4.6 Article

Design and testing of a capacitive interface for underwater stretch sensors

期刊

SMART MATERIALS AND STRUCTURES
卷 31, 期 12, 页码 -

出版社

IOP Publishing Ltd
DOI: 10.1088/1361-665X/ac9f8d

关键词

strain sensing; underwater strain sensor; dielectric elastomer sensors; wearable sensor networks

资金

  1. Office for Naval Research Naval International Cooperative Opportunities in Science and Technology
  2. [N00014-21-1-2413]

向作者/读者索取更多资源

The growing popularity of wearable electronics has led to extensive research in soft and flexible strain sensors. This paper introduces a wireless method to connect wearable strain sensors to electronics and investigates its impact on sensor sensitivity and measurement methods.
The growing popularity of wearable electronics has seen substantial research in soft and flexible strain sensors. From athletic performance analysis to human augmentation, there is a wide range of applications being developed. An area often overlooked is the connections between a network of wearable sensors and their measurement electronics. In dry applications this is as simple as cabling between the two. In underwater environments however this becomes more complicated. Capacitive strain sensors have been used to demonstrate underwater sensor-based motion capture in both a robotic fish and smart glove for divers. Wired connections introduced failure points and eliminated the modularity of the system for potted electronics. In this paper we have demonstrated the use of a capacitive interface as a wireless method to connect wearable strain sensors across an encapsulation to electronics. This removes the need to have wires permanently protruding through the encapsulation. The interfaces' impact on strain sensor sensitivity and measurement method has been investigated for both resistive and capacitive-based strain sensing.

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