JP2922107B2 - Measurement method of surface temperature of inspection object - Google Patents

Measurement method of surface temperature of inspection object

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Publication number
JP2922107B2
JP2922107B2 JP5332218A JP33221893A JP2922107B2 JP 2922107 B2 JP2922107 B2 JP 2922107B2 JP 5332218 A JP5332218 A JP 5332218A JP 33221893 A JP33221893 A JP 33221893A JP 2922107 B2 JP2922107 B2 JP 2922107B2
Authority
JP
Japan
Prior art keywords
air
sealed package
gas
conveyor
surface temperature
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
Application number
JP5332218A
Other languages
Japanese (ja)
Other versions
JPH07190860A (en
Inventor
宣秀 仲川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HAUSU SHOKUHIN KK
Original Assignee
HAUSU SHOKUHIN KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HAUSU SHOKUHIN KK filed Critical HAUSU SHOKUHIN KK
Priority to JP5332218A priority Critical patent/JP2922107B2/en
Priority to TW083111887A priority patent/TW278137B/zh
Priority to US08/359,559 priority patent/US5537859A/en
Priority to KR1019940035347A priority patent/KR100289881B1/en
Priority to CN94120494A priority patent/CN1048554C/en
Priority to EP94120294A priority patent/EP0663340B1/en
Priority to DE69417201T priority patent/DE69417201T2/en
Publication of JPH07190860A publication Critical patent/JPH07190860A/en
Application granted granted Critical
Publication of JP2922107B2 publication Critical patent/JP2922107B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、被検査物の表面温度測
定方法に関し、更に詳細には、被検査物の表面温度分布
を放射電磁波で測定することにより、被検査物の表面温
度を測定する方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring the surface temperature of an object to be inspected, and more particularly, to measuring the surface temperature of the object to be inspected by measuring the surface temperature distribution of the object by radiated electromagnetic waves. On how to do it.

【0002】[0002]

【発明の背景】レトルトパウチにカレー、シチュー等の
液状食品と空気、不活性ガス等の気体とを一緒に収容し
て密封した含気密封包装体は、回転させながら加圧・加
熱する回転式レトルト殺菌処理が行われている。本発明
者等は、この回転式レトルト殺菌処理において、収容さ
れている気体の割合、すなわち含気率が殺菌処理の効
率、すなわち殺菌効果に大きな影響を及ぼすということ
を多くの実験の結果から知見した。すなわち、含気密封
包装体の含気率を2ないし50%にすると殺菌効果が大
きくなり、また複数の含気密封包装体間の含気率のばら
つきが−3ないし10%になると殺菌の不均一性や過加
熱による収容物の劣化が少なくなるという結論が得られ
た。ところで、可撓性フィルムによって形成されたレト
ルトパウチ容器は、柔軟性があるから、剛性あるいは準
剛性のカップ、トレー等に比較して含気率を調整したり
測定することが非常に困難である。かかる現状を踏まえ
て本発明者等は、含気密封包装体の含気率を非接触で迅
速にかつ高精度に、特に産業上利用可能なように連続的
に測定することができる方法及び装置を開発し、含気密
封包装体の表面の温度分布を検出することによって含気
率を演算することを特徴とする含気密封包装体の含気率
測定方法、及び含気率密封包装体を載置する載置台、該
載置台の近傍に配置され、含気密封包装体の表面の温度
分布を検出する検出部とを包含することを特徴とする含
気密封包装体の含気率測定装置として先に出願した。
BACKGROUND OF THE INVENTION A gas-tight sealed package containing a retort pouch and a liquid food such as curry and stew and a gas such as air and an inert gas is sealed together. A retort sterilization process has been performed. The present inventors have learned from the results of many experiments that in this rotary retort sterilization treatment, the ratio of the contained gas, that is, the air content greatly affects the efficiency of the sterilization treatment, that is, the sterilization effect. did. That is, when the air content of the air-sealed package is set to 2 to 50%, the sterilizing effect is increased, and when the variation of the air content among a plurality of air-sealed packages becomes -3 to 10%, sterilization failure occurs. It was concluded that the uniformity and the deterioration of the contents due to overheating were reduced. By the way, since the retort pouch container formed of the flexible film is flexible, it is very difficult to adjust or measure the air content compared to a rigid or semi-rigid cup, tray, or the like. . In view of this situation, the present inventors have developed a method and apparatus capable of measuring the air content of an air-tightly sealed package quickly and accurately without contact, particularly for industrial use. A method for measuring the air content of an air-impregnated sealed package characterized by calculating the air content by detecting the temperature distribution on the surface of the air-impregnated sealed package, and an air-tight sealed package. An air content measurement device for an air-tightly sealed package, comprising: a mounting table on which the sample is to be mounted; and a detection unit disposed near the mounting table and configured to detect a temperature distribution on a surface of the air-tightly sealed package. Filed earlier.

