RFID-Enabled Angular Position Sensing System

Fink, Patrick W [Inventor]Kennedy, Timothy F [Inventor]Lin, Gregory Y [Inventor]Ngo, Phong H [Inventor]Yang, Si Hui [Inventor]

关键词: POSITION SENSING;    INTEGRATED CIRCUITS;    ELECTRICAL RESISTIVITY;    RADIO WAVES;    FREQUENCIES;    IDENTIFYING;    CYLINDRICAL ANTENNAS;    ANGULAR CORRELATION;    PATENTS;    DATA TRANSMISSION;   

RP-ID  :  US-Patent-9,970,782, US-Patent-Appl-SN-15/080,048

学科分类：工程和技术（综合）

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

An angular position sensing system includes a first support with ring-shaped elements disposed thereon and spaced apart from one another in a curvilinear arrangement. Each ring-shaped element includes an electrically-conductive ring and an RFID integrated circuit electrically coupled to its electrically-conductive ring. A second support has an antenna coupled thereto that defines an electrically-conductive path commensurate in size and shape to at least a portion of the electrically-conductive ring. An interrogator transmits a signal to the antenna wherein electric current is generated along the antenna's electrically-conductive path and electromagnetic energy emanates from the antenna. Any ring-shaped element and its RFID integrated circuit energized by the electromagnetic energy generates in response a data transmission for receipt by the interrogator. A processor coupled to the interrogator derives information related to an angular position of one of the first support and second support using the data transmission.