JPH0729490U - Temperature difference controlled high temperature diffusion fog chamber - Google Patents
Temperature difference controlled high temperature diffusion fog chamberInfo
- Publication number
- JPH0729490U JPH0729490U JP5839293U JP5839293U JPH0729490U JP H0729490 U JPH0729490 U JP H0729490U JP 5839293 U JP5839293 U JP 5839293U JP 5839293 U JP5839293 U JP 5839293U JP H0729490 U JPH0729490 U JP H0729490U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- container
- cloth portion
- impregnated cloth
- temperature difference
- 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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Abstract
(57)【要約】
【目的】 霧箱の容器内に発生した霧の流れを一定にし
て、放射線の飛跡が現れる有効領域を安定に維持制御可
能で操作が容易な温度差制御型高温拡散霧箱を提供す
る。
【構成】 含浸布部ヒータ３２が容器１０の上部内周面
に沿って設けられ、含浸布部３４が含浸布部ヒータ３２
を覆うように取り付けられ、温度検出素子４４が含浸布
部中に配置され、含浸布部温度制御指示計により含浸布
部の温度が所望の温度に制御されることにより、含浸布
部からエチレングリコールの一定量の蒸気が安定に発生
する。過熱蒸気層３８とエチレングリコールの液面２６
との温度差を検出する温度検出素子４０、４２が設けら
れ、上蓋部ヒータ２２がその温度差が所望の温度差にな
るよう温度差制御指示計により含浸布部ヒータとは独立
に制御される。これらにより、有効領域９２が安定に形
成、保持され、放射線の飛跡が安定に観察される。
(57) [Abstract] [Purpose] A high temperature diffusion fog that controls the temperature difference by making the flow of the fog generated in the container of the fog chamber constant and maintaining stable the effective area where the radiation tracks appear Provide a box. [Constitution] An impregnated cloth portion heater 32 is provided along the upper inner peripheral surface of the container 10, and an impregnated cloth portion heater 32 is provided.
The temperature detecting element 44 is disposed in the impregnated cloth portion so that the temperature of the impregnated cloth portion is controlled to a desired temperature by the impregnated cloth portion temperature control indicator, so that the ethylene glycol is removed from the impregnated cloth portion. A certain amount of steam is stably generated. Superheated vapor layer 38 and ethylene glycol level 26
Temperature detecting elements 40 and 42 for detecting a temperature difference between the impregnated cloth portion heater and the upper lid heater 22 are controlled independently of the impregnated cloth portion heater by the temperature difference control indicator so that the temperature difference becomes a desired temperature difference. . As a result, the effective area 92 is stably formed and held, and the track of radiation is stably observed.
Description
【０００１】[0001]
本考案は、放射線の飛跡を観察するための温度差制御型高温拡散霧箱に関し、 特に霧の流れを一定に制御し安定な有効領域を保持する構造に関するものである 。 The present invention relates to a temperature difference control type high temperature diffusion fog chamber for observing a track of radiation, and more particularly to a structure for controlling the flow of fog to a constant level to maintain a stable effective area.
【０００２】 なお、放射線に関してその飛跡を観察することは非常に重要であり、教育訓練 用として、温度差制御型高温拡散霧箱は、中学生、高校生、又は放射線作業従事 者にとっても、放射線の性質、放射線の管理の基本的な知識を習得することに適 したものである。[0002] In addition, it is very important to observe the track of radiation, and for educational and training purposes, the temperature difference control type high temperature diffusion fog chamber is used for junior high school students, high school students, and radiation workers as well. It is suitable for acquiring basic knowledge of radiation control.
【０００３】[0003]
従来の高温拡散霧箱の要部の構造を概略示すため断面図の形で図４に示す。図 ４において、１０は上面が開口した円筒形のガラス容器を、１２は上蓋部を、１ ４は容器１０の側壁の内周面に沿って上蓋部１２の近傍に取り付けられ、エチレ ングリコールを含浸した含浸布部を、１６は容器１０の側壁の外周面に含浸布部 １４と対向して取り付けられ含浸布部１４を容器１０の側壁を介して加熱しエチ レングリコールの蒸気を発生させる含浸布部ヒータを、１８は容器１０の底面近 傍のエチレングリコールの蒸気を冷却して凝縮させるため容器１０の底部の外側 に設けられた冷却ファンをそれぞれ示す。上蓋部１２は、観察用窓２０と、容器 １０の内部空間における上蓋部１２の近傍を加熱するための上蓋部ヒータ２２と を有する。２４は、含浸布部ヒータ１６および上蓋部ヒータ２２の加熱をＯＮ− ＯＦＦ制御するためサーモスタット（図示せず）の温度検出素子を示し、当該温 度検出素子２４は、容器１０内で水平方向において含浸布部１４を含む空間の部 分でかつ含浸布部１４から離間した位置に配設されている。 FIG. 4 is a sectional view showing the structure of a main part of a conventional high temperature diffusion fog box. In FIG. 4, 10 is a cylindrical glass container having an open upper surface, 12 is an upper lid portion, and 14 is attached along the inner peripheral surface of the side wall of the container 10 in the vicinity of the upper lid portion 12, and ethylene glycol is attached. The impregnated cloth portion 16 is attached to the outer peripheral surface of the side wall of the container 10 so as to face the impregnated cloth portion 14, and the impregnated cloth portion 14 is heated through the side wall of the container 10 to generate ethylene glycol vapor. Reference numeral 18 denotes a cloth heater, and 18 denotes a cooling fan provided outside the bottom of the container 10 to cool and condense the vapor of ethylene glycol near the bottom of the container 10. The upper lid 12 has an observation window 20 and an upper lid heater 22 for heating the vicinity of the upper lid 12 in the internal space of the container 10. Reference numeral 24 denotes a temperature detecting element of a thermostat (not shown) for controlling ON / OFF of heating of the impregnated cloth portion heater 16 and the upper lid portion heater 22, and the temperature detecting element 24 is in the container 10 in the horizontal direction. It is arranged in a portion of the space including the impregnated cloth portion 14 and at a position separated from the impregnated cloth portion 14.
