JPS6212283Y2 - - Google Patents
Info
- Publication number
- JPS6212283Y2 JPS6212283Y2 JP9342981U JP9342981U JPS6212283Y2 JP S6212283 Y2 JPS6212283 Y2 JP S6212283Y2 JP 9342981 U JP9342981 U JP 9342981U JP 9342981 U JP9342981 U JP 9342981U JP S6212283 Y2 JPS6212283 Y2 JP S6212283Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- sheet
- head
- paper
- high voltage
- 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
Links
- 238000005259 measurement Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000006059 cover glass Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Optical Measuring Cells (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
【考案の詳細な説明】
本考案はシート状の物体の特性を測定する装置
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for measuring properties of a sheet-like object.
シート状物体の特性を測定する装置として、抄
造紙に含まれる、又は、吸着する水分を連続して
測定する多量散乱・透過方式水分計がある（特願
昭54−63362号）。 As a device for measuring the properties of sheet-like objects, there is a large amount scattering/transmission type moisture meter that continuously measures the moisture contained in or adsorbed in papermaking (Japanese Patent Application No. 63362/1982).
上記水分計は、上ヘツドと下ヘツドを対向配設
して照射部と受光部を構成すると共に、この上・
下ヘツドで形成される間隙にシート状抄造紙を走
行させ、照射部から抄造紙に光を照射し、抄造紙
と相互作用をもつた光を受光部で検出し、所定の
演算をして抄造紙の水分を測定するようになつて
いる。 The above-mentioned moisture meter has an upper head and a lower head disposed facing each other to constitute an irradiating part and a light receiving part.
A sheet of paper is run through the gap formed by the lower head, the irradiation part irradiates the paper with light, the light that interacts with the paper is detected by the light receiving part, and predetermined calculations are performed to form the paper. It is designed to measure the moisture content of paper.
このような水分計において、上・下ヘツドの対
向面に紙粉が付着すると誤差となるので、従来
は、一定時間毎に、対向面を掃除したり、自動校
正装置を具備し、校正動作をかけながら付着量を
演算で補償する方式がとられていた。 In such moisture meters, if paper dust adheres to the opposing surfaces of the upper and lower heads, it will cause an error, so in the past, the opposing surfaces were cleaned at regular intervals or an automatic calibration device was installed to perform calibration operations. A method was used in which the amount of adhesion was compensated for by calculation while applying the amount.
しかし、前記付着量は時々刻々変化（増加）す
るので、従来の方式では、付着量による影響を完
全に除去することができなかつた。 However, since the amount of adhesion changes (increases) from time to time, the conventional method has not been able to completely eliminate the influence of the amount of adhesion.
本考案はかかる点に鑑みてなされたものであ
り、その目的は、上・下ヘツドの対向面に紙粉等
が付着しないようにするために、高電圧が印加さ
れた対向面を具備する測定装置を提供するにあ
る。 The present invention was devised in view of this point, and its purpose is to provide a measuring device with opposing surfaces to which a high voltage is applied in order to prevent paper dust, etc. from adhering to the opposing surfaces of the upper and lower heads. We are in the process of providing equipment.
以下、図面を参照し本考案について詳しく説明
する。 Hereinafter, the present invention will be explained in detail with reference to the drawings.
図は、本考案の一実施例による水分計の構成説
明図である。図において、検出ヘツド１は、照射
窓２及び３と、反射材４、カバーガラス５及び
SnOの透明導体物体６から成る三重構造の散乱面
７と、円板状の板面に２個の貫通穴を設け、一方
の穴に基準光用フイルタ８を、他方の穴に測定光
用フイルタ９を埋設支承して、連続した定速回転
をする回転セクタ１０と、円板状の板面に複数の
貫通穴１１，１２…等を設け、その一部に標準サ
ンプル１３，１４…等を埋設支承して、外部かな
与えられる制御信号によつて、定期的、又は、必
要に応じて、定められた角度で回転するサンプル
ホルダ１５と、照射窓２及び３を通る平行光線を
作成するランプ１６、レンズ１７、ミラー１８及
びレンズ１９とを有する。一方、下ヘツド２０
は、入射窓２１と、反射材２２、カバーガラス２
３及びSnOの透明導体物体２４から成る三重構造
の散乱面２５と、入射窓２１に入射する光を収束
するレンズ２６と、収束された入射光を検出する
センサ２７とを有する。そして、上・下ヘツドの
透明導体物体６及び２４には、直流の高電圧源２
８の出力電圧が印加され、数百Ｖの電位を保持す
るようになつている。 The figure is an explanatory diagram of the configuration of a moisture meter according to an embodiment of the present invention. In the figure, a detection head 1 includes irradiation windows 2 and 3, a reflector 4, a cover glass 5 and
A triple structure scattering surface 7 consisting of a SnO transparent conductor object 6 and two through holes are provided in the disk-shaped plate surface, and a reference light filter 8 is placed in one hole and a measurement light filter 8 is placed in the other hole. A rotary sector 10 is provided with a rotary sector 10 which continuously rotates at a constant speed by embedding a rotor 9, and a plurality of through holes 11, 12, etc. are provided in the disc-shaped plate surface, and standard samples 13, 14, etc. are placed in some of the through holes 11, 12, etc. A sample holder 15 which is supported in a buried manner and rotates at a predetermined angle periodically or as required by a control signal given from the outside, and a lamp which creates a parallel beam of light passing through the irradiation windows 2 and 3. 16, a lens 17, a mirror 18, and a lens 19. On the other hand, the lower head 20
includes an entrance window 21, a reflective material 22, and a cover glass 2.
