公开(公告)号：US12055453B2

公开(公告)日：2024-08-06

申请号：US17930024

申请日：2022-09-06

Applicant: KABUSHIKI KAISHA TOSHIBA ,  Toshiba Energy Systems & Solutions Corporation

Inventor： Jun Mitani ,  Takero Mukai ,  Takanobu Kojima ,  Masahiko Nakazono

IPC: G01L23/08 ,  G01L1/02 ,  G01L1/10 ,  G01L1/16 ,  G01L1/25

CPC classification number: G01L23/08 ,  G01L1/02 ,  G01L1/103 ,  G01L1/106 ,  G01L1/162 ,  G01L1/165 ,  G01L1/167 ,  G01L1/255

Abstract: A stress estimation method for a machine structure according to an embodiment is provided with a calculation step of calculating a relationship between the stress generated at the evaluation target position and a physical quantity including a sound pressure or vibration generated at a detection position different from the evaluation target position during vibration of the machine structure. The stress estimation method for a machine structure is provided with a detection step of detecting the physical quantity generated at the detection position during operation of the machine structure. The stress estimation method for a machine structure is provided with an estimation step of estimating the stress generated at the evaluation target position during operation of the machine structure on the basis of the relationship calculated in the calculation step and the physical quantity detected in the detection step.

公开(公告)号：US20230404777A1

公开(公告)日：2023-12-21

申请号：US18043438

申请日：2021-08-27

Applicant: CAMBRIDGE ENTERPRISE LIMITED

Inventor： Sohini KAR-NARAYAN ,  Qingshen JING ,  Jehangir CAMA ,  Liam IVES ,  Vikas KHANDUJA

IPC: A61F2/46 ,  G01L1/14 ,  G01L1/02 ,  B81B3/00 ,  B81B7/00 ,  B81C1/00

CPC classification number: A61F2/468 ,  G01L1/142 ,  G01L1/02 ,  B81B3/0075 ,  B81B7/0025 ,  B81C1/00674 ,  B81C2203/032 ,  B81B2203/0338 ,  B81B2203/04 ,  B81B2207/115 ,  B81C2201/0185 ,  B81C2201/034 ,  B81B2201/05

Abstract: A microfluidic sensor comprising: a first substrate; a second substrate; a cavity formed between the first substrate and the second substrate, the cavity comprising a reservoir portion and a channel portion extending from the reservoir portion; a capacitive element disposed between the first substrate and the second substrate, the capacitive element being at least partially disposed in the channel portion of the cavity; and a dielectric sensing liquid provided in the reservoir portion. Upon application of a force to the first substrate adjacent the reservoir portion, the reservoir portion is configured to deform and displace the sensing liquid along the channel portion, so as to change the capacitance of the capacitive element within the channel portion.

公开(公告)号：US11821801B1

公开(公告)日：2023-11-21

申请号：US16745671

申请日：2020-01-17

Applicant: Stable Laser Systems, Inc.

Inventor： Josue Davila-Rodriguez ,  David Lee ,  Mark Notcutt ,  Michael Grisham ,  Nathaniel Phillips

IPC: G01L11/02 ,  G02B27/10 ,  G01C19/72 ,  G01N21/45 ,  G01L1/02

CPC classification number: G01L1/02 ,  G01C19/727 ,  G01N21/45 ,  G02B27/10

Abstract: In an aspect, a pressure sensor for determining pressure in an environment comprises: a source for emitting a coherent reference light characterized by a reference light frequency; a first lock-in mechanism configured to send an electrical signal to the source based on a reference resonance frequency; a reference cavity; wherein the reference cavity is characterized by the reference resonance frequency; a modulator configured a reference light to generate at least a first sideband frequency such that an output of said modulator is a measurement light characterized by at least the first sideband frequency; a frequency synthesizer configured to drive the modulator; a second lock-in mechanism configured to send an electrical signal to the frequency synthesizer based on a measurement resonance frequency; and a measurement cavity configured to receive at least a portion of the measurement light; wherein the measurement cavity is characterized by the measurement resonance frequency; and wherein the pressure of the environment is determined based on the reference resonant frequency and the measurement resonance frequency.

