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公开(公告)号：US11843915B2
公开(公告)日：2023-12-12
申请号：US17508133
申请日：2021-10-22
Applicant: Massachusetts Institute of Technology
Inventor： Jinchi Han , Jeffrey H. Lang , Vladimir Bulovic
CPC classification number: H04R17/025 , H04R1/403 , H04R1/406 , H04R3/005 , H04R7/127 , H10N30/084 , H10N30/883 , H04R2400/01
Abstract: An active acoustic system includes a thin-film sheet having an array of piezoelectric microstructures embossed in the film. Each piezoelectric microstructure may act as a speaker and/or a microphone. A control circuit is configured to individually address the piezoelectric microstructures to provide a separate voltage signal to, or receive a separate voltage signal from, each piezoelectric microstructure.
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公开(公告)号：US20210231709A1
公开(公告)日：2021-07-29
申请号：US17112797
申请日：2020-12-04
Inventor： Vivek R. Dave , Felix Loske , Enger Knop , Lutz Tröger , Alan E. Casallas , Jeffrey H. Lang
IPC: G01R15/16 , G01R21/08 , G01R33/02 , G01R21/133 , G01R35/00
Abstract: A multi-sensor, real-time, in-process current and voltage estimation system is disclosed including sensors, affiliated hardware, and data processing algorithms that allow accurate estimation of currents and voltages from magnetic and electric field measurements, respectively. Aspects of the system may be embodied in a detector that is readily attachable to conductors of an energized system for contactless current and/or voltage sensing of the conductors without requiring the conductors to be disconnected from the energized system.
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公开(公告)号：US10475601B2
公开(公告)日：2019-11-12
申请号：US15774642
申请日：2016-11-09
Applicant: Massachusetts Institute of Technology
Inventor： Jeffrey H. Lang , Timothy M. Swager , Vladimir Bulovic , Farnaz Niroui , Ellen Sletten
Abstract: Devices comprising at least two electrodes with a layer disposed therebetween are disclosed. In some embodiments, the layer disposed therebetween may be an insulator. In some embodiments, the layer may be capable of being deformed. Deforming the layer may cause a change in one or more materials properties of the device, such as the electrical properties and/or the optical properties of the device.
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14.发明授权公开(公告)号：US09395317B2
公开(公告)日：2016-07-19
申请号：US14181103
申请日：2014-02-14
Applicant: Massachusetts Institute of Technology
Inventor： Benjamin Louis Cannon , David L. Trumper , Jeffrey H. Lang , Markus Zahn
Abstract: A system and method for providing electromagnetic imaging through electroquasistatic sensing contains an electromagnetic sensor for imaging a sample. The electromagnetic sensor contains drive/sense electronics and a pixelated sensor array having an array of capacitive sensor electrodes that source electric fields that interact with the sample, and wherein the electrodes are individually drivable by the drive/sense electronics in a coordinated manner to establish a desired temporal and spatial pattern in which electrical properties of the electrodes are used to generate an image. Other components of the system include a precision motion controller, sensor head and associated electronics, and a computer for performing data acquisition and signal inversion.
Abstract translation: 通过电气感测提供电磁成像的系统和方法包含用于对样品进行成像的电磁传感器。 电磁传感器包含驱动/感测电子器件和像素化传感器阵列，其具有源于与样品相互作用的电场的电容传感器电极阵列，并且其中电极可以由驱动/感测电子器件以协调的方式单独驱动以建立 期望的时间和空间图案，其中电极的电性质用于产生图像。 该系统的其他部件包括精密运动控制器，传感头和相关的电子设备，以及用于执行数据采集和信号反转的计算机。
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公开(公告)号：US20150357142A1
公开(公告)日：2015-12-10
申请号：US14763681
申请日：2014-01-28
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： Vladimir Bulovic , Jeffrey H. Lang , Hae-Seung Lee , Timothy M. Swager , Trisha L. Andrew , Matthew Eric D'Asaro , Parag Deotare , Apoorva Murarka , Farnaz Niroui , Ellen Sletten , Annie I-Jen Wang
CPC classification number: H01H59/0009 , H01H49/00 , H01L45/00 , Y10T156/10
Abstract: Electromechanical devices described herein may employ tunneling phenomena to function as low-voltage switches. Opposing electrodes may be separated by an elastically deformable layer which, in some cases, may be made up of a non-electrically conductive material. In some embodiments, the elastically deformable layer is substantially free of electrically conductive material. When a sufficient actuation voltage and/or force is applied, the electrodes are brought toward one another and, accordingly, the elastically deformable layer is compressed. Though, the elastically deformable layer prevents the electrodes from making direct contact with one another. Rather, when the electrodes are close enough to one another, a tunneling current arises therebetween. The elastically deformable layer may exhibit spring-like behavior such that, upon release of the actuation voltage and/or force, the separation distance between electrodes is restored. Thus, the electromechanical device may be actuated between open and closed switch positions.
