JPS63111248U - - Google Patents
Info
- Publication number
- JPS63111248U JPS63111248U JP404687U JP404687U JPS63111248U JP S63111248 U JPS63111248 U JP S63111248U JP 404687 U JP404687 U JP 404687U JP 404687 U JP404687 U JP 404687U JP S63111248 U JPS63111248 U JP S63111248U
- Authority
- JP
- Japan
- Prior art keywords
- mold
- eddy current
- current sensor
- electromagnetic stirring
- continuous casting
- 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
- 238000003756 stirring Methods 0.000 claims description 4
- 238000009749 continuous casting Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Continuous Casting (AREA)
Description
第１図は本考案の渦流式連続鋳造鋳型内湯面計
の実施例のブロツク回路図、第２図イは本考案に
よる場合の湯面レベル記録図、第２図ロは比較の
ための従来技術による場合の湯面レベル記録図、
第３図は従来技術のブロツク回路図である。
１……鋳型、２……被測定湯面、２……パウダ
、３……ボビン、４……１次コイル、５，６……
２次コイル、７……検出コイル部、８……発振器
、９……饋還増幅器、１０……差動増幅器、１１
……鋳型振動除去フイルター、１２……正饋還量
調整器、１３……加算器、１４……振幅検波器、
１５……電磁攪拌装置、１６……電磁攪拌除去フ
イルター、ｈ……湯面レベル、渦流センサ間相対
距離。
Fig. 1 is a block circuit diagram of an embodiment of the vortex type continuous casting mold level gauge of the present invention, Fig. 2 A is a level recording diagram of the liquid level according to the present invention, and Fig. 2 B is a conventional technique for comparison. Hot water level record chart according to
FIG. 3 is a block circuit diagram of the prior art. 1...mold, 2...metal surface to be measured, 2...powder, 3...bobbin, 4...primary coil, 5, 6...
Secondary coil, 7...detection coil section, 8...oscillator, 9...feedback amplifier, 10...differential amplifier, 11
... Mold vibration removal filter, 12 ... Positive feedback amount adjuster, 13 ... Adder, 14 ... Amplitude detector,
15... Electromagnetic stirring device, 16... Electromagnetic stirring removal filter, h... Molten water level, relative distance between eddy current sensors.
Claims (1)
交流電流が印加される検出コイル部からなる渦流
センサーを備え、センサのインピーダンスの変化
を湯面と渦流センサーとの距離の関数としてとら
える連続鋳造設備の鋳型内湯面計において、渦流
センサーのノイズ源となる電磁攪拌の影響を除去
するため、電磁攪拌装置に印加する交流電流の基
本波および基本波から発生する高調波分を渦流セ
ンサの出力値から除去するフイルタを備えたこと
を特徴とする渦流式連続鋳造鋳型内湯面計。 Continuous casting equipment is equipped with an eddy current sensor consisting of a detection coil section that is placed opposite to the molten metal surface to be measured in the mold and to which an alternating current is applied, and detects changes in sensor impedance as a function of the distance between the molten metal surface and the eddy current sensor. In order to eliminate the influence of electromagnetic stirring, which is a noise source for the eddy current sensor, in the mold level gauge of equipment, the fundamental wave of the alternating current applied to the electromagnetic stirring device and the harmonics generated from the fundamental wave are calculated as the output value of the eddy current sensor. A vortex-type continuous casting mold in-mold level gauge characterized by being equipped with a filter that removes water from the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP404687U JPS63111248U (en) | 1987-01-13 | 1987-01-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP404687U JPS63111248U (en) | 1987-01-13 | 1987-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63111248U true JPS63111248U (en) | 1988-07-16 |
Family
ID=30784358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP404687U Pending JPS63111248U (en) | 1987-01-13 | 1987-01-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63111248U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999029453A1 (en) * | 1997-12-08 | 1999-06-17 | Nippon Steel Corporation | Continuous casting apparatus using a molten metal level gauge |
| JP2002333361A (en) * | 2001-05-07 | 2002-11-22 | Sefa Technology Kk | Method for measuring amount of sample in vessel and apparatus therefor |
| WO2013114914A1 (en) * | 2012-01-31 | 2013-08-08 | 品川リフラクトリーズ株式会社 | Inside-mold molten surface gauge for continuous casting, and molten surface control method using same |
| WO2013114915A1 (en) * | 2012-01-31 | 2013-08-08 | 品川リフラクトリーズ株式会社 | Eddy current mold level sensor |
| WO2016017028A1 (en) * | 2014-08-01 | 2016-02-04 | 株式会社ニレコ | Eddy current-type mold level measurement device and mold level measurement method |
| US9816851B2 (en) | 2014-08-01 | 2017-11-14 | Nireco Corporation | Eddy current mold level measuring device and mold level measuring method |
| JP2020157351A (en) * | 2019-03-27 | 2020-10-01 | 住友電気工業株式会社 | Method for producing casting material |
-
1987
- 1987-01-13 JP JP404687U patent/JPS63111248U/ja active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999029453A1 (en) * | 1997-12-08 | 1999-06-17 | Nippon Steel Corporation | Continuous casting apparatus using a molten metal level gauge |
| JP2002333361A (en) * | 2001-05-07 | 2002-11-22 | Sefa Technology Kk | Method for measuring amount of sample in vessel and apparatus therefor |
| WO2013114914A1 (en) * | 2012-01-31 | 2013-08-08 | 品川リフラクトリーズ株式会社 | Inside-mold molten surface gauge for continuous casting, and molten surface control method using same |
| WO2013114915A1 (en) * | 2012-01-31 | 2013-08-08 | 品川リフラクトリーズ株式会社 | Eddy current mold level sensor |
| WO2016017028A1 (en) * | 2014-08-01 | 2016-02-04 | 株式会社ニレコ | Eddy current-type mold level measurement device and mold level measurement method |
| US9816851B2 (en) | 2014-08-01 | 2017-11-14 | Nireco Corporation | Eddy current mold level measuring device and mold level measuring method |
| JP2020157351A (en) * | 2019-03-27 | 2020-10-01 | 住友電気工業株式会社 | Method for producing casting material |
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