TY - GEN
T1 - Wireless and batteryless vibration testing of space structures with implanted LSI sensors
AU - Mitsugi, J.
AU - Rajoria, N.
AU - Kawakita, Y.
AU - Ichikawa, H.
N1 - Funding Information:
This research is supported by Ministry of Internal Affairs and Communications, JAPAN/SCOPE #155003007.
Publisher Copyright:
Copyright © (2017) by International Astronautical Federation. All rights reserved.
PY - 2017
Y1 - 2017
N2 - Vibration testing and modal survey of space structures usually afflict labour intensive and delicate sensor attachments and power/signal wire routings not to damage delicate space structures. In this paper, we propose to implant tiny wireless and batteryless sensors to space structures at the time of fabrication to eradicate the power/signal wiring burden for their entire structural lifecycle by providing power to the implanted sensors with radio wave. The vibration data is concurrently collected from multiple sensors as the reflection of radio wave. The mutually interfering reflections are processed in an interrogator to separate the signals to produce a transition matrix. The concurrent and synchronized collection of sensor data is realized by a newly invented wireless access method tailored to low functional sensors, referred to as Multiple Subcarrier Multiple Access (MSMA). In this paper, we outline the theory and challenges of MSMA and report the state of art of the development with experimental results.
AB - Vibration testing and modal survey of space structures usually afflict labour intensive and delicate sensor attachments and power/signal wire routings not to damage delicate space structures. In this paper, we propose to implant tiny wireless and batteryless sensors to space structures at the time of fabrication to eradicate the power/signal wiring burden for their entire structural lifecycle by providing power to the implanted sensors with radio wave. The vibration data is concurrently collected from multiple sensors as the reflection of radio wave. The mutually interfering reflections are processed in an interrogator to separate the signals to produce a transition matrix. The concurrent and synchronized collection of sensor data is realized by a newly invented wireless access method tailored to low functional sensors, referred to as Multiple Subcarrier Multiple Access (MSMA). In this paper, we outline the theory and challenges of MSMA and report the state of art of the development with experimental results.
KW - Modal survey
KW - Passive backscatter
KW - Software defined radio
KW - Vibration testing
KW - Wireless sensor
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M3 - Conference contribution
AN - SCOPUS:85051370131
SN - 9781510855373
T3 - Proceedings of the International Astronautical Congress, IAC
SP - 7669
EP - 7676
BT - 68th International Astronautical Congress, IAC 2017
PB - International Astronautical Federation, IAF
T2 - 68th International Astronautical Congress: Unlocking Imagination, Fostering Innovation and Strengthening Security, IAC 2017
Y2 - 25 September 2017 through 29 September 2017
ER -