Piezoelectric Array Configuration Technique into Enhance Power Catchment for Sound Energy Harvester System

Fang, Liew Hui; Rahim, Rosemizi Bin Abd; Romli, Muhamad Izuan Fahim; Zakariya, Mohamad Zhafran; Jobran, Junaidah Binti Ali Mohd; Kimpol, Norhanisa Binti

doi:10.1109/icseea50711.2020.9306122

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…Since the amount of charge generated by a single PMUT array is very small, an array of four PMUTs are connected in parallel. As a result, the output charge of the array of four PMUTs connected in parallel is about four times higher than that of a single PMUT array, which can improve the sensitivity [43,44]. The front and back of the module are packaged with acoustic matching gel and electronic gel, respectively.…”

Section: Sensing Module Design and Characterizationmentioning

confidence: 99%

A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic Transducers

Ding

Gao

et al. 2022

Micromachines

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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.

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Section: Sensing Module Design and Characterizationmentioning

confidence: 99%

A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic Transducers

Ding

Gao

et al. 2022

Micromachines

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“…Energy harvesting is the collection of ambient energy from various renewable sources, such as solar [6], wind, and thermal (heat) [7], to power commercial wireless devices. Mechanical energy, vibration [8], movement, sound (acoustic) [9], light [10], electromagnetic energy, natural energy, human body energy, and others are examples of energy harvesting sources.…”

Section: Introductionmentioning

confidence: 99%

Rectenna for Radio Frequency Energy Harvesting: A Review

AB RASHID,

B. H. Ahmad,

M. Z. A. Abd Aziz

et al. 2024

Elektrika

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The emergence of wireless charging technology is also a topic of debate among consumers, fabricators, researchers, and academics. This paper focuses on the literature review of several works on the previous enhancement technique that effect the performance of antenna design with rectifying circuit (rectenna) for energy transfer system technology. Several techniques are applied on this microstrip antenna design work to enhance the antenna performance such as slot, parasitic element, fractal, antenna arrays and others. The parameters that are considered in this work are return loss, resonant frequency with bandwidth, gain and the antenna dimension.

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Foot Step Power Generation: A Comparative Analysis of Multi-Array Piezoelectric Transducer Configurations

Khan,

Sultana,

Himel

2023

2023 6th International Conference on Electrical Information and Communication Technology (EICT)

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Piezoelectric Array Configuration Technique into Enhance Power Catchment for Sound Energy Harvester System

Cited by 3 publications

References 25 publications

A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic Transducers

A High-Sensitivity Bowel Sound Electronic Monitor Based on Piezoelectric Micromachined Ultrasonic Transducers

Rectenna for Radio Frequency Energy Harvesting: A Review

Foot Step Power Generation: A Comparative Analysis of Multi-Array Piezoelectric Transducer Configurations

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