Showing papers on "Lead zirconate titanate published in 2006"
TL;DR: In this article, a lead-free piezoelectric ceramics, with the nominal composition of 0.948(K 0.5Na0.5)NbO3-0.052LiSbO 3 (KNN-LS5.2), were synthesized by conventional solid-state sintering, and the pieziolectric and electromechanical properties were characterized as a function of temperature, which mimicked the compositional variation seen in the proximity of a morphotropic phase boundary.
Abstract: Lead-free piezoelectric ceramics, with the nominal composition of 0.948(K0.5Na0.5)NbO3–0.052LiSbO3 (KNN-LS5.2), were synthesized by conventional solid-state sintering, and the piezoelectric and electromechanical properties were characterized as a function of temperature. The Curie temperature of the KNN based perovskite material was found to be 368°C with an orthorhombic-tetragonal polymorphic phase transition (TO-T) temperature at approximately ∼35°C. The room temperature dielectric permittivity (e33T∕e0) and loss were found to be 1380 and 2%, respectively, with piezoelectric properties of k33∼62% and d33∼265pC∕N and k31∼30% and d31∼−116pC∕N. The temperature dependence of the properties mimicked the compositional variation seen in the proximity of a morphotropic phase boundary [e.g., lead zirconate titanate (PZT)], with a maxima in the dielectric and piezoelectric properties and a corresponding “softening” of the elastic properties. Unlike that found for PZT-type materials, the modified KNN material exhi...
599 citations
TL;DR: In this paper, a thin film lead zirconate titanate Pb(Zr,Ti)O3 (PZT), energy harvesting MEMS device is developed to enable self-supportive sensors for in-service integrity monitoring of large social and environmental infrastructures at remote locations.
Abstract: A thin film lead zirconate titanate Pb(Zr,Ti)O3 (PZT), energy harvesting MEMS device is developed to enable self-supportive sensors for in-service integrity monitoring of large social and environmental infrastructures at remote locations. It is designed to resonate at specific frequencies of an external vibrational energy source, thereby creating electrical energy via the piezoelectric effect. Our cantilever device has a PZT/SiNx bimorph structure with a proof mass added to the end. The Pt/Ti top electrode is patterned into an interdigitated shape on top of the sol-gel-spin coated PZT thin film in order to employ the d
33 mode. The base-shaking experiment at the first resonant frequency of the cantilever (170 × 260 μm) generates 1 μW of continuous electrical power to a 5.2 MΩ resistive load at 2.4 V DC. The effect of proof mass, beam shape and damping on the power generating performance are modeled to provide a design guideline for maximum power harvesting from environmentally available low frequency vibrations. A spiral cantilever is designed to achieve compactness, low resonant frequency and minimum damping coefficient, simultaneously.
322 citations
TL;DR: Switching spectroscopy piezoresponse force microscopy (SS-PFM) is developed as a quantitative tool for real-space imaging of imprint, coercive bias, remanent and saturation responses, and domain nucleation voltage on the nanoscale as discussed by the authors.
Abstract: The application of ferroelectric materials for nonvolatile memory and ferroelectric data storage necessitates quantitative studies of local switching characteristics and their relationship to material microstructure and defects. Switching spectroscopy piezoresponse force microscopy (SS-PFM) is developed as a quantitative tool for real-space imaging of imprint, coercive bias, remanent and saturation responses, and domain nucleation voltage on the nanoscale. Examples of SS-PFM implementation, data analysis, and data visualization are presented for epitaxial lead zirconate titanate (PZT) thin films and polycrystalline PZT ceramics. Several common artifacts related to the measurement method, environmental factors, and instrument settings are analyzed.
212 citations
TL;DR: In this paper, the authors reported direct measurements of non-180° domain wall motion in ceramic lead zirconate titanate during application of sub-coercive cyclic driving electric fields using an in situ stroboscopic neutron diffraction technique.
Abstract: The dynamic piezoelectric response of ferroelectric ceramics is comprised of both intrinsic (piezoelectric lattice strain) and extrinsic (non-180° domain wall motion) components. Here the authors report direct measurements of non-180° domain wall motion in ceramic lead zirconate titanate during application of subcoercive cyclic driving electric fields using an in situ stroboscopic neutron diffraction technique. During unipolar cycling at 1Hz and half of the coercive field, non-180° domain switching gives rise to approximately 34% of the measured d33 coefficient of 400pm∕V.
