Improvement of the vibratory diagnostic method by evolution of the piezoelectric sensor performances

Z Ghemari, S Saad, K Khettab - International Journal of Precision …, 2019 - Springer
Vibration analysis is an important means in the industrial field to monitor electromechanical
systems; their evolution can provide the correct information on vibration. For this purpose; it …

Improvement of the vibratory analysis by enhancement of accelerometer characteristics

S Belkhiri, Z Ghemari, S Saad, G Boudechiche - Sensor Letters, 2020 - ingentaconnect.com
In this work, the mathematical model suitable for the operating principle of the piezoelectric
accelerometer is extracted then this model which connects the accuracy and the …

Appropriate choice of damping rate and frequency margin for improvement of the piezoelectric sensor measurement accuracy

Z Ghemari, S Salah, M Defdaf - Journal of Advanced Manufacturing …, 2021 - World Scientific
In industrial installations, the piezoelectric sensor plays a very important role in the
monitoring of electromechanical systems and the detection of their early defects. Modeling is …

Modeling and enhancement of piezoelectric accelerometer relative sensitivity

SK Reguieg, Z Ghemari, T Benslimane, S Saad - Sensing and Imaging, 2019 - Springer
The piezoelectric accelerometer is an electronic instrument based on the direct effect of the
piezoelectric material, this device is widely used in the industries to monitor and detect …

Progression of the vibratory analysis technique by improving the piezoelectric sensor measurement accuracy

Z Ghemari - Microwave and Optical Technology Letters, 2018 - Wiley Online Library
The piezoelectric sensor is the best choice for large industrial installations for instantaneous
monitoring and premature fault diagnosis of electromechanical systems. In this work, we …

Resonance effect decrease and accuracy increase of piezoelectric accelerometer measurement by appropriate choice of frequency range

Z Ghemari, S Salah, R Bourenane - Shock and Vibration, 2018 - Wiley Online Library
A suitable piezoelectric accelerometer mathematical model is proposed to extract a
relationship of motion relative frequency as a function of natural frequency. This relationship …

Mechanical resonator sensor characteristics development for precise vibratory analysis

Z Ghemari, S Belkhiri - Sensing and Imaging, 2021 - Springer
The choice of piezoelectric material for a mechanical resonator sensor development is
essential in terms of sensitivity, compatibility with the environment in which it will operate …

Improvement of the vibration analysis technique by optimizing the parameters of the piezoelectric accelerometer

Z Ghemari, S Belkhiri… - 2022 IEEE 21st …, 2022 - ieeexplore.ieee.org
Condition-based maintenance is the most advanced form of maintenance because it is
based on the actual state of the machine. It allows for better manage the interventions …

New model of piezoelectric accelerometer relative movement modulus

Z Ghemari, S Saad, A Amrouche… - Transactions of the …, 2015 - journals.sagepub.com
A piezoelectric accelerometer is the first element of a vibration measurement chain, and its
improvement can enhance measurement quality. In this work, a new model of relative …

Improvement of the relative sensitivity for obtaining a high performance piezoelectric sensor

Z Ghemari, S Belkhiri, S Saad - IEEE Instrumentation & …, 2023 - ieeexplore.ieee.org
The purpose of a piezoelectric sensor is to measure the vibratory movements of structures
by the direct effect of the piezoelectric material. In this paper, the operating principle of the …