![用于确定和/或监控介质的过程变量的方法以及相应装置](/CN/2008/8/1/images/200880005666.jpg)
基本信息:
- 专利标题: 用于确定和/或监控介质的过程变量的方法以及相应装置
- 专利标题(英):Method for determining and/or monitoring a process variable of a medium, and corresponding apparatus
- 申请号:CN200880005666.9 申请日:2008-02-13
- 公开(公告)号:CN101971002A 公开(公告)日:2011-02-09
- 发明人: 萨沙·德安热利科 , 佛朗哥·费拉多 , 于尔根·迈尔 , 亚历山大·米勒 , 沃尔特·龙巴赫
- 申请人: 恩德莱斯和豪瑟尔两合公司
- 申请人地址: 德国毛尔堡
- 专利权人: 恩德莱斯和豪瑟尔两合公司
- 当前专利权人: 恩德莱斯和豪瑟尔两合公司
- 当前专利权人地址: 德国毛尔堡
- 代理机构: 中原信达知识产权代理有限责任公司
- 代理人: 邹璐; 樊卫民
- 优先权: 102007008669.7 2007.02.20 DE
- 国际申请: PCT/EP2008/051703 2008.02.13
- 国际公布: WO2008/101843 DE 2008.08.28
- 进入国家日期: 2009-08-20
- 主分类号: G01N9/00
- IPC分类号: G01N9/00 ; G01N11/16
The invention relates to a method for determining and/or monitoring a process variable of a medium, wherein an excitation signal (SA) is applied to a unit (1) which is capable of mechanical oscillation, wherein a reception signal (SE) originating from the unit (1) which is capable of mechanical oscillation is received, wherein the excitation signal (SA) is generated in such a manner that a phase difference between the excitation signal (SA) and the reception signal (SE) is equal to a predefinable phase value. The invention provides for a criterion for assessing the determination of the phase difference between the excitation signal (SA) and the reception signal (SE) or a signal that depends on the excitation signal (SA) or on the reception signal (SE) to be predefined, for the setting of the phase difference to be regulated in the case of the criterion for assessing the determination of the phase difference being satisfied, and for the setting of the phase difference to be controlled in the alternative case. The invention also relates to a corresponding apparatus.
公开/授权文献:
- CN101971002B 用于确定和/或监控介质的过程变量的方法以及相应装置 公开/授权日:2013-05-29
IPC结构图谱:
G | 物理 |
--G01 | 测量;测试 |
----G01N | 借助于测定材料的化学或物理性质来测试或分析材料 |
------G01N9/00 | 测试材料的密度或比重;通过测定密度或比重以分析材料 |