公开(公告)号：US20170102263A1

公开(公告)日：2017-04-13

申请号：US15288843

申请日：2016-10-07

Applicant: THE CHARLES STARK DRAPER LABORATORY, INC. ,  NORTHEASTERN UNIVERSITY

Inventor： Jonathan J. Bernstein ,  Marc S. Weinberg ,  Amy Duwel ,  Paul A. Ward ,  Nicol E. McGruer ,  Matteo Rinaldi ,  Eugene H. Cook

IPC: G01H13/00 ,  H01H9/54

CPC classification number: G01P15/135 ,  H01H1/0036 ,  H01H35/144 ,  H01H2001/0063 ,  H01H2001/0078 ,  H01H2001/0084

Abstract: An environmental physical sensor is provided that includes a power input terminal, a sensor output terminal, and a resonant switch. The resonant switch includes a mechanical element that is responsive to an environmental stimulus and is coupled to an electrical switch. The electrical switch is operable between an open position and a closed position and electrically connects the power input terminal to the sensor output terminal when in the closed position. The mechanical element is configured to intermittently actuate the electrical switch into the closed position responsive to the environmental stimulus.

公开(公告)号：US20160099701A1

公开(公告)日：2016-04-07

申请号：US14969948

申请日：2015-12-15

Applicant: Northeastern University

Inventor： Matteo Rinaldi ,  Cristian Cassella ,  Zhenyun Qian ,  Yu Hui

IPC: H03H9/02 ,  G01J5/58 ,  G01J5/20 ,  H03H9/13 ,  H03H9/15

CPC classification number: H03H9/02244 ,  G01J3/42 ,  G01J5/046 ,  G01J5/20 ,  G01J5/44 ,  G01J5/58 ,  H01L41/18 ,  H03H3/02 ,  H03H9/13 ,  H03H9/15 ,  H03H9/17 ,  H03H9/2463 ,  H03H2003/027 ,  H03H2009/02503 ,  H03H2009/155 ,  H03H2009/241

Abstract: A resonator includes a piezoelectric plate and interdigitated electrode(s). The interdigitated electrode includes a plurality of conductive strips disposed over a top surface of the piezoelectric plate. A two-dimensional mode of mechanical vibration is excited in a cross sectional plane of the piezoelectric plate in response to an alternating voltage applied through the interdigitated electrode. The two-dimensional mode of mechanical vibration is a cross-sectional Lamé mode resonance (CLMR) or a degenerate cross-sectional Lamé mode resonance (dCLMR).

Abstract translation: 谐振器包括压电板和交错电极。 交叉电极包括设置在压电板的顶表面上的多个导电条。 响应于通过交叉电极施加的交流电压，在压电板的横截面中激发二维机械振动模式。 机械振动的二维模式是横截面Lamé模式共振（CLMR）或简并横截面Lamé模式共振（dCLMR）。

公开(公告)号：US20160065169A1

公开(公告)日：2016-03-03

申请号：US14784876

申请日：2014-04-22

Applicant: NORTHEASTERN UNIVERSITY

Inventor： Matteo Rinaldi ,  Zhenyun Qian ,  Yu Hui

IPC: H03H9/02 ,  H01L41/18 ,  G01J5/04 ,  H03H9/15 ,  G01J5/44 ,  H03H9/13 ,  H03H3/02

CPC classification number: H03H9/02244 ,  G01J5/046 ,  G01J5/44 ,  H01L41/18 ,  H01L41/1873 ,  H03H3/02 ,  H03H9/13 ,  H03H9/15 ,  H03H9/17 ,  H03H9/19 ,  H03H2003/027 ,  H03H2009/155 ,  H03H2009/241

Abstract: A resonator including a piezoelectric plate and an interdigital electrode is provided. A ratio between a thickness of the plate and a pitch of the interdigital electrode may be from about 0.5 to about 1.5. A radiation detector including a resonator and an absorber layer capable of absorbing at least one of infrared and terahertz radiation is provided. A resonator including a piezoelectric plate and a two-dimensional electrically conductive material is provided.

