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Design and fabrication of single-walled carbon nanonet flexible strain sensors.

Huang YT, Huang SC, Hsu CC, Chao RM, Vu TK - Sensors (Basel) (2012)

Bottom Line: All of the micro-fabrication was compatible with the standard IC process.Experimental results indicated that the gauge factor of the proposed strain sensor was larger than 4.5, approximately 2.0 times greater than those of commercial gauges.The results also demonstrated that the gauge factor is small when the growth time of SWCNNs is lengthier, and the gauge factor is large when the line width of the serpentine pattern of SWCNNs is small.

View Article: PubMed Central - PubMed

Affiliation: Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 80778, Taiwan. yating3133@yahoo.com.tw

ABSTRACT
This study presents a novel flexible strain sensor for real-time strain sensing. The material for strain sensing is single-walled carbon nanonets, grown using the alcohol catalytic chemical vapor deposition method, that were encapsulated between two layers of Parylene-C, with a polyimide layer as the sensing surface. All of the micro-fabrication was compatible with the standard IC process. Experimental results indicated that the gauge factor of the proposed strain sensor was larger than 4.5, approximately 2.0 times greater than those of commercial gauges. The results also demonstrated that the gauge factor is small when the growth time of SWCNNs is lengthier, and the gauge factor is large when the line width of the serpentine pattern of SWCNNs is small.

No MeSH data available.


Related in: MedlinePlus

The photo of the tensile testing system.
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f7-sensors-12-03269: The photo of the tensile testing system.

Mentions: The plate was then attached to a commercial metallic foil strain sensor (KYOWA Electronic Instruments Co., LTD). A strain amplifier (KYOWA, model DPM-711B) was used to obtain the output strain signal as voltage (1 V = 5,000 micro-strain) from the commercial metallic foil strain sensor (The voltage input for the metal foil gauge is 3.7 V). The output signal of resistance from the Parylene-based SWCNNs strain sensor was acquired by a data logger system (Keithley, model 2700), the strain of the plate was measured by a 1/4 bridge Wheatstone bridge with a commercial metallic gauge. The tensile testing experiment is shown in Figure 7.


Design and fabrication of single-walled carbon nanonet flexible strain sensors.

Huang YT, Huang SC, Hsu CC, Chao RM, Vu TK - Sensors (Basel) (2012)

The photo of the tensile testing system.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3376622&req=5

f7-sensors-12-03269: The photo of the tensile testing system.
Mentions: The plate was then attached to a commercial metallic foil strain sensor (KYOWA Electronic Instruments Co., LTD). A strain amplifier (KYOWA, model DPM-711B) was used to obtain the output strain signal as voltage (1 V = 5,000 micro-strain) from the commercial metallic foil strain sensor (The voltage input for the metal foil gauge is 3.7 V). The output signal of resistance from the Parylene-based SWCNNs strain sensor was acquired by a data logger system (Keithley, model 2700), the strain of the plate was measured by a 1/4 bridge Wheatstone bridge with a commercial metallic gauge. The tensile testing experiment is shown in Figure 7.

Bottom Line: All of the micro-fabrication was compatible with the standard IC process.Experimental results indicated that the gauge factor of the proposed strain sensor was larger than 4.5, approximately 2.0 times greater than those of commercial gauges.The results also demonstrated that the gauge factor is small when the growth time of SWCNNs is lengthier, and the gauge factor is large when the line width of the serpentine pattern of SWCNNs is small.

View Article: PubMed Central - PubMed

Affiliation: Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 80778, Taiwan. yating3133@yahoo.com.tw

ABSTRACT
This study presents a novel flexible strain sensor for real-time strain sensing. The material for strain sensing is single-walled carbon nanonets, grown using the alcohol catalytic chemical vapor deposition method, that were encapsulated between two layers of Parylene-C, with a polyimide layer as the sensing surface. All of the micro-fabrication was compatible with the standard IC process. Experimental results indicated that the gauge factor of the proposed strain sensor was larger than 4.5, approximately 2.0 times greater than those of commercial gauges. The results also demonstrated that the gauge factor is small when the growth time of SWCNNs is lengthier, and the gauge factor is large when the line width of the serpentine pattern of SWCNNs is small.

No MeSH data available.


Related in: MedlinePlus