TY - JOUR
T1 - A study on a highly sensitive strain sensor based on rayleigh wave
AU - Lee, Ki Jung
AU - Jo, Minuk
AU - Fu, Chen
AU - Eun, Kyoungtae
AU - Oh, Haekwan
AU - Choa, Sung Hoon
AU - Yang, Sang Sik
PY - 2014/4
Y1 - 2014/4
N2 - Piezoresistive-type, capacitive-type, and optical-type sensors have mainly been used for measuring a strain. However, in building a sensor network for remote monitoring using these conventional sensors there are disadvantages such as the complexity of a measuring system including wireless communication circuitry and high cost. In this paper, we demonstrates a highly-sensitive surface acoustic wave (SAW) strain sensor which is advantageous to harsh environments and wireless network. We designed and fabricated the SAW strain sensor. The SAW strain sensor attached on a specimen was tested with a tensile tester. The strain on the sensor surface was measured with a commercial strain gauge and compared with that obtained from strain analysis. The central frequency shift of the SAW sensor was measured with a network analyzer. The sensitivity of the SAW strain sensor is 134 Hz/μe which is high compared to previous results.
AB - Piezoresistive-type, capacitive-type, and optical-type sensors have mainly been used for measuring a strain. However, in building a sensor network for remote monitoring using these conventional sensors there are disadvantages such as the complexity of a measuring system including wireless communication circuitry and high cost. In this paper, we demonstrates a highly-sensitive surface acoustic wave (SAW) strain sensor which is advantageous to harsh environments and wireless network. We designed and fabricated the SAW strain sensor. The SAW strain sensor attached on a specimen was tested with a tensile tester. The strain on the sensor surface was measured with a commercial strain gauge and compared with that obtained from strain analysis. The central frequency shift of the SAW sensor was measured with a network analyzer. The sensitivity of the SAW strain sensor is 134 Hz/μe which is high compared to previous results.
KW - Finite element method
KW - Strain sensor
KW - Surface acoustic wave
UR - https://www.scopus.com/pages/publications/84899481807
U2 - 10.5370/KIEE.2014.63.4.495
DO - 10.5370/KIEE.2014.63.4.495
M3 - Article
AN - SCOPUS:84899481807
SN - 1975-8359
VL - 63
SP - 495
EP - 501
JO - Transactions of the Korean Institute of Electrical Engineers
JF - Transactions of the Korean Institute of Electrical Engineers
IS - 4
ER -