公开(公告)号：US20230074294A1

公开(公告)日：2023-03-09

申请号：US18049229

申请日：2022-10-24

Applicant: Spruce Environmental Technologies, Inc.

Inventor： Mark Fearis ,  Paul Owens

IPC: G01L19/12 ,  G01L9/06 ,  G08B7/06 ,  G08B21/18

Abstract: A system and method of analyzing duct pressure within a pipe allows for monitoring and detecting vacuum pressure of gases. The system includes a pressure monitor and a target duct. The pressure monitor preferably includes an alarm light, a speaker, a sensing light, an alert indicator, and a battery alert. The method begins by periodically capturing a plurality of pressure readings inside the target duct with the pressure monitor. Each pressure reading is logged with the pressure monitor. Each pressure reading is compared to each situational alert with the pressure monitor to identify at least one matching alert for at least one specific reading. The matching alert is from the plurality of situational alerts. The specific reading is from the plurality of pressure readings. The matching alert is visually and/or audibly outputted with the pressure monitor, if the matching alert is identified for the specific reading.

公开(公告)号：US11340124B2

公开(公告)日：2022-05-24

申请号：US16101238

申请日：2018-08-10

Applicant: Sentons Inc.

Inventor： Samuel W. Sheng ,  Shih-Ming Shih ,  Yenyu Hsieh ,  Shirish A. Altekar

IPC: G06F3/045 ,  G01L1/18 ,  G06F3/041 ,  H03K17/96 ,  G06F3/043 ,  H01L41/319 ,  G01L5/00 ,  G01L9/06 ,  G01L9/08 ,  G01P15/12 ,  G06F1/16

Abstract: A sensor includes a plurality of piezoresistive elements and a plurality of electrical connection terminals. The plurality of piezoresistive elements are fabricated on a first side of a substrate. A second side of the substrate is configured to be coupled to an object where a physical disturbance is to be detected. A plurality of electrical connection terminals are coupled to the first side of the substrate.

公开(公告)号：US11268867B2

公开(公告)日：2022-03-08

申请号：US15844694

申请日：2017-12-18

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： John U. Knickerbocker ,  Minhua Lu ,  Katsuyuki Sakuma

IPC: H01L41/047 ,  H01L41/113 ,  G01L1/22 ,  G01L19/00 ,  G01L9/06 ,  G01L1/18 ,  G01L1/16

Abstract: According to an embodiment of the present invention, a structure for a strain gauge device is provided. The structure comprises a layer of strain gauge material and one or more contact pads positioned directly on the layer of strain gauge material. The structure further comprises a multiplexer, measuring device, amplifier, analog to digital converter, microcontroller, and wireless adapter. According to the structure, the multiplexer selects a given contact pad pair of the one or more contact pad pairs, the measuring device measures signal generated by the layer of strain gauge material between the given contact pad pair, the amplifier amplifies the measured signal, the analog to digital converter converts the amplified analog signal to a digital signal, the microcontroller processes the digital signal, and the wireless adapter transmits the processed digital signal. In addition, the structure may further comprise a battery to provide energy to the structure.

公开(公告)号：US11262256B2

公开(公告)日：2022-03-01

申请号：US16624476

申请日：2018-06-21

Applicant: EZMEMS LTD.

Inventor： Nicola Molinazzi ,  Tsvi Shmilovich

IPC: G01L1/22 ,  G01L1/18 ,  G01L9/06 ,  H01C17/06 ,  H01C17/24

Abstract: A sensor device is disclosed comprising at least one deformable substrate, at least one transducer element formed in or on a surface area of a first side of the deformable substrate, at least one other transducer element formed in or on a surface area of a second side of the deformable substrate, and electrical conductors formed on and/or in the substrate for electrically connecting between and to the transducer elements.

公开(公告)号：US11262253B2

公开(公告)日：2022-03-01

申请号：US16101244

申请日：2018-08-10

Applicant: Sentons Inc.

Inventor： Samuel W. Sheng ,  Shih-Ming Shih ,  Yenyu Hsieh ,  Shirish A. Altekar

IPC: G01L1/18 ,  G06F3/045 ,  G06F3/043 ,  G06F3/041 ,  G01L9/06 ,  G01L5/00 ,  H03K17/96 ,  H01L41/319 ,  G06F1/16 ,  G01L9/08 ,  G01P15/12

Abstract: A system is for detecting a location of a touch input on a surface of a propagating medium. The system includes a transmitter coupled to the propagating medium and configured to emit a signal. The signal has been allowed to propagate through the propagating medium and the location of the touch input on the surface of the propagating medium is detected at least in part by detecting an effect of the touch input on the signal that has been allowed to propagate through the propagating medium. The system includes a piezoresistive sensor coupled to the propagating medium. The piezoresistive sensor is configured to at least detect a force, pressure, or applied strain of the touch input on the propagating medium.

