公开(公告)号：US11796378B1

公开(公告)日：2023-10-24

申请号：US17304776

申请日：2021-06-25

申请人： AMAZON TECHNOLOGIES, INC.

发明人： Robert M. Riggs ,  Andrew James Pierce ,  Cody Ryder Volk ,  Alexander Eugene Choi ,  Rafiuddin Arif Ahud ,  Graham Cyril Jordan ,  Paul Eugene Munger ,  Jacob Drewniak

IPC分类号： G01G3/13 ,  G01G19/414 ,  G06Q10/08 ,  G06Q10/087

CPC分类号： G01G3/13 ,  G01G19/4144 ,  G06Q10/087

摘要： An apparatus includes a platform or other accessory that is supported by one or more transducer assemblies using piezoelectric transducers. In one implementation, a saddle structure provides mechanical support to a platform while transferring force from a load onto a portion to which a pair of piezoelectric transducers are affixed. As a load on the saddle changes, the resulting change in strain on the portion produces signals from the piezoelectric transducers. In another implementation a beam provides mechanical support to a platform or other accessory. A pair of piezoelectric transducers are affixed near a strain concentrator, such as a hole in the beam, produce signals indicative of a change in load on the beam.

公开(公告)号：US20220061766A1

公开(公告)日：2022-03-03

申请号：US17006223

申请日：2020-08-28

申请人： HB Innovations, Inc.

发明人： Peter Fornell ,  Joseph J. Kopp, JR. ,  Kevin Bailey

IPC分类号： A61B5/00 ,  G01G19/44 ,  G01G3/14 ,  G01G3/13 ,  G01G9/00 ,  A61M21/02 ,  A61B7/00 ,  A61B5/107 ,  A61B5/11 ,  G16H40/63 ,  G16H20/30

摘要： An infant sleep device may include a platform for supporting an infant, a base upon which the platform is supported, and one or more weight sensors positioned to measure weight of an infant positioned on the platform.

公开(公告)号：US20210025749A1

公开(公告)日：2021-01-28

申请号：US16933674

申请日：2020-07-20

申请人： Circuits & Systems, Inc.

发明人： Vyacheslav D. Kats

IPC分类号： G01G3/13 ,  G01G3/16 ,  G01G23/01

摘要： Apparatus and related methods are provided in a surface acoustic wave (SAW) scale for measuring weight of a load. A processor reads a first frequency of a SAW delay line operating in a first mode. A push oscillator injects a frequency similar to but different than the first frequency in order to cause the SAW delay line to operate in a second mode, and the processor reads a second frequency of the SAW delay line operating in the second mode. A difference between the frequencies is calculated and compared to values in a stored table to determine the first mode at which the SAW delay line was operating. Based on a determination of the first mode and the first frequency, the weight of the load is determined. This determined weight can be used to recalibrate an auxiliary weight sensor.

公开(公告)号：US10801881B2

公开(公告)日：2020-10-13

申请号：US15901268

申请日：2018-02-21

申请人： KISTLER HOLDING AG

发明人： Thomas Wuhrmann ,  Adrian Hofmann ,  Manuel Aeschbacher

IPC分类号： G01G23/01 ,  G01G21/26 ,  G01G19/02 ,  G01G19/03 ,  G01G3/13

摘要： An apparatus for calibrating a weigh-in-motion (WIM) sensor embedded in a roadway includes an actuator, an applicator, a force sensor disposed between the actuator and the applicator, and a carriage supporting the actuator, the applicator and the force sensor, which carriage is selectively movable on a longitudinal support carried by a frame. The apparatus also includes a drive unit to move the applicator along the longitudinal support as well as a position sensor that detects a position of the calibration path relative to the WIM sensor. According to a method for calibrating a WIM sensor, the frame is positioned to straddle the WIM sensor. The applicator introduces along the calibration path at a succession of different positions, a reference force that is measured by the WIM sensor and the force sensor, and these measurements are compared to generate a calibration.

公开(公告)号：US10775225B2

公开(公告)日：2020-09-15

申请号：US16207859

申请日：2018-12-03

申请人： Kistler Holding AG

发明人： Dennis Minkoley ,  Biruk Hailesilassie

IPC分类号： G01G19/02 ,  G01G23/10 ,  G01G3/13 ,  G01L1/04

摘要： A WIM system for detecting loads of vehicles on a roadway segment when a crossing wheel of a vehicle crosses a WIM sensor includes a WIM sensor arranged in the roadway segment and having a section that is flush with the roadway surface. The WIM sensor includes an elongated profile extending along a longitudinal axis and defining at least one space in which is arranged at least one force sensor, which is configured to generate a force sensor signal that corresponds to a dynamic ground reaction force to the crossing wheel. The WIM system includes at least one acceleration sensor that detects an acceleration of the road surface of the roadway segment in which the WIM sensor is arranged in at least one spatial direction and that accordingly provides an acceleration sensor signal indicative of the deflection of the roadway segment along the one spatial direction.

公开(公告)号：US20200025601A1

公开(公告)日：2020-01-23

申请号：US16484602

申请日：2017-02-13

申请人： ADVANCED WAVE SENSORS, S.L.