159 citations
TL;DR: It is shown that lead zirconate titanate thin films undergo local phase decomposition during fatigue, which is the generic reason for electrical fatigue in ferroelectrics.
Abstract: We show that lead zirconate titanate thin films undergo local phase decomposition during fatigue. The original remanent polarization of the fatigued film is completely restored after furnace annealing in an O2 atmosphere, following a significant regrowth of a perovskite phase from the pyrochlorelike structure. By comparing our data with other researchers' work on annealing of fatigued ferroelectric samples, we conclude that local phase separation is the generic reason for electrical fatigue in ferroelectrics. A fatigue model is proposed in order to interpret our experimental data.
138 citations
TL;DR: In this article, a micro ultrasonic motor using a micro-machined bulk piezoelectric transducer is introduced, which is made of lead zirconate titanate (PZT) bulk ceramics.
Abstract: In this paper, a micro ultrasonic motor using a micro-machined bulk piezoelectric transducer is introduced. The cylindrical shaped bulk piezoelectric transducer, a diameter of 0.8 mm and a height of 2.2 mm, was developed as stator transducer for traveling wave type ultrasonic motor. The transducer was made of lead zirconate titanate (PZT) bulk ceramics, and formed by micro machining, Ni plating and laser beam cutting process. Using this stator transducer, we have fabricated a cylindrical micro ultrasonic motor, a diameter of 2.0 mm and a height of 5.9 mm. We have also evaluated some characteristics and succeeded in driving the micro ultrasonic motor.
122 citations
TL;DR: In this article, a multiferroic laminated composites of PbZr0.52Ti0.48O3 and CoFe2O4(CFO) were prepared by conventional ceramic processing and the interdiffusion of the elements between different layers occurred, altering material properties.
Abstract: Multiferroic laminated composites of PbZr0.52Ti0.48O3(PZT)∕CoFe2O4(CFO)∕PbZr0.52Ti0.48O3 were prepared by conventional ceramic processing. The interdiffusion of the elements between different layers occurred, altering material properties. The dielectric behavior of such a sandwiched ceramic was dominated by the relative thickness of the different layers because of the high dielectric constant of the PZT layer and the low dielectric constant of the CFO layer. The magnetoelectric behaviors were strongly dependent on the relative thickness of the CFO layer, dc magnetic field, ac magnetic frequency, and the angle θ between the magnetic field and polarization direction. The maximal magnetoelectric-induced voltage coefficient of the composites reaches up to about 27mV∕Oe, close to what was reported previously. The magnetoelectric effect of the laminated composites was also simulated with the finite-element method. The reasons for the difference between experiment and simulation were discussed.
119 citations
TL;DR: In this paper, multiferroic behavior in lead zirconate titanate (PZT) and cobalt iron oxide (CFO) composite thin films was investigated and it was found that upon annealing, the multilayered structures are intermixed at least partially, and CFO is phase separated into PZT matrix.
Abstract: In the present work we report multiferroic behavior in lead zirconate titanate (PZT)–cobalt iron oxide (CFO) composite thin films. It is found that upon annealing, the multilayered structures are intermixed at least partially, and CFO is phase separated into PZT matrix to form a composite film. The phase separation behavior has been characterized by x-ray photoelectron spectroscopy depth profiling of the constituent elements in conjunction with dielectric spectroscopy measurements. The composite films exhibited ferroelectric as well as ferromagnetic characteristics at room temperature. The coupling between the ferroelectric and the ferromagnetic order parameters has been demonstrated through the reduction of ferroelectric polarization when measured under an applied magnetic field.
102 citations
TL;DR: In this paper, the scaling behavior of the dynamic hysteresis of ferroelectric bulk system was investigated and it was shown that the scaling relation is dimension dependent and that depolarizing effects in the interior must be taken into account to model bulk materials.
Abstract: The scaling behavior of the dynamic hysteresis of ferroelectric bulk system was investigated. The scaling relation of hysteresis area ⟨A⟩ against frequency f and field amplitude E0 for the saturated loops of the soft lead zirconate titanate bulk ceramic takes the form of ⟨A⟩∝f−1∕4E0, which differs significantly from that of the theoretical prediction and that of the thin film. This indicates that the scaling relation is dimension dependent and that depolarizing effects in the interior must be taken into account to model bulk materials. Additionally, the scaling relation for the minor loops takes the form of ⟨A⟩∝f−1∕3E03, which is identical to that of the thin film as both cases contain similar 180° domain-reversal mechanism.
