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公开(公告)号：US20180172535A1
公开(公告)日：2018-06-21
申请号：US15383813
申请日：2016-12-19
发明人： Kevin Harsh , Yiping Liu , Jon L. Lubbers , Evan Pilant , Laura Rodrigues , Laurel Frediani , Brian Schaible , Brady Knowles , Aris Legorreta
摘要： Heat resistant sensors equipped with any of a variety of transducers for measuring any of a variety of properties of fluids are constructed with components comprising materials that can withstand very high temperatures. Some embodiments of the sensors include a base comprising non-conductive ceramic material, and some embodiments of the transducers include conductive ceramic materials with resistivities that vary as a function of temperature. Some embodiments of the sensors also include electrical conductors comprising electrically conductive ceramic material or electrical conductors comprising an electrically conductive refractory metal on the base. Other embodiments of the transducers include a capacitor constructed of materials that can withstand very high temperatures.
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公开(公告)号：US10436661B2
公开(公告)日：2019-10-08
申请号：US15383813
申请日：2016-12-19
发明人： Kevin Harsh , Yiping Liu , Jon L. Lubbers , Evan Pilant , Laura Rodrigues , Laurel Frediani , Brian Schaible , Brady Knowles , Aris Legorreta
摘要： Heat resistant sensors equipped with any of a variety of transducers for measuring any of a variety of properties of fluids are constructed with components comprising materials that can withstand very high temperatures. Some embodiments of the sensors include a base comprising non-conductive ceramic material, and some embodiments of the transducers include conductive ceramic materials with resistivities that vary as a function of temperature. Some embodiments of the sensors also include electrical conductors comprising electrically conductive ceramic material or electrical conductors comprising an electrically conductive refractory metal on the base. Other embodiments of the transducers include a capacitor constructed of materials that can withstand very high temperatures.
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公开(公告)号：US11940336B2
公开(公告)日：2024-03-26
申请号：US17213522
申请日：2021-03-26
发明人： Evan Pilant , Dale Schoonover , Jakob Oreskovich , Brittany McGrogan , Eric Schneider , Bradley Smith , William VanHoose
IPC分类号： G01L1/14
CPC分类号： G01L1/14
摘要： A capacitive pressure transducer includes a shielded spacer positioned between the capacitor electrodes and driven with a separate voltage source.
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公开(公告)号：US20220307924A1
公开(公告)日：2022-09-29
申请号：US17213522
申请日：2021-03-26
发明人： Evan Pilant , Dale Schoonover , Jakob Oreskovich , Brittany McGrogan , Eric Schneider , Bradley Smith , William VanHoose
IPC分类号： G01L1/14
摘要： A capacitive pressure transducer includes a shielded spacer positioned between the capacitor electrodes and driven with a separate voltage source.
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公开(公告)号：US20240210257A1
公开(公告)日：2024-06-27
申请号：US18437970
申请日：2024-02-09
IPC分类号： G01L1/14
CPC分类号： G01L1/14
摘要： A method of shielding a capacitive pressure transducer by positioning an insulated shield spacer between the capacitor electrodes, covering the two electrodes with an electrically conductive shield box, applying a sensor voltage from a first voltage source across the two electrodes, and applying a shield voltage from a second voltage source to the insulated shield spacer and to the shield box.
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公开(公告)号：US11346698B2
公开(公告)日：2022-05-31
申请号：US16901834
申请日：2020-06-15
发明人： Kevin Harsh , Jon Lubbers , Evan Pilant , Alex Brand , Laura Ferlin , Samuel Hotaling , Steve Sheeran , Jakob Oreskovich , Eric Schneider , Thomas Schahrer , Lewis Wright
摘要： Heat resistant sensors equipped with any of a variety of transducers for measuring any of a variety of properties of fluids are constructed with components comprising materials that can withstand very high temperatures. Some embodiments of the sensors include a first pressure sensitive element and a second pressure sensitive element with respective first and second membranes positioned in juxtaposed relation to each other to form a capacitor. Some embodiments include a pusher that extends from the membrane toward a first electrode. Some embodiments have a housing comprising a ceramic substrate with a sensor element mounted on an inside surface of the substrate. Other embodiments have direction sensing capabilities including a heater positioned in a core material and at least three temperature sensors located at or near the peripheral surface of the core material and spaced apart angularly in relation to each other.
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