Development of the PSO method for the determination of the dynamic response of a pyroelectric sensor

Abstract

Abstract. We modeled a pyroelectric sensor by a current source connected in parallel with output impedance. The dynamic behavior of the sensor is described using a transfer function designed using the MATLAB Simulink environment. The transfer function parameters are optimized using the optimization algorithm Particle Swarm Optimization PSO implemented in the MATLAB environment. This optimization is performed from a comparison with the measured signal. The transfer function thus determined is used to determine the dynamic properties of a pyroelectric sensor. To justify the validity of the proposed approach, we used pyroelectric sensor based on PVDF.

Enhanced Pyroelectric Coefficient in Ferroelectric Lead Zirconium Titanate Thick Films for Thermal Energy Harvesting Applications

“…The theoretical and experimental pyroelectric current has been shown in Figure 12 for the PZT film which is annealed at 650 °C. The fitted thermal time constant which is as determined from fitted data is found to be 0.005 s. 44 The theoretical results are well matched with the experimental values.…”

“…Theoretical modeling in LAPLACE domain.-To verify the experimental results, theoretical simulation are performed to simulate electrical response of the sample in response to temperature gradient using MATLAB. 43 Extending the idea of Laplace domain, the transfer functions are used to describe each conversion stage from the thermal energy to electrical energy (Figure 12) in the similar manner as reported by Raouadi et al(2016). 44 Periodic heat flux is provided to the sample and a temperature gradient is given to the sample through thermal fluctuation in this work.…”

“…43 Extending the idea of Laplace domain, the transfer functions are used to describe each conversion stage from the thermal energy to electrical energy (Figure 12) in the similar manner as reported by Raouadi et al(2016). 44 Periodic heat flux is provided to the sample and a temperature gradient is given to the sample through thermal fluctuation in this work. The theoretical and experimental pyroelectric current has been shown in Figure 12 for the PZT film which is annealed at 650 °C.…”