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公开(公告)号：US11169036B2
公开(公告)日：2021-11-09
申请号：US16766185
申请日：2017-11-22
Applicant: KOC UNIVERSITESI
Inventor： Ismail Lazoglu , Sertac Guneri Yazgi , Omer Subasi
Abstract: A monolithic triaxial dynamometer for machining applications comprising one flexure frame with three flexural arms and three light blocking extensions protruding three different photointerrupter sensors housed in specially designated sensor placement slots situated on the sensor stand, the bottom of which lands on the floor of the external mounting structure, which is aligned and connected with the said top flexure frame using first and third group screw holes, thus bringing together a dynamometer used for force sensing in various industrial applications.
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公开(公告)号：US20210338364A1
公开(公告)日：2021-11-04
申请号：US17266918
申请日：2019-08-28
Inventor： Michael John Paulsen , Y. Joseph WOO , Mark R. Cutkosky , Jung Hwa Bae , Annabel M. Imbrie-Moore
Abstract: Fiber Bragg grating (FBG) sensors are used to provide measurement of chordae tendineae forces. Two basic modes of operation are considered, The first mode is a research mode, where the FBG sensors are affixed to native chordae in situ and preferably in vivo to provide data on chordae forces in a beating heart under various conditions (e.g., normal, hypertensive, etc.), The second mode is a clinical mode, where the FBG sensor can be used to measure tension on a prosthetic neochord during the surgical procedure to implant the prosthesis.
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公开(公告)号：US11162852B1
公开(公告)日：2021-11-02
申请号：US17014493
申请日：2020-09-08
Applicant: Kidde Technologies, Inc.
Inventor： Elbert Jeyapaul , Aswin Kumar Vallamkondu
IPC: G01L1/24 , G01L11/02 , G02B6/02 , G01K11/3206
Abstract: A sensor to sense pressure in a pressure bottle and a method of assembling the sensor involve two or more fiber Bragg gratings (FBGs) affixed to a different radial location of a diaphragm seal of the pressure bottle. The sensor includes a light source to provide incident light to the two or more FBGs, and a photodetector to detect reflected light resulting from the two or more FBGs. Processing circuitry determines a pressure change in the pressure bottle based on the reflected light resulting from each of the two or more FBGs.
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公开(公告)号：US20210318116A1
公开(公告)日：2021-10-14
申请号：US17071301
申请日：2020-10-15
Applicant: Massachusetts Institute of Technology
Inventor： Edward Adelson , Branden Romero , Filipe Fernandes Veiga
Abstract: A retrographic sensor includes a transparent structure, a transparent elastomeric pad, and an at least partially reflective layer. One or more light sources emit light into a side surface of the transparent structure. The light undergoes internal reflection in the transparent structure and is reflected toward a camera oriented toward the transparent structure. The at least partially reflective layer may be semi-specular in some embodiments.
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公开(公告)号：US20210310858A1
公开(公告)日：2021-10-07
申请号：US17195544
申请日：2021-03-08
Applicant: NEC Laboratories America, Inc.
Inventor： Ming-Fang HUANG , Ting WANG
Abstract: Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously are employed in smart stadium or other venue applications, such applications including: parking lot security and management; intrusion detection; social sensing; air quality monitoring and early fire detection—among others.
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Patent Agency Ranking
公开(公告)号：US20210299891A1
公开(公告)日：2021-09-30
申请号：US17214559
申请日：2021-03-26
Applicant: Carl Zeiss Industrielle Messtechnik GmbH
Inventor： Philipp Mayinger
Abstract: A tactile and/or optical distance sensor includes a housing, which has at least one elongate portion, a measurement arm, which is arranged in the housing, at least partially extends through the elongate portion and has a tactile and/or an optical probe element at one end, a transducer, which is configured to capture a position of the tactile probe element or a signal of the optical probe element and to generate associated probe element measurement signals, and an advance unit, with which the housing is linearly dis-placeable along an advance direction. A strain sensor is located in the region of the measurement arm extending through the elongate portion or at an adjacent region directly adjoining said region. In addition, a system for measuring the roughness of a surface of a workpiece and a method for calibrating a distance sensor or a system are provided.
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公开(公告)号：US20210278256A1
公开(公告)日：2021-09-09
申请号：US16321449
申请日：2017-07-06
Applicant: Maskinteknik I Oskarshamn AB
Inventor： Urpo Pehkonen , Juha Pehkonen
Abstract: A displacement sensor device (1) comprising a fibre bragg grating sensor (2) and a downshift unit (3). The downshift unit (3) is connected to the fibre bragg grating sensor (2), a first (4) and a second fastening device (5). The first fastening device (4) is connected to the downshift unit (3), and the second fastening device (5) is connected to the fibre bragg grating sensor (2), a container (6) enclosing the fibre bragg grating sensor (2), the downshift unit (3), at least partially the first (4) and the second fastening device (5), and at least partially an optical fibre (7). Furthermore the sensor device (1) comprises at least one fixing component (8). The at least one fixing component (8) is arranged between one of the fastening devices (4, 5) and the container (6).
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公开(公告)号：US20210277172A1
公开(公告)日：2021-09-09
申请号：US17328490
申请日：2021-05-24
Applicant: Lenore DAI , Aditi CHATTOPADHYAY , Elizabeth NOFEN , Jin ZOU , Bonsung KOO
Inventor： Lenore DAI , Aditi CHATTOPADHYAY , Elizabeth NOFEN , Jin ZOU , Bonsung KOO
Abstract: Compositions including a thermosetting polymer network and a mechanophore covalently bonded to the thermosetting polymer network are provided. Substrates including the compositions are provided. In addition, methods of making the compositions and methods of monitoring stress on a substrate comprising the compositions are provided.
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公开(公告)号：US11073436B2
公开(公告)日：2021-07-27
申请号：US16707707
申请日：2019-12-09
Applicant: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. , IHP GmbH Leibniz-Institut für innovative Mikroelektronik
Inventor： Giannino Dziallas , Lars Zimmermann , Tolga Tekin , Ha Duong Ngo
Abstract: A sensor device including a deflectable membrane made of a 2D nanomaterial, a first optical waveguide for guiding light, disposed adjacent to the membrane and extending along the surface of the membrane at least in a first section, as well as a measuring device for measuring, within the first section the influence of the membrane on an evanescent wave range of the light guided along the first optical waveguide. The influence of the membrane on the light guided in the optical waveguide, in particular on the evanescent wave range of the light, can be measured interferometrically by detecting phasing differences or phase shifts. This allows for a force-free readout of the membrane deflection. By using very thin 2D nanomaterials, the membrane can also react to very quick changes in force.
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公开(公告)号：US20210223068A1
公开(公告)日：2021-07-22
申请号：US17224855
申请日：2021-04-07
Applicant: EmpNia Inc.
Inventor： Manojeet Bhattacharya
Abstract: A method and system of compensating for body deformation during image acquisition or external beam treatment includes acquiring image data of a body and peak wavelength data from a plurality of fiber Bragg gratings (FBGs) disposed on the body aligned along a predetermined coordinate system on the body, such as a cartesian coordinate system. The method further comprises detecting effective shifts of the Bragg wavelengths of the FBGs caused by body deformation during image acquisition, and controlling the movement of the body through a cavity in a scanning device and controlling the acquisition of the image data or external beam treatment during body deformation based on the effective shifts of the Bragg wavelengths of the FBGs.
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