FM demodulation system for quartz MEMS magnetometer
LD Sorenson, H Nguyen, R Perahia… - US Patent …, 2019 - Google Patents
(57) ABSTRACT A magnetometer system has a magnetometer, an interface circuit and an
electronic demodulator, the interface circuit being coupled to sense electrodes disposed on …
electronic demodulator, the interface circuit being coupled to sense electrodes disposed on …
Electro-acoustic sensors for remote monitoring
IRS Makin, H Jabs, LJ Radziemski - US Patent 10,295,500, 2019 - Google Patents
Ultrasonic transmitting elements in an electroacoustical transceiver transmit acoustic energy
to an electroacoustical transponder, which includes ultrasonic receiving elements to convert …
to an electroacoustical transponder, which includes ultrasonic receiving elements to convert …
Quartz magnetometer having a quartz resonant plate with a broaden distal end for enhanced magnetic sensitivity
H Nguyen, LD Sorenson, R Perahia… - US Patent …, 2018 - Google Patents
A resonator and/or a magnetometer has a resonating structure which is naturally resonant in
at least one resonant mode, the resonating structure being significantly wider at a free end …
at least one resonant mode, the resonating structure being significantly wider at a free end …
Piezoelectric magnetometer capable of sensing a magnetic field in multiple vectors
H Nguyen, LD Sorenson, R Perahia… - US Patent …, 2018 - Google Patents
A magnetometer comprising a resonating structure which is naturally resonant in at least
three resonant modes, a resonant frequency of the three modes being sufficiently separated …
three resonant modes, a resonant frequency of the three modes being sufficiently separated …
Micro-scale piezoelectric resonating magnetometer
H Nguyen, LD Sorenson, DT Chang, R Perahia… - US Patent …, 2018 - Google Patents
A magnetometer has a resonating structure which is naturally resonant in at least first and
second resonant modes, a resonant frequency of the second mode being at least an order of …
second resonant modes, a resonant frequency of the second mode being at least an order of …
Electro-acoustic sensors
IRS Makin, H Jabs, LJ Radziemski - US Patent 9,764,606, 2017 - Google Patents
Ultrasonic transmitting elements in an electroacoustical transceiver transmit acoustic energy
to an electroacoustical transponder, which includes ultrasonic receiving elements to convert …
to an electroacoustical transponder, which includes ultrasonic receiving elements to convert …
Power generator having a multiple-degree-of-freedom vibration system and a power generating element attached to the vibration system while converting vibration …
K Hasegawa, H Kurikuma, A Muramatsu… - US Patent …, 2017 - Google Patents
A power generator including: a vibration system configured to be attached to a vibrating
member; and a power generating element attached to the vibration system. The vibration …
member; and a power generating element attached to the vibration system. The vibration …
Energy harvesting devices and sensors, and methods of making and use thereof
Disclosed herein are energy harvesting devices and sensors, and methods of making and
use thereof. The energy harvesting devices can comprise a membrane disposed on a …
use thereof. The energy harvesting devices can comprise a membrane disposed on a …
Microelectromechanical systems (MEMS) inertial sensors with energy harvesters and related methods
X Zhang - US Patent 10,761,108, 2020 - Google Patents
A microelectromechanical system (MEMS) apparatus is described. The MEMS apparatus
may comprise inertial sensors and energy harvesters configured to convert mechanical …
may comprise inertial sensors and energy harvesters configured to convert mechanical …