98 citations
TL;DR: In this paper, a single-phase compound was formed exhibiting a tetragonal system and the ac conductivity spectrum obeyed the Jonscher power law, which indicated the possibility of hopping mechanism for electrical processes in the system with a nonexponential type of conductivity relaxation.
Abstract: (Pb0.97Sr0.03)(Zr0.05Ti0.95)O3 nanocrystalline powder was prepared by a solution based chemical method. Preliminary x-ray diffractogram analysis of some aspects of crystal structure showed that a single-phase compound was formed exhibiting a tetragonal system. Impedance spectroscopy study showed the presence of both bulk and grain boundary effects in the material, which is also evident from the scanning electron microscope micrographs. The bulk conductivity indicates an Arrhenius-type thermally activated process. The ac conductivity spectrum obeyed the Jonscher power law. Modulus analysis indicated the possibility of hopping mechanism for electrical processes in the system with a nonexponential type of conductivity relaxation.
96 citations
TL;DR: In this paper, a magnetoelectric CoFe2O4-PZT (lead zirconate titanate) films as thick as 1 mu m have been prepared by spin coating using a PZT sol-gel solution containing polyvinylpyrrolidone and CoFe 2O4 powder.
Abstract: Magnetoelectric CoFe2O4-PZT (lead zirconate titanate) films as thick as 1 mu m have been prepared by spin coating using a PZT sol-gel solution containing polyvinylpyrrolidone and CoFe2O4 powder. X-ray diffraction result reveals that there exists no chemical reaction or phase diffusion between the CoFe2O4 and PZT phases. The scanning electron microscopy observation confirms that the composite thick film is crack-free and has a well-defined microstructure. The composite thick films exhibit good magnetic and ferroelectric properties, as well as distinct magnetoelectric coupling behavior. The magnetoelectric coupling mechanism for the present composite thick film is discussed in detail. (c) 2006 American Institute of Physics.
TL;DR: In this paper, the frequency dependent conductivity and permittivity of a ceramic composite are modelled using electrical networks consisting of randomly positioned resistors and capacitors, where the electrical network represents a heterogeneous microstructure that contains both insulating (the capacitor) and conductive regions (the resistor).
Abstract: The frequency dependent conductivity and permittivity of a ceramic composite are modelled using electrical networks consisting of randomly positioned resistors and capacitors. The electrical network represents a heterogeneous microstructure that contains both insulating (the capacitor) and conductive regions (the resistor). To validate model results, a model ceramic conductor–insulator composite was designed consisting of a porous lead zirconate titanate impregnated with different concentrations of water. Excellent agreement between experimental and model data was achieved with a strong correlation with many other ceramics, glasses and composites. It is proposed that the 'universal' dielectric response of many materials is a consequence of microstructural heterogeneity. The modelling approach could be used as a simple and effective method for microstructural design of ceramics and other materials with tailored dielectric properties.
01 Jan 2006
TL;DR: In this article, a mechanoelectrical energy converter based on piezoelectric thick films of lead zirconate titanate (PZT) de-posed on a steel cantilever by a low-temperature process is pre- sented.
Abstract: This paper deals with the energy conversion via the piezoelectric effect. A mechanoelectrical energy converter based on piezoelectric thick films of lead zirconate titanate (PZT) de- posited on a steel cantilever by a low-temperature process is pre- sented. Modeling and measurement results on the performances of the piezoelectric converter are reported, and its potential use in self-powered autonomous sensor devices is proposed. Index Terms—Autonomous microsystems, autonomous sensors, lead zirconate titanate (PZT), piezoelectric converter, power generation.
TL;DR: In this paper, an electric field E produces a mechanical deformation in lead zirconate titanate (PZT), resulting in a shift δf in the frequency for electromagnetic modes in the ferrite.
Abstract: Millimeter-wave magnetoelectric interactions have been studied through electric field effects on magnetic excitations in bilayers of single crystal barium ferrite and lead zirconate titanate (PZT). An electric field E produces a mechanical deformation in PZT, resulting in a shift δf in the frequency for electromagnetic modes in the ferrite. Reflected power versus frequency profiles at 40–55GHz for a series of bias magnetic field and E=0–10kV∕cm along the c axis of the ferrite showed an increase in δf to a maximum of 8MHz. Theoretical estimates of δf are in agreement with the data.
