MULTI-CHANNEL CAPACITANCE SENSING MEASUREMENT CIRCUIT
A capacitance measurement circuit (12) for determining complex electric currents in a multi-channel capacitive sensing device (10) comprises a first sensing circuit (18) for selectively connecting one of a plurality of sense electrodes to a common sense node (14) and for connecting a corresponding g...
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| creator | WENDT CHRISTOPH KONFAR ATTILA LAMESCH LAURENT FARSCH BERND URIG CHRISTIAN |
| description | A capacitance measurement circuit (12) for determining complex electric currents in a multi-channel capacitive sensing device (10) comprises a first sensing circuit (18) for selectively connecting one of a plurality of sense electrodes to a common sense node (14) and for connecting a corresponding guard electrode of the sense electrode to a common guard node (16), and at least a second sensing circuit (26). A measurement signal voltage source (42) provides an alternating measurement voltage to the common guard node (16) in a remotely controllable manner. A diagnostic signal voltage source (46) provides an alternating diagnostic voltage to the common guard node (16) in a remotely controllable manner. A current measurement circuit (52) is connected with a signal input port (56) to the common sense node (14) and with a reference input port (58) to the output port (44) of the measurement signal voltage source (42).
一种用于确定多通道电容式感测装置(10)中的复电流的电容测量电路(12)，电容测量电路(12)包括：第一感测电路(18)，第一感测电路(18)用于将多个感测电极中的一个选择性地连接到公共感测节点(1 |
| format | Patent |
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一种用于确定多通道电容式感测装置(10)中的复电流的电容测量电路(12)，电容测量电路(12)包括：第一感测电路(18)，第一感测电路(18)用于将多个感测电极中的一个选择性地连接到公共感测节点(1</description><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDD1DfUJ8dR19nD083P1UXB2DHB09gxx9HN2VQh29Qv29HNX8HV1DA4NcvV19QtRcPYMcg71DOFhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfHOfoaGxuaGhgZmJo7GxKgBAPmdJ7k</recordid><startdate>20211126</startdate><enddate>20211126</enddate><creator>WENDT CHRISTOPH</creator><creator>KONFAR ATTILA</creator><creator>LAMESCH LAURENT</creator><creator>FARSCH BERND</creator><creator>URIG CHRISTIAN</creator><scope>EVB</scope></search><sort><creationdate>20211126</creationdate><title>MULTI-CHANNEL CAPACITANCE SENSING MEASUREMENT CIRCUIT</title><author>WENDT CHRISTOPH ; KONFAR ATTILA ; LAMESCH LAURENT ; FARSCH BERND ; URIG CHRISTIAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN113711064A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2021</creationdate><topic>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>WENDT CHRISTOPH</creatorcontrib><creatorcontrib>KONFAR ATTILA</creatorcontrib><creatorcontrib>LAMESCH LAURENT</creatorcontrib><creatorcontrib>FARSCH BERND</creatorcontrib><creatorcontrib>URIG CHRISTIAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WENDT CHRISTOPH</au><au>KONFAR ATTILA</au><au>LAMESCH LAURENT</au><au>FARSCH BERND</au><au>URIG CHRISTIAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MULTI-CHANNEL CAPACITANCE SENSING MEASUREMENT CIRCUIT</title><date>2021-11-26</date><risdate>2021</risdate><abstract>A capacitance measurement circuit (12) for determining complex electric currents in a multi-channel capacitive sensing device (10) comprises a first sensing circuit (18) for selectively connecting one of a plurality of sense electrodes to a common sense node (14) and for connecting a corresponding guard electrode of the sense electrode to a common guard node (16), and at least a second sensing circuit (26). A measurement signal voltage source (42) provides an alternating measurement voltage to the common guard node (16) in a remotely controllable manner. A diagnostic signal voltage source (46) provides an alternating diagnostic voltage to the common guard node (16) in a remotely controllable manner. A current measurement circuit (52) is connected with a signal input port (56) to the common sense node (14) and with a reference input port (58) to the output port (44) of the measurement signal voltage source (42).
一种用于确定多通道电容式感测装置(10)中的复电流的电容测量电路(12)，电容测量电路(12)包括：第一感测电路(18)，第一感测电路(18)用于将多个感测电极中的一个选择性地连接到公共感测节点(1</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
| title | MULTI-CHANNEL CAPACITANCE SENSING MEASUREMENT CIRCUIT |
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