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公开(公告)号：US10412784B2
公开(公告)日：2019-09-10
申请号：US15738679
申请日：2016-05-24
摘要： A field device for use in hygienic applications in process and automation technology is disclosed, including a sensor element, an electrical circuit, a heating element, a housing, having an outside and an inside in which the sensor element, the electrical circuit and the heating element are arranged and mounted, and an external energy supply unit, wherein the field device possesses two connection pins, to which the sensor element and the electrical circuit are connected and enabling an electrical connection with the external electrical current supply, whereby forming a first electrical current loop, and wherein a second electrical current loop is arranged such that the heating element is in electrical contact with the external energy unit via one of the two connection pins and a third connection pin, whereby the second electrical current loop forms a parallel circuit with the first electrical current loop.
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公开(公告)号：US20170089794A1
公开(公告)日：2017-03-30
申请号：US15311575
申请日：2015-04-20
发明人： Raphael Schonhardt , Michael Lais
CPC分类号： G01L19/0654 , G01L19/144
摘要： The invention relates to a measuring transducer (1) for metrological registering of a pressure to be measured (p) as relative pressure (pR) referenced to a reference pressure (pref) reigning in the environment of the measuring transducer (1), comprising a housing (2), a relative pressure sensor (3) arranged in the housing (2), a pressure supply, via which the pressure to be measured (p) is fed to the relative pressure sensor (3), and a reference pressure supply (5), via which the reference pressure (pref) is fed to the relative pressure sensor (3), wherein an entrance of and to the reference pressure supply (5) communicates with an opening in a housing outer wall (2a), on whose exterior the reference pressure (pref) acts, characterized in that a pressure equalizing element (6) is applied in the entrance of the reference pressure supply (5), and the pressure equalizing element (6) has a securement element (7), a filter element (8) and a protective cap (9).
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3.发明申请公开(公告)号：US20180192475A1
公开(公告)日：2018-07-05
申请号：US15738679
申请日：2016-05-24
CPC分类号： H05B1/023 , G01N25/66 , H05B2203/035
摘要： A field device for use in hygienic applications in process and automation technology is disclosed, including a sensor element, an electrical circuit, a heating element, a housing, having an outside and an inside in which the sensor element, the electrical circuit and the heating element are arranged and mounted, and an external energy supply unit, wherein the field device possesses two connection pins, to which the sensor element and the electrical circuit are connected and enabling an electrical connection with the external electrical current supply, whereby forming a first electrical current loop, and wherein a second electrical current loop is arranged such that the heating element is in electrical contact with the external energy unit via one of the two connection pins and a third connection pin, whereby the second electrical current loop forms a parallel circuit with the first electrical current loop.
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公开(公告)号：US10168240B2
公开(公告)日：2019-01-01
申请号：US15311575
申请日：2015-04-20
发明人： Raphael Schonhardt , Michael Lais
摘要： A measuring transducer for metrological registering of a pressure to be measured as relative pressure referenced to a reference pressure reigning in the environment of the measuring transducer, comprising: a housing; a relative pressure sensor arranged in the housing; a pressure supply, via which the pressure to be measured is fed to the relative pressure sensor, and a reference pressure supply, via which the reference pressure is fed to the relative pressure sensor. An entrance of and to the reference pressure supply communicates with an opening in a housing outer wall, on whose exterior the reference pressure acts, characterized in that a pressure equalizing element is applied in the entrance of the reference pressure supply, and the pressure equalizing element has a securement element, a filter element and a protective cap.
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公开(公告)号：US20160313200A1
公开(公告)日：2016-10-27
申请号：US15104031
申请日：2014-11-14
发明人： Armin Rupp , Raphael Schonhardt , Michael Hugel
CPC分类号： G01L9/0075 , G01L19/0023 , G01L19/144
摘要： A relative pressure sensor (1) comprises: a pressure measuring cell (10) having a measuring diaphragm (12), a main body (14) which is connected to said measuring diaphragm, and a measuring chamber between said measuring diaphragm and main body, a reference pressure being applied to said measuring chamber by means of a reference pressure channel (18) which runs from a rear face (16) of the main body (14) through the main body (14); a clamping ring (38); and a housing (40) which has at least one housing body (42) with a measuring cell chamber (46), wherein the pressure measuring cell (10) is clamped in the measuring cell chamber (46) by the clamping ring (38), wherein the housing has a reference air opening (48) which communicates with the reference pressure channel (18) by means of a reference air path which has a path volume which is separate from the volume of the measuring cell chamber, wherein the reference air path has a section which runs along the rear face of the main body, wherein the section is bounded by the rear face of the main body and a guide body, which guide body is clamped in against the rear face of the main body and covers an opening of the reference pressure channel (18) in the rear face of the main body.
摘要翻译： 相对压力传感器（1）包括：具有测量膜片（12）的压力测量单元（10），与所述测量膜片连接的主体（14）以及测量膜片与主体之间的测量室， 参考压力通过从主体（14）的后表面（16）穿过主体（14）延伸的参考压力通道（18）施加到所述测量室; 夹紧环（38）; 以及壳体（40），其具有至少一个具有测量单元室（46）的壳体（42），其中所述压力测量单元（10）通过所述夹紧环（38）夹紧在所述测量室室（46）中， ，其中所述壳体具有参考空气开口（48），所述参考空气开口（48）通过参考空气路径与所述参考压力通道（18）连通，所述参考空气通道具有与所述测量室室的体积分开的路径体积，其中所述参考空气 路径具有沿着主体的后表面延伸的部分，其中该部分被主体的后表面限定，并且该引导体被夹紧在主体的后表面上并且覆盖主体 在主体的后表面中打开基准压力通道（18）。
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公开(公告)号：US10048149B2
公开(公告)日：2018-08-14
申请号：US15104031
申请日：2014-11-14
发明人： Armin Rupp , Raphael Schonhardt , Michael Hugel
摘要： A relative pressure sensor (1) includes a pressure measuring cell (10) having a measuring diaphragm (12), a main body (14) which is connected to said measuring diaphragm, and a the measuring chamber between the measuring diaphragm and main body, a reference pressure being applied to the measuring chamber by a reference pressure channel (18) which runs from a rear face (16) of the main body (14) through the main body (14); a clamping ring (38); and a housing (40) which has at least one housing body (42) with a measuring cell chamber (46), wherein the pressure measuring cell (10) is clamped in the measuring cell chamber (46) by the clamping ring (38). The housing has a reference air opening (48) which communicates with the reference pressure channel (18) by a reference air path which has a path volume which is separate from the volume of the measuring cell chamber, wherein the reference air path has a section which runs along the rear face of the main body, wherein the section is bounded by the rear face of the main body and a guide body, which guide body is clamped in against the rear face of the main body and covers an opening of the reference pressure channel (18) in the rear face of the main body.
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