【0003】本発明者等は、上記した密封包装体の表面
の温度分布の測定について、種々の密封包装体で確認実
験を行ったところ、該密封包装体の表面に文字や模様等
の印字が施されている場合は、印字部分と非印字部分と
で密封包装体の表面の放射電磁波に相違があり、そのた
めに密封包装体の表面の正確な温度分布を測定すること
ができない場合がある、という現象に遭遇した。本発明
者等は、かかる現象に着目して鋭意研究を行った結果、
密封包装体の表面に半透明または不透明の薄層シートを
密着させることにより、上記問題を効果的に解決するこ
とができる、という知見を得た。また、こうした手段
は、密封包装体の場合に限らず、他の容器の場合にも適
用でき、更には放射電磁波を発するものであれば食品以
外の分野、例えば薬品や塗料等の分野においても適用で
きる、という知見を得た。
[0003] The present inventors have conducted experiments on the measurement of the temperature distribution on the surface of the hermetically sealed package described above with various hermetically sealed packages, and found that letters, patterns, etc. were printed on the surface of the hermetically sealed package. If applied, there is a difference in the radiated electromagnetic waves on the surface of the sealed package between the printed part and the non-printed part, so that it may not be possible to measure the accurate temperature distribution on the surface of the sealed package, I encountered this phenomenon. The present inventors have conducted intensive research focusing on such a phenomenon,
It has been found that the above problem can be effectively solved by bringing a translucent or opaque thin sheet into close contact with the surface of the sealed package. In addition, such means can be applied not only to a sealed package, but also to other containers, and can be applied to fields other than food, such as chemicals and paints, as long as they emit radiated electromagnetic waves. I got the knowledge that I can do it.

【0004】[0004]

【発明の目的】本発明は、表面に文字や模様等の印字が
施されている密封包装体に限らず、放射電磁波を発する
被検査物の表面の正確な温度分布を測定することができ
る被検査物の表面温度測定方法を提供することを目的と
するものである。
SUMMARY OF THE INVENTION The present invention is not limited to a hermetically sealed package having characters or patterns printed on its surface, but can be used to measure an accurate temperature distribution on the surface of a test object that emits radiated electromagnetic waves. It is an object of the present invention to provide a method for measuring the surface temperature of an inspection object.

【0005】[0005]

【発明の構成】本発明は、被検査物の表面温度分布を放
射電磁波で測定することにより、被検査物の表面温度を
測定する方法において、中央に穴を有する押さえ板で密
封包装体の表面を押圧し、被検査物の表面に半透明また
は不透明の薄層シートを密着させることを特徴とする被
検査物の表面温度測定方法である。本発明の実施の形態
は、以下のとおりである。被検査物が、柔軟包装体によ
り包装された密封包装体であることを特徴とする。中央
に穴を有する押さえ板の穴部分に半透明または不透明の
薄層シートを張ることを特徴とする。本発明で使用し得
る薄層シートとしては、半透明または不透明の薄層シー
トであれば特に限定されるものではないが、シリコンゴ
ム、ポリエチレン等の合成樹脂、アルミ箔等の金属箔を
例示することができ、シート厚としては0.01〜0.2mm
程度であることが好ましい。また、中央に穴を有する押
さえ板の穴部分に薄層シートを張り付ける場合は、ある
程度伸縮性のあるシリコンゴム、ポリエチレン等の合成
樹脂を使用する方が好ましい。
SUMMARY OF THE INVENTION The present invention relates to a method for measuring the surface temperature of a test object by measuring the surface temperature distribution of the test object with radiated electromagnetic waves. , And a semi-transparent or opaque thin layer sheet is brought into close contact with the surface of the inspection object, thereby measuring the surface temperature of the inspection object. Embodiments of the present invention are as follows. The inspection object is a hermetically sealed package that is packaged by a flexible package. The translucent or opaque thin sheet is stretched in the hole portion of the holding plate having a hole in the center. The thin sheet that can be used in the present invention is not particularly limited as long as it is a translucent or opaque thin sheet, and examples thereof include silicon rubber, a synthetic resin such as polyethylene, and a metal foil such as an aluminum foil. The sheet thickness is 0.01-0.2mm
It is preferred that it is about. Further, when a thin layer sheet is stuck to the hole portion of the holding plate having a hole in the center, it is preferable to use a synthetic resin such as silicone rubber or polyethylene which has a certain degree of elasticity.

