CN102506215B - 一种有关阀门电动执行器的无声三位浮点开关控制转换器 - Google Patents
一种有关阀门电动执行器的无声三位浮点开关控制转换器 Download PDFInfo
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JPS5884279A (ja) * | 1981-11-13 | 1983-05-20 | Toshiba Corp | 半導体式電動弁制御装置 |
JP3635982B2 (ja) * | 1999-04-19 | 2005-04-06 | 横河電機株式会社 | バルブポジショナ及び電空変換器 |
JP2001221201A (ja) * | 2000-02-04 | 2001-08-17 | Yokogawa Electric Corp | 電空ポジショナ |
US6999853B2 (en) * | 2002-05-03 | 2006-02-14 | Fisher Controls International Llc. | Methods and apparatus for operating and performing diagnostics in a control loop of a control valve |
CN1746547A (zh) * | 2004-09-10 | 2006-03-15 | 上海阀特流体控制阀门有限公司 | 智能总线气动调节阀 |
CN201210670Y (zh) * | 2008-06-18 | 2009-03-18 | 天津精通控制仪表技术有限公司 | 开关电路 |
CN202531959U (zh) * | 2012-01-04 | 2012-11-14 | 上海龙创自控***有限公司 | 一种有关阀门电动执行器的无声三位浮点开关控制转换器 |
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Address after: 200436, No. 1198, Wanrong Road, Shanghai, Zhabei District, 5 floor Patentee after: Shanghai Longchuang Eco-Energy Systems Co., Ltd. Address before: 200436, No. 1198, Wanrong Road, Shanghai, Zhabei District, 5 floor Patentee before: Shanghai Longchuang Automation Control System Co., Ltd. |
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Address after: 200436, No. 1198, Wanrong Road, Shanghai, Jingan District, 5 floor Patentee after: SHANGHAI SIIC-LONGCHUANG SMARTER ENERGY TECHNOLOGY CO., LTD. Address before: 200436, No. 1198, Wanrong Road, Shanghai, Zhabei District, 5 floor Patentee before: Shanghai Longchuang Eco-Energy Systems Co., Ltd. |
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Address after: 200436, No. 1198, Wanrong Road, Shanghai, Jingan District, 5 floor Patentee after: Shanghai Shangshi longchuang Intelligent Technology Co., Ltd Address before: 200436, No. 1198, Wanrong Road, Shanghai, Jingan District, 5 floor Patentee before: SHANGHAI SIIC-LONGCHUANG SMARTER ENERGY TECHNOLOGY Co.,Ltd. |