A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic Transducers
Bowel sounds contain some important human physiological parameters which can reflect information about intestinal function. In this work, in order to realize real-time monitoring of bowel sounds, a portable and wearable bowel sound electronic monitor based on piezoelectric micromachined ultrasonic t...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/13/12/2221 |
| _version_ | 1797456193858306048 |
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| author | Xiaoxia Ding Zhipeng Wu Mingze Gao Minkan Chen Jiawei Li Tao Wu Liang Lou |
| author_facet | Xiaoxia Ding Zhipeng Wu Mingze Gao Minkan Chen Jiawei Li Tao Wu Liang Lou |
| author_sort | Xiaoxia Ding |
| collection | DOAJ |
| description | Bowel sounds contain some important human physiological parameters which can reflect information about intestinal function. In this work, in order to realize real-time monitoring of bowel sounds, a portable and wearable bowel sound electronic monitor based on piezoelectric micromachined ultrasonic transducers (PMUTs) is proposed. This prototype consists of a sensing module to collect bowel sounds and a GUI (graphical user interface) based on LabVIEW to display real-time bowel sound signals. The sensing module is composed of four PMUTs connected in parallel and a signal conditioning circuit. The sensitivity, noise resolution, and non-linearity of the bowel sound monitor are measured in this work. The result indicates that the designed prototype has high sensitivity (−142.69 dB), high noise resolution (50 dB at 100 Hz), and small non-linearity. To demonstrate the characteristic of the designed electronic monitor, continuous bowel sound monitoring is performed using the electronic monitor and a stethoscope on a healthy human before and after a meal. Through comparing the experimental results and analyzing the signals in the time domain and frequency domain, this bowel sound monitor is demonstrated to record bowel sounds from the human intestine. This work displays the potential of the sensor for the daily monitoring of bowel sounds. |
| first_indexed | 2024-03-09T16:04:48Z |
| format | Article |
| id | doaj.art-0b763e8bee1e4871a6c560b1e96566bc |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T16:04:48Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-0b763e8bee1e4871a6c560b1e96566bc2023-11-24T16:46:14ZengMDPI AGMicromachines2072-666X2022-12-011312222110.3390/mi13122221A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic TransducersXiaoxia Ding0Zhipeng Wu1Mingze Gao2Minkan Chen3Jiawei Li4Tao Wu5Liang Lou6School of Microelectronics, Shanghai University, Shanghai 201800, ChinaThe Shanghai Industrial μTechnology Research Institute, Shanghai 201899, ChinaSchool of Microelectronics, Shanghai University, Shanghai 201800, ChinaThe Shanghai Industrial μTechnology Research Institute, Shanghai 201899, ChinaSchool of Information Science and Technology, ShanghaiTech University, Shanghai 201210, ChinaSchool of Information Science and Technology, ShanghaiTech University, Shanghai 201210, ChinaThe Shanghai Industrial μTechnology Research Institute, Shanghai 201899, ChinaBowel sounds contain some important human physiological parameters which can reflect information about intestinal function. In this work, in order to realize real-time monitoring of bowel sounds, a portable and wearable bowel sound electronic monitor based on piezoelectric micromachined ultrasonic transducers (PMUTs) is proposed. This prototype consists of a sensing module to collect bowel sounds and a GUI (graphical user interface) based on LabVIEW to display real-time bowel sound signals. The sensing module is composed of four PMUTs connected in parallel and a signal conditioning circuit. The sensitivity, noise resolution, and non-linearity of the bowel sound monitor are measured in this work. The result indicates that the designed prototype has high sensitivity (−142.69 dB), high noise resolution (50 dB at 100 Hz), and small non-linearity. To demonstrate the characteristic of the designed electronic monitor, continuous bowel sound monitoring is performed using the electronic monitor and a stethoscope on a healthy human before and after a meal. Through comparing the experimental results and analyzing the signals in the time domain and frequency domain, this bowel sound monitor is demonstrated to record bowel sounds from the human intestine. This work displays the potential of the sensor for the daily monitoring of bowel sounds.https://www.mdpi.com/2072-666X/13/12/2221PMUTsbowel soundshealth monitoringhigh sensitivity |
| spellingShingle | Xiaoxia Ding Zhipeng Wu Mingze Gao Minkan Chen Jiawei Li Tao Wu Liang Lou A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic Transducers Micromachines PMUTs bowel sounds health monitoring high sensitivity |
| title | A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic Transducers |
| title_full | A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic Transducers |
| title_fullStr | A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic Transducers |
| title_full_unstemmed | A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic Transducers |
| title_short | A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic Transducers |
| title_sort | high sensitivity bowel sound electronic monitor based on piezoelectric micromachined ultrasonic transducers |
| topic | PMUTs bowel sounds health monitoring high sensitivity |
| url | https://www.mdpi.com/2072-666X/13/12/2221 |
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