【0006】[0006]

【作用】上記構成によれば、半透明または不透明の薄層
シートを被検査物の表面に密着させることにより、被検
査物の表面に文字や模様等の印字が施されていると否と
にかかわらず、正確に当該被検査物の表面温度の分布を
測定することができる。従って、例えば液体等の内容物
と気体、水と油のように比重が異なり、かつ静置により
分離するような流動物を収容した密封包装体において、
比重の軽い流動物の含有量を、密封包装体の放射電磁波
でその表面温度の分布を測定することにより検定しよう
とする場合に効果的である。
According to the above construction, the translucent or opaque thin sheet is brought into close contact with the surface of the object to be inspected to determine whether characters, patterns, or the like are printed on the surface of the object. Regardless, the distribution of the surface temperature of the inspection object can be accurately measured. Therefore, for example, in a hermetically sealed package containing a fluid such as a liquid and the like, which have different specific gravities such as gas and water and oil, and are separated by standing,
It is effective when the content of a fluid having a low specific gravity is to be verified by measuring the distribution of the surface temperature of the hermetically sealed package by radiated electromagnetic waves.

【0007】[0007]

【実施例】以下、本発明の実施例の含気密封包装体の測
定装置を図に基づいて説明する。含気密封包装体の不良
品検出装置1は、図1に示すように、例えばカレー、シ
チュー等の充填物を空気、不活性ガス等の気体と共にレ
トルトパウチに充填密封して得られた含気密封包装体を
寝かせた状態で搬送する第1コンベアー(搬送路)10
1を有する。また、スタンディングパウチ等が常に一定
の形状を保持させるようにすることが、各含気密封包装
体中の気体の位置をバラツキなく安定させ、含気密封包
装体中の気体の体積をより高精度にかつ安定して測定し
得る点で望ましい。そうした手段として本発明では、第
一コンベア101の後述する検出器211で含気密封包
装体Aの表面温度を検出するに当たっては、中央に穴を
有する押さえ板で含気密封包装体Aを押圧する。これに
よって、前述した如く含気密封包装体中の気体の形状を
一定に保持することができる。この場合、押さえ板とし
ては、密封包装体の形状に類似した形状で且つ中央の穴
の形状は円形ないし楕円形にするのが好ましく、また、
図3に示すように、押さえ板の穴の最大径をa、これと
直交する方向の最大径をbとした時に、穴の大きさが
b:a=1:1〜2であること、押さえ板の穴の上面の
最大径をc、押さえ板の穴の下面の最大径をdとした時
に、c:d=1:1〜3であることを満足する穴である
ことが好ましい。更には、押さえ板としては、密封包装
体の厚さをT、押さえ板の厚さをtとした時に、t=0.
05〜1Tとなるようにすることが好ましい。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an apparatus for measuring an air-tightly sealed package according to an embodiment of the present invention. As shown in FIG. 1, a defective product detecting device 1 for an air-tight sealed package is obtained by filling and sealing a retort pouch together with a gas such as air and an inert gas, for example, a curry, a stew or the like. First conveyor (transport path) 10 for transporting hermetically sealed packages in a lying state
One. In addition, by keeping the standing pouch etc. always in a fixed shape, the position of the gas in each air-tight sealed package is stabilized without variation, and the volume of the gas in the air-tight sealed package is more accurately determined. It is desirable in that the measurement can be performed stably and stably. As such means, in the present invention, in detecting the surface temperature of the air-containing sealed package A with the detector 211 described later of the first conveyor 101, the air-containing sealed package A is pressed by a pressing plate having a hole in the center. . Thereby, the shape of the gas in the air-containing sealed package can be kept constant as described above. In this case, it is preferable that the pressing plate has a shape similar to the shape of the sealed package and the shape of the center hole is circular or elliptical.
As shown in FIG. 3, when the maximum diameter of the hole of the holding plate is a and the maximum diameter in the direction perpendicular to this is b, the size of the hole is b: a = 1: 1 to 2; When the maximum diameter of the upper surface of the hole of the plate is c and the maximum diameter of the lower surface of the hole of the holding plate is d, the hole preferably satisfies c: d = 1: 1-3. Further, as the pressing plate, when the thickness of the sealed package is T and the thickness of the pressing plate is t, t = 0.
It is preferable to set it to be 0.5 to 1T.