【０００４】 上記のように構成された従来の高温拡散霧箱においては、サーモスタットの温 度検出素子２４により検出された温度と設定温度との差に従いサーモスタットが 含浸布部ヒータ１６および上蓋部ヒータ２２を同時にＯＮ−ＯＦＦ制御すること により、含浸布部１４からエチレングリコールを気化させ、容器１０内にエチレ ングリコールの霧を発生させている。一方、冷却ファン１８により容器１０の底 部の付近にあるエチレングリコールの霧を冷却して凝縮させエチレングリコール の液体２６を生じさせる。このような動作により、容器１０の空間の含浸布部１ ４とエチレングリコールの液体２６との間で放射線の飛跡を捕らえる有効領域（ 過飽和蒸気層）２８が形成される。In the conventional high temperature diffusion fog chamber configured as described above, the thermostat impregnates the cloth portion heater 16 and the upper lid heater 22 according to the difference between the temperature detected by the temperature detecting element 24 of the thermostat and the set temperature. By simultaneously controlling ON and OFF, ethylene glycol is vaporized from the impregnated cloth portion 14, and mist of ethylene glycol is generated in the container 10. On the other hand, the cooling fan 18 cools and condenses the mist of ethylene glycol in the vicinity of the bottom of the container 10 to produce a liquid 26 of ethylene glycol. By such an operation, an effective region (supersaturated vapor layer) 28 for capturing a track of radiation is formed between the impregnated cloth portion 14 in the space of the container 10 and the ethylene glycol liquid 26.
【０００５】[0005]
従来の高温拡散霧箱は上記したように構成され、動作するので次のような問題 点を有していた。即ち、 上蓋部ヒータ２２および含浸布部ヒータ１６のＯＮ−ＯＦＦをサーモスタット によって同時に行っているため、エチレングリコールの霧の発生量と霧箱の容器 １０内の温度勾配を一定に保持することが困難であり、有効領域（過飽和蒸気層 ）２８の形成が不安定であった。 The conventional high temperature diffusion fog chamber has the following problems because it is constructed and operates as described above. That is, since the upper lid heater 22 and the impregnated cloth heater 16 are turned on and off at the same time by the thermostat, it is difficult to keep the amount of ethylene glycol mist generated and the temperature gradient in the container 10 of the mist box constant. The formation of the effective region (supersaturated vapor layer) 28 was unstable.
【０００６】 また、サーモスタットの温度検出素子２４が容器１０の内部空間に配置されて いるため、その空間の温度とは異なる温度である含浸布部１４から一定の量の霧 を発生させることが困難であった。Further, since the temperature detecting element 24 of the thermostat is arranged in the internal space of the container 10, it is difficult to generate a certain amount of fog from the impregnated cloth portion 14 having a temperature different from the temperature of the space. Met.
【０００７】 さらに、含浸布部ヒータ１６によって霧箱の容器１０の円筒ガラス側壁の外壁 を介して、ガラス側壁の内壁に取り付けられた含浸布部１４を間接的に加熱して いるため、エチレングリコールの霧の発生量を制御するのに時間遅れが生じる。 そのため、霧箱の容器１０内の温度勾配とエチレングリコールの霧の流量とが一 定になる定常状態の形成に時間がかかり、しかも上記時間遅れを考慮して操作者 は設定温度等を時間に対して変える等、従来の高温拡散霧箱を操作するのに、操 作者はかなりの熟練と経験とを要した。Furthermore, since the impregnated cloth portion 14 attached to the inner wall of the glass side wall is indirectly heated by the impregnated cloth portion heater 16 through the outer wall of the cylindrical glass side wall of the container 10 of the fog chamber, ethylene glycol is used. There is a time delay in controlling the amount of fog generated. Therefore, it takes a long time to form a steady state in which the temperature gradient in the container 10 of the mist chamber and the flow rate of the ethylene glycol mist become constant, and in consideration of the above time delay, the operator sets the set temperature and the like in time. The operator required considerable skill and experience to operate the conventional high temperature diffusion fog chamber, such as changing it.
【０００８】 このような問題点を有するため、従来の高温拡散霧箱は、中学生、高校生にと っては不確かで適切でない教育機器であった。[0008] Because of such problems, the conventional high-temperature diffusion fog box was an uncertain and unsuitable educational device for middle school and high school students.
【０００９】 本考案は、上記問題点を解決して、霧箱の容器内に発生した霧の流れを一定に して、放射線の飛跡が現れる有効領域を安定に維持制御可能で操作が容易な温度 差制御型高温拡散霧箱を提供することを目的とする。The present invention solves the above-mentioned problems and makes the flow of mist generated in the container of the mist chamber constant so that the effective area where the track of radiation appears can be stably maintained and controlled, and the operation is easy. It is an object to provide a temperature difference control type high temperature diffusion fog chamber.
【００１０】[0010]
上記目的を達成するため、本考案の温度差制御型高温拡散霧箱は、側壁部と底 部とを有し、上面が開口した容器と、前記容器の内部を密閉するため前記容器の 上面を覆い、かつ前記容器の内部を見得る構造を有する上蓋部と、前記容器の内 部空間における前記上蓋部近傍を加熱するため前記上蓋部に設けられた上蓋部加 熱手段と、前記容器の側壁部の内周面に沿い、かつ前記上面の近傍でそれから離 間して設けられ、かつ液体を含浸した含浸布部と、前記含浸布部に含浸した液体 を気化するため前記含浸布部を加熱する含浸布部加熱手段と、前記容器の底面近 傍にある前記気化した液体の蒸気を冷却して凝縮させるため前記容器の底部の外 側に設けられた冷却手段とを備え、さらに、前記含浸布部加熱手段は前記容器の 側壁部の内周面と前記含浸布部との間に、かつ前記含浸布部により覆われるよう に設けられ、前記容器の内部空間における前記上蓋部近傍の温度と、前記冷却手 段により冷却され凝縮して前記容器の底部に存在する液体の液面の温度との差を 検出する温度差検出手段と、前記温度差検出手段により検出された温度差が所定 の値となるよう前記上蓋部加熱手段を制御する温度差制御手段と、前記含浸布部 の温度を検出するため前記含浸布部内に配置された含浸布部温度検出手段と、前 記含浸布部温度検出手段により検出された前記含浸布部の温度が所定の値となる よう前記含浸布部加熱手段を制御する制御手段とを設けることを特徴とする。 In order to achieve the above object, a temperature difference control type high temperature diffusion fog box of the present invention has a container having a side wall portion and a bottom portion and an upper surface opened, and an upper surface of the container for sealing the inside of the container. An upper lid portion having a structure for covering and seeing the inside of the container, an upper lid heating means provided on the upper lid portion for heating the vicinity of the upper lid portion in the inner space of the container, and a side wall of the container. The impregnated cloth portion impregnated with the liquid, which is provided along the inner peripheral surface of the portion and apart from the upper surface, and heats the impregnated cloth portion to vaporize the liquid impregnated in the impregnated cloth portion. And a cooling means provided outside the bottom of the container to cool and condense the vaporized liquid vapor near the bottom surface of the container. The cloth heating means is the inner peripheral surface of the side wall of the container. It is provided between the impregnated cloth part and so as to be covered with the impregnated cloth part, and the temperature near the upper lid part in the internal space of the container and the bottom part of the container condensed and cooled by the cooling means. Temperature difference detecting means for detecting the difference between the temperature of the liquid surface of the liquid and the temperature difference control for controlling the upper lid heating means so that the temperature difference detected by the temperature difference detecting means becomes a predetermined value. Means for detecting the temperature of the impregnated cloth portion, the impregnated cloth portion temperature detecting means arranged in the impregnated cloth portion, and the temperature of the impregnated cloth portion detected by the impregnated cloth portion temperature detecting means. And a control means for controlling the impregnated cloth portion heating means so that the value becomes a value.
