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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201701985
|2 doi
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|a pubmed24n0916.xml
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|a (DE-627)NLM275065901
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|a (NLM)28833673
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Gao, Yuji
|e verfasserin
|4 aut
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| 245 |
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|a Wearable Microfluidic Diaphragm Pressure Sensor for Health and Tactile Touch Monitoring
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 22.01.2019
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Flexible pressure sensors have many potential applications in wearable electronics, robotics, health monitoring, and more. In particular, liquid-metal-based sensors are especially promising as they can undergo strains of over 200% without failure. However, current liquid-metal-based strain sensors are incapable of resolving small pressure changes in the few kPa range, making them unsuitable for applications such as heart-rate monitoring, which require a much lower pressure detection resolution. In this paper, a microfluidic tactile diaphragm pressure sensor based on embedded Galinstan microchannels (70 µm width × 70 µm height) capable of resolving sub-50 Pa changes in pressure with sub-100 Pa detection limits and a response time of 90 ms is demonstrated. An embedded equivalent Wheatstone bridge circuit makes the most of tangential and radial strain fields, leading to high sensitivities of a 0.0835 kPa-1 change in output voltage. The Wheatstone bridge also provides temperature self-compensation, allowing for operation in the range of 20-50 °C. As examples of potential applications, a polydimethylsiloxane (PDMS) wristband with an embedded microfluidic diaphragm pressure sensor capable of real-time pulse monitoring and a PDMS glove with multiple embedded sensors to provide comprehensive tactile feedback of a human hand when touching or holding objects are demonstrated
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|a Journal Article
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|a diaphragm pressure sensors
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|a flexible pressure sensors
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|a liquid metal
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|a microfluidics
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|a wearable
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|a Ota, Hiroki
|e verfasserin
|4 aut
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1 |
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|a Schaler, Ethan W
|e verfasserin
|4 aut
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1 |
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|a Chen, Kevin
|e verfasserin
|4 aut
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1 |
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|a Zhao, Allan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Wei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fahad, Hossain M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Leng, Yonggang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zheng, Anzong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xiong, Furui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Chuchu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tai, Li-Chia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Peida
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fearing, Ronald S
|e verfasserin
|4 aut
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| 700 |
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|a Javey, Ali
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 29(2017), 39 vom: 20. Okt.
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:29
|g year:2017
|g number:39
|g day:20
|g month:10
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|u http://dx.doi.org/10.1002/adma.201701985
|3 Volltext
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