TL;DR: Modeling and measurement results on the performances of the piezoelectric converter are reported and their potential use in self-powered autonomous sensor devices is proposed.
Abstract: This paper deals with the energy conversion via the piezoelectric effect. A mechanoelectrical energy converter based on piezoelectric thick films of lead zirconate titanate (PZT) deposited on a steel cantilever by a low-temperature process is presented. Modeling and measurement results on the performances of the piezoelectric converter are reported, and its potential use in self-powered autonomous sensor devices is proposed
TL;DR: In this article, a 0-3 cement-based piezoelectric composite was fabricated with lead zirconate titanate (PZT) as active phase and sulphoaluminate cement as matrix by compressing technique.
TL;DR: In this paper, the elastic strain and crystallographic texture of a rhombohedral lead zirconate titanate ceramic have been characterised in the remanent state, after poling, using high-energy synchrotron X-ray diffraction as a function of the grain orientation relative to the poling direction.
TL;DR: In this article, an elastic-steel layer with a relatively high Qm significantly increases the resonant enhancement of the ME coefficient due to an increased effective Qm of the laminate.
Abstract: Resonant bending-mode Tb1−xDyxFe2−y∕elastic-steel∕Pb(Zr,Ti)O3 magnetoelectric (ME) laminate composites have been investigated. An elastic-steel layer with a relatively high Qm significantly increases the resonant enhancement of the ME coefficient due to an increased effective Qm of the laminate. The three-phase ME laminates have a low first-order bending frequency of ∼5kHz, with a resonance-enhanced ME coefficient of ∼40V∕cmOe.
TL;DR: In this article, the influence of the Zr/Ti ratio on the piezoelectric properties of (Mn and 1 at% F)-doped PZT and Mn-doped lead zirconate titanate ceramics was investigated.
TL;DR: In this article, the pyroelectric and dielectric properties of modified lead zirconate titanate (PZT) ceramics have been studied for their use in infrared detectors.
TL;DR: In this article, the authors investigated unidirectional piezoelectric composites made of lead zirconate titanate (PZT) ceramic fibres embedded in a polymeric matrix.
Abstract: This study investigated unidirectional piezoelectric composites made of lead zirconate titanate (PZT) ceramic fibres embedded in a polymeric matrix. Several samples with various amounts of PZT fibres were prepared and their dielectric spectra were measured in the frequency range 0.1–100 kHz and at temperature intervals from ambient to 210 °C. The interface plays a significant role on piezocomposite performances (such as stress transfer). The principal objective of this study is to highlight this interface by dielectric measurements for non polarized composites. For these piezocomposites, three relaxation processes were identified: the α mode relaxation associated with the glass transition of the epoxy resin matrix, the relaxation process associated with conductivity occurring because of the diffusion of charge carriers that was manifested for high temperatures above glass transition and low frequencies, and interfacial or Maxwell-Wagner-Sillars relaxation that is attributable to the accumulation of charges at the PZT fibres/epoxy resin interfaces.
TL;DR: In this paper, the top and bottom oxide electrodes of LaNiO3 (LNO) for lead zirconate titanate (PZT) films using a chemical solution deposition were prepared on platinized silicon by spin coating combined with rapid thermal annealing.
Abstract: We report a technique to prepare top and bottom oxide electrodes of LaNiO3 (LNO) for lead zirconate titanate (PZT) films using a chemical solution deposition. LNO/PZT/LNO sandwich structures were prepared on platinized silicon by spin coating combined with rapid thermal annealing. Pt dots were sputtered on top of LaNiO3 film to serve as protective masks during etching of the uncovered LaNiO3 layer using dilute hydrochloric acid. For comparison, Pt/PZT/Pt capacitors were also prepared using the same processing conditions. Electrical measurements were carried out on both Pt/LNO/PZT/LNO/Pt and Pt/PZT/Pt structures. The remnant polarizations and coercive fields for these two capacitors are 17.4 and 21.4μC∕cm2, 71 and 81.5kV∕cm respectively at 5V. The leakage current density for the Pt/LNO/PZT/LNO/Pt structure is about 1.38×10−6A∕cm2 at 5V, which is lower than that of PZT deposited on Pt electrode. After 109 bipolar switching cycles, no significant change in remnant polarization was observed in the Pt/LNO/PZT/...