【００１１】[0011]
上記のように構成された本考案の温度差制御型高温拡散霧箱は、含浸布部加熱 手段が容器の側壁部の内周面と含浸布部との間に、かつ前記含浸布部により覆わ れるように設けられることにより、液体を含浸した前記含浸布部からの霧の発生 を容易にし、かつ加熱に対して霧を時間遅れなく発生させる。そして、含浸布部 温度検出手段により前記含浸布部自体の温度が検出され、前記含浸布部加熱手段 を制御する制御手段により前記含浸布部加熱手段が制御されることにより前記含 浸布部の温度が所定の値にされる。これらにより、含浸布部からのエチレングリ コールの蒸気発生量が容易に一定に保たれる。 In the temperature difference control type high temperature diffusion fog box of the present invention configured as described above, the impregnating cloth portion heating means is provided between the inner peripheral surface of the side wall of the container and the impregnating cloth portion, and is covered by the impregnating cloth portion. By being provided so as to facilitate the generation of mist from the impregnated cloth portion impregnated with the liquid, the mist is generated without time delay with respect to heating. Then, the temperature of the impregnated cloth portion itself is detected by the impregnated cloth portion temperature detecting means, and the impregnated cloth portion heating means is controlled by the control means for controlling the impregnated cloth portion heating means. The temperature is brought to a predetermined value. As a result, the amount of ethylene glycol vapor generated from the impregnated cloth can be easily kept constant.
【００１２】 また、温度差検出手段により前記容器の内部空間の上蓋部近傍の温度と、前記 冷却手段により冷却され凝縮して前記底部に存在する液体の液面の温度との差が 検出され、温度差制御手段により前記上蓋部加熱手段が制御されることにより前 温度差が所定の値にされる。Further, the temperature difference detecting means detects the difference between the temperature near the upper lid part of the internal space of the container and the temperature of the liquid surface of the liquid which is cooled and condensed by the cooling means and exists at the bottom part, By controlling the upper lid heating means by the temperature difference control means, the previous temperature difference is set to a predetermined value.
【００１３】 さらに、上蓋部加熱手段は前記容器の内部空間における上蓋部の近傍の温度と 、前記冷却手段により冷却され凝縮して前記底部に存在する液体の液面の温度と の差に基づき、一方前記含浸布部加熱手段は前記含浸布部の温度に基づき、それ ぞれの制御手段により独立に制御される。Further, the upper lid heating means is based on the difference between the temperature near the upper lid in the internal space of the container and the temperature of the liquid surface of the liquid which is cooled by the cooling means and condensed to exist at the bottom, On the other hand, the impregnating cloth portion heating means is independently controlled by the respective controlling means based on the temperature of the impregnating cloth portion.
【００１４】 これらの作用により、発生された霧の流れが一定に制御され、容器内に上から 過熱蒸気層、飽和蒸気層、過飽和蒸気層である有効領域、および液体の凝縮液面 が容易にかつ安定に形成、保持され、その結果、放射線の飛跡が形成される有効 領域（過飽和蒸気層）において放射線の飛跡が安定に観察される。By these actions, the flow of the generated mist is controlled to be constant, and the superheated vapor layer, the saturated vapor layer, the effective region of the supersaturated vapor layer, and the condensed liquid surface of the liquid are easily controlled from the top in the container. The radiation track is stably observed and formed, and as a result, the radiation track is stably observed in the effective region (supersaturated vapor layer) where the radiation track is formed.
【００１５】[0015]
本考案の温度差制御型高温拡散霧箱の一実施例を図面を参照して以下に説明す る。図１の（Ａ）は本考案の一実施例の温度差制御型高温拡散霧箱をその上面か らみた平面図であり、図１の（Ｂ）はその正面からみた正面図である。また、図 ２は、図１の（Ａ）においてラインＡ−Ａでの断面図を示し、温度差制御型高温 拡散霧箱の主要構成要素を概略示している。図３は、図１および図２に示される 温度差制御型高温拡散霧箱の電気回路を示すブロック図である。なお、本考案の 理解を容易にするため、構成要素は必要に応じて摸式的に示されており、実際の 大きさを示すものではない。また、図１および図２において、図４に示す参照番 号と同一の参照番号のものは、図４の同一参照番号の構成要素と同様の機能を有 するものであるので説明を繰り返さない。 An embodiment of the temperature difference control type high temperature diffusion fog box of the present invention will be described below with reference to the drawings. FIG. 1A is a plan view of a temperature difference control type high temperature diffusion fog box according to an embodiment of the present invention as seen from the upper surface, and FIG. 1B is a front view as seen from the front. Further, FIG. 2 shows a cross-sectional view taken along line AA in FIG. 1A, and schematically shows main components of the temperature difference control type high temperature diffusion mist chamber. FIG. 3 is a block diagram showing an electric circuit of the temperature difference control type high temperature diffusion fog chamber shown in FIGS. 1 and 2. In addition, in order to facilitate understanding of the present invention, the constituent elements are schematically illustrated as necessary, and do not represent actual sizes. Further, in FIGS. 1 and 2, the same reference numerals as the reference numerals shown in FIG. 4 have the same functions as the components of the same reference numerals in FIG. 4, and therefore the description thereof will not be repeated.
