal conductivity, such as graphite or silicon carbide, with a diameter of several millimeters on the front surface.
深さ数闘の空洞１ａを有し、背面にこの空洞１ａの温度
を計測するシース熱電対のような温度計４を挿入する穴
が設けられている。この空洞放射体ｌの背面には、発熱
体（ヒータ）２が無誘導巻された中空の外径約２肱のア
ルミナ等の発熱管５が接合し、かつ外周には熱伝導の優
れたＡｔ、ヒートパイプなどで作られた均熱管６が嵌合
している。It has a cavity 1a of several depths, and a hole is provided on the back surface into which a thermometer 4, such as a sheathed thermocouple, is inserted to measure the temperature of the cavity 1a. A hollow heat generating tube 5 made of alumina or the like with an outer diameter of about 2 elbows is connected to the back surface of the hollow radiator l, and a heat generating element (heater) 2 is non-inductively wound thereon. , a heat equalizing tube 6 made of a heat pipe or the like is fitted.
この均熱管６Ｖ′ｉ空洞放射体１の開口部と接する個所
が円錐状６ａに形成され、かつその中央に直径約１ ｒ
ｒｍの開口を設けている。７は均熱管６を断熱する断熱
部で、ステンレスなど熱伝導率の小さい材料で構成され
ている。The portion of this soaking tube 6V′i that contacts the opening of the cavity radiator 1 is formed into a conical shape 6a, and a diameter of approximately 1 r is formed at the center of the conical portion 6a.
rm opening is provided. Reference numeral 7 denotes a heat insulating part that insulates the heat soaking tube 6, and is made of a material with low thermal conductivity such as stainless steel.
つまり、加熱体２より発生する熱は、発熱管５から熱伝
導により直接空洞放射体１の背部より加熱するとともに
、均熱管６との空間で空洞放射の作用で照射した熱を、
均熱管６を介し７て空洞放射体１の周辺より加熱する。In other words, the heat generated by the heating element 2 is directly heated from the back of the cavity radiator 1 by heat conduction from the heating tube 5, and the heat irradiated by the effect of cavity radiation in the space with the soaking tube 6 is
The periphery of the hollow radiator 1 is heated through the soaking tube 6 and 7 .
そし、てシース熱電対のような温度計４で空洞１ａの温
度を測定する。この結果、空洞放射体］は均一に加熱さ
れ、かつ温度計４との温度差もなく、精密な校正が可能
な基準放射源となる。Then, the temperature of the cavity 1a is measured with a thermometer 4 such as a sheathed thermocouple. As a result, the cavity radiator] is heated uniformly and there is no temperature difference with the thermometer 4, making it a reference radiation source that can be precisely calibrated.
しかも断熱部７の外径は約）−４ｍｍで、その表面放射
率を０．５以下におさえているので、開口以外の而６ａ
および７ａから放射される。迷光成分は放射温度計のレ
ンズの径が１００ｍｍｊν上のとき、１％以下となる。Furthermore, the outer diameter of the heat insulating part 7 is approximately -4 mm, and its surface emissivity is kept below 0.5, so that it can
and 7a. The stray light component is 1% or less when the diameter of the lens of the radiation thermometer is 100 mmjv or more.
第３図で示すように、レンズし、提出素子Ｄ、増幅器Ａ
、指示器Ｊ等よりなる顕微鐘形放射温度計３会のように
測定角度θが大きいものの校正においてきわめて有効で
ある。なお、黒体炉は断熱部７の外形のみで簡略化して
図示しである。またレンズＬけカセグレン形でもよい。As shown in Figure 3, the lens element D, the amplifier A
It is extremely effective in calibrating a device with a large measurement angle θ, such as a three-way microscope bell-shaped radiation thermometer consisting of an indicator J, etc. Note that the blackbody furnace is illustrated in a simplified manner by showing only the outer shape of the heat insulating section 7. Alternatively, a Cassegrain type lens with an L length may be used.
（５）発明の要約
以上述べたように、この発明は、小さな空洞を有する空
洞部とこの空洞部の後方に設けられた加熱体とこれを囲
むように均熱管を設けた黒体炉である。(5) Summary of the Invention As stated above, the present invention is a blackbody furnace that includes a cavity having a small cavity, a heating body provided behind the cavity, and a soaking tube surrounding the cavity. .
（６）発明の効果
空洞部の後方に加熱体を設けているので外径方向に犬き
くならず、断面の／」・型化が図れ、空洞部、加熱体を
均熱管で囲んでいるので、その内部は一様な温度となり
、空洞と温度計と温度差は少なく、きわめて高精度の超
小型の比較用黒体炉が実現できる。(6) Effects of the invention Since the heating element is provided at the rear of the cavity, there is no deviation in the outer diameter direction, and the cross section can be shaped into a /'' shape, and the cavity and heating element are surrounded by a soaking tube. The temperature inside the furnace is uniform, and there is little difference in temperature between the cavity and the thermometer, making it possible to create an ultra-compact comparison blackbody furnace with extremely high precision.
