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公开(公告)号：US20240280426A1
公开(公告)日：2024-08-22
申请号：US18133076
申请日：2023-04-11
Inventor： Xiaopeng Li , Taehwa Lee , Ziqi Yu , Yuyang Song
CPC classification number: G01L9/08 , G01L9/0022 , G01L9/06
Abstract: Systems described herein relate to sensing pressure. In one arrangement, a pressure sensor is disclosed. The pressure sensor includes a circuit including a resistor, an inductor, and a capacitor. The circuit generates an electrical resonance. The resistor is an elastomer having a resistance and connected to an outer surface of an inflatable. The pressure sensor also includes a resonator connected to the circuit. The resonator generates a mechanical resonance coupling with the electrical resonance to create a detuning frequency having a sublinear dependence on the resistance of the elastomer. A pressure of the inflatable correlates with the detuning frequency.
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公开(公告)号：US20180322323A1
公开(公告)日：2018-11-08
申请号：US15704065
申请日：2017-09-14
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Inventor： Rui RAN , Dansheng CHEN
CPC classification number: G06K9/0002 , G01L9/06 , G06F3/0412 , G06F3/0414 , G06F3/044 , G06K9/00013 , G06K9/00087
Abstract: A fingerprint module includes a fingerprint identification chip, a flexible circuit board, and a pressure detection unit. The pressure detection unit includes a rigid substrate and a pressure detection circuit formed on the rigid substrate. The fingerprint identification chip and the pressure detection unit are disposed on two opposite surfaces of the flexible circuit board respectively, and are separately electrically connected to the flexible circuit board, respectively.
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3.发明申请公开(公告)号：US20180093881A1
公开(公告)日：2018-04-05
申请号：US15283777
申请日：2016-10-03
Applicant: Continental Automotive Systems, Inc.
Inventor： Jen-Huang Albert Chiou , Shiuh-Hui Steven Chen
CPC classification number: B81B3/0059 , B81B2201/0264 , B81B2203/0127 , B81B2203/0315 , B81C1/00158 , B81C2201/013 , B81C2203/036 , G01L9/06 , G01P15/00 , H01C10/10 , H01C10/20
Abstract: An improved microelectromechanical system (MEMS) pressure sensing device has an extended shallow polygon cavity on a top side of a silicon supporting substrate. A buried silicon dioxide layer is formed between the top side of the supporting substrate and a bottom side of a device layer. Piezoresistors and bond pads are formed and located on a top side of the device layer and produce measureable voltage changes responsive to a fluid pressure applied to the device layer. The purpose of the extend shallow polygon cavity is to improve the sensitivity or increase the span while keep a low pressure nonlinearity during shrinking the die size of the MEMS pressure sensing device die with corner metal bond pads having a keep-out distance to prevent a wire bonder from breaking the thin diaphragm.
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公开(公告)号：US20170254713A1
公开(公告)日：2017-09-07
申请号：US15510506
申请日：2014-09-28
Applicant: WUHAN FINEMEMS INC.
Inventor： Sheng LIU , Xiaoping WANG , Dengfeng WU , Fanliang LI , Bin CHEN
CPC classification number: G01L19/141 , G01L9/0054 , G01L9/06 , G01L19/0038 , G01L19/0084 , G01L19/145 , G01L19/147
Abstract: A pressure sensor has a housing, an air lead-in hole, a pressure lead-in hole, an inner cavity, a sensor chip, a lead frame and a cover plate. One end of the air lead-in hole is in communication with the inner cavity of the housing, and the other end of the air lead-in hole is in communication with the air; the pressure lead-in hole is perpendicularly disposed at the center of the upper surface of the housing, two steps are disposed on the upper surface of the inner cavity, and a horizontal surface-mounted device surface is disposed on each of the steps. The center of the sensor chip is aligned with the centers of the pressure lead-in hole, and the lower end of the pressure lead-in holes are in communication with the cavity of the sensor chip.