【００１６】 図１において、温度差制御型高温拡散霧箱の筺体３０の中に内径１５０ｍｍφ 高さ５５ｍｍのガラス製の円筒形状をしている容器１０が配置され、その容器１ ０の内部を密閉状態にするためその上面の開口を覆うように筺体３０の上面に上 蓋部１２が取り付けられている。その上蓋部１２には放射線の飛跡を観察するた めのガラス製の観察用窓２０が取り付けられている。筺体３０の正面側の側面に は、図１の（Ｂ）に示されるように、後述する表示および設定用のスイッチＳＳ1 、ＳＳ2、可変抵抗器のボリューム６４（ＶＲ1）および６６（ＶＲ2）、ランプ ＰＬ、過熱蒸気層と液体の凝縮液面との温度差設定部８０、その温度差表示部８ ２、含浸布部の温度設定部８４、およびその温度表示部８６が取り付けられてい る。In FIG. 1, a glass container 10 having an inner diameter of 150 mm and a height of 55 mm is arranged in a housing 30 of a temperature difference control type high temperature diffusion fog box, and the inside of the container 10 is sealed. The upper lid 12 is attached to the upper surface of the housing 30 so as to cover the opening on the upper surface in order to bring it into the state. An observation window 20 made of glass for observing the track of radiation is attached to the upper lid portion 12. On the front side surface of the housing 30, as shown in FIG. 1 (B), switches SS 1 and SS 2 for display and setting, which will be described later, and variable resistor volumes 64 (VR 1 ) and 66 (VR) are provided. 2 ), a lamp PL, a temperature difference setting unit 80 between the superheated vapor layer and the condensed liquid surface of the liquid, a temperature difference display unit 82 thereof, a temperature setting unit 84 of the impregnated cloth unit, and a temperature display unit 86 thereof. It
【００１７】 図２において、上蓋部１２に取り付けられている観察用窓２０の内側には観察 に支障のない従来のものと同じ形式の上蓋部ヒータ２２が設けられている。含浸 布部ヒータ３２が、容器１０の側壁の内周面に沿って、かつ上蓋部１２の近傍で それから離間して取り付けられている。そして、含浸布部３４が、含浸布部ヒー タ３２を覆うようにその上に、容器１０の側壁の内周面に沿って取り付けられて いる。図１の（Ａ）に示されるように、含浸布部３４の数箇所から容器１０の底 部に存在する液体のエチレングリコール（図２の２６参照）を含浸布部３４に吸 い上げるための吸い上げ布３６がエチレングリコールの液体２６まで垂れ下がっ ている。観察用窓２０の内側面から含浸布部３４の間の容器１０内の空間、好ま しくは観察用窓２０の内側の直下に生じる過熱蒸気層３８とエチレングリコール の液体２６の凝縮液面との温度差を検出するため、熱電対等の温度検出素子４０ および４２がそれぞれ、観察用窓２０の内側面から含浸布部３４の間の容器１０ 内の空間、好ましくは観察用窓２０の内側の直下と、液体２６の液面とに配置さ れており、かつ直列に接続され、後述する温度差制御指示計（ＴＩＣ）５０に接 続されている。含浸布部３４の温度を測定するためその含浸布部３４の中に、熱 電対等の温度検出素子４４が配置され、後述する含浸布部温度制御指示計（ＴＩ Ｃ）５２に接続されている。In FIG. 2, an upper lid heater 22 of the same type as a conventional one that does not hinder observation is provided inside the observation window 20 attached to the upper lid 12. The impregnated cloth portion heater 32 is attached along the inner peripheral surface of the side wall of the container 10 and in the vicinity of the upper lid portion 12 and apart therefrom. The impregnated cloth portion 34 is attached to the impregnated cloth portion heater 32 so as to cover the impregnated cloth portion heater 32 and along the inner peripheral surface of the side wall of the container 10. As shown in FIG. 1A, the liquid ethylene glycol (see 26 in FIG. 2) existing at the bottom of the container 10 is sucked up from several places of the impregnated cloth portion 34 to the impregnated cloth portion 34. The wicking cloth 36 hangs down to the ethylene glycol liquid 26. Between the inner surface of the observation window 20 and the impregnated cloth portion 34, a space inside the container 10, preferably between the superheated vapor layer 38 and the condensed liquid surface of the ethylene glycol liquid 26 immediately below the inside of the observation window 20. In order to detect the temperature difference, temperature detecting elements 40 and 42 such as thermocouples are respectively provided in the space inside the container 10 between the inside surface of the observation window 20 and the impregnated cloth portion 34, preferably directly below the inside of the observation window 20. And a liquid surface of the liquid 26, and are connected in series and connected to a temperature difference control indicator (TIC) 50 described later. In order to measure the temperature of the impregnated cloth portion 34, a temperature detecting element 44 such as a thermocouple is arranged in the impregnated cloth portion 34, and is connected to an impregnated cloth portion temperature control indicator (TIC) 52 described later. .
【００１８】 図３において、５４はＡＣ１００Ｖの外部ラインに接続するためのコンセント を、５６は共通ラインを、５８はコンセント５４にヒューズＦ1およびスイッチ ＳＳ1を介して接続されたＡＣ１００Ｖの＋側ラインをそれぞれ示す。スイッチ ＳＳ1による電源投入を示すランプＰＬが＋側ライン５８と共通ライン５６間に 接続されている。容器１０の内部を照らすための１００Ｖ５０Ｗのハロゲンラン プＬがスイッチＳＳ2を介して＋側ライン５８と共通ライン５６間に接続されて いる。含浸布部ヒータ３２に電力を供給するための電源となる第１の半導体制御 整流器（ＳＣＲ）６０と、上蓋部ヒータ２２に電力を供給する電源となる第２の 半導体制御整流器（ＳＣＲ）６２のそれぞれの入力側が＋側ライン５８と共通ラ イン５６に接続されている。温度差制御指示計５０および含浸布部温度制御指示 計５２のそれぞれ電源入力端子部が＋側ライン５８と共通ライン５６とに接続さ れている。第１の半導体制御整流器６０および第２の半導体制御整流器６２には それぞれのＤＣ出力電圧を調整するためのボリューム型の可変抵抗器６４および ６６がそれぞれ接続されている。In FIG. 3, 54 is an outlet for connecting to an AC100V external line, 56 is a common line, and 58 is an AC100V + side line connected to the outlet 54 through a fuse F 1 and a switch SS 1. Are shown respectively. A lamp PL that indicates power-on by the switch SS 1 is connected between the + side line 58 and the common line 56. A 100V, 50W halogen lamp L for illuminating the inside of the container 10 is connected between the + side line 58 and the common line 56 via a switch SS 2 . A first semiconductor control rectifier (SCR) 60, which serves as a power supply for supplying power to the impregnated cloth portion heater 32, and a second semiconductor control rectifier (SCR) 62, which serves as a power supply for supplying power to the upper lid heater 22. Each input side is connected to the + side line 58 and the common line 56. The power supply input terminals of the temperature difference control indicator 50 and the impregnated cloth portion temperature control indicator 52 are connected to the + side line 58 and the common line 56, respectively. The first semiconductor controlled rectifier 60 and the second semiconductor controlled rectifier 62 are connected to volume type variable resistors 64 and 66 for adjusting respective DC output voltages.