发明人： Antonio ARNAU VIVES ,  Yolanda JIMÉNEZ JIMÉNEZ ,  Pablo GARCÍA MOLLA ,  José Vicente GARCÍA NARBÓN ,  Román FERNÁNDEZ DÍAZ

IPC分类号： G01G3/13 ,  G01G3/16

摘要： The invention relates to a cell for measuring a piezoelectric resonator, which has a first casing body and a second casing body, and a quartz resonator configured as a wafer having metal layers on both sides as electric contact surfaces, the first casing body having coupling features and the second casing body having coupling slots, the coupling features being configured to be assembled in the coupling slots when the measuring cell is in a working position, such that the first casing body is assembled in the second casing body when pressure is exerted on the first casing body until the surface of the lower end of the first body makes physical contact with the upper surface of the second casing body and, subsequently, the first casing body is rotated to one side of the axis of symmetry of the measuring cell.

公开(公告)号：US10215620B2

公开(公告)日：2019-02-26

申请号：US15593119

申请日：2017-05-11

申请人： Lotfi A. Zadeh

发明人： Lotfi A. Zadeh

IPC分类号： H01H3/14 ,  G01G19/52 ,  G01G3/13

摘要： In one example, we describe a method and system for tables, beds, chairs, cabinets, bags, boxes, or appliances, to find the weight of an object or human conveniently and reliably, using Z-casters. Z-caster is based on Z-numbers, which is a pair of (A,B), where A is the value of the weight (based on and expressed as a Fuzzy parameter/value), and B is the reliability for that (expressed here as a Z-number). The calibration method is also described. Each basic unit has 2 types of sensors: for coarse measurement (just as a switch, with a rough/Fuzzy threshold) and for fine measurement. Many variations, examples, applications, and materials are shown here.

公开(公告)号：US20180245970A1

公开(公告)日：2018-08-30

申请号：US15901268

申请日：2018-02-21

申请人： KISTLER HOLDING AG

发明人： THOMAS WUHRMANN ,  ADRIAN HOFMANN ,  MANUEL AESCHBACHER

IPC分类号： G01G23/01 ,  G01G19/03 ,  G01G3/13

摘要： An apparatus for calibrating a weigh-in-motion (WIM) sensor embedded in a roadway includes an actuator, an applicator, a force sensor disposed between the actuator and the applicator, and a carriage supporting the actuator, the applicator and the force sensor, which carriage is selectively movable on a longitudinal support carried by a frame. The apparatus also includes a drive unit to move the applicator along the longitudinal support as well as a position sensor that detects a position of the calibration path relative to the WIM sensor. According to a method for calibrating a WIM sensor, the frame is positioned to straddle the WIM sensor. The applicator introduces along the calibration path at a succession of different positions, a reference force that is measured by the WIM sensor and the force sensor, and these measurements are compared to generate a calibration.

公开(公告)号：US20180235539A1

公开(公告)日：2018-08-23

申请号：US15900894

申请日：2018-02-21

申请人： KONINKLIJKE PHILIPS N.V.

发明人： AMIR ABDOLAHI ,  SAMAN PARVANEH ,  JARNO MIKAEL RIISTAMA

IPC分类号： A61B5/00 ,  A61B5/1455 ,  A61B5/11 ,  G16H50/20 ,  G06N99/00 ,  G01G3/13

CPC分类号： A61B5/4878 ,  A61B5/0022 ,  A61B5/0205 ,  A61B5/1116 ,  A61B5/1118 ,  A61B5/14552 ,  A61B5/4842 ,  A61B5/6807 ,  A61B5/7267 ,  A61B2562/0219 ,  A61B2562/0261 ,  G01G3/13 ,  G01G19/44 ,  G01G19/52 ,  G06N20/00 ,  G16H40/63 ,  G16H50/20 ,  G16H50/30

摘要： A wearable device for a patient includes a sock configured for wearing on a foot of a patient. A plurality of vital sign sensors is operably attached to the sock. The vital sign sensors are configured to measure vital sign data of the patient. At least one electronic processor is programmed to detect a state of a chronic illness based on the vital sign data measured by the plurality of vital sign sensors.

公开(公告)号：US20180209836A1

公开(公告)日：2018-07-26

申请号：US15927710

申请日：2018-03-21

申请人： Rutgers, The State University of New Jersey

发明人： Yicheng Lu ,  Pavel I. Reyes ,  Steven Zheng ,  Andrew Zheng ,  Keyang Yang

IPC分类号： G01G3/16 ,  G01G3/13 ,  G01N33/483 ,  G01H11/08 ,  G01H13/00 ,  H01L41/113 ,  H01L41/29

CPC分类号： G01G3/165 ,  B82Y15/00 ,  C12M1/34 ,  C12Q1/025 ,  C12Q1/04 ,  G01G3/13 ,  G01H11/08 ,  G01H13/00 ,  G01N29/022 ,  G01N29/46 ,  G01N33/4833 ,  G01N33/5005 ,  G01N33/5008 ,  G01N2291/0256 ,  H01L41/1132 ,  H01L41/18 ,  H01L41/1871 ,  H01L41/29

摘要： A magnesium zinc oxide (MZO) nanostructure modified quartz crystal microbalance (MZOnano-QCM) takes advantage of the unique sensing ability and biocompatibility of MZO-based nanostructures, and combines them with the dynamic impedance spectrum capability of the bulk acoustic wave (BAW) devices including QCM, to form a real-time, noninvasive and label-free cell monitoring biosensor, specifically detecting the susceptibility and resistance of bacterial and fungal strains and cancer cells to various antibiotic and antifungal drugs and anticancer drugs, respectively.