【0008】そして、当該押さえ板の中央の穴部に半透
明または不透明の薄層シートを張り付ける。これによ
り、密封包装体の表面に文字や模様等の印字が施されて
いても、密封包装体の表面の赤外線の輻射率を一様とす
ることが可能となる。上記第1コンベアー101の下流
の終端部には、含気密封包装体の良品を例えば殺菌工程
等の次工程に搬送するための第2コンベアー201と、
含気密封包装体の不良品を搬送するための第3コンベア
ー301とが連接されており、更に、該第1コンベアー
101と第2コンベアー201、第3コンベアー301
との連接部分の近傍には、所定の含気率を有しているか
否かによって含気密封包装体を選別するための揺動部材
2が配設されている。該揺動部材2を切り換えることに
より、第1コンベアー101を、第2コンベアー201
又は第2コンベアー301と択一的に連通させ、含気密
封包装体が所定の含気率を有しているか否かすなわち良
品と不良品とに選別する。上記コンベアー101の搬送
路の途中には、含気密封包装体を冷却するための冷風供
給装置103が配設されている。これにより、含気密封
包装体表面の該含気密封包装体中の気体に接する部分
(以下、含気密封包装体表面の気体に接する部分とい
う)と含気密封包装体表面の該含気密封包装体中の内容
物すなわち充填物に接する部分(以下、含気密封包装体
表面の充填物に接する部分という)との熱容量の差を利
用して双方の温度を明瞭に区別することができる。上記
冷却手段の採用には、充填物が炊き上げ直後のカレー、
シチュー等の高温のものである場合に、特に有効であ
る。なお、冷却手段としては、冷風供給装置の代わり
に、冷水を含気密封包装体にシャワー状又はスプレー状
に振り注ぐ冷水供給装置、或いは、含気密封包装体を冷
水に浸漬する冷水槽等を採用することもできる。
[0008] Then, a translucent or opaque thin sheet is attached to the center hole of the holding plate. This makes it possible to make the emissivity of infrared rays on the surface of the sealed package uniform, even if characters or patterns are printed on the surface of the sealed package. At the downstream end of the first conveyor 101, a second conveyor 201 for transporting non-defective air-sealed packages to the next process such as a sterilization process,
A third conveyor 301 for transporting defective air-tightly sealed packages is connected to the first conveyor 101, the second conveyor 201, and the third conveyor 301.
A swinging member 2 for selecting an air-tightly sealed package according to whether or not it has a predetermined air content is disposed in the vicinity of a portion where the air-tight sealed package is connected. By switching the swing member 2, the first conveyor 101 is moved to the second conveyor 201.
Alternatively, it is selectively communicated with the second conveyor 301 to determine whether or not the air-containing sealed package has a predetermined air content, that is, a good product and a defective product. A cool air supply device 103 for cooling the air-sealed hermetically sealed package is provided in the middle of the conveyor path of the conveyor 101. Thus, the portion of the surface of the air-sealed package that comes into contact with the gas in the air-sealed package (hereinafter referred to as the portion that comes into contact with the gas on the surface of the air-sealed package) and the surface of the air-sealed package that are air-sealed By utilizing the difference in heat capacity between the content in the package, that is, the portion in contact with the filling (hereinafter referred to as the portion in contact with the filling on the surface of the air-tightly sealed package), both temperatures can be clearly distinguished. In the adoption of the above cooling means, curry immediately after the filling is cooked,
This is particularly effective when the temperature is high such as stew. In addition, as the cooling means, instead of the cold air supply device, a cold water supply device in which cold water is sprinkled in the form of a shower or a spray into an air-containing sealed package, or a cold water tank or the like in which the air-containing sealed package is immersed in cold water. Can also be adopted.