Abstract translation: 提供一种包括压电板和指状电极的谐振器。 板的厚度和叉指电极的间距之间的比可以为约0.5至约1.5。 提供了包括谐振器和能够吸收红外和太赫兹辐射中的至少一种的吸收层的辐射检测器。 提供了包括压电板和二维导电材料的谐振器。

公开(公告)号：US20160003924A1

公开(公告)日：2016-01-07

申请号：US14771460

申请日：2014-03-06

Applicant: Matteo RINALDI ,  Nian-Xiang SUN ,  Tianxiang NAN ,  Yu HUI ,  NORTHEASTERN UNIVERSITY

Inventor： Nian-Xiang Sun ,  Matteo Rinaldi ,  Tianxiang Nan ,  Yu Hui

IPC: G01R33/28 ,  G01R33/00

CPC classification number: G01R33/28 ,  G01R33/0052 ,  G01R33/093

Abstract: This disclosure provides systems, methods, and apparatus for detecting magnetic fields. A magnetic sensor can include a substantially planar magnetostrictive layer. A piezoelectric layer can be bonded to a lower surface of the magnetostrictive layer. An electrode layer can be bonded to a lower surface of the piezoelectric layer. The device can be configured such that, when exposed to a magnetic field, at least one of an admittance amplitude, a quality factor, and a resonant frequency of the device is altered. The device can have a resonant frequency in the range of about 1 MHz to about 100 GHz.

Abstract translation: 本公开提供了用于检测磁场的系统，方法和装置。 磁传感器可以包括基本上平面的磁致伸缩层。 压电层可以结合到磁致伸缩层的下表面。 电极层可以结合到压电层的下表面。 该装置可以被配置为使得当暴露于磁场时，改变装置的导纳幅度，品质因数和谐振频率中的至少一个。 该装置可以具有约1MHz至约100GHz范围内的谐振频率。

公开(公告)号：US11761825B2

公开(公告)日：2023-09-19

申请号：US17226182

申请日：2021-04-09

Applicant: Northeastern University

Inventor： Cristian Cassella ,  Hussein Hussein ,  Matteo Rinaldi

IPC: G01K7/22 ,  H04B5/00 ,  G01K7/34 ,  G01K1/024

CPC classification number: G01K7/22 ,  G01K7/34 ,  H04B5/0031 ,  H04B5/0062 ,  G01K1/024

Abstract: A sensing device is provided having sensing circuitry, connected to an input port and the output port, with a sensor having an impedance sensitive to a parameter of interest, one or more passive electrical components, and a variable capacitor. The sensing circuitry is triggered to generate an output signal for transmission from the output port, the output signal dependent on the parameter of interest sensed by the sensor and on an input power value, Pin, of an input signal received at the input port being greater than a parametric threshold power value, Pth. A sensing system includes the sensing device and a transmitting device to transmit the input signal to the sensing device at a frequency representative of the parameter of interest. A receiving device, which can be incorporated with or located remotely from the transmitting device, receives the output signal of the sensing device, which has a frequency that is half of the frequency of the input signal transmitted by the transmitting device.

公开(公告)号：US10345332B2

公开(公告)日：2019-07-09

申请号：US15288843

申请日：2016-10-07

Applicant: THE CHARLES STARK DRAPER LABORATORY, INC. ,  NORTHEASTERN UNIVERSITY

Inventor： Jonathan J. Bernstein ,  Marc S. Weinberg ,  Amy Duwel ,  Paul A. Ward ,  Nicol E. McGruer ,  Matteo Rinaldi ,  Eugene H. Cook

IPC: G01P15/135 ,  H01H1/00 ,  H01H35/14

Abstract: An environmental physical sensor is provided that includes a power input terminal, a sensor output terminal, and a resonant switch. The resonant switch includes a mechanical element that is responsive to an environmental stimulus and is coupled to an electrical switch. The electrical switch is operable between an open position and a closed position and electrically connects the power input terminal to the sensor output terminal when in the closed position. The mechanical element is configured to intermittently actuate the electrical switch into the closed position responsive to the environmental stimulus.

公开(公告)号：US09954512B2

公开(公告)日：2018-04-24

申请号：US15646890

申请日：2017-07-11

Applicant: Northeastern University

Inventor： Matteo Rinaldi ,  Zhenyun Qian ,  Yu Hui

IPC: H03H9/02 ,  H03H3/02 ,  H03H9/13 ,  H01L41/18 ,  H03H9/19 ,  H01L41/187 ,  G01J5/44

CPC classification number: H03H9/02244 ,  G01J5/046 ,  G01J5/44 ,  H01L41/18 ,  H01L41/1873 ,  H03H3/02 ,  H03H9/13 ,  H03H9/15 ,  H03H9/17 ,  H03H9/19 ,  H03H2003/027 ,  H03H2009/155 ,  H03H2009/241

Abstract: A resonator including a piezoelectric plate and an interdigital electrode is provided. A ratio between a thickness of the plate and a pitch of the interdigital electrode may be from about 0.5 to about 1.5. A radiation detector including a resonator and an absorber layer capable of absorbing at least one of infrared and terahertz radiation is provided. A resonator including a piezoelectric plate and a two-dimensional electrically conductive material is provided.