TL;DR: In this article, the effect of the porous microstructure on the dielectric constant and loss factor at frequencies of 10 −105 Hz was discussed in PZT ceramics with varying porosity.
Abstract: Porous piezoelectric materials are of great interest because of their high hydrostatic figure of merit and low sound velocity, which results in to low acoustic impedance and efficient coupling with medium. Porous lead zirconate titanate (PZT) ceramics with varying porosity was developed using polymethyl methacrylate by burnable plastic spheres (BURPS) process. The porous PZT ceramics were characterized for dielectric constant (ɛ), dielectric loss factor (tan δ), hydrostatic charge (dh) and voltage (gh) coefficients and microstructure. The effect of the porous microstructure on the dielectric constant and loss factor at frequencies of 10–105 Hz are discussed in this paper.
TL;DR: In this article, the authors presented a design of lead zirconate titanate (PZT) circular diaphragm actuators to generate large deflections using deep reactive ion etching (DRIE).
Abstract: This paper presents a design of lead zirconate titanate (PZT) circular diaphragm actuators to generate large deflections. The actuators utilize a unimorph structure consisting of an active PZT and a passive thermally grown SiO2 layer. The diaphragm structures were formed by deep reactive ion etching (DRIE). Two different designs, where the PZT layer in the diaphragm actuators was driven by either interdigitated (IDT) electrodes or parallel plate electrodes, were investigated. Both finite element analysis and experimental results proved that the IDT configuration is favorable to generate deflections larger than the diaphragm thickness. The IDT configuration creates an expansion in the PZT layer in the radial direction and a contraction in the tangential direction under forward bias, which enables large deflections. At applied voltages of 100 V, an actuator 800 mum in diameter could generate center deflections of around ~7.0 mum, significantly greater than the diaphragm thickness of 2.8 mum. The deflection profiles for the diaphragm actuators became flatter when an inactive region in the annular IDT configuration was introduced. There was also a proportional reduction of the maximum deflection
TL;DR: In this article, the authors describe the manufacturing and characterization of lead zirconate titanate (PZT) fibres manufactured by viscous plastic processing (VPP).
Abstract: Piezoelectric fibres are finding increasing application in a variety of piezoelectric composites, including active fibre composites (AFCs). This paper describes the manufacture and characterization of lead zirconate titanate (PZT) fibres manufactured by viscous plastic processing (VPP). The manufacturing method will be described along with a systematic characterization of the macrostructure, microstructure, phase composition and low and high field piezoelectric properties. A comparison with other available PZT fibres will be made, which demonstrates that the VPP PZT fibres display high piezoelectric coefficients.
TL;DR: In this article, the effect of the non-piezoelectric extension on the vibration wave form and mass detection sensitivity of a PEC was examined both experimentally and theoretically.
Abstract: A piezoelectric cantilever (PEC) is a transverse transducer consisting of a piezoelectric layer, e.g., lead zirconate titanate (PZT), bonded to a nonpiezoelectric layer, e.g., stainless steel, which has a uniform cross section throughout the length. A PEC with a thin nonpiezoelectric extension, on the other hand, has two distinctive sections each with its own thickness and transverse mass-density and elastic-modulus profiles. A piezoelectric cantilever with a nonpiezoelectric extension has been increasingly used as an in situ biosensor that has the advantage of dipping only the nonpiezoelectric extension part in an aqueous solution without electrically insulating the piezoelectric section. In this study, we examined both experimentally and theoretically the effect of the thin nonpiezoelectric extension, in particular, its length ratio to the piezoelectric part on the vibration wave form and mass detection sensitivity of a PEC. We showed that the nonpiezoelectric extension caused substantial distortion to ...
TL;DR: In this paper, a change of tetragonal to rhombohedral phase was noticed with increase in zirconia concentration from 0.48 to 0.54 mol, and the free strain of the multilayered stacks was measured by applying a dc voltage up to 650V.
