CN100414305C - 用光控电子开关的自动选择功能万用表 - Google Patents
用光控电子开关的自动选择功能万用表 Download PDFInfo
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- CN100414305C CN100414305C CNB2003101121753A CN200310112175A CN100414305C CN 100414305 C CN100414305 C CN 100414305C CN B2003101121753 A CNB2003101121753 A CN B2003101121753A CN 200310112175 A CN200310112175 A CN 200310112175A CN 100414305 C CN100414305 C CN 100414305C
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- electronic switch
- measurement
- voltage
- multimeter
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Priority Applications (1)
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CNB2003101121753A CN100414305C (zh) | 2003-11-13 | 2003-11-13 | 用光控电子开关的自动选择功能万用表 |
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CNB2003101121753A CN100414305C (zh) | 2003-11-13 | 2003-11-13 | 用光控电子开关的自动选择功能万用表 |
Publications (2)
Publication Number | Publication Date |
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CN1616973A CN1616973A (zh) | 2005-05-18 |
CN100414305C true CN100414305C (zh) | 2008-08-27 |
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CNB2003101121753A Expired - Fee Related CN100414305C (zh) | 2003-11-13 | 2003-11-13 | 用光控电子开关的自动选择功能万用表 |
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Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101149399B (zh) * | 2006-09-18 | 2013-04-17 | 臧佳菁 | 自动选择测量功能的数字万用表 |
CN102128965A (zh) * | 2010-01-19 | 2011-07-20 | 鸿富锦精密工业(深圳)有限公司 | 万用表 |
CN102901864A (zh) * | 2012-10-11 | 2013-01-30 | 阳光电源股份有限公司 | 一种电压检测装置 |
CN104316741B (zh) * | 2014-07-16 | 2018-08-31 | 武汉振道世纪科技有限公司 | 广域测控智能万用表 |
CN109581022A (zh) * | 2019-01-29 | 2019-04-05 | 漳州市东方智能仪表有限公司 | 一种双阻抗输入万用表及在万用表上显示电池电量的方法 |
CN111007295A (zh) * | 2019-11-15 | 2020-04-14 | 优利德科技(中国)股份有限公司 | 一种可自动测量的万用表 |
CN113281549B (zh) * | 2021-05-28 | 2022-08-23 | 上海应用技术大学 | 一种改造型数字万用表及测量溶液pH、离子浓度的方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2118991U (zh) * | 1991-09-27 | 1992-10-14 | 李文辉 | 一种数字万用表 |
US5321351A (en) * | 1990-05-25 | 1994-06-14 | Everett Charles Technologies, Inc. | Test fixture alignment system |
CN2257020Y (zh) * | 1995-12-29 | 1997-06-25 | 臧玉伦 | 多功能数字万用表 |
US5701080A (en) * | 1995-03-10 | 1997-12-23 | Cooper Industries, Inc. | Method of improving fault current measurement accuracy on electronic reclosure control |
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2003
- 2003-11-13 CN CNB2003101121753A patent/CN100414305C/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5321351A (en) * | 1990-05-25 | 1994-06-14 | Everett Charles Technologies, Inc. | Test fixture alignment system |
CN2118991U (zh) * | 1991-09-27 | 1992-10-14 | 李文辉 | 一种数字万用表 |
US5701080A (en) * | 1995-03-10 | 1997-12-23 | Cooper Industries, Inc. | Method of improving fault current measurement accuracy on electronic reclosure control |
CN2257020Y (zh) * | 1995-12-29 | 1997-06-25 | 臧玉伦 | 多功能数字万用表 |
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CN1616973A (zh) | 2005-05-18 |
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Owner name: TAICANG DITAIKE INSTRUMENT CO., LTD. Free format text: FORMER OWNER: ZANG YULUN Effective date: 20110823 |
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Effective date of registration: 20110823 Address after: 215400 No. 188 Tonghai Road, Jiangsu, Taicang Patentee after: Taicang Ditaike Instrument Co., Ltd. Address before: 518112 Dragon Ball garden, Buji Town, Shenzhen Town, Guangdong, 26B Patentee before: Cang Yulun |
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Granted publication date: 20080827 Termination date: 20161113 |