JPH034087B2 - - Google Patents
Info
- Publication number
- JPH034087B2 JPH034087B2 JP25786184A JP25786184A JPH034087B2 JP H034087 B2 JPH034087 B2 JP H034087B2 JP 25786184 A JP25786184 A JP 25786184A JP 25786184 A JP25786184 A JP 25786184A JP H034087 B2 JPH034087 B2 JP H034087B2
- Authority
- JP
- Japan
- Prior art keywords
- case
- detector
- temperature
- air
- cooler
- 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
- 238000005259 measurement Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B15/00—Cooling
- G12B15/04—Cooling by currents of fluid, e.g. air, in open cycle
-
- 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
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/0252—Constructional arrangements for compensating for fluctuations caused by, e.g. temperature, or using cooling or temperature stabilization of parts of the device; Controlling the atmosphere inside a photometer; Purge systems, cleaning devices
-
- 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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0286—Constructional arrangements for compensating for fluctuations caused by temperature, humidity or pressure, or using cooling or temperature stabilization of parts of the device; Controlling the atmosphere inside a spectrometer, e.g. vacuum
-
- 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
- G01J5/02—Constructional details
- G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
- G01J5/061—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity by controlling the temperature of the apparatus or parts thereof, e.g. using cooling means or thermostats
-
- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B17/00—Screening
- G12B17/06—Screening from heat
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、光を用いて測定物体の性状を測定
するような光学的測定装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an optical measurement device that measures the properties of a measurement object using light.
［従来の技術］
光を利用して測定物体の温度、水分、厚み等の
性状を測定する装置、検出器は、80℃以上の高
温、多湿環境で使用されることがある。高温環境
下で使用すると、検出器内部の赤外線検出素子や
電子部品が劣化、破損し使用できなくなる。[Prior Art] Devices and detectors that use light to measure properties such as temperature, moisture, and thickness of objects to be measured are sometimes used in high-temperature, high-humidity environments of 80° C. or higher. If used in a high temperature environment, the infrared detection element and electronic components inside the detector will deteriorate and be damaged, making it unusable.
このため、従来は、検出器を水冷用ケースに収
納し、流水を検出器とケースとの間に流し、検出
器の加熱を防ぐ方法を用いていた。 For this reason, conventional methods have been used in which the detector is housed in a water-cooled case and running water is passed between the detector and the case to prevent the detector from heating.
［発明が解決しようとする問題点］
しかしながら、水冷用ケースを用いた場合は、
冷却効果はあるが、外部環境が高温多湿であるの
でケース自体の温度が外部環境の温度より低く、
そのケース表面に結露を生じ、紙などの測定物体
にその水滴が落下し、しみや穴を生じ不良品原因
となる。また、検出器を、測定物体の幅方向に走
行して使用する場合、冷却水を用いると、冷却水
を検出器へ供給する途中の配管部で結露を生じた
り、配管（ホース）が万一破損した場合、多量の
水が測定物体に散布し、製品を駄目にしてしまう
問題点がある。[Problems to be solved by the invention] However, when using a water cooling case,
Although it has a cooling effect, the external environment is hot and humid, so the temperature of the case itself is lower than the external environment.
Condensation forms on the surface of the case, and the water droplets fall onto the measuring object such as paper, causing stains and holes and resulting in defective products. In addition, if the detector is used while running in the width direction of the object to be measured, if cooling water is used, condensation may occur in the piping section that supplies the cooling water to the detector, or if the piping (hose) If it is damaged, a large amount of water will be sprayed onto the measuring object, resulting in the product being damaged.
この発明の目的は、以上の点に鑑み、より効果
的に検出器を冷却し、製品を破損するおそれがな
く、常に安定した測定を可能とした光学的測定装
置を提供することである。 In view of the above points, it is an object of the present invention to provide an optical measurement device that cools a detector more effectively, eliminates the risk of damaging the product, and enables stable measurements at all times.
［問題点を解決するための手段］
この発明は、光を用いて測定物体の性状を測定
する検出器を第１のケースに収納し、この第１の
ケースをさらに第２のケースに収納し、この第１
のケースに冷却器から冷却エアを供給するととも
に制御手段により第１のケース内の温度を検出
し、冷却エアの制御を行い、常に第１のケース内
の温度を一定とするようにした光学的測定装置で
ある。[Means for Solving the Problems] The present invention includes a method in which a detector for measuring properties of a measurement object using light is housed in a first case, and this first case is further housed in a second case. , this first
An optical system that supplies cooling air from a cooler to the case, detects the temperature inside the first case by a control means, controls the cooling air, and keeps the temperature inside the first case constant at all times. It is a measuring device.
［実施例］
第１図は、この発明の一実施例を示す構成説明
図、第２図は、その測定状態の説明図である。[Example] FIG. 1 is an explanatory diagram of a configuration showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram of its measurement state.