【0009】また、冷却手段に代えて、加熱手段を採用
することもできる。加熱手段の採用は、充填物が低温の
ものである場合に、特に有効である。該加熱手段として
は、熱風を含気密封包装体に吹きつける熱風供給装置、
熱水を含気密封包装体にシャワー状又はスプレー状に振
り注ぐ熱水供給装置、或いは、含気密封包装体を熱水に
浸漬する熱水槽等がある。上記第1コンベアー101の
搬送路途中の冷風供給装置103の近傍には、上方に、
第1コンベアー101上の含気密封包装体Aから放射さ
れる赤外線により含気密封包装体A表面の温度を検出す
る検出器211が配置されている。該検出器211は、
得られた温度情報を熱像データに変換する回路20、熱
像データを記憶する記憶部30、上記熱像データを基に
所定温度範囲の部分の面積を検知する検知手段40、検
知手段40により得られた面積が所定範囲にあるか否か
を判定する判定回路50、判定回路50により得られた
判定結果に基づいて上記選別手段(揺動部材2)を制御
する制御部60に順次接続されている。検出器211
は、含気密封包装体Aの表面全体について温度分布像を
検出するものであってもよいし、あるいは含気密封包装
体Aの表面の1点あるいは複数の点の温度を検出するも
のであってもよい。
In addition, a heating means may be employed in place of the cooling means. The use of a heating means is particularly effective when the filling is of a low temperature. As the heating means, a hot air supply device for blowing hot air onto the air-containing sealed package,
There is a hot water supply device in which hot water is sprinkled into the air-containing sealed package in a shower or spray form, or a hot water tank in which the air-containing sealed package is immersed in hot water. In the vicinity of the cold air supply device 103 in the middle of the conveyance path of the first conveyor 101,
A detector 211 for detecting the temperature of the surface of the air-tightly sealed package A by infrared rays emitted from the air-tightly sealed package A on the first conveyor 101 is arranged. The detector 211 is
A circuit 20 for converting the obtained temperature information into thermal image data, a storage unit 30 for storing the thermal image data, a detecting means 40 for detecting the area of a portion within a predetermined temperature range based on the thermal image data, and a detecting means 40 A determination circuit 50 for determining whether or not the obtained area is within a predetermined range, and a control unit 60 for controlling the selection means (oscillating member 2) based on the determination result obtained by the determination circuit 50 are sequentially connected. ing. Detector 211
May detect the temperature distribution image of the entire surface of the air-sealed package A, or may detect the temperature of one or more points on the surface of the air-sealed package A. You may.