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公开(公告)号：US09716495B2
公开(公告)日：2017-07-25
申请号：US14316962
申请日：2014-06-27
Applicant: Kulite Semiconductor Products, Inc.
Inventor： Wolf S. Landmann
IPC: H03K17/00 , G01L9/00 , G05D23/20 , G01L7/04 , G01L9/06 , H03K5/08 , H03K17/94 , H03K5/153 , H01H35/24 , H01H37/00
CPC classification number: H03K17/00 , G01L7/04 , G01L9/00 , G01L9/06 , G05D23/20 , H01H35/24 , H01H37/00 , H03K5/08 , H03K5/153 , H03K17/94 , Y10T307/766 , Y10T307/773 , Y10T307/779 , Y10T307/786
Abstract: Systems and methods are disclosed for a two lead electronic switch adapted to replace a mechanical switch. In one embodiment, a device is provided that includes a sensor and an electronic circuit having a voltage limiting circuit. The electronic circuit is configured to deactivate/activate the voltage limiting circuit to operate the electronic circuit in a first/second state in response to determining that an output of the sensor is less/more than a threshold voltage. The circuit includes first and second terminals configured to receive a switch voltage used to provide power for the device. The device sets the switch voltage to a first voltage level operative to power the electronic circuit and the sensor while the electronic circuit is operating in the first state and to a second voltage level operative to power the electronic circuit and the sensor while the electronic circuit is operating in the second state.
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Patent Agency Ranking
公开(公告)号：US20170205299A1
公开(公告)日：2017-07-20
申请号：US15001970
申请日：2016-01-20
Applicant: Rosemount Aerospace Inc.
Inventor： Weibin Zhang
IPC: G01L9/00
CPC classification number: G01L9/0052 , G01L9/0055 , G01L9/06 , G01L13/00 , G01L13/025 , G01L15/00
Abstract: Apparatus and associated methods relate to generating a signal indicative of a differential pressure using a first absolute pressure sensor and a second absolute pressure sensor, each having a positive relation transducer configured to generate an electrical signal that increases in response to increasing pressure and a negative relation transducer configured to generate an electrical signal that decreases in response to increasing pressure. The first and second positive relation transducers of the first and second absolute pressure sensors, respectively, are electrically connected as a first leg of a Wheatstone bridge at a first output node. The first and second negative relation transducers of the first and second absolute pressure sensors, respectively, are electrically connected as a second leg of a Wheatstone bridge at a second output node. Both positive and both negative relation transducers are connected to a first and a second bias node of the Wheatstone bridge, respectively.
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公开(公告)号：US20170176278A1
公开(公告)日：2017-06-22
申请号：US15209185
申请日：2016-07-13
Applicant: Continental Automotive Systems, Inc.
Inventor： Shiuh-Hui Steven Chen , Jen-Huang Albert Chiou , Robert C. Kosberg , Daniel Roy Empen
CPC classification number: G01L19/146 , B81B7/0045 , G01L9/0054 , G01L9/0055 , G01L9/06 , G01L19/0046 , G01L19/0069 , G01L19/02 , G01L19/04 , G01L19/147 , G01L19/148 , H01L2224/48091 , H01L2924/00014
Abstract: Suspending a microelectromechanical system (MEMS) pressure sensing element inside a cavity using spring-like corrugations or serpentine crenellations, reduces thermally-mismatched mechanical stress on the sensing element. Overlaying the spring-like structures and the sensing element with a gel further reduces thermally-mismatched stress and vibrational dynamic stress.