公开(公告)号：US11255718B2

公开(公告)日：2022-02-22

申请号：US15929574

申请日：2020-05-11

Applicant: Kulite Semiconductor Products, Inc.

Inventor： Joe VanDeWeert ,  Adam Hurst ,  Joseph Carter ,  Douglas R. Firth ,  Alan R. Szary

IPC: G01H13/00 ,  G01H11/08 ,  G01L9/06 ,  G01L9/00

Abstract: Certain implementations of the disclosed technology may include systems and methods for extending a frequency response of a transducer. A method is provided that can include receiving a measurement signal from a transducer, wherein the measurement signal includes distortion due to a resonant frequency of the transducer. The method includes applying a complementary filter to the measurement signal to produce a compensated signal, wherein applying the complementary filter reduces the distortion to less than about +/−1 dB for frequencies ranging from about zero to about 60% or greater of the resonant frequency. The method further includes outputting the compensated signal.

公开(公告)号：US11254565B2

公开(公告)日：2022-02-22

申请号：US16718997

申请日：2019-12-18

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Michael J. Seddon

IPC: B81B7/00 ,  G01L19/00 ,  B81C1/00 ,  B81B3/00 ,  G01L9/00 ,  G01L13/02 ,  G01L9/06

Abstract: Implementations of absolute pressure sensor devices may include a microelectromechanical system (MEMS) absolute pressure sensor coupled over a controller die. The MEMS absolute pressure sensor may be mechanically coupled to the controller die and may also be configured to electrically couple with the controller die. A perimeter of the controller die may be one of the same size and larger than a perimeter of the MEMS absolute pressure sensor. The controller die may be configured to electrically couple with a module through an electrical connector.

公开(公告)号：US20210381917A1

公开(公告)日：2021-12-09

申请号：US17303282

申请日：2021-05-26

Applicant: Hajime NAKAMURA

Inventor： Hajime NAKAMURA

IPC: G01L9/06 ,  G01D3/028 ,  G01L19/04 ,  G01L19/00

Abstract: A sensor drive circuit for driving a sensor with a current includes a first current source configured to generate a first current having a temperature characteristic of which a first order coefficient is positive and of which a second order coefficient is negative. The sensor drive circuit includes a second current source configured to generate a second current having a temperature characteristic of which a first order coefficient is negative and of which a second order coefficient is negative. The sensor drive circuit includes a current amplifier configured to amplify a third current, the third current being set by adding the first current and the second current. The sensor drive circuit includes a constant current source configured to generate a temperature-corrected constant current, such that a drive current for the sensor is set by adding the constant current to the amplified third current.

公开(公告)号：US11060937B2

公开(公告)日：2021-07-13

申请号：US16488470

申请日：2018-02-21

Applicant: Robert Bosch GmbH

Inventor： Ferenc Lukacs ,  Arne Dannenberg ,  Friedjof Heuck ,  Helmut Grutzeck ,  Mike Schwarz ,  Robert Maul ,  Tamas Dögei ,  Thomas Friedrich ,  Volkmar Senz

IPC: G01L19/14 ,  G01L19/06 ,  G01L9/06 ,  G01L9/00 ,  G01L19/00

Abstract: A micromechanical pressure sensor, having—a pressure sensor core including a sensor diaphragm and a cavity developed above the sensor diaphragm; and—a pressure sensor frame; and—a spring element for the mechanical connection of the pressure sensor core to the pressure sensor frame being developed in such a way that a mechanical robustness is maximized and a coupling of stress from the pressure sensor frame into the sensor pressure core is minimized.

公开(公告)号：US20210116319A1

公开(公告)日：2021-04-22

申请号：US17133726

申请日：2020-12-24

Applicant: DENSO CORPORATION

Inventor： Takeru KANAZAWA ,  Ryosuke MURAYAMA ,  Yoichi OKUI

IPC: G01L19/00 ,  G01L9/06 ,  G01K7/16

Abstract: A pressure/temperature sensor includes a sensor circuit configured to detect a pressure and a temperature of a measuring medium in a pipe, a holding member configured to hold the sensor circuit to be positioned inside a tube fixed to the pipe, and an introduction portion provided in the holding member to be positioned at an inner side of the pipe with respect to the sensor circuit. The introduction portion includes a plurality of blades having blade surfaces extending along a protrusion direction of the introduction portion with respect to the sensor circuit. The plurality of blades are arranged radially on a perpendicular surface perpendicular to the protrusion direction, and angles defined by the blade surfaces of the adjacent blades are all acute angles.