【0010】次に、含気密封包装体の不良品検出装置1
の作用について説明する。上述した構成の含気密封包装
体の不良品検出装置1は、先ず、第1コンベアー101
により含気密封包装体Aを連続的に搬送する。含気密封
包装体Aが冷風供給装置103の位置までくると、含気
密封包装体Aが冷風供給装置103により冷却処理され
る。これにより、図2に示すように、含気密封包装体表
面の気体lに接する部分Bと含気密封包装体表面の充填
物mに接する部分Cとの温度差を明瞭にすることができ
る。上記冷風の条件としては、−30〜30℃が例示で
きる。上記冷却処理と同時に又は直後に、上記検出器2
11が第1コンベアー101上の含気密封包装体Aから
放射される赤外線により含気密封包装体A表面の温度を
検出する。得られた温度情報は、熱像データに変換する
回路20により熱像データに変換され、記憶部30に格
納される。続いて、上記検知手段40によって、上記熱
像データを基に、上記含気密封包装体表面の所定温度範
囲の部分すなわち含気密封包装体表面の気体に接する部
分Bの面積が検知される(尚、上記所定温度範囲は、具
体的には、例えば充填物の温度が70℃の場合、30〜
50℃である)。次に、上記判定回路50により、上記
面積が所定範囲にあるか否かの判定がなされる。
Next, an apparatus 1 for detecting a defective product of an air-tightly sealed package.
The operation of will be described. The apparatus 1 for detecting a defective product of the air-tightly sealed package having the above-described configuration includes first the first conveyor 101.
Continuously transports the air-containing sealed package A. When the air-containing sealed package A reaches the position of the cold air supply device 103, the air-containing sealed package A is cooled by the cold air supply device 103. As a result, as shown in FIG. 2, the temperature difference between the portion B of the surface of the air-sealed sealed package that contacts the gas l and the portion C of the surface of the air-sealed sealed package that contacts the filling m can be clarified. Examples of the condition of the cold air include −30 to 30 ° C. Simultaneously with or immediately after the cooling process, the detector 2
11 detects the temperature of the surface of the air-tightly sealed package A by infrared rays radiated from the air-tightly sealed package A on the first conveyor 101. The obtained temperature information is converted to thermal image data by the thermal image data conversion circuit 20 and stored in the storage unit 30. Subsequently, based on the thermal image data, the detection means 40 detects the area of a portion of the surface of the air-sealed sealed package in a predetermined temperature range, that is, a portion B of the surface of the air-sealed sealed package that is in contact with the gas ( In addition, the above-mentioned predetermined temperature range is, specifically, when the temperature of the filler is 70 ° C., 30 to
50 ° C.). Next, the determination circuit 50 determines whether the area is within a predetermined range.

【0011】含気密封包装体においては、含気密封包装
体表面の気体に接する部分の面積は、含気密封包装体中
の気体の体積すなわち含気率と相関関係にある。従っ
て、上記含気密封包装体表面の気体に接する部分の面積
が、所定範囲にあるか否かを判定することにより、含気
密封包装体中の気体の体積が適切な範囲にあるか否かを
簡単に判定することができる。なお、上記含気密封包装
体表面の気体に接する部分の面積と含気密封包装体中の
気体の体積とが具体的にどのような相関関係にあるか
は、予め含気密封包装体中の気体の体積のみを種々変化
させ、含気密封包装体表面の気体に接する部分の面積が
どのように変化するかを調べることにより、容易に知る
ことができる。上記判定においては、該面積が所定範囲
にある場合には、該含気密封包装体Aは気体の含気率が
所定範囲にある良品であると判断され、一方、該面積が
所定範囲にない場合には、該含気密封包装体は含気率が
多すぎる又は少なすぎる不良品であると判断される。上
記判定回路50の判定結果を基に、上記制御回路60
は、検出器211によって含気密封包装体Aの表面の温
度が検出されてから該含気密封包装体Aが第1コンベア
ー101の終端部に到達するまでの間に揺動部材2を制
御する。揺動部材2は、制御信号に基づいて、第1コン
ベアー101を、第2コンベアー201又は第3コンベ
アー301と択一的に連通させる。これにより、含気密
封包装体Aの良品は第2コンベアー201に送られ、含
気密封包装体Aの不良品は第3コンベアー301に送ら
れる。
In the air-tightly sealed package, the area of the surface of the air-tightly sealed package that comes into contact with the gas has a correlation with the volume of the gas in the air-tightly sealed package, that is, the air content. Therefore, by determining whether the area of the portion of the surface of the gas-tight sealed package that contacts the gas is within a predetermined range, whether the volume of gas in the gas-tight sealed package is within an appropriate range is determined. Can be easily determined. The specific relationship between the area of the portion of the surface of the gas-sealed sealed package that contacts the gas and the volume of the gas in the gas-sealed sealed package is determined in advance in the gas-sealed sealed package. It can be easily known by changing only the volume of the gas in various ways and examining how the area of the portion of the surface of the air-containing sealed package in contact with the gas changes. In the above determination, when the area is in the predetermined range, the air-tightly sealed package A is determined to be a non-defective product having the gas content of the predetermined range, while the area is not in the predetermined range. In such a case, it is determined that the air-impregnated hermetically sealed package is a defective product having too much or too little air content. Based on the determination result of the determination circuit 50, the control circuit 60
Controls the swinging member 2 between the time when the temperature of the surface of the air-tightly sealed package A is detected by the detector 211 and the time when the air-tightly sealed package A reaches the end of the first conveyor 101. . The swinging member 2 selectively communicates the first conveyor 101 with the second conveyor 201 or the third conveyor 301 based on the control signal. As a result, a good product of the air-sealed package A is sent to the second conveyor 201, and a defective product of the air-sealed package A is sent to the third conveyor 301.