第２図で示すように、たとえば、検出器を含む
光学的測定装置１は、適当な懸垂手段２で走行装
置３に支持され、測定物体４の幅方向を往復運動
するようになつており、光を測定物体４に投光
し、その反射光から測定物体４の性状を測定して
いる。 As shown in FIG. 2, for example, an optical measuring device 1 including a detector is supported on a traveling device 3 by suitable suspension means 2, and is configured to reciprocate in the width direction of a measuring object 4. Light is projected onto the measurement object 4, and the properties of the measurement object 4 are measured from the reflected light.
そして、光学的測定装置１は、第１図で示すよ
うに構成されている。図において、５は、その下
部のフード５０より測定物体に光を投授光してそ
の性状を測定する検出器、６は、検出器５を内部
に収納し、その内側に断熱材６０が設けられた第
１のケース、７は、中の第１のケース６を内部に
収納する外の第２のケースである。第２のケース
７内には、外部より乾燥エアＡが供給され、この
乾燥エアＡは、手動弁８１，８２，８３により三
方に分岐し、手動弁８１よりのエアは電磁弁９を
介して冷却部１０へ、手動弁８２よりのエアA1
は第２のケース７内に解放され、手動弁８３より
のエアA3は、第１のケース６内の検出器５に供
給される。 The optical measuring device 1 is configured as shown in FIG. In the figure, 5 is a detector that projects light onto the object to be measured from a hood 50 at the bottom to measure its properties; 6 is a detector that houses the detector 5 inside, and a heat insulating material 60 is provided inside. The first case 7 is an outer second case that houses the inner first case 6 therein. Dry air A is supplied into the second case 7 from the outside, and this dry air A is branched into three directions by manual valves 81, 82, and 83, and the air from the manual valve 81 is passed through a solenoid valve 9. Air A 1 from manual valve 82 to cooling unit 10
is released into the second case 7, and air A3 from the manual valve 83 is supplied to the detector 5 in the first case 6.
冷却器１０よりの冷却された冷却エア（冷風）
A2は第１のケース６内に供給され、検出器５の
フード５０の外周より、第２のケース７内に入
り、手動弁８２よりの乾燥エアA1とともにフー
ド５０のの外周より第２のケース７外へ排出され
る。この冷却器１０よりの冷却エアは、第１のケ
ース６内の温度を検出する検出器１１０を含む制
御手段１１により電磁弁９をオン・オフ制御する
等して第１のケース６の内部温度が一定となるよ
う制御される。つまり、所定の温度以上では電磁
弁９は開とされ、冷却エアA2は第１のケース７
内に供給され、所定の温度以下では、電磁弁９は
閉とされ冷却エアA2は第１のケース７内に供給
されない。なお、冷却器１０として、圧縮空気を
利用し超低温空気を発生するようなボルテツクス
クーラーのようなものを用いるとよく、その温風
A4は第２のケース７の外部に排出される。 Cooled air (cold air) from the cooler 10
A 2 is supplied into the first case 6 , enters the second case 7 from the outer periphery of the hood 50 of the detector 5 , and is supplied to the second case 7 from the outer periphery of the hood 50 along with dry air A 1 from the manual valve 82 . is discharged to the outside of the case 7. The cooling air from the cooler 10 is controlled to control the internal temperature of the first case 6 by controlling the solenoid valve 9 on and off by means of a control means 11 including a detector 110 that detects the temperature inside the first case 6. is controlled so that it is constant. In other words, when the temperature is above a predetermined temperature, the solenoid valve 9 is opened, and the cooling air A 2 is transferred to the first case 7.
When the temperature is below a predetermined temperature, the solenoid valve 9 is closed and the cooling air A 2 is not supplied into the first case 7 . As the cooler 10, it is preferable to use something like a vortex cooler that uses compressed air to generate ultra-low temperature air.
A 4 is discharged to the outside of the second case 7.
また、手動弁８３よりのエアA3は、検出器５
の発熱部を通過して冷却するとともに、フード５
０より測定物体方向に噴出し、塵埃などが吸入す
るのを防止するためのエアパージに用いられる。 In addition, air A 3 from the manual valve 83 is sent to the detector 5
The hood 5
It is used for air purging to prevent dust from being inhaled by ejecting air toward the object to be measured.
つまり、第２のケース７内に供給された乾燥エ
アは、冷却器１０を介して第１のケース６に冷却
エアA2として供給され、制御手段１１により第
１のケース６内の温度を一定とするようにこの冷
却エアA2の量が制御されるので、第１のケース
１内の温度は常に常温程度の一定とされ、検出器
５の自己発熱、外部加熱による温度上昇を防止で
き、安定した測定が可能となる。また、第１のケ
ース６の内外に断熱材６０を設けているので、ケ
ース内側での熱の移動が少なく、第１のケース６
内の温度をいつそう最適な温度に保つことができ
る。また、第２のケース７内に乾燥エアA1が常
に流通しており、第２のケース７が外部から加熱
されてもエアA1が熱を奪い外部へ排出するので、
第１のケース６は加熱されにくく、第１のケース
６の表面の温度は第２のケース７内の温度と等し
く、第１のケース６の表面に結露を生じにくい。
また、第２のケース７の内外の温度差も少いた
め、第２のケース７の外部表面に結露を生じにく
く、測定物体に水滴が落下することがない。 That is, the dry air supplied into the second case 7 is supplied to the first case 6 as cooling air A2 via the cooler 10, and the temperature inside the first case 6 is kept constant by the control means 11. Since the amount of cooling air A2 is controlled so that the temperature inside the first case 1 is always kept constant around room temperature, it is possible to prevent the temperature rise due to self-heating of the detector 5 and external heating. Stable measurement becomes possible. In addition, since the heat insulating material 60 is provided inside and outside the first case 6, there is less heat transfer inside the case, and the first case 6
You can keep the internal temperature at the optimum temperature. In addition, dry air A 1 is constantly circulating in the second case 7, and even if the second case 7 is heated from the outside, the air A 1 absorbs heat and discharges it to the outside.