第１図は、従来例を示す構成説明図、第２図、第３図は
、この発明の一実施例を示す構成説明図である。
１・・・空洞放射体（空洞部）、１ａ・・・空洞、２・
・・加熱体、３・・・放射温度計、４・・温度計、５・
・・発熱管、６・均熱管、７・・・断熱部
特許出願人 株式会社 千野製作所FIG. 1 is a configuration explanatory diagram showing a conventional example, and FIGS. 2 and 3 are configuration explanatory diagrams showing an embodiment of the present invention. 1...Cavity radiator (cavity part), 1a...Cavity, 2.
・・Heating body, 3・・Radiation thermometer, 4・・Thermometer, 5・
・・Heating tube, 6・Heat equalizing tube, 7・・Insulating part Patent applicant Chino Seisakusho Co., Ltd.
Claims (1)
られた加熱体と、この空洞部と加熱体とを囲む均熱管と
を備えたことを特徴とする黒体炉。 ２ 前記加熱体を空洞部の温度を測定する温度計の外周
に設は均熱管と間隔をもたせ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。 ３ 前記空洞部を囲む均熱管の先端を円錐状としたこと
を特徴とする特許請求の範囲第１項または第２項記載の
黒体炉。 ４、 前記均熱管の外周に断熱部を設けたことを特徴と
する特許請求の範囲第１項から第３項記載の黒体炉。[Claims] 1. A black body characterized by comprising a hollow portion having a hollow portion, a heating body provided at the rear of the hollow portion, and a soaking tube surrounding the hollow portion and the heating body. Furnace. 2. The blackbody furnace according to claim 1, wherein the heating element is disposed around the outer periphery of a thermometer for measuring the temperature of the cavity, and is spaced apart from a soaking tube. 3. The blackbody furnace according to claim 1 or 2, characterized in that the distal end of the soaking tube surrounding the cavity has a conical shape. 4. The blackbody furnace according to claims 1 to 3, characterized in that a heat insulating section is provided on the outer periphery of the soaking tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58195428A JPS6086432A (en) | 1983-10-19 | 1983-10-19 | Black body furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58195428A JPS6086432A (en) | 1983-10-19 | 1983-10-19 | Black body furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6086432A true JPS6086432A (en) | 1985-05-16 |
| JPH0458569B2 JPH0458569B2 (en) | 1992-09-17 |
Family
ID=16340903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58195428A Granted JPS6086432A (en) | 1983-10-19 | 1983-10-19 | Black body furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6086432A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008013004A1 (en) | 2006-07-27 | 2008-01-31 | Kabushiki Kaisha Kobe Seiko Sho | Temperature measuring method and temperature measuring device of steel plate, and temperature control method of steel plate |
| US8728401B2 (en) | 2008-10-27 | 2014-05-20 | Sefar BDH, Inc. | Filter bag, pleatable filtration material therefore, and process of making same |
| JP2014153357A (en) * | 2013-02-05 | 2014-08-25 | Ap Systems Inc | Calibration device of temperature measurement pyrometer |
| CN105067123A (en) * | 2015-05-13 | 2015-11-18 | 高伟 | Efficient lamination-type high-temperature blackbody furnace body |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4825576A (en) * | 1971-08-04 | 1973-04-03 | ||
| JPS5552951A (en) * | 1978-10-13 | 1980-04-17 | Chino Works Ltd | Radiation tube for black body furnace |
| JPS5842722U (en) * | 1981-09-18 | 1983-03-22 | 日本電子株式会社 | Reference blackbody furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5842722B2 (en) * | 1975-08-29 | 1983-09-21 | 株式会社クボタ | Nouyou Karitoriki |
-
1983
- 1983-10-19 JP JP58195428A patent/JPS6086432A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4825576A (en) * | 1971-08-04 | 1973-04-03 | ||
| JPS5552951A (en) * | 1978-10-13 | 1980-04-17 | Chino Works Ltd | Radiation tube for black body furnace |
| JPS5842722U (en) * | 1981-09-18 | 1983-03-22 | 日本電子株式会社 | Reference blackbody furnace |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008013004A1 (en) | 2006-07-27 | 2008-01-31 | Kabushiki Kaisha Kobe Seiko Sho | Temperature measuring method and temperature measuring device of steel plate, and temperature control method of steel plate |
| US8728401B2 (en) | 2008-10-27 | 2014-05-20 | Sefar BDH, Inc. | Filter bag, pleatable filtration material therefore, and process of making same |
| JP2014153357A (en) * | 2013-02-05 | 2014-08-25 | Ap Systems Inc | Calibration device of temperature measurement pyrometer |
| CN105067123A (en) * | 2015-05-13 | 2015-11-18 | 高伟 | Efficient lamination-type high-temperature blackbody furnace body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0458569B2 (en) | 1992-09-17 |
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