公开(公告)号：US11747219B2

公开(公告)日：2023-09-05

申请号：US17694667

申请日：2022-03-15

Applicant: DOOSAN ENERBILITY CO., LTD

Inventor： Yeong Chun Kim ,  Jin Uk Kim ,  Dong Hwa Jung ,  Gi Won Hong ,  Kwang Yol Lee

IPC: G01L3/20 ,  G01L1/02 ,  G01L5/13

CPC classification number: G01L1/02 ,  G01L3/20 ,  G01L5/13

Abstract: A hydrodynamic-type hydraulic dynamometer is provided. The hydrodynamic-type hydraulic dynamometer includes a shaft rotatably mounted by a plurality of bearings, a stator fixed around the shaft and having a toroidal chamber therein, a runner rotatably coupled to the shaft and causing a fluid introduced into the toroidal chamber to flow therethrough, an inner ring mounted to extend inwardly from a radially outer side of the toroidal chamber and having a control slit formed therethrough, and a shutter configured to adjust an opening degree of the control slit.

公开(公告)号：US20190195719A1

公开(公告)日：2019-06-27

申请号：US16255842

申请日：2019-01-24

Applicant: KUNSHAN INNOVATION TESTING INSTRUMENTS CO., LTD.

Inventor： Zecheng TAO

IPC: G01L25/00 ,  G01L1/02

CPC classification number: G01L25/00 ,  G01L1/02

Abstract: A precision detection device for a force standard machine includes a first hydraulic cylinder, a pipeline and a force loading device. A liquid medium is disposed in, the first hydraulic cylinder, and a liquid level area of the liquid medium is a known Value. The pipeline is a hollow tubular structure, and a first end of the pipeline is communicated with the liquid medium in the first hydraulic cylinder. The force loading device acts on the liquid medium, in the first hydraulic cylinder to produce a pressure increment or a pressure intensity increment on the, liquid medium. A force value comparison machine and a precision detection method for a force standard machine are also provided.

公开(公告)号：US20180243924A1

公开(公告)日：2018-08-30

申请号：US15758551

申请日：2016-09-08

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA ,  DREXEL UNIVERSITY

Inventor： Yon Jason Visell ,  Bin Li

IPC: B25J13/08 ,  G01L1/14 ,  G01L5/22 ,  G01L1/00

CPC classification number: B25J13/084 ,  G01L1/005 ,  G01L1/02 ,  G01L1/146 ,  G01L5/228

Abstract: Embodiments of the present disclosure describe a tactile sensor comprising an elastomeric membrane having a channel formed therein, a liquid conductive material located in the channel, and electrodes electrically connected to the liquid conductive material, sufficient to form a stretchable electronic tactile sensor, wherein the stretchable electronic tactile sensor can be stretched over 50% in at least two axial directions from a resting state of the stretchable electronic tactile sensor. Embodiments further describe a method of fabricating a tactile sensor comprising providing a mold for fixing a plurality of filaments in parallel on a first plane and on a second plane; casting a curable material into the mold; curing the curable material to form a membrane; extracting the plurality of filaments from the membrane to form microfluidic channels in the membrane; and functionalizing the membrane by introducing a conductive liquid into the microfluidic channels of the membrane.

公开(公告)号：US09756796B2

公开(公告)日：2017-09-12

申请号：US14369264

申请日：2012-12-27

Applicant: EMPRESA BRASILEIRA DE PESQUISA AGROPECUARIA - EMBRAPA

Inventor： Adonai Gimenez Calbo

IPC: F16K17/36 ,  A01G25/16 ,  A01G7/00 ,  G01L1/02 ,  G01D5/02 ,  G05D7/01 ,  G01N3/12

CPC classification number: A01G25/16 ,  A01G7/00 ,  G01D5/02 ,  G01L1/02 ,  G01N3/12 ,  G05D7/0113 ,  Y10T137/1842 ,  Y10T137/2541

Abstract: A pressure measuring and flow-rate controlling device includes: a flattening plate including a fluid cavity in the flattening plate; a flexible contact membrane provided on said flattening plate; a support member configured to secure the flattening plate against a sample; a pressure adjuster; an inlet tube connected to the pressure adjuster at a first end of the inlet tube, the inlet tube connected to a first end of the fluid cavity at a second end opposite to the first end of the inlet tube; and an outlet tube connected to a second end opposite of the first end of the fluid cavity, where the pressure adjuster is configured to control a flow rate of a fluid passing through the fluid cavity based on cell pressure of the sample.