【0012】本発明の他の実施例としては、検出器を冷
風供給装置より下流に配置してもよい。また、本発明の
他の実施例としては、検知手段により得られた面積が所
定範囲にあるか否かを判定する判定回路の代わりに、検
知手段で得られた面積から含気密封包装体中の気体の容
積を算出する算出回路及び算出回路により得られた含気
密封包装体中の気体の容積が所定範囲にあるか否かを判
定する判定回路を具備する。本発明の更に他の実施例と
しては、充填物と室温に大きな温度差がある場合、上述
した冷却手段や加熱手段を備えない。この場合において
も、内容物の充填後一定の時間が経過すれば、含気密封
包装体表面の気体に接する部分と内容物すなわち充填物
に接する部分との温度差が現れ、検出器によって含気率
の測定が可能になる。
In another embodiment of the present invention, the detector may be located downstream of the cool air supply device. Further, as another embodiment of the present invention, instead of the determination circuit for determining whether or not the area obtained by the detection means is within a predetermined range, the area obtained by the detection means in the air-containing sealed package is used. And a determination circuit for determining whether or not the volume of gas in the gas-containing sealed package obtained by the calculation circuit is within a predetermined range. As yet another embodiment of the present invention, when there is a large temperature difference between the packing and the room temperature, the above-mentioned cooling means and heating means are not provided. In this case as well, after a certain period of time has elapsed after the filling of the contents, a temperature difference between the portion of the surface of the air-containing sealed package that comes into contact with the gas and the contents, that is, the portion that comes into contact with the filling, appears, and the detector detects the air content. The rate can be measured.

【0013】[0013]

【発明の効果】本発明によれば、半透明または不透明の
薄層シートを被検査物の表面に密着させるだけで、被検
査物の表面に文字や模様等の印字が施されていると否と
にかかわらず、正確に当該被検査物の表面温度の分布を
測定することができる。従って、例えば液体等の内容物
と気体、水と油のように比重が異なり、且つ静置により
分離するような流動物を収容した密封包装体において、
比重の軽い流動物の含有量を密封包装体の放射電磁波で
その表面温度の分布を測定することにより検定しようと
する場合に効果的である。また、測定に当たって、中央
に穴を有する押え板で密封包装体を押圧することによ
り、上記測定をより正確に行うことが可能となる。
According to the present invention, it is determined that characters or patterns are printed on the surface of the inspection object only by bringing the translucent or opaque thin sheet into close contact with the surface of the inspection object. Regardless, the distribution of the surface temperature of the inspection object can be accurately measured. Therefore, for example, in a hermetically sealed package containing a fluid such as a liquid and the like and a gas having different specific gravities, such as water and oil, and separated by standing,
This is effective when the content of the fluid having a low specific gravity is to be verified by measuring the distribution of the surface temperature of the hermetically sealed package using the radiated electromagnetic waves. Also, by pressing the hermetically sealed package with a presser plate having a hole in the center in the measurement, the measurement can be performed more accurately.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施例の含気密封包装体の測定装置の
構成説明図である。
FIG. 1 is a configuration explanatory view of a measuring device for an air-containing hermetically sealed package according to an embodiment of the present invention.

