Abstract
In this work, we propose a one-dimensional (1D) Helmholtz resonator (HR) array that can be used to measure the molar ratio of a 1-propanol solution. This 1D HR array is made from aluminum and is immersed in the 1-propanol solution to measure its molar ratio. The transmission spectra of the 1D HR array show two dips, which are caused by the local resonance effect. Molar ratio sensing is achieved by monitoring the frequency shifts of these transmission dips. The experimental and theoretical results show that our structure has both high sensitivity and a high extinction ratio. The measured sensitivities of the high- and low-frequency modes are approximately 1757 and 428 kHz/molar ratio unit, respectively. The measured extinction ratio is approximately 20 dB. Additionally, we show that a Fabry–Pérot-like resonance results in a reduction in the extinction ratio. This phenomenon can be avoided by appropriate selection of the substrate thickness.
| Original language | English |
|---|---|
| Pages (from-to) | 509-517 |
| Number of pages | 9 |
| Journal | Applied Physics A: Materials Science and Processing |
| Volume | 120 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2015 Aug 25 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Science(all)
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Liquid sensor composed of one-dimensional sonic Helmholtz resonator array. / Lu, Jyun Hong; Cai, Dong Po; Hsieh, Cheng Yi; Hsiao, Fu Li; Chen, Chii Chang.
In: Applied Physics A: Materials Science and Processing, Vol. 120, No. 2, 25.08.2015, p. 509-517.Research output: Contribution to journal › Article
TY - JOUR
T1 - Liquid sensor composed of one-dimensional sonic Helmholtz resonator array
AU - Lu, Jyun Hong
AU - Cai, Dong Po
AU - Hsieh, Cheng Yi
AU - Hsiao, Fu Li
AU - Chen, Chii Chang
PY - 2015/8/25
Y1 - 2015/8/25
N2 - In this work, we propose a one-dimensional (1D) Helmholtz resonator (HR) array that can be used to measure the molar ratio of a 1-propanol solution. This 1D HR array is made from aluminum and is immersed in the 1-propanol solution to measure its molar ratio. The transmission spectra of the 1D HR array show two dips, which are caused by the local resonance effect. Molar ratio sensing is achieved by monitoring the frequency shifts of these transmission dips. The experimental and theoretical results show that our structure has both high sensitivity and a high extinction ratio. The measured sensitivities of the high- and low-frequency modes are approximately 1757 and 428 kHz/molar ratio unit, respectively. The measured extinction ratio is approximately 20 dB. Additionally, we show that a Fabry–Pérot-like resonance results in a reduction in the extinction ratio. This phenomenon can be avoided by appropriate selection of the substrate thickness.
AB - In this work, we propose a one-dimensional (1D) Helmholtz resonator (HR) array that can be used to measure the molar ratio of a 1-propanol solution. This 1D HR array is made from aluminum and is immersed in the 1-propanol solution to measure its molar ratio. The transmission spectra of the 1D HR array show two dips, which are caused by the local resonance effect. Molar ratio sensing is achieved by monitoring the frequency shifts of these transmission dips. The experimental and theoretical results show that our structure has both high sensitivity and a high extinction ratio. The measured sensitivities of the high- and low-frequency modes are approximately 1757 and 428 kHz/molar ratio unit, respectively. The measured extinction ratio is approximately 20 dB. Additionally, we show that a Fabry–Pérot-like resonance results in a reduction in the extinction ratio. This phenomenon can be avoided by appropriate selection of the substrate thickness.
UR - http://www.scopus.com/inward/record.url?scp=84937973574&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84937973574&partnerID=8YFLogxK
U2 - 10.1007/s00339-015-9203-3
DO - 10.1007/s00339-015-9203-3
M3 - Article
AN - SCOPUS:84937973574
VL - 120
SP - 509
EP - 517
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
SN - 0947-8396
IS - 2
ER -