【００１９】 なお、第１の半導体制御整流器６０および可変抵抗器６４と、第２の半導体制 御整流器６２および可変抵抗器６６との具体的構成は、上記機能を有するもので あれば従来のいずれの構成のものでもよい。The specific configurations of the first semiconductor control rectifier 60 and the variable resistor 64 and the second semiconductor control rectifier 62 and the variable resistor 66 are not particularly limited as long as they have the above functions. The configuration of
【００２０】 第１の半導体制御整流器６０は、ＡＣ電圧を整流してＤＣ出力電圧を含浸布部 温度制御指示計５２に供給するため含浸布部温度制御指示計５２のＤＣ電圧入力 端子に接続されている。第２の半導体制御整流器６２もまた、ＡＣ電圧を整流し てＤＣ出力電圧を温度差制御指示計５０に供給するため温度差制御指示計５０の ＤＣ電圧入力端子に接続されている。含浸布部温度制御指示計５２のＤＣ電圧出 力端子と共通ライン５６との間に含浸布部ヒータ３２が接続され、温度差制御指 示計５０のＤＣ電圧出力端子と共通ライン５６との間に上蓋部ヒータ２２が接続 されている。温度差制御指示計５０は、図１の（Ｂ）に示されるように過熱蒸気 層３８と液体２６の凝縮液面との温度差を所望の値に設定するための温度差設定 部８０と、その実際の温度を表示する温度差表示部８２と、前記温度差と所望の 値とを比較する比較器（図示せず）と、ＤＣ電圧入力端子とＤＣ電圧出力端子間 に介挿されたＯＮ−ＯＦＦ制御スイッチ（図示せず）であって比較器が前記温度 差が所望の値より低いことを示すときにＯＮ（両端子間を導通）し、高いことを 示すときにＯＦＦ（両端子間を遮断）するＯＮ−ＯＦＦ制御スイッチとを有する 。含浸布部温度制御指示計５２は、図１の（Ｂ）に示されるように含浸布部ヒー タ３２の温度を所望の値に設定するための温度設定部８４と、その実際の温度を 表示する温度表示部８６と、含浸布部ヒータ３２の実際の温度と所望の値とを比 較する比較器（図示せず）と、ＤＣ電圧入力端子とＤＣ電圧出力端子間に介挿さ れたＯＮ−ＯＦＦ制御スイッチ（図示せず）であって比較器が含浸布部ヒータ３ ２の実際の温度が所望の値より低いことを示すときにＯＮ（両端子間を導通）し 、高いことを示すときにＯＦＦ（両端子間を遮断）するＯＮ−ＯＦＦ制御スイッ チとを有する。なお、温度差制御指示計５０および含浸布部温度制御指示計５２ の具体的構成は、上記機能を有するものであればいずれの構成のものでもよい。The first semiconductor control rectifier 60 is connected to a DC voltage input terminal of the impregnated cloth portion temperature control indicator 52 for rectifying the AC voltage and supplying a DC output voltage to the impregnated cloth portion temperature control indicator 52. ing. The second semiconductor control rectifier 62 is also connected to the DC voltage input terminal of the temperature difference control indicator 50 for rectifying the AC voltage and supplying the DC output voltage to the temperature difference control indicator 50. Between the DC voltage output terminal of the impregnated cloth portion temperature control indicator 52 and the common line 56, the impregnated cloth portion heater 32 is connected, and between the DC voltage output terminal of the temperature difference control indicator 50 and the common line 56. An upper lid heater 22 is connected to. The temperature difference control indicator 50 includes a temperature difference setting unit 80 for setting the temperature difference between the superheated vapor layer 38 and the condensed liquid surface of the liquid 26 to a desired value, as shown in FIG. A temperature difference display section 82 for displaying the actual temperature, a comparator (not shown) for comparing the temperature difference with a desired value, and an ON inserted between the DC voltage input terminal and the DC voltage output terminal. -OFF control switch (not shown) that turns on (conducts between both terminals) when the comparator indicates that the temperature difference is lower than the desired value, and turns off (indicates between both terminals) when the temperature difference is high. ON-OFF control switch for shutting off). The impregnated cloth portion temperature control indicator 52 displays a temperature setting portion 84 for setting the temperature of the impregnated cloth portion heater 32 to a desired value as shown in FIG. 1B, and its actual temperature. Temperature indicator 86, a comparator (not shown) for comparing the actual temperature of impregnated cloth heater 32 with a desired value, and an ON inserted between the DC voltage input terminal and the DC voltage output terminal. A -OFF control switch (not shown) that is ON (conducts between both terminals) when the comparator indicates that the actual temperature of the impregnated cloth portion heater 32 is lower than the desired value, and indicates that it is high. It has an ON-OFF control switch that sometimes turns OFF (between both terminals). The specific configurations of the temperature difference control indicator 50 and the impregnated cloth portion temperature control indicator 52 may be any configurations as long as they have the above functions.
【００２１】 次に、上述にように構成された温度差制御型高温拡散霧箱の動作を述べる。液 体としてエチレングリコールを使用した場合は、スイッチＳＳ1により電源投入 した後の初期設定値として、過熱蒸気層３８と液体２６の凝縮液面との温度差Δ Ｔ＝Ｔ1−Ｔ0（Ｔ1は過熱蒸気層３８の温度を、Ｔ0は液体２６の凝縮液面の温度 を示す。）はほぼ１０５〜１１０°Ｃが好ましく、例えば当該温度差の所望の値 を温度差設定部８０により１０５°Ｃに設定する。含浸布部３４の温度Ｔ2は、 前記温度差ΔＴが含浸布部３４の温度よりほぼ１０〜２０°Ｃ高い状態のとき（ このとき、Ｔ1はＴ2よりほぼ１０〜２０°Ｃ高い状態にある）飽和蒸気は過飽和 蒸気となり、観察用窓２０に液滴が発生しないことが実験的に確認されているこ とから、ほぼ１００〜１０５°Ｃが好ましく、例えば当該温度の所望の値を温度 設定部８４により１００°Ｃに設定する。容器１０内が安定状態に達するまでに 必要な電力を上蓋部ヒータ２２および含浸布部ヒータ３２に加えるのに適切なＤ Ｃ電圧をそれぞれの可変抵抗器６６および６４により設定する。上蓋部ヒータ２ ２は、温度差制御指示計５０により、過熱蒸気層３８と液体２６の凝縮液面との 温度差ΔＴが１０５°Ｃより低いときは第２の半導体制御整流器６２のＤＣ出力 電圧が印加されて加熱し、ΔＴが１０５°Ｃに達すると、それより高いときには 当該ＤＣ電圧の印加を遮断して加熱を休止し、またそれより低いときには当該Ｄ Ｃ電圧を印加して加熱して、過熱蒸気層３８と液体２６の凝縮液面との温度差Δ Ｔが一定になるように動作する。