CN102564530B - 一种智能4~20mA两线制光电物位变送器 - Google Patents
一种智能4~20mA两线制光电物位变送器 Download PDFInfo
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- CN102564530B CN102564530B CN201110411608.XA CN201110411608A CN102564530B CN 102564530 B CN102564530 B CN 102564530B CN 201110411608 A CN201110411608 A CN 201110411608A CN 102564530 B CN102564530 B CN 102564530B
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CN107219389B (zh) * | 2017-05-27 | 2019-12-03 | 重庆编福科技有限公司 | 一种基于达林顿光耦自环补偿窃电式变送器 |
CN107941294A (zh) * | 2017-11-21 | 2018-04-20 | 江苏斯尔邦石化有限公司 | 一种计量仪表累积数据同步采集系统 |
CN108765916A (zh) * | 2018-04-08 | 2018-11-06 | 南京达凯电力自动化设备有限公司 | 一种信号载波加密状态可控的传感器 |
CN109856534A (zh) * | 2018-12-18 | 2019-06-07 | 南京南自电力仪表有限公司 | 一种基于Hart通信技术的发电机电量变送器 |
Citations (6)
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CN2634442Y (zh) * | 2003-07-26 | 2004-08-18 | 义乌市仪表有限公司 | 智能涡轮流量计 |
GB2462907A (en) * | 2008-08-26 | 2010-03-03 | Avago Technologies Fiber Ip | Signal transmission system using a dual-purpose pin |
CN201514244U (zh) * | 2009-09-23 | 2010-06-23 | 伊玛精密电子(苏州)有限公司 | Hart协议的热扩散原理流量传感器 |
CN201594004U (zh) * | 2010-01-25 | 2010-09-29 | 北京百氏源环保技术有限公司 | 一种泥位检测仪 |
CN102135769A (zh) * | 2010-12-28 | 2011-07-27 | 重庆恩菲斯软件有限公司 | 多功能数据采集系统及控制方法 |
CN102162747A (zh) * | 2010-12-26 | 2011-08-24 | 河海大学常州校区 | 一种光电传感器信号处理电路 |
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CN202599478U (zh) * | 2011-12-12 | 2012-12-12 | 河北珠峰仪器仪表设备有限公司 | 一种智能4~20mA两线制光电物位变送装置 |
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN2634442Y (zh) * | 2003-07-26 | 2004-08-18 | 义乌市仪表有限公司 | 智能涡轮流量计 |
GB2462907A (en) * | 2008-08-26 | 2010-03-03 | Avago Technologies Fiber Ip | Signal transmission system using a dual-purpose pin |
CN201514244U (zh) * | 2009-09-23 | 2010-06-23 | 伊玛精密电子(苏州)有限公司 | Hart协议的热扩散原理流量传感器 |
CN201594004U (zh) * | 2010-01-25 | 2010-09-29 | 北京百氏源环保技术有限公司 | 一种泥位检测仪 |
CN102162747A (zh) * | 2010-12-26 | 2011-08-24 | 河海大学常州校区 | 一种光电传感器信号处理电路 |
CN102135769A (zh) * | 2010-12-28 | 2011-07-27 | 重庆恩菲斯软件有限公司 | 多功能数据采集系统及控制方法 |
Non-Patent Citations (1)
Title |
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HART总线在智能雷达液位仪中的实现;高荣;《中国优秀硕士学位论文全文数据库 信息科技辑》;20090415;正文第7、27、29、30、38页 * |
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