Highly Sensitive and Wide-Dynamic-Range Multichannel Optical-Fiber pHSensor Based on PWM Technique

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Khan, Md. Rajibur Rahaman; Kang, Shin-Won;
  • Publisher: MDPI AG
  • Journal: volume 16,issue 11issn: 1424-8220, eissn: 1424-8220
  • Publisher copyright policies & self-archiving
  • Related identifiers: pmc: PMC5134544, doi: 10.3390/s16111885
  • Subject: pH sensor | side-polished optical-fiber | sensing membrane | TP1-1185 | pH | Chemical technology | Article | optical-fiber pulse width modulation | pH; pH sensor; side-polished optical-fiber; sensing element; optical-fiber pulse width modulation; sensing membrane | sensing element

In this study, we propose a highly sensitive multichannel pH sensor that is based on an optical-fiber pulse width modulation (PWM) technique. According to the optical-fiber PWM method, the received sensing signal's pulse width changes when the optical-fiber pH sensing-e... View more
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