The first case 6 is not easily heated, the temperature of the surface of the first case 6 is equal to the temperature inside the second case 7, and dew condensation is not easily formed on the surface of the first case 6.
Furthermore, since the temperature difference between the inside and outside of the second case 7 is small, dew condensation is less likely to occur on the external surface of the second case 7, and water droplets do not fall onto the measurement object.
［発明の効果］
以上述べたように、この発明は、検出器を２重
のケースに収納し、内部のケースを冷却部で冷却
して所定の測定としているので、外部環境が高
温・多湿であつても検出器は最適の動作環境とさ
れるので、常に安定した高精度の測定が可能とな
る。また、冷却器を外ケース内に収納しているの
で、冷却媒体を長い距離をひきまわす必要がな
く、途中での結露、冷却媒体の温度上昇等の不都
合が生じない。[Effects of the Invention] As described above, in this invention, the detector is housed in a double case, and the inner case is cooled by the cooling section to perform the prescribed measurement. Since the detector is kept in the optimal operating environment, stable and highly accurate measurements are always possible. Furthermore, since the cooler is housed in the outer case, there is no need to run the cooling medium over a long distance, and problems such as condensation on the way and temperature rise of the cooling medium do not occur.
第１図、第２図は、この発明の一実施例を示す
機成説明図である。
１……光学的測定装置、２……懸垂手段、３…
…走行装置、４……測定物体、５……検出器、６
……第１のケース、７……第２のケース、８１，
８２，８３……手動弁、９……電磁弁、１０……
冷却器、１１…制御手段。
1 and 2 are mechanical explanatory diagrams showing an embodiment of the present invention. 1... Optical measurement device, 2... Suspension means, 3...
...Traveling device, 4...Measurement object, 5...Detector, 6
...First case, 7...Second case, 81,
82, 83...Manual valve, 9...Solenoid valve, 10...
Cooler, 11...control means.
Claims (1)
を収納する内側に断熱材を有する第１のケース
と、この第１のケースを収納する第２のケース
と、この第２のケース内に収納され第１のケース
内に冷却エアを供給する冷却器と、第１のケース
内に温度を検出し冷却器の冷却エアの制御を行い
第１のケース内の温度を一定とするための制御手
段と、前記検出器より第１のケースおよび第１の
ケースから外方に突出し、その外周より第１のケ
ース内に供給された乾燥エアを検出器よりのエア
パージとして外へ排出するフードとを備えたこと
を特徴とする光学的測定装置。 ２ 前記第１のケースと第２のケースとの間に乾
燥エアを供給することを特徴とする特許請求の範
囲第１項記載の光学的測定装置。[Claims] 1. A first case having a heat insulating material inside that houses a detector that measures the properties of a measurement object using light, a second case that houses this first case, and a second case that houses this first case. A cooler that is housed in a second case and supplies cooling air into the first case, and a cooler that detects the temperature in the first case and controls the cooling air of the cooler to control the temperature in the first case. a control means for keeping the dry air constant; a control means for controlling a first case from the detector; An optical measuring device characterized by comprising: a hood for discharging the air to the hood; 2. The optical measuring device according to claim 1, wherein dry air is supplied between the first case and the second case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59257861A JPS61134608A (en) | 1984-12-06 | 1984-12-06 | Optical measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59257861A JPS61134608A (en) | 1984-12-06 | 1984-12-06 | Optical measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61134608A JPS61134608A (en) | 1986-06-21 |
| JPH034087B2 true JPH034087B2 (en) | 1991-01-22 |
Family
ID=17312187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59257861A Granted JPS61134608A (en) | 1984-12-06 | 1984-12-06 | Optical measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61134608A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5758302A (en) * | 1980-09-24 | 1982-04-08 | Mitsubishi Electric Corp | Helium refrigerating apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6124882Y2 (en) * | 1980-02-28 | 1986-07-26 | ||
| JPS6021730Y2 (en) * | 1980-12-08 | 1985-06-28 | 株式会社ほくさん | Low temperature constant temperature device |
-
1984
- 1984-12-06 JP JP59257861A patent/JPS61134608A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5758302A (en) * | 1980-09-24 | 1982-04-08 | Mitsubishi Electric Corp | Helium refrigerating apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61134608A (en) | 1986-06-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |