MW-PPG Sensor: An on-Chip Spectrometer Approach
Multi-wavelength photoplethysmography (MW-PPG) sensing technology has been known to be superior to signal-wavelength photoplethysmography (SW-PPG) sensing technology. However, limited by the availability of sensing detectors, many prior studies can only use conventional bulky and pricy spectrometers...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/17/3698 |
| _version_ | 1811185171363266560 |
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| author | Cheng-Chun Chang Chien-Ta Wu Byung Il Choi Tong-Jing Fang |
| author_facet | Cheng-Chun Chang Chien-Ta Wu Byung Il Choi Tong-Jing Fang |
| author_sort | Cheng-Chun Chang |
| collection | DOAJ |
| description | Multi-wavelength photoplethysmography (MW-PPG) sensing technology has been known to be superior to signal-wavelength photoplethysmography (SW-PPG) sensing technology. However, limited by the availability of sensing detectors, many prior studies can only use conventional bulky and pricy spectrometers as the detectors, and hence cannot bring the MW-PPG technology to daily-life applications. In this study we developed a chip-scale MW-PPG sensor using innovative on-chip spectrometers, aimed at wearable applications. Also in this paper we present signal processing methods for robustly extracting the PPG signals, in which an increase of up to 50% in the signal-to-noise ratio (S/N) was observed. Example measurements of saturation of peripheral blood oxygen (SpO<sub>2</sub>) and blood pressure were conducted. |
| first_indexed | 2024-04-11T13:25:58Z |
| format | Article |
| id | doaj.art-aebba463251d4684ac286ee335acd885 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T13:25:58Z |
| publishDate | 2019-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-aebba463251d4684ac286ee335acd8852022-12-22T04:22:05ZengMDPI AGSensors1424-82202019-08-011917369810.3390/s19173698s19173698MW-PPG Sensor: An on-Chip Spectrometer ApproachCheng-Chun Chang0Chien-Ta Wu1Byung Il Choi2Tong-Jing Fang3Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, TaiwanDepartment of Electrical Engineering, National Taipei University of Technology, Taipei 10608, TaiwannanoLambda Co. Ltd., Daejeon 34141, KoreaDepartment of Physiology and Biophysics, Graduate Institute of Physiology National Defense Medical Center, Taipei 11490, TaiwanMulti-wavelength photoplethysmography (MW-PPG) sensing technology has been known to be superior to signal-wavelength photoplethysmography (SW-PPG) sensing technology. However, limited by the availability of sensing detectors, many prior studies can only use conventional bulky and pricy spectrometers as the detectors, and hence cannot bring the MW-PPG technology to daily-life applications. In this study we developed a chip-scale MW-PPG sensor using innovative on-chip spectrometers, aimed at wearable applications. Also in this paper we present signal processing methods for robustly extracting the PPG signals, in which an increase of up to 50% in the signal-to-noise ratio (S/N) was observed. Example measurements of saturation of peripheral blood oxygen (SpO<sub>2</sub>) and blood pressure were conducted.https://www.mdpi.com/1424-8220/19/17/3698multi-wavelengthsMW-PPGon-chip spectrometers |
| spellingShingle | Cheng-Chun Chang Chien-Ta Wu Byung Il Choi Tong-Jing Fang MW-PPG Sensor: An on-Chip Spectrometer Approach Sensors multi-wavelengths MW-PPG on-chip spectrometers |
| title | MW-PPG Sensor: An on-Chip Spectrometer Approach |
| title_full | MW-PPG Sensor: An on-Chip Spectrometer Approach |
| title_fullStr | MW-PPG Sensor: An on-Chip Spectrometer Approach |
| title_full_unstemmed | MW-PPG Sensor: An on-Chip Spectrometer Approach |
| title_short | MW-PPG Sensor: An on-Chip Spectrometer Approach |
| title_sort | mw ppg sensor an on chip spectrometer approach |
| topic | multi-wavelengths MW-PPG on-chip spectrometers |
| url | https://www.mdpi.com/1424-8220/19/17/3698 |
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