Acceleration sensitivity of piezoelectric pressure sensors and the influence on the measurement of explosion pressures

Krause, Tim; Kanbur, Harun; Springer, Niels; Brunzendorf, J.; Markus, Detlev; Walch, Otto; Heer, Christian

doi:10.1016/j.jlp.2023.104999

Cited by 7 publications

(3 citation statements)

References 1 publication

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“…Piezoelectric devices have been extensively studied over several decades, leading to the development of numerous applications, including ultrasonic imaging [1][2][3][4], high-frequency surgery [5,6], sonar systems [7][8][9], musical instruments [10][11][12][13], and pressure-acceleration sensors [14][15][16][17][18]. Because piezoelectric materials can convert mechanical energy into electrical energy, they hold promise as energy-harvesting devices [19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Realizing stretchable energy harvesting film through stretch-buckling conversion of wavy base

Gwak,

Kim,

Victoria

et al. 2024

Smart Mater. Struct.

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In this study, we designed and fabricated a stretchable energy harvesting device. This device operates by inducing buckling in the PZT film through tension applied to the wavy base, resulting in voltage generation. Both simulations and experiments demonstrate that the aspect ratio between the pitch and curve radius of the symmetric wavy base influences the energy conversion efficiency of the piezoelectric device. An in-depth analysis revealed that increasing the resolution of the device leads to a proportional increase in energy conversion efficiency. This finding aligns with the mathematical modeling proposed in our study. Consequently, our study demonstrates the potential of miniaturized wavy piezoelectric devices in diverse applications, including soft robotics, wearable devices, and highly sensitive stretchable sensors. These devices hold promise for enhancing the efficiency of flexible devices by harnessing energy from mechanical movement.

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Section: Introductionmentioning

confidence: 99%

Realizing stretchable energy harvesting film through stretch-buckling conversion of wavy base

Gwak,

Kim,

Victoria

et al. 2024

Smart Mater. Struct.

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“…[5,6] Currently, both domestically and internationally, high g-value accelerometers are commonly employed to measure high overload signals in high-speed impact and penetration experiments. [7,8] During the penetration of the flying carrier into multi-layer hard targets, the testing apparatus real-time senses the penetrating overload, enabling the reliable generation of control signals for the flying carrier at the right moment. High g-value accelerometers typically operate based on resistive or piezoelectric principles.…”

Section: Introductionmentioning

confidence: 99%

Design and experimental study of a novel piezoelectric accelerometer

Zou,

Sui,

Zhang

et al. 2024

Fourth International Conference on Sensors and Information Technology (ICSI 2024)

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The collision or penetration overload signal measured by the general accelerometer may encounter problems such as signal overlap and multi-layer signal adhesion. This paper designs a novel piezoelectric accelerometer with the characteristics of mechanical filtering and switching. The structure and working principle of this accelerometer are described in the paper, and its output characteristics are obtained through experiments. The experimental results show that the output signal of the new piezoelectric accelerometer has the characteristics of less high-frequency interference signal and no signal adhesion, which are conducive to the information extraction of collision and penetration multi-layer target by the flying carrier.

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“…At present, the vibration sensors widely used in lowfrequency micro-seismic monitoring are mainly electrical sensors such as capacitive [6], resistive [7], piezoelectric [8], and micro-electro-mechanical system (MEMS) [9] sensors. They are designed with high accuracy and low cost, but there are issues such as susceptibility to electromagnetic interference, corrosion, and difficulty in wiring in practical engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Low-frequency FBG vibration sensors for micro-seismic monitoring

Hong,

Zhang,

et al. 2023

Meas. Sci. Technol.

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Vibration sensors are key components in low-frequency micro-seismic monitoring, and their performance directly determines the accuracy of monitoring results. In response to the current problem that fiber Bragg grating (FBG) vibration sensors are difficult to effectively monitor micro-seismic low-frequency vibration signals, a rigid L-shaped beam FBG vibration sensor based on bearings is proposed. Firstly, a sensor model is established and theoretically analyzed; secondly, key parameters are optimized using differential evolution algorithm and imported into COMSOL simulation software for static stress analysis and dynamic characteristic analysis; finally, the sensor prototype is developed and a low-frequency vibration test system is set up to verify the sensor performance. The results reveal that the inherent frequency of the sensor is 57 Hz, with a flat response band of 0.3–35 Hz, a frequency lower limit of 0.05 Hz, a transverse interference degree of 4.5%, an average sensitivity of over 800 pm g−1, a dynamic range of 67.75 dB, favorable linearity, and the ability to achieve temperature self-compensation. Research findings provide new insights into low-frequency micro-seismic monitoring.

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Acceleration sensitivity of piezoelectric pressure sensors and the influence on the measurement of explosion pressures

Cited by 7 publications

References 1 publication

Realizing stretchable energy harvesting film through stretch-buckling conversion of wavy base

Realizing stretchable energy harvesting film through stretch-buckling conversion of wavy base

Design and experimental study of a novel piezoelectric accelerometer

Low-frequency FBG vibration sensors for micro-seismic monitoring

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