同様に、含浸布部ヒータ３２は、含浸布部温度 制御指示計５２により、含浸布部ヒータ３２の温度Ｔ2が１００°Ｃより低いと きは第１の半導体制御整流器６０のＤＣ出力電圧が印加されて加熱し、Ｔ2が１ ００°Ｃに達すると、それより高いときには当該ＤＣ出力電圧の印加を遮断して 加熱を休止し、またそれより低いときには当該ＤＣ出力電圧を印加して加熱して 、Ｔ2が一定になるように動作する。このような安定状態においては、通常は観 察用窓２０の内側に液滴が発生しないので放射線の飛跡を観測できる状態となる が、観察用窓２０の内側に液滴が発生する場合には、ΔＴとＴ2とあるいはいず れか一方の設定値を変える操作により液滴の発生を抑えるようにする。Next, the operation of the temperature difference control type high temperature diffusion mist chamber configured as described above will be described. When using ethylene glycol as a liquid body, as an initial setting value after power-on by the switch SS 1, the temperature difference Δ T = T 1 -T 0 of condensate surface of the superheated steam layer 38 and the liquid 26 (T 1 is the temperature of the superheated vapor layer 38, and T 0 is the temperature of the condensed liquid surface of the liquid 26.) is preferably about 105 to 110 ° C. For example, the desired value of the temperature difference is set by the temperature difference setting unit 80. Set to 105 ° C. The temperature T 2 of the impregnated cloth portion 34 is in a state where the temperature difference ΔT is higher than the temperature of the impregnated cloth portion 34 by approximately 10 to 20 ° C. (at this time, T 1 is approximately 10 to 20 ° C. higher than T 2). Since it has been experimentally confirmed that the saturated vapor becomes supersaturated vapor and droplets do not occur in the observation window 20, approximately 100 to 105 ° C is preferable, for example, a desired value of the temperature is set. The temperature setting unit 84 sets the temperature to 100 ° C. The appropriate DC voltage is set by the variable resistors 66 and 64, respectively, so as to apply the electric power required for reaching the stable state in the container 10 to the upper lid heater 22 and the impregnated cloth heater 32. When the temperature difference ΔT between the superheated vapor layer 38 and the condensed liquid surface of the liquid 26 is lower than 105 ° C., the upper lid heater 22 uses the temperature difference control indicator 50 to output the DC output voltage of the second semiconductor control rectifier 62. When ΔT reaches 105 ° C, the application of the DC voltage is stopped and the heating is stopped, and when the ΔT reaches 105 ° C, the DC voltage is applied and heating is performed. , The temperature difference ΔT between the superheated vapor layer 38 and the condensed liquid surface of the liquid 26 becomes constant. Similarly, the impregnated cloth portion heater 32 uses the impregnated cloth portion temperature control indicator 52 to determine that the DC output voltage of the first semiconductor control rectifier 60 when the temperature T 2 of the impregnated cloth portion heater 32 is lower than 100 ° C. When applied and heated, when T 2 reaches 100 ° C, when it is higher than that, the application of the DC output voltage is cut off to stop heating, and when it is lower than that, the DC output voltage is applied and heating is performed. Then, the operation is performed so that T 2 becomes constant. In such a stable state, droplets are not normally generated inside the observation window 20, so that the track of radiation can be observed, but when droplets are generated inside the observation window 20, and to suppress the occurrence of liquid droplets by an operation of changing the ΔT and T 2 phrase Iwaizu Re or the other settings.
【００２２】 なお、冷却ファン１８は上記動作の間従来のものと同様に容器１０の底部の近 傍に存在するエチレングリコールの蒸気を冷却液化するように動作する。During the above operation, the cooling fan 18 operates to cool and liquefy the vapor of ethylene glycol existing near the bottom of the container 10 as in the conventional case.
【００２３】 また、可変抵抗器６４および６６は、温度差制御型高温拡散霧箱の操作者が上 蓋部ヒータ２２および含浸布部ヒータ３２への印加電力を時間に対して調整でき るようにして、容器１０内の状態が過渡状態から安定状態へのより迅速でスムー ズな移行および安定状態において温度制御のリンギングがなるべく少なくなるよ うにするために設けられたものであり、これら可変抵抗器６４および６６を固定 にした、即ち第１の半導体制御整流器６０および第２の半導体制御整流器６２が 固定の一定ＤＣ電圧を出力する半導体制御整流器であっても本考案の温度差制御 型高温拡散霧箱は動作可能である。The variable resistors 64 and 66 allow the operator of the temperature difference control type high temperature diffusion fog chamber to adjust the power applied to the upper lid heater 22 and the impregnated cloth heater 32 with respect to time. The variable resistors are provided in order to make the state in the container 10 transition from the transient state to the stable state more quickly and smoothly and to reduce the ringing of the temperature control as much as possible in the stable state. Even if the semiconductor control rectifiers 64 and 66 are fixed, that is, the first semiconductor control rectifier 60 and the second semiconductor control rectifier 62 output fixed constant DC voltage, the temperature difference control type high temperature diffusion mist of the present invention The box is operational.
