ST. JUDE MEDICAL LUXEMBOURG HOLDINGS II S.A.R.L. (“SJM LUX II”)
发明人:
Jin Woo Park,Florent Cros,Mark G. Allen
申请号：
US14718743
公开号：
US09653926B2
申请日:
2015.05.21
申请国别(地区):
US
年份:
2017
代理人:
摘要：
Wireless sensors configured to sense, record and transmit data are provided herein. In one aspect, the wireless sensor has a power harvesting unit； a transducing A-to-D converter unit, a microcontroller unit, and a transmitting coil. The power harvesting unit is configured to receive an external energizing magnetic field generated by an external interrogator and store the energy generated thereby. The transducing A-to-D converter unit has a passive electrical transducer configured to respond to variations in a physical property and a converter configured to measure a characteristic value of the passive electrical transducer and provide a digital signal that is indicative of the measured characteristic value. The microcontroller unit is electrically coupled to the power harvesting unit and the transducing A-to-D converter unit and is configured to receive the digital signal from the transducing A-to-D converter unit. The transmitting coil is configured to receive the digital signal and to transmit the digital signal to the external interrogator. Upon receiving a start signal, the transducing A-to-D converter unit charges a current through the passive electrical transducer until a reference voltage is reached and, upon reaching the reference voltage, the microcontroller unit receives the digital signal.