公开(公告)号：US09625333B2

公开(公告)日：2017-04-18

申请号：US14212609

申请日：2014-03-14

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

Inventor： Leif Jentoft ,  Yaroslav Tenzer ,  Robert Howe

IPC: G01L5/16 ,  G01L5/22 ,  G01L1/02

CPC classification number: G01L5/228 ,  G01L1/02 ,  G01L5/16 ,  H01L2224/48137 ,  Y10T29/49007

Abstract: A tactile sensor includes a pressure transducer encapsulated in an elastic material that defines a contact surface and provides a transmission path that transmits contact forces or pressure distributions applied to the contact surface to the pressure transducer. The pressure transducer can be enclosed in a protective housing that defines a chamber around the transducer. The housing can include one or more openings that expose the chamber to the exterior pressure. The tactile sensor can be made by applying the elastic material in liquid form and exposing the housing to a vacuum that removes air inside the chamber allowing the liquid elastic material to flow into the chamber. Once cured, the elastic material defines a contact surface of the tactile sensor and serves to transfer contact forces applied to the contact surface to the transducer.

公开(公告)号：US09322305B2

公开(公告)日：2016-04-26

申请号：US14553948

申请日：2014-11-25

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Hak Sung Lee ,  Sang Hyun Jeong ,  Sang Lok Song ,  Jae Shin Yi ,  Yoh Han Kim ,  Jong Ho Lee

IPC: F01M1/02 ,  F01M1/16 ,  G01L1/02 ,  G06N99/00 ,  F16H61/00

CPC classification number: F01M1/16 ,  F01M1/02 ,  F01M2001/0215 ,  F16H61/0025 ,  F16H2061/0087 ,  F16H2061/0096 ,  G01L1/02 ,  G06N99/005

Abstract: A system and method of controlling an automotive electric oil pump are provided. The method of controlling an oil pump can minimize power consumption of a vehicle and improve the fuel efficiency accordingly by learning the performance of the electric oil pump and operating the electric oil pump based on performance.

Abstract translation: 提供一种控制汽车电动油泵的系统和方法。 控制油泵的方法可以通过学习电动油泵的性能并且基于性能来操作电动油泵来最小化车辆的功率消耗并且提高燃料效率。

公开(公告)号：US20160018279A1

公开(公告)日：2016-01-21

申请号：US14772056

申请日：2014-03-13

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Suwoong LEE ,  Soono KWON ,  Youngjin KIM

IPC: G01L5/16 ,  G01B11/16 ,  G01L1/00

CPC classification number: G01L5/16 ,  G01B11/16 ,  G01B13/24 ,  G01L1/00 ,  G01L1/02

Abstract: An apparatus for sensing the operation of an air cushion includes an air cushion with the inside provided with a plurality of patterns filled with air; a part for sensing the air pressure inside the air cushion so as to output a corresponding air pressure sensing signal; a part for sensing the temperature inside the air cushion so as to output a corresponding temperature sensing signal; a photographic part arranged in the lower part of the air cushion for photographing the plurality of patterns so as to output an image of each pattern; and a control unit for determining the air pressure inside the air cushion by measuring the force exerted on the air cushion in the Y-direction based on the temperature, air pressure and contact area, and by measuring the force exerted on the air cushion in the X-direction based on the displacement of the contact area.

Abstract translation: 用于感测气垫的操作的装置包括具有内部的气垫，所述气垫具有填充有空气的多个图案; 用于感测气垫内的气压的部分，以输出相应的气压感测信号; 用于感测气垫内的温度以输出相应的温度感测信号的部分; 布置在气垫的下部的照相部分，用于拍摄多个图案，以输出每个图案的图像; 以及控制单元，用于通过基于温度，空气压力和接触面积来测量在Y方向上施加在气垫上的力，并且通过测量施加在气垫中的力的位置来确定气垫内的空气压力 基于接触面积位移的X方向。