Experimental Investigation on the Dynamic Response of Thermal EG-CNT Flow Sensors | |
Qu YL(曲艳丽)![]() ![]() ![]() | |
Department | 机器人学研究室 |
Conference Name | 4th IEEE International Conference of Nano/Micro Engineered and Molecular Systems |
Conference Date | January 5-8, 2009 |
Conference Place | Shenzhen, China |
Author of Source | IEEE |
Source Publication | 2009 4TH IEEE INTERNATIONAL CONFERENCE ON NANO/MICRO ENGINEERED AND MOLECULAR SYSTEMS, VOLS 1 AND 2 |
Publisher | IEEE |
Publication Place | NEW YORK |
2009 | |
Pages | 813-817 |
Indexed By | EI ; CPCI(ISTP) |
EI Accession number | 20094212372699 |
WOS ID | WOS:000273161500189 |
Contribution Rank | 1 |
ISBN | 978-1-4244-4629-2 |
Keyword | Aqueous Flow Sensor Carbon Nanotubes Heat Dissipation Ultra-low-power Sensor Thermal Effect |
Abstract | Features of the I-V characteristics and the electrical properties of electronics-grade carbon nanotube (EG-CNT) sensors, which were fabricated and integrated in micro fluidic system by combining MEMS-compatible fabrication technology with AC dielectrophoresis technique, were investigated at room temperature to account for significant Joule heating effect under high activation current. The experimental results together with the traditional heat transfer theory indicate that the nonlinearity of the I-V curves and the negative resistance change of the EG-CNT sensors are basically induced and controlled by the thermal effect. In particular, it was found that the lower the original resistance of EG-CNT sensors, the higher the normalized resistance change and lower the sensor's time response. Then, the sensor's capability for aqueous flow detection was exploited upon exposure to DI-water flow in micro fluidic system. The operation power of the sensors was found to be extremely low, i.e., in the range of mu W. Furthermore, higher activation power may degrade the sensor's responsivity. |
Language | 英语 |
Citation statistics | |
Document Type | 会议论文 |
Identifier | http://ir.sia.cn/handle/173321/8698 |
Collection | 机器人学研究室 |
Affiliation | 1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China 2.Centre for Micro and Nano Systems, Chinese University of Hong Kong, Hong Kong, Hong Kong 3.Department of Mechanical Engineering, University of Arkansas, United States |
Recommended Citation GB/T 7714 | Qu YL,Dong ZL,Tung, Steve C. H.,et al. Experimental Investigation on the Dynamic Response of Thermal EG-CNT Flow Sensors[C]//IEEE. NEW YORK:IEEE,2009:813-817. |
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HYQW000564.pdf(10620KB) | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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