期刊
IEEE SENSORS JOURNAL
卷 15, 期 11, 页码 6229-6237出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2015.2449304
关键词
Astronaut injury; pressure sensing; space suit; wearable technology; soft sensors
资金
- Johnson Space Center through the National Aeronautics and Space Administration [NNX12AC09G]
- National Science Foundation Graduate Research Fellowship Program
- MIT Portugal Program
- Wyss Institute for Biologically Inspired Engineering
Working inside the space suit causes injury and discomfort, but suit assessment techniques such as measuring joint torques and ranges of motion fail to evaluate injury because they fail to distinguish interactions between the human and the space suit. Contact pressure sensing would allow a quantitative assessment of the nature and location of suit-body contact where injuries occur. However, commercially available systems are not well suited for measurement inside the confined environment of the space suit during movement. We report on the design of a wearable pressure sensing system, the Polipo. The Polipo dynamically measures between 5 and 60 kPa of pressure with similar to 1 kPa sensitivity, is within 10% root mean square error from a known loading profile during dynamic movement, and is a standalone system able to accommodate a 50th percentile female to a 95th percentile male upper body dimensions with near shirt-sleeve mobility. This paper focuses on the upper body, but the methods may be extended to the full body as future work. It provides a pressure sensing system that could be applied beyond the field of aerospace to assess human-garment interactions, for example recommending armor protection for defense applications or to alleviate fall impacts for medical applications.
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