It has a scattering surface 25 with a triple structure consisting of a transparent conductive object 24 of 3 and SnO, a lens 26 that converges the light incident on the entrance window 21, and a sensor 27 that detects the converged incident light. A direct current high voltage source 2 is connected to the transparent conductive objects 6 and 24 of the upper and lower heads.
An output voltage of 8 is applied, and a potential of several hundred volts is maintained.
上・下ヘツド１と２０は、シート状の紙２９を
挾んで対向状態にあり、ランプ１６、レンズ１
７、照射窓２、散乱面７及び２５、入射窓２１、
レンズ２６並びにセンサ２７で多重散乱光学系
を、又、ランプ１６、ミラー１８、レンズ１９、
照射窓３、入射窓２１及びセンサ２７で透過光学
系を夫々構成している。 The upper and lower heads 1 and 20 face each other with a sheet of paper 29 in between, and a lamp 16 and a lens 1
7, irradiation window 2, scattering surfaces 7 and 25, entrance window 21,
The lens 26 and sensor 27 form a multiple scattering optical system, and the lamp 16, mirror 18, lens 19,
The irradiation window 3, the entrance window 21, and the sensor 27 constitute a transmission optical system.
上記水分計において、通常の測定状態にあつて
は、貫通穴１１は照射窓２の上に、貫通穴１２は
照射窓３の上に夫々位置し、照射窓２及び３か
ら、回転セクタ１０による断続光を紙２９に照射
され、紙２９と相互作用をもつた光、即ち、多重
散乱光学系における測定光Mn及び基準光Rn並び
に透過光学系における測定光Ｍt及び基準光Ｒtか
ら成る時系列信号がセンサ２７で検出され、次段
の演算・制御部（図示せず）の入力となる。そし
て、演算・制御部は所定の演算をして紙の水分に
対応する信号を出力する。又、校正状態にあつて
は、上・下ヘツド１と２０の間に紙２９がない状
態でサンプルホルダ１５に間欠的な回転を与え、
照射窓２及び３の上に、標準サンプル、即ち、零
サンプル、スパンサンプル、チエツクサンプル等
を順次配設する。この配設動作によつて、各サン
プルによる測定光Mn及びＭt並びに基準光Rn及び
Ｒtに対応する信号がセンサ２７で検出される。
演算・制御部はこの信号に基づき校正動作を行
う。 In the above-mentioned moisture meter, under normal measurement conditions, the through hole 11 is located above the irradiation window 2, and the through hole 12 is located above the irradiation window 3. When the paper 29 is irradiated with intermittent light and the light interacts with the paper 29, that is, the measurement light Mn and the reference light Rn in the multiple scattering optical system, and the measurement light M t and the reference light R t in the transmission optical system. The series signal is detected by the sensor 27 and becomes an input to the next stage calculation/control unit (not shown). Then, the calculation/control unit performs a predetermined calculation and outputs a signal corresponding to the moisture content of the paper. In addition, in the calibration state, the sample holder 15 is rotated intermittently with no paper 29 between the upper and lower heads 1 and 20,
On the irradiation windows 2 and 3, standard samples, ie, a zero sample, a span sample, a check sample, etc. are arranged in order. By this arrangement operation, the sensor 27 detects signals corresponding to the measurement lights Mn and Mt and the reference lights Rn and Rt from each sample.
The calculation/control unit performs a calibration operation based on this signal.
一方、導体物体６及び２４には高圧電源２８か
ら数百Ｖの出力電圧が印加されているので、散乱
面７及び２５は高電圧状態になつている。紙２９
はこれら散乱面で形成されるギヤツプを約100〜
1200m／minで走行する時、ばらまかれる紙粉が
散乱面７及び２５の印加電圧と同電位に帯電され
る。このため、紙粉は散乱面７及び２５に対して
反発し、散乱面７及び２５に付着せず、紙２９と
共に下流方向に流れ去る。 On the other hand, since an output voltage of several hundred volts is applied to the conductive objects 6 and 24 from the high voltage power supply 28, the scattering surfaces 7 and 25 are in a high voltage state. paper 29
The gap formed by these scattering surfaces is about 100 ~
When traveling at 1200 m/min, the scattered paper powder is charged to the same potential as the voltage applied to the scattering surfaces 7 and 25. Therefore, the paper dust is repelled by the scattering surfaces 7 and 25, does not adhere to the scattering surfaces 7 and 25, and flows away together with the paper 29 in the downstream direction.
