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公开(公告)号：EP1123489B1
公开(公告)日：2004-07-21
申请号：EP99949088.1
申请日：1999-10-21
CPC分类号： G01F23/266 , G01D5/2405
摘要： The invention concerns a measuring device using an indirect permittivity measurement characterised in that it comprises two electrically conductive bodies respectively constituting a measuring probe (100) and a reference probe (200), electric supply means (300) for delivering a direct current voltage with controlled amplitude, an integrating stage (500) comprising a capacity switching system (530) and control means (400) for cyclically defining, at controlled frequency, a series of two sequences: one first sequence (T1) during which the electric supply means (300) are connected to the measuring probe (100) to apply an electric field between the measuring probe (100) and the reference probe (200) and accumulate electric loads on the measuring probe (100), then a second sequence (T2) during which the electric supply means (300) are disconnected from the measuring probe (100) and the latter is connected to the summation point of the integrating stage (500) to transfer the loads in the integrating stage (500) and obtain in output thereof a signal representing the permittivity existing between the measuring probe (100) and the reference probe (200).
摘要翻译： 本发明涉及一种使用间接介电常数测量的测量装置，其特征在于它包括分别构成测量探头（100）和参考探头（200）的两个导电体，用于传送受控的直流电压的电源装置（300） 包括容量切换系统（530）和控制装置（400）的积分级（500），用于以受控频率循环地定义一系列两个序列：一个第一序列（T1），在该第一序列期间供电装置 ）连接到测量探针（100）以在测量探针（100）和参考探针（200）之间施加电场并累积测量探针（100）上的电负载，然后是第二序列（T2） 供电装置（300）与测量探头（100）断开连接并且后者连接到积分级（500）的求和点以将负载 （500）并在其输出中获得表示存在于测量探针（100）和参考探针（200）之间的介电常数的信号。
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公开(公告)号：EP1123489A2
公开(公告)日：2001-08-16
申请号：EP99949088.1
申请日：1999-10-21
CPC分类号： G01F23/266 , G01D5/2405
摘要： The invention concerns a measuring device using an indirect permittivity measurement characterised in that it comprises two electrically conductive bodies respectively constituting a measuring probe (100) and a reference probe (200), electric supply means (300) for delivering a direct current voltage with controlled amplitude, an integrating stage (500) comprising a capacity switching system (530) and control means (400) for cyclically defining, at controlled frequency, a series of two sequences: one first sequence (T1) during which the electric supply means (300) are connected to the measuring probe (100) to apply an electric field between the measuring probe (100) and the reference probe (200) and accumulate electric loads on the measuring probe (100), then a second sequence (T2) during which the electric supply means (300) are disconnected from the measuring probe (100) and the latter is connected to the summation point of the integrating stage (500) to transfer the loads in the integrating stage (500) and obtain in output thereof a signal representing the permittivity existing between the measuring probe (100) and the reference probe (200).
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