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公开(公告)号：US09535103B2
公开(公告)日：2017-01-03
申请号：US13442975
申请日：2012-04-10
Applicant: Johan Raman , Pieter Rombouts
Inventor： Johan Raman , Pieter Rombouts
IPC: G01R27/02 , G01R31/00 , G01L1/14 , G01L1/22 , G01L9/02 , G01L9/04 , G01L9/06 , G01L9/12 , G01R31/28
CPC classification number: G01R31/003 , G01L1/144 , G01L1/2262 , G01L9/02 , G01L9/04 , G01L9/06 , G01L9/12 , G01R31/2829
Abstract: A difference measurement circuit including a first port and a second port for connection to a first set of nodes and a second set of nodes of a sensor unit. The circuit further includes switching units for switching excitation signals emanating from excitation nodes from being applied to the first set of nodes via the first port to being applied to the second set of nodes via the second port and for switching differential measurement signals measured at sensing nodes from being obtained from the second set of nodes via the second port to being obtained from the first set of nodes via the first port. A corresponding method is described. The circuit further includes redundancy testing circuitry for evaluating the similarity or deviation between measurement signals obtained in different states of the switching units.
Abstract translation: 差分测量电路，包括用于连接到第一组节点的第一端口和第二端口以及传感器单元的第二组节点。 该电路还包括用于切换从激励节点发出的激励信号经由第一端口被施加到第一组节点以经由第二端口被施加到第二组节点并且用于切换在感测节点处测量的差分测量信号的切换单元 从第二组节点经由第二端口获得经由第一端口从第一组节点获得。 描述相应的方法。 电路还包括用于评估在开关单元的不同状态下获得的测量信号之间的相似性或偏差的冗余测试电路。
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公开(公告)号：US20160245712A1
公开(公告)日：2016-08-25
申请号：US15143956
申请日：2016-05-02
Applicant: Kulite Semiconductor Products, Inc.
Inventor： Wolf S. Landmann , Joseph R. VanDeWeert
IPC: G01L9/06
CPC classification number: G01L9/065 , G01L9/0052 , G01L9/0055 , G01L9/06 , G01L19/04
Abstract: The present invention provides a self-heated pressure sensor assembly and method of utilizing the same. The self-heated pressure sensor assembly regulates and maintains the temperature of the pressure sensor, regardless of the external temperature environment, without an external heater as in prior art embodiments. Exemplary embodiments of the pressure sensor assembly incorporate a resistance heater that is built into the sensing chip of the pressure sensor assembly. The pressure sensor assembly also utilizes the resistance of the pressure sensing elements to monitor the temperature of the assembly, which works alongside the resistance heater to maintain a stable temperature within the pressure sensor assembly
Abstract translation: 本发明提供一种自加热式压力传感器组件及其利用方法。 如现有技术实施例那样，自加热压力传感器组件调节和维持压力传感器的温度，而不管外部温度环境如何，而不需要外部加热器。 压力传感器组件的示例性实施例包括内置于压力传感器组件的感测芯片中的电阻加热器。 压力传感器组件还利用压力感测元件的电阻来监测组件的温度，该温度与电阻加热器一起工作以在压力传感器组件内保持稳定的温度
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公开(公告)号：US09395259B2
公开(公告)日：2016-07-19
申请号：US14060771
申请日：2013-10-23
Applicant: Continental Automotive Systems, Inc.
Inventor： Jen-Huang Albert Chiou , Xiaoyi Ding , Shiuh-Hui Steven Chen , Jeffrey J. Frye
CPC classification number: G01L9/06 , G01L9/0054 , G01L19/0038 , G01L19/04 , G01L19/141 , G01L19/147 , H01L2224/48091 , H01L2224/48137 , H01L2924/00014
Abstract: In a MEMS PRT having a diaphragm that is located offset from the center of the die, thermally-induced thermal noise in the output of a Wheatstone bridge circuit is reduced by locating the Wheatstone bridge circuit away from the largest area of the die and supporting pedestal.
Abstract translation: 在具有偏离模具中心的隔膜的MEMS PRT中，通过将惠斯登电桥电路定位成远离模具和支撑基座的最大区域来减小惠斯登电桥电路的输出中的热感应热噪声 。
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