JPS5886533U - Eddy current mold water level gauge - Google Patents
Eddy current mold water level gaugeInfo
- Publication number
- JPS5886533U JPS5886533U JP18170081U JP18170081U JPS5886533U JP S5886533 U JPS5886533 U JP S5886533U JP 18170081 U JP18170081 U JP 18170081U JP 18170081 U JP18170081 U JP 18170081U JP S5886533 U JPS5886533 U JP S5886533U
- Authority
- JP
- Japan
- Prior art keywords
- mold
- water level
- level gauge
- molten metal
- eddy current
- 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.)
- Pending
Links
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Continuous Casting (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は一般的な渦流式モールド湯面計による連続鋳造
機のモールド内湯面レベル計測システムの構成を示す説
明図、第２図は低周波磁界の影響を示す湯面計の入出力
電圧波形図、第３図は低周波磁界が無いときの湯面計の
入出力電圧波形図、第４図は低周波磁界の有無による測
定精度の変化を示す湯面計の出力電圧特性線図、第５図
はこの考案の基本的な構成を示すブロック図、第６図は
バイパスフィルタの入出力電圧波形図、第７図はこの考
案の湯面計の出力特性線図、第８図はこの考案品別の実
施例を示すブロック図である。
２・・・検出ヘッド、７・・・渦流式モールド湯面計本
体、１１・・・検出コイル、１２．１６・・・バイパス
フィルタ、１３・・・発振器、１４・・・帰還増巾器、
１５・・・直線検波器。Figure 1 is an explanatory diagram showing the configuration of a system for measuring the level of mold in a continuous casting machine using a general eddy current mold level gauge. Figure 2 is an input/output voltage waveform of the level gauge showing the influence of a low-frequency magnetic field. Figure 3 is an input/output voltage waveform diagram of the water level gauge when there is no low-frequency magnetic field, Figure 4 is an output voltage characteristic line diagram of the water level gauge showing changes in measurement accuracy depending on the presence or absence of a low-frequency magnetic field. Figure 5 is a block diagram showing the basic configuration of this invention, Figure 6 is an input/output voltage waveform diagram of the bypass filter, Figure 7 is an output characteristic diagram of the water level gauge of this invention, and Figure 8 is a diagram of this invention. It is a block diagram showing an example by item. 2... Detection head, 7... Eddy current mold water level gauge body, 11... Detection coil, 12.16... Bypass filter, 13... Oscillator, 14... Feedback amplifier,
15... Linear detector.
Claims (1)
前記モールド内湯面上方に固定配置された検出コイルを
高周波電流で励振し、発生した交番磁界をモールド内の
溶融金属と鎮交せしめて湯面直下に生じる渦電流に対応
した検出コイルのインピーダンス変化を電圧信号として
取り出すことにより湯面レベルを測定するものにおいて
、前記モールドの電磁攪拌による低周波ノイズを除去す
るフィルタを備えたことを特徴とする渦流式モールド湯
面計。In order to measure the level of molten metal in the mold of a continuous casting machine, a detection coil fixedly placed above the molten metal level in the mold is excited with a high frequency current, and the generated alternating magnetic field is made to intersect with the molten metal in the mold. The hot water level is measured by extracting impedance changes of a detection coil corresponding to eddy currents generated directly below the surface as a voltage signal, characterized by comprising a filter for removing low frequency noise caused by electromagnetic stirring of the mold. A vortex type molded water level gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18170081U JPS5886533U (en) | 1981-12-08 | 1981-12-08 | Eddy current mold water level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18170081U JPS5886533U (en) | 1981-12-08 | 1981-12-08 | Eddy current mold water level gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5886533U true JPS5886533U (en) | 1983-06-11 |
Family
ID=29979411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18170081U Pending JPS5886533U (en) | 1981-12-08 | 1981-12-08 | Eddy current mold water level gauge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5886533U (en) |
-
1981
- 1981-12-08 JP JP18170081U patent/JPS5886533U/en active Pending
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