【００２４】 本考案の温度差制御型高温拡散霧箱は上述のように動作することにより、図２ に示されるように、容器１０内において、観察用窓２０と含浸布部３４との間の 空間、好適には観察用窓２０の直下に過熱蒸気層３８が形成され、水平方向に含 浸布部３４を含む空間に飽和蒸気層９０が形成され、含浸布部３４とエチレング リコールの液体２６の凝縮液面との間の空間に有効領域９２である過飽和蒸気層 が形成され、容器１０の底部にエチレングリコールの液体２６の層が形成される 。本考案においては、含浸布部ヒータ３２が、容器１０の側壁の内周面に沿って 上蓋部１２の近傍に取り付けられ、そして含浸布部３４が、含浸布部ヒータ３２ を覆うようにその上に、容器１０の側壁の内周面に沿って取り付けられ、さらに 温度検出素子４４が含浸布部３４の中に配置されて含浸布部３４の温度を直接所 望の値、上記の例では１００°Ｃに制御されるため、エチレングリコールの蒸気 発生量が一定に保たれる。また、過熱蒸気層３８とエチレングリコールの液体２ ６の凝縮液面の温度差ΔＴが一定になるように上蓋部ヒータ２２の印加電力が制 御されるので、霧箱の容器１０内の蒸気層の温度差が一定に保持される。さらに 、上蓋部ヒータ２２と含浸布部ヒータ３２の加熱電力はそれぞれ独立に制御され るため、霧箱の容器１０内の深さ方向の温度勾配と、発生したエチレングリコー ルの霧の流れが一定に制御されて、最適の安定な有効領域９２が形成され、かつ その保持が容易になる。従って、過熱蒸気層３８、飽和蒸気層９０、過飽和蒸気 層である有効領域９２、および液体２６の凝縮液面が容易にかつ安定に形成、保 持され、その結果、放射線の飛跡が形成される過飽和蒸気層である有効領域９２ が安定に保持され、放射線の飛跡が安定に観察される。例えば、本実施例では、 上記の温度設定条件で、宇宙線の飛跡が安定に観察された。The temperature difference control type high temperature diffusion fog box of the present invention operates as described above, so that the space between the observation window 20 and the impregnated cloth portion 34 is provided in the container 10 as shown in FIG. A superheated vapor layer 38 is formed in the space, preferably immediately below the observation window 20, a saturated vapor layer 90 is formed in the space including the impregnated cloth portion 34 in the horizontal direction, and the impregnated cloth portion 34 and the ethylene glycol liquid 26 are formed. A supersaturated vapor layer, which is an effective area 92, is formed in the space between the condensed liquid surface of the above and a layer of the ethylene glycol liquid 26 is formed at the bottom of the container 10. In the present invention, the impregnated cloth portion heater 32 is attached along the inner peripheral surface of the side wall of the container 10 in the vicinity of the upper lid portion 12, and the impregnated cloth portion heater 34 is placed thereon so as to cover the impregnated cloth portion heater 32. Is mounted along the inner peripheral surface of the side wall of the container 10, and the temperature detecting element 44 is arranged in the impregnated cloth portion 34 to directly control the temperature of the impregnated cloth portion 34 to a desired value, that is, 100 in the above example. Since the temperature is controlled to ° C, the amount of ethylene glycol vapor generated is kept constant. Further, since the electric power applied to the upper lid heater 22 is controlled so that the temperature difference ΔT between the superheated vapor layer 38 and the condensed liquid surface of the ethylene glycol liquid 26 becomes constant, the vapor layer in the container 10 of the fog box is controlled. The temperature difference is kept constant. Further, since the heating powers of the upper lid heater 22 and the impregnated cloth heater 32 are independently controlled, the temperature gradient in the depth direction inside the container 10 of the mist chamber and the generated mist flow of ethylene glycol are constant. Is controlled to form an optimum stable effective area 92 and facilitates its holding. Therefore, the superheated vapor layer 38, the saturated vapor layer 90, the effective region 92 which is the supersaturated vapor layer, and the condensed liquid surface of the liquid 26 are easily and stably formed and held, and as a result, a track of radiation is formed. The effective area 92, which is the supersaturated vapor layer, is stably held, and the track of radiation is stably observed. For example, in this example, cosmic ray tracks were stably observed under the above temperature setting conditions.
【００２５】 なお、本実施例はエチレングリコールを液体として用いているが、本考案は温 度差制御型高温拡散霧箱に使用しうる液体のいずれにも適用可能である。但し、 使用される液体の性質（沸点の差）によって安定な有効領域の高さ（上下の幅） は変わる。Although ethylene glycol is used as the liquid in this embodiment, the present invention is applicable to any liquid that can be used in the temperature difference control type high temperature diffusion mist chamber. However, the height (upper and lower width) of the stable effective area changes depending on the properties of the liquid used (difference in boiling point).
【００２６】[0026]
【考案の効果】 本考案の温度差制御型高温拡散霧箱は、以上説明したように構成されているの で、以下に記載されるような効果を奏する。EFFECTS OF THE INVENTION Since the temperature difference control type high temperature diffusion fog box of the present invention is configured as described above, the following effects can be obtained.
【００２７】 含浸布部加熱手段が容器の側壁部の内周面と含浸布部との間に、かつ前記含浸 布部により覆われるように設けられることにより、液体を含浸した前記含浸布部 からの霧の発生を容易にし、かつ加熱に対して霧を時間遅れなく発生させる。そ して、含浸布部温度検出手段により前記含浸布部自体の温度が検出され、当該検 出温度に基づいて含浸布部加熱手段を制御する制御手段により前記含浸布部加熱 手段が制御されることにより前記含浸布部の温度が所定の値に容易に保持される 。これらにより、含浸布部からのエチレングリコールの蒸気発生量を容易に一定 に保つことができる。Since the impregnated cloth portion heating means is provided between the inner peripheral surface of the side wall portion of the container and the impregnated cloth portion so as to be covered by the impregnated cloth portion, the impregnated cloth portion impregnated with the liquid is removed. It facilitates the generation of fog, and generates fog in time with respect to heating. Then, the temperature of the impregnated cloth portion itself is detected by the impregnated cloth portion temperature detecting means, and the impregnated cloth portion heating means is controlled by the control means for controlling the impregnated cloth portion heating means based on the detection temperature. As a result, the temperature of the impregnated cloth portion can be easily maintained at a predetermined value. With these, the amount of ethylene glycol vapor generated from the impregnated cloth portion can be easily kept constant.
【００２８】 また、温度差検出手段により前記容器の内部空間における上蓋部近傍の温度と 、前記冷却手段により冷却され凝縮して前記底部に存在する液体の液面の温度と の差が検出され、当該検出された温度差に基づいて温度差制御手段により前記上 蓋部加熱手段が制御されることにより前記温度差が所定の値に容易に保持される 。Further, the temperature difference detecting means detects a difference between the temperature in the vicinity of the upper lid portion in the internal space of the container and the temperature of the liquid surface of the liquid which is cooled and condensed by the cooling means and exists at the bottom portion, The temperature difference control means controls the upper lid heating means on the basis of the detected temperature difference, whereby the temperature difference is easily held at a predetermined value.
【００２９】 さらに、上蓋部加熱手段は前記容器の内部空間における上蓋部近傍の温度と、 前記冷却手段により冷却され凝縮して前記底部に存在する液体の液面の温度との 差により、一方、含浸布部加熱手段は前記含浸布部の温度により、それぞれ独立 に制御されるため、霧箱の容器の深さ方向の温度勾配と、発生したエチレングリ コールの霧の流れが一定に制御されて、最適の安定な有効領域が形成され、かつ 保持が容易になる。Further, the upper lid heating means uses the difference between the temperature of the vicinity of the upper lid in the internal space of the container and the temperature of the liquid surface of the liquid which is cooled and condensed by the cooling means and exists at the bottom, The heating means of the impregnated cloth part is controlled independently by the temperature of the impregnated cloth part, so that the temperature gradient in the depth direction of the container of the mist chamber and the generated mist flow of ethylene glycol are constantly controlled. , The optimum stable effective area is formed, and the holding becomes easy.
【００３０】 その結果、宇宙線（μ、π粒子等）、α、β、γ線（反跳電子）および中性子 線（反跳陽子）等の放射線の飛跡が安定に観察でき、放射線と物質の相互作用を 理解することが容易になる。As a result, traces of radiation such as cosmic rays (μ, π particles, etc.), α, β, γ rays (recoil electrons) and neutron rays (recoil protons) can be stably observed, and radiation and matter It will be easier to understand the interaction.