本考案者らの実験によれば、上記構成の水分計
において、紙粉同様にカーボン粉も効果があるこ
とが確認されている。 According to experiments conducted by the present inventors, it has been confirmed that carbon powder is as effective as paper powder in the moisture meter having the above configuration.
なお、上記実施例は、抄造紙の水分計について
説明したが、本考案はこれに限定するものではな
く、フイルムの厚さ測定装置等のシート状の物体
の物理量測定装置を含むものである。 Although the above embodiments have been described with respect to a moisture meter for paper making, the present invention is not limited thereto, and includes devices for measuring physical quantities of sheet-like objects, such as a device for measuring film thickness.
以上詳しく説明したように、本考案による測定
装置によれば、上・下ヘツドは高電圧が印加され
た対向面を有するので、対向面に紙粉等が付着せ
ず、保守作業が省け、かつ、精度の良い測定信号
を得ることができる。 As explained in detail above, according to the measuring device according to the present invention, the upper and lower heads have opposing surfaces to which high voltage is applied, so paper dust etc. do not adhere to the opposing surfaces, and maintenance work can be omitted. , it is possible to obtain a highly accurate measurement signal.
図は、本考案の一実施例による水分計の構成説
明図である。
１……上ヘツド、２０……下ヘツド、４及び２
２……反射機、５及び２３……カバーガラス、７
及ぼ２５……透明導体物体、２８……高電圧源、
２９……抄造紙。
The figure is an explanatory diagram of the configuration of a moisture meter according to an embodiment of the present invention. 1...Top head, 20...Bottom head, 4 and 2
2...Reflector, 5 and 23...Cover glass, 7
and 25...transparent conductor object, 28...high voltage source,
29... Paper making paper.
Claims (1)
の光学系および透過形の光学系を構成すると共
に、該上・下ヘツドで形成される間隙にシート状
の物体を流し、該物体中の水分によつて吸収され
る波長領域の光である測定光と吸収されない波長
領域の光である基準光とを前記２つの光学系の照
射部から前記物体に照射し、該物体と相互作用を
もつた前記測定光及び基準光を前記２つの光学系
に共通の受光部で検出し、該測定光及び基準光に
夫々対応して前記受光部から出力される測定信号
および基準信号を用いる演算によつて前記物体に
含有されている水分量を測定するシート状物体の
特性測定装置において、 前記照射部から前記物体に照射される光を透過
する導電性部材でなり前記上ヘツドおよび下ヘツ
ドの対向面を夫々被覆する第１および第２の透明
物質導体と、これら透明物質導体に高電圧を印加
する高電圧源とを具備し、前記間隙内で前記シー
ト状物質から放出される紙粉を電気的反発力で除
去することを特徴とするシート状物体の特性測定
装置。[Claims for Utility Model Registration] An upper head and a lower head are disposed facing each other to constitute a multiple scattering type optical system and a transmission type optical system, and a sheet-like object is placed in the gap formed by the upper and lower heads. and irradiate the object from the irradiation parts of the two optical systems with measurement light that is light in a wavelength range that is absorbed by moisture in the object and reference light that is light in a wavelength range that is not absorbed; The measurement light and reference light that interact with the object are detected by a light receiving section common to the two optical systems, and measurement signals and In a characteristic measuring device for a sheet-like object that measures the amount of water contained in the object by calculation using a reference signal, the above-mentioned conductive member is made of a conductive member that transmits light irradiated onto the object from the irradiation section. first and second transparent material conductors covering opposing surfaces of the head and the lower head, respectively, and a high voltage source applying a high voltage to these transparent material conductors, and emitting light from the sheet-like material within the gap. A device for measuring properties of sheet-like objects, which is characterized by removing paper dust that is generated by electrical repulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9342981U JPS6212283Y2 (en) | 1981-06-24 | 1981-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9342981U JPS6212283Y2 (en) | 1981-06-24 | 1981-06-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57205054U JPS57205054U (en) | 1982-12-27 |
| JPS6212283Y2 true JPS6212283Y2 (en) | 1987-03-28 |
Family
ID=29888391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9342981U Expired JPS6212283Y2 (en) | 1981-06-24 | 1981-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6212283Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS514793A (en) * | 1974-06-28 | 1976-01-16 | Kitai Tetsukosho Kk | Senpakuno suishinkihokoseigyosochi |
-
1981
- 1981-06-24 JP JP9342981U patent/JPS6212283Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS514793A (en) * | 1974-06-28 | 1976-01-16 | Kitai Tetsukosho Kk | Senpakuno suishinkihokoseigyosochi |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57205054U (en) | 1982-12-27 |
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