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公开(公告)号：EP2261682B1
公开(公告)日：2017-12-13
申请号：EP10075617.0
申请日：2004-10-27
CPC分类号： G01D5/24 , G01D5/20 , G01R27/02 , G01R27/14 , G01R35/005
摘要： A proximity sensor for sensing the proximity of a target comprising: an electrical component for sensing the proximity of the target, said electrical component having electrical properties that vary with the proximity of the target; an impedance component (21) having a known impedance and a first end connected to a first end of said electrical component; a switch (31) connected to switch between said first end of said impedance component (21) and a second end of said impedance component (21); a signal generator connected to said second end of said impedance component (21) for generating an electrical signal for application to the impedance component and electrical component; an analogue-to-digital converter for receiving an electrical signal and for generating a digital signal; and a processor connected to the analogue-to-digital converter for receiving a digital voltage signal and for generating a proximity signal, wherein said processor (23) is adapted to control said switch to switch (31) to connect to said first and second ends of said impedance component sequentially.
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公开(公告)号：EP2270521B1
公开(公告)日：2016-09-28
申请号：EP10075658.4
申请日：2004-10-27
CPC分类号： G01D5/24 , G01D5/20 , G01R27/02 , G01R27/14 , G01R35/005
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3.发明公开Signal measurement and processing method and apparatus 有权SIGNALMESSUNGS- UND VERARBEITUNGSVERFAHREN UND VORRICHTUNG
公开(公告)号：EP2270521A1
公开(公告)日：2011-01-05
申请号：EP10075658.4
申请日：2004-10-27
CPC分类号： G01D5/24 , G01D5/20 , G01R27/02 , G01R27/14 , G01R35/005
摘要： Apparatus for generating an output dependent upon the impedance or at least one component of the impedance of a device, the apparatus comprising: a load component (2) having a known impedance or at least one component thereof for connection in series with the device to allow for the measurement of a voltage drop across the load component (2); a generator arrangement for applying a signal having a voltage to the series connected load component and device; a measurement arrangement adapted to measure a first voltage one side of said load component (2), and one of a second voltage on the other side of said load component (2) or a difference voltage comprising the voltage difference across said load device; and a signal processing arrangement for processing the measurements to generate an output dependent upon the impedance or at least one component of the impedance of the device, wherein said processing arrangement is adapted to: determine a first parameter indicative of the complex amplitude of the first voltage on a first side of said load component connected to said device, and a second parameter indicative of the complex amplitude of said difference voltage or a calculated difference voltage comprising the difference between the first and second voltages; multiply each of the first and second determined parameters by the complex conjugate of the second determined parameter to generate third and fourth parameters respectively; and compare said third and fourth parameters to generate an output or compare one or more components or derivatives of the third parameter and said fourth parameter to generate said output.
摘要翻译： 用于产生取决于装置的阻抗或至少一个部件的输出的装置的装置，所述装置包括：具有已知阻抗的负载部件（2）或其至少一个部件，用于与装置串联以允许 用于测量负载组件（2）两端的电压降; 用于向串联连接的负载部件和装置施加具有电压的信号的发生器装置; 测量装置，其适于测量所述负载组件（2）的第一电压的一侧，以及所述负载组件（2）的另一侧的第二电压中的一个或包含所述负载装置两端的电压差的差电压; 以及信号处理装置，用于处理所述测量以根据所述阻抗或所述装置的阻抗的至少一个分量产生输出，其中所述处理装置适于：确定指示所述第一电压的复振幅的第一参数 在连接到所述装置的所述负载分量的第一侧上，以及指示所述差值电压的复幅度的第二参数或包括所述第一和第二电压之间的差的计算差值电压; 将第一和第二确定参数中的每一个乘以第二确定参数的复共轭，以分别产生第三和第四参数; 并比较所述第三和第四参数以产生输出或比较第三参数和所述第四参数的一个或多个分量或导数以产生所述输出。
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公开(公告)号：EP2261682A1
公开(公告)日：2010-12-15
申请号：EP10075617.0
申请日：2004-10-27
CPC分类号： G01D5/24 , G01D5/20 , G01R27/02 , G01R27/14 , G01R35/005
摘要： A proximity sensor for sensing the proximity of a target comprising: an electrical component for sensing the proximity of the target, said electrical component having electrical properties that vary with the proximity of the target; an impedance component (21) having a known impedance and a first end connected to a first end of said electrical component; a switch (31) connected to switch between said first end of said impedance component (21) and a second end of said impedance component (21); a signal generator connected to said second end of said impedance component (21) for generating an electrical signal for application to the impedance component and electrical component; an analogue-to-digital converter for receiving an electrical signal and for generating a digital signal; and a processor connected to the analogue-to-digital converter for receiving a digital voltage signal and for generating a proximity signal, wherein said processor (23) is adapted to control said switch to switch (31) to connect to said first and second ends of said impedance component sequentially.
摘要翻译： 1。一种用于感测目标的接近度的接近度传感器，包括：电子部件，用于感测目标的接近度，所述电子部件具有随目标的接近程度而变化的电特性; 具有已知阻抗的阻抗元件（21），以及连接到所述电气元件的第一端的第一端; 开关（31），其连接成在所述阻抗元件（21）的所述第一端与所述阻抗元件（21）的第二端之间切换; 连接到所述阻抗部件（21）的所述第二端的信号发生器，用于产生施加到所述阻抗部件和电部件的电信号; 一个模拟 - 数字转换器，用于接收电信号并产生数字信号; 以及连接到所述模拟 - 数字转换器的处理器，用于接收数字电压信号并且用于生成接近信号，其中所述处理器（23）适于控制所述开关以切换（31）以连接到所述第一和第二端 的所述阻抗分量的顺序。
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