【図１】（Ａ）は本考案による一実施例の温度差制御型
高温拡散霧箱をその上面からみた平面図を、（Ｂ）はそ
の正面からみた正面図をそれぞれ示す。FIG. 1A is a plan view of a temperature difference control type high temperature diffusion fog box according to an embodiment of the present invention as seen from the top surface, and FIG. 1B is a front view as seen from the front surface thereof.
【図２】図１の（Ａ）のラインＡ−Ａでの断面図を示
し、温度差制御型高温拡散霧箱の主要構成要素を概略示
す図である。FIG. 2 is a cross-sectional view taken along line AA in FIG. 1A, schematically showing main components of a temperature difference control type high temperature diffusion mist chamber.
【図３】図１および図２に示される温度差制御型高温拡
散霧箱の電気回路を示すブロック図である。FIG. 3 is a block diagram showing an electric circuit of the temperature difference control type high temperature diffusion mist chamber shown in FIGS. 1 and 2.
【図４】従来の高温拡散霧箱の要部の構造を概略示すた
めの断面図である。FIG. 4 is a sectional view schematically showing a structure of a main part of a conventional high temperature diffusion fog chamber.
１０：容器 １２：上蓋部 １８：冷却ファン ２０：観察用窓 ２２：上蓋部ヒータ ２６：液体 ３２：含浸布部ヒータ ３４：含浸布部 ４０、４２、４４：温度検出素子 ５０：温度差制御指示計 ５２：含浸布部温度制御指示計 ６０：第１の半導体制御整流器 ６２：第２の半導体制御整流器 10: Container 12: Upper Lid 18: Cooling Fan 20: Observation Window 22: Upper Lid Heater 26: Liquid 32: Impregnated Cloth Heater 34: Impregnated Cloth 40, 42, 44: Temperature Detection Element 50: Temperature Difference Control Instruction Total 52: Impregnated cloth part temperature control indicator 60: First semiconductor controlled rectifier 62: Second semiconductor controlled rectifier
Claims (1)
容器と、 前記容器の内部を密閉するため前記容器の上面を覆い、
かつ前記容器の内部を見得る構造を有する上蓋部と、 前記容器の内部空間における前記上蓋部近傍を加熱する
ため前記上蓋部に設けられた上蓋部加熱手段と、 前記容器の側壁部の内周面に沿い、かつ前記上面の近傍
でそれから離間して設けられ、かつ液体を含浸した含浸
布部と、 前記含浸布部に含浸した液体を気化するため前記含浸布
部を加熱する含浸布部加熱手段と、 前記容器の底面近傍にある前記気化した液体の蒸気を冷
却して凝縮させるため前記容器の底部の外側に設けられ
た冷却手段とを備える温度差制御型高温拡散霧箱におい
て、 前記含浸布部加熱手段は前記容器の側壁部の内周面と前
記含浸布部との間に、かつ前記含浸布部により覆われる
ように設けられ、 前記容器の内部空間における前記上蓋部近傍の温度と、
前記冷却手段により冷却され凝縮して前記容器の底部に
存在する液体の液面の温度との差を検出する温度差検出
手段と、 前記温度差検出手段により検出された温度差が所定の値
となるよう前記上蓋部加熱手段を制御する温度差制御手
段と、 前記含浸布部の温度を検出するため前記含浸布部内に配
置された含浸布部温度検出手段と、 前記含浸布部温度検出手段により検出された前記含浸布
部の温度が所定の値となるよう前記含浸布部加熱手段を
制御する制御手段とを設けることを特徴とする温度差制
御型高温拡散霧箱。1. A container having a side wall portion and a bottom portion, the top surface of which is open, and the container which covers the top surface of the container to seal the inside of the container,
And an upper lid part having a structure through which the inside of the container can be seen, an upper lid part heating means provided in the upper lid part for heating the vicinity of the upper lid part in the internal space of the container, and an inner circumference of a side wall part of the container An impregnated cloth portion impregnated with a liquid, which is provided along a surface and in the vicinity of the upper surface and spaced from the impregnated cloth portion, and heats the impregnated cloth portion for vaporizing the liquid impregnated in the impregnated cloth portion. A temperature difference control type high temperature diffusion fog box, which is provided outside the bottom of the container for cooling and condensing the vaporized liquid vapor in the vicinity of the bottom surface of the container. The cloth part heating means is provided between the inner peripheral surface of the side wall part of the container and the impregnated cloth part, and so as to be covered by the impregnated cloth part, and the temperature in the vicinity of the upper lid part in the internal space of the container, ,
A temperature difference detection unit that detects a difference between the temperature of the liquid surface of the liquid that is cooled and condensed by the cooling unit and that exists at the bottom of the container; and a temperature difference detected by the temperature difference detection unit has a predetermined value. A temperature difference control means for controlling the upper lid heating means, an impregnating cloth portion temperature detecting means arranged in the impregnating cloth portion for detecting the temperature of the impregnating cloth portion, and an impregnating cloth portion temperature detecting means. A temperature difference control type high temperature diffusion fog box, which is provided with a control means for controlling the impregnated cloth portion heating means so that the detected temperature of the impregnated cloth portion becomes a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5839293U JPH0729490U (en) | 1993-10-28 | 1993-10-28 | Temperature difference controlled high temperature diffusion fog chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5839293U JPH0729490U (en) | 1993-10-28 | 1993-10-28 | Temperature difference controlled high temperature diffusion fog chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0729490U true JPH0729490U (en) | 1995-06-02 |
Family
ID=13083084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5839293U Pending JPH0729490U (en) | 1993-10-28 | 1993-10-28 | Temperature difference controlled high temperature diffusion fog chamber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007232416A (en) * | 2006-02-28 | 2007-09-13 | Nakamura Scientific Co Ltd | Low-temperature diffusion type cloud chamber |
| CN113189638A (en) * | 2021-04-21 | 2021-07-30 | 中国科学院国家空间科学中心 | Particle motion trajectory imaging device based on particle track imaging cloud chamber |
-
1993
- 1993-10-28 JP JP5839293U patent/JPH0729490U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007232416A (en) * | 2006-02-28 | 2007-09-13 | Nakamura Scientific Co Ltd | Low-temperature diffusion type cloud chamber |
| JP4537332B2 (en) * | 2006-02-28 | 2010-09-01 | 株式会社ナリカ | Low temperature diffusion type cloud chamber |
| CN113189638A (en) * | 2021-04-21 | 2021-07-30 | 中国科学院国家空间科学中心 | Particle motion trajectory imaging device based on particle track imaging cloud chamber |
| CN113189638B (en) * | 2021-04-21 | 2024-04-05 | 中国科学院国家空间科学中心 | Particle motion trail imaging device based on particle trail imaging cloud chamber |
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