公开(公告)号：US09935608B1

公开(公告)日：2018-04-03

申请号：US15652954

申请日：2017-07-18

Applicant: Northeastern University

Inventor： Matteo Rinaldi ,  Cristian Cassella ,  Zhenyun Qian ,  Yu Hui

IPC: H03H9/02 ,  H03H3/02 ,  G01J5/44 ,  G01J5/04 ,  H03H9/17 ,  H01L41/18 ,  H03H9/13 ,  H03H9/15 ,  H03H9/24

CPC classification number: H03H9/02244 ,  G01J3/42 ,  G01J5/046 ,  G01J5/20 ,  G01J5/44 ,  G01J5/58 ,  H01L41/18 ,  H03H3/02 ,  H03H9/13 ,  H03H9/15 ,  H03H9/17 ,  H03H9/2463 ,  H03H2003/027 ,  H03H2009/02503 ,  H03H2009/155 ,  H03H2009/241

Abstract: A resonator includes a piezoelectric plate and interdigitated electrode(s). The interdigitated electrode includes a plurality of conductive strips disposed over a top surface of the piezoelectric plate. A two-dimensional mode of mechanical vibration is excited in a cross sectional plane of the piezoelectric plate in response to an alternating voltage applied through the interdigitated electrode. The two-dimensional mode of mechanical vibration is a cross-sectional Lamé mode resonance (CLMR) or a degenerate cross-sectional Lamé mode resonance (dCLMR).

公开(公告)号：US09787340B2

公开(公告)日：2017-10-10

申请号：US15290972

申请日：2016-10-11

Applicant: Northeastern University ,  The Charles Stark Draper Laboratory, Inc.

Inventor： Matteo Rinaldi ,  Nicol McGruer ,  Amy Duwel ,  Marc S. Weinberg ,  Robert Egri ,  Cristian Cassella

IPC: H04B1/18 ,  H01H59/00 ,  H01L41/04 ,  H01L41/107 ,  H01L41/047

CPC classification number: H04B1/18 ,  H01H59/0009 ,  H01L41/0477 ,  H01L41/107

Abstract: A zero power radio frequency (RF) activated wake up device is provided. The device is based on a high-Q MEMS demodulator that filters an amplitude-modulated RF tone of interest from the entire spectrum while producing a much higher voltage signal suitable to trigger a high-Q MEMS resonant switch tuned to the modulation frequency of the RF tone.

公开(公告)号：US09419583B2

公开(公告)日：2016-08-16

申请号：US14969948

申请日：2015-12-15

Applicant: Northeastern University

Inventor： Matteo Rinaldi ,  Cristian Cassella ,  Zhenyun Qian ,  Yu Hui

IPC: H03H9/02 ,  H03H9/13 ,  H03H9/15 ,  G01J5/20 ,  G01J5/58

CPC classification number: H03H9/02244 ,  G01J3/42 ,  G01J5/046 ,  G01J5/20 ,  G01J5/44 ,  G01J5/58 ,  H01L41/18 ,  H03H3/02 ,  H03H9/13 ,  H03H9/15 ,  H03H9/17 ,  H03H9/2463 ,  H03H2003/027 ,  H03H2009/02503 ,  H03H2009/155 ,  H03H2009/241

Abstract: A resonator includes a piezoelectric plate and interdigitated electrode(s). The interdigitated electrode includes a plurality of conductive strips disposed over a top surface of the piezoelectric plate. A two-dimensional mode of mechanical vibration is excited in a cross sectional plane of the piezoelectric plate in response to an alternating voltage applied through the interdigitated electrode. The two-dimensional mode of mechanical vibration is a cross-sectional Lamé mode resonance (CLMR) or a degenerate cross-sectional Lamé mode resonance (dCLMR).

Abstract translation: 谐振器包括压电板和交错电极。 交叉电极包括设置在压电板的顶表面上的多个导电条。 响应于通过交叉电极施加的交流电压，在压电板的横截面中激发机械振动的二维模式。 机械振动的二维模式是横截面Lamé模式共振（CLMR）或简并横截面Lamé模式共振（dCLMR）。