【図2】含気密封包装体の断面図である。FIG. 2 is a cross-sectional view of the air-tightly sealed package.

【図3】押さえ板の平面図である。FIG. 3 is a plan view of a holding plate.

【符号の説明】[Explanation of symbols]

A 含気密封包装体 1 含気密封包装体の不良品検出装置 2 揺動部材 20 温度情報を熱像データに変換する回路 30 熱像データを記憶する記憶部 40 検知手段 50 判定回路 60 制御回路 101 第1コンベアー 103 冷風供給装置 201 第2コンベアー 211 検出器 301 第3コンベアー Reference Signs List A Air-sealed sealed package 1 Defective product detection device for air-sealed sealed package 2 Oscillating member 20 Circuit for converting temperature information into thermal image data 30 Storage unit for storing thermal image data 40 Detecting means 50 Judgment circuit 60 Control circuit 101 First Conveyor 103 Cold Air Supply Device 201 Second Conveyor 211 Detector 301 Third Conveyor

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 被検査物の表面温度分布を放射電磁波で
測定することにより、被検査物の表面温度を測定する方
法において、 中央に穴を有する押さえ板で密封包装体の表面を押圧
し、被検査物の表面に半透明または不透明の薄層シート
を密着させることを特徴とする被検査物の表面温度測定
方法。
1. A method for measuring the surface temperature distribution of an object to be inspected by radiating electromagnetic waves to measure the surface temperature of the object to be inspected, wherein the surface of the sealed package is pressed by a holding plate having a hole in the center. A method for measuring the surface temperature of an object to be inspected, wherein a translucent or opaque thin sheet is adhered to the surface of the object to be inspected.
【請求項2】 被検査物が、柔軟包装体により包装され
た密封包装体であることを特徴とする請求項1記載の被
検査物の表面温度測定方法。
2. The method for measuring the surface temperature of an inspection object according to claim 1, wherein the inspection object is a sealed package wrapped by a flexible package.
【請求項3】 中央に穴を有する押さえ板の穴部分に半
透明または不透明の薄層シートを張ることを特徴とする
請求項1記載の被検査物の表面温度測定方法。
3. The method for measuring the surface temperature of an object to be inspected according to claim 1, wherein a translucent or opaque thin sheet is stretched in a hole portion of the holding plate having a hole in the center.
JP5332218A 1993-12-21 1993-12-27 Measurement method of surface temperature of inspection object Expired - Lifetime JP2922107B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP5332218A JP2922107B2 (en) 1993-12-27 1993-12-27 Measurement method of surface temperature of inspection object
TW083111887A TW278137B (en) 1993-12-21 1994-12-19
KR1019940035347A KR100289881B1 (en) 1993-12-21 1994-12-20 Continuous measuring method of fluid volume with smaller specific gravity in flexible closed container
US08/359,559 US5537859A (en) 1993-12-21 1994-12-20 Method of determining the amount of the fluid content with a smaller specific gravity in airtightly sealed flexible containers on a continuous basis
CN94120494A CN1048554C (en) 1993-12-21 1994-12-21 Method of determining the amount of the fluid content with a smaller specific gravity in airtightly sealed flexible containers on a continuous basis
EP94120294A EP0663340B1 (en) 1993-12-21 1994-12-21 Method of determining the amount of the fluid content with a smaller specific gravity in airtightly sealed flexible containers on a continuous basis
DE69417201T DE69417201T2 (en) 1993-12-21 1994-12-21 Method for continuously determining a lower specific gravity component within a sealed flexible container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5332218A JP2922107B2 (en) 1993-12-27 1993-12-27 Measurement method of surface temperature of inspection object

Publications (2)

Publication Number Publication Date
JPH07190860A JPH07190860A (en) 1995-07-28
JP2922107B2 true JP2922107B2 (en) 1999-07-19

Family

ID=18252498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5332218A Expired - Lifetime JP2922107B2 (en) 1993-12-21 1993-12-27 Measurement method of surface temperature of inspection object

Country Status (1)

Country Link
JP (1) JP2922107B2 (en)

Also Published As

Publication number Publication date
JPH07190860A (en) 1995-07-28

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