Abstract: Lead zirconate titanate (PZT) compositions near morphotropic phase boundary (MPB) Pb(ZrxTi1x2212;x)O3, 0.48x2264;xx2264;0.54, were prepared by wet chemical route using water soluble precursors. Compositions were prepared with donor dopants, such as La3+, Nd3+ or their combinations. The13; combined hydrous precursors were calcined in the temperature range of 750x2013;900 x25E6;C. From the X-ray diffraction (XRD) patterns of calcined PZT powders, a change of tetragonal to rhombohedral phase was noticed with increase in zirconia concentration from 0.48 to 0.54 mol. Both rhombohedral and tetragonal phases were found in the composition range of 0.52x2013;0.54 mol ratios of zirconia, therefore, this range was identified as MPB composition. Calcined PZT powders were compacted and sintered at 1250 x25E6;C/2 h in a closed lead rich atmosphere. The sintered compacts were leveled, polished, electroded and the ferroelectric and dielectric properties were measured. After poling, piezo properties were also measured.In case of undoped samples, it was observed that remnant polarization (Pr), dielectric constant (K) and piezoelectric charge constant (d33) increase with zirconia concentration. In general, the above properties increase substantially by addition of dopants at low concentrations. The increase was found more for lanthanum doped samples compared to neodymium. The d33 value for the combined dopants of lanthanum and neodymium was in between the values obtained for individual dopants of the same concentration. A few multilayered (25 layers) stacks were fabricated using thin strips cut from the sintered blocks of the above powders. The strips were electroded and poled in a dc field of 2 kV/mm and were laminated into multilayered stacks. The free strain of the multilayered stacks was measured by applying a dc voltage up to 650V. The free strain was found to be linear and 0.1% of the height of the stack.
TL;DR: In this paper, the electrical and mechanical properties of the lead-free piezoceramic cymbal are compared with that of the PZT (Lead Zirconate titanate) cymbals.
Abstract: Lead-free piezoelectric ceramic 0.90(Bi1/2Na1/2)TiO3-0.05(Bi1/2K1/2)TiO3-0.05BaTiO3 (abbreviated as BNT-BKT-BT5) is used as the driving element in a cymbal actuator with titanium endcaps. Both the electrical and mechanical properties of the lead-free piezoceramic cymbal are compared with that of the lead zirconate titanate (PZT) cymbal. It is found that the performance of the lead-free ceramic cymbal actuator is comparable to those fabricated using hard PZT ceramic driving element because BNT-BKT-BT5 has reasonable piezoelectric coefficients and low density.
TL;DR: In this article, an equilibrium phase diagram satisfying the Gibbs phase rule is computed for the PbZrO3-PbTiO3 (PZT) system from a low-order Landau expansion in the approximation of the theory of regular solutions.
Abstract: An equilibrium phase diagram satisfying the Gibbs phase rule is computed for the PbZrO3-PbTiO3 (PZT) system from a low-order Landau expansion in the approximation of the theory of regular solutions. We show that in the equilibrium phase diagram, miscibility gaps replace the morphotropic phase boundary and the paraelectric to ferroelectric transition lines of the “diffusionless” phase diagram. The decomposition occurs by a peritectoid reaction and the miscibility gaps expand significantly with increasing positive values of the atomic exchange interaction parameter. Diffusional processes are estimated to be sufficiently fast to achieve two-phase equilibria at normal rates of cooling used to process PZT materials.
27 Aug 2006
TL;DR: In this article, a self-sensing system composed of self sensing algorithms and a self sensing circuit equivalent to a charge amplifier is developed so that a single PZT wafer can be used for simultaneous actuation and sensing.
Abstract: Smart materials such as lead zirconate titanate (PZT) have been widely used for generating and measuring guided waves in solid media. The guided waves are then used to detect local defects for structural health monitoring (SHM) applications. In this study, a self-sensing system, composed of self-sensing algorithms and a self-sensing circuit equivalent to a charge amplifier, is developed so that a single PZT wafer can be used for simultaneous actuation and sensing. First, a PZT wafer is modeled as a single capacitor and a voltage source, and a so-called scaling factor, defined as the ratio of the PZT capacitance to the capacitance of the feedback capacitor in the self-sensing circuit, is estimated by applying known waveforms to the PZT wafer. Then, the mechanical response of the PZT wafer coupled with the host structure's response is extracted from the measured PZT output voltage when an arbitrary excitation is applied to the same PZT wafer. While existing self-sensing techniques focus on vibration controls, the proposed self-sensing scheme attempts to improve the accuracy of extracted sensing signals in the time domain. The simplicity, adaptability and autonomous nature of the proposed self-sensing scheme make it attractive for continuous monitoring of structures in the field. The effectiveness of the proposed self-sensing scheme is investigated through numerical simulations and experiments on a cantilever beam.