Abstract translation: 本文所述的机电装置可以采用隧道现象作为低压开关。 相反的电极可以由可弹性变形的层隔开，在一些情况下，这些可由非导电材料组成。 在一些实施例中，弹性变形层基本上不含导电材料。 当施加足够的致动电压和/或力时，电极彼此相向，并且因此可弹性变形层被压缩。 尽管可弹性变形层防止电极彼此直接接触。 相反，当电极彼此足够接近时，在其间产生隧穿电流。 可弹性变形层可以呈现类似弹簧的行为，使得在释放致动电压和/或力时，恢复电极之间的间隔距离。 因此，可以在打开和关闭的开关位置之间致动机电装置。
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Patent Agency Ranking
公开(公告)号：US12126324B2
公开(公告)日：2024-10-22
申请号：US18558207
申请日：2022-05-06
Applicant: Massachusetts Institute of Technology
Inventor： David J. Perreault , Jessica Boles , Jeffrey H. Lang , Joseph Bonavia
IPC: H03H9/17
CPC classification number: H03H9/17
Abstract: Described are structures and techniques for providing high-efficiency, high-power-density piezoelectric resonators (PRs) for use in power converters. In some embodiments, a power converter can include a PR for energy transfer, where the PR substantially satisfies geometry conditions disclosed herein for achieving high-efficiency and high-power-density. The geometry conditions can be defined in terms of the converter's specified (e.g., rated) voltage and power level.
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公开(公告)号：US20230280375A1
公开(公告)日：2023-09-07
申请号：US18150032
申请日：2023-01-04
Inventor： Vivek R. Dave , Felix Loske , Enger Knop , Lutz Tröger , Alan E. Casallas , Jeffrey H. Lang
IPC: G01R15/16 , G01R21/08 , G01R35/00 , G01R21/133 , G01R33/02
CPC classification number: G01R15/16 , G01R21/08 , G01R35/005 , G01R21/1331 , G01R33/02
Abstract: A multi-sensor, real-time, in-process current and voltage estimation system is disclosed including sensors, affiliated hardware, and data processing algorithms that allow accurate estimation of currents and voltages from magnetic and electric field measurements, respectively. Aspects of the system may be embodied in a detector that is readily attachable to conductors of an energized system for contactless current and/or voltage sensing of the conductors without requiring the conductors to be disconnected from the energized system.
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公开(公告)号：US10566492B2
公开(公告)日：2020-02-18
申请号：US15781652
申请日：2016-12-07
Applicant: Massachusetts Institute of Technology
Inventor： Farnaz Niroui , Thomas Stephen Mahony , Vladimir Bulovic , Jeffrey H. Lang
Abstract: Light-emitting devices are disclosed. In some embodiments, the devices may emit light when a tunneling current is generated within the device.
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公开(公告)号：US20180374329A1
公开(公告)日：2018-12-27
申请号：US16065520
申请日：2016-12-30
Applicant: Massachusetts Institute of Technology
Inventor： Matthew Eric D'Asaro , Jeffrey H. Lang
IPC: G08B13/26 , G08B21/04 , G08B25/10 , H03K17/955
Abstract: A sensing apparatus includes a transmission line sensor and an electronics module. The transmission line sensor includes a first conductor, a second conductor and a dielectric between the first conductor and the second conductor. The electronics module is configured to transmit a first signal along the transmission line sensor, receive a second signal from the transmission line sensor, and analyze the second signal to determine information regarding deformation of the transmission line sensor caused by a force applied to the transmission line sensor.
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公开(公告)号：US20180330897A1
公开(公告)日：2018-11-15
申请号：US15774642
申请日：2016-11-09
Applicant: Massachusetts Institute of Technology
Inventor： Jeffrey H. Lang , Timothy M. Swager , Vladimir Bulovic , Farnaz Niroui , Ellen Sletten
Abstract: Devices comprising at least two electrodes with a layer disposed therebetween are disclosed. In some embodiments, the layer disposed therebetween may be an insulator. In some embodiments, the layer may be capable of being deformed. Deforming the layer may cause a change in one or more materials properties of the device, such as the electrical properties and/or the optical properties of the device.
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