Frequency dependence of piezoelectric vibration velocity

Li, Tao; Chen, Y.H.; Ma, Jan

doi:10.1016/j.sna.2007.05.024

Cited by 20 publications

(15 citation statements)

References 30 publications

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“…The stress is an important factor that affects heat generation and vibration amplitude (Li et al, 2007b(Li et al, , 2007c). …”

Section: Harmonic Analysismentioning

confidence: 99%

“…The mechanical loss per unit volume is estimated using the following equation (Li et al, 2007b(Li et al, , 2007c …”

Section: (A) Mechanical Quality Factormentioning

confidence: 99%

“…This is a low ultrasonic frequency aiming at reducing the heat generation (Francis, 2001;Li et al, 2007b;Siegel et al, 2000). The diameter of the PZT stack is 10 mm.…”

Section: Fig 9 Schematic Illustration Of the Piezoelectric Thrombolmentioning

confidence: 99%

“…The diameter of the PZT stack is 10 mm. Maximum input power is 20 W. The length of transmission wire is 1 m, which is made of a high strength material, Ti-6Al-4V, for achieving a high vibration velocity (Li et al, 2007b;Mason & Wehr, 1970;Muhlen, 1990). For practical operations, due to the long length of the transmission wire, the bending mode could be excited, which would increase loss and decrease the efficiency of the device.…”

Section: Fig 9 Schematic Illustration Of the Piezoelectric Thrombolmentioning

confidence: 99%

“…The vibration velocity of the transducer is limited by the mechanical, thermal and electrical properties of the materials. Currently, the PZT material is only able to achieve a vibration velocity less than 1 m/s as compared to 20 m/s for the titanium material in the same ultrasonic frequency range (Li et al, 2007b;Mason & Wehr, 1970;Muhlen, 1990). Thus, by using the titanium horn, the transducer can achieve larger vibration amplitude.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Horn-Type Piezoelectric Ultrasonic Transducer: Modelling and Applications

Li¹,

Ma²,

Low³

2011

Advances in Piezoelectric Transducers

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“…The stress is an important factor that affects heat generation and vibration amplitude (Li et al, 2007b(Li et al, , 2007c). …”

Section: Harmonic Analysismentioning

confidence: 99%

“…The mechanical loss per unit volume is estimated using the following equation (Li et al, 2007b(Li et al, , 2007c …”

Section: (A) Mechanical Quality Factormentioning

confidence: 99%

“…This is a low ultrasonic frequency aiming at reducing the heat generation (Francis, 2001;Li et al, 2007b;Siegel et al, 2000). The diameter of the PZT stack is 10 mm.…”

Section: Fig 9 Schematic Illustration Of the Piezoelectric Thrombolmentioning

confidence: 99%

Section: Fig 9 Schematic Illustration Of the Piezoelectric Thrombolmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Horn-Type Piezoelectric Ultrasonic Transducer: Modelling and Applications

Li¹,

Ma²,

Low³

2011

Advances in Piezoelectric Transducers

Self Cite

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Electrophoretic Deposition of Nanostructured Electroactive Materials

Chen

2011

Nanostructure Science and Technology

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Piezoelectric ceramics actuators have been widely applied in industries and attracted huge attention in academic research during the last decades due to their many advantages such as good displacement resolution, good mechanical durability, high speed, large output force, low power consumption and wide bandwidth of frequencies [1][2][3][4][5]. However, Most of the piezoelectric devices can only be of a very simple shape or structure, such as a plate or a disk. This is largely due to the various difficulties in the fabrication technique. Due to the brittle nature of the piezo ceramics, machining them into complicated shapes remains as a challenge.However, the development of electrophoretic deposition (EPD) technique provides a choice for the fabrication of piezo devices of relatively complicated shapes and smaller dimensions [1,5,6]. EPD of piezo components is noted to be simple, cost effective, versatile and fast. EPD also allows for mass-production of devices, ranging in size from µm to cm in dimension. Technically, EPD is a colloidal process whereby ceramic bodies are shaped directly from a stable colloid powder suspension under a DC electric field. Generally, the colloid fabrication process consists of three stages: the formation of a charged suspension, the deposition of charged particles onto an electrode under a DC voltage and the final sintering of the deposited structure. Figure 9.1 shows the electrophoresis process schematically. A DC field causes the charged particles to move towards, and deposit on, the electrode of opposite charge. The depositing electrode reflects the shape of the ware required, and it is designed such that deposit release is facilitated.The investigation of electrophoretic deposition on piezoelectric or ferroelectric materials has existed for more than a decade [6]; however, the shape of the deposit

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Factors affecting the performance of piezoelectric bending actuators for advanced applications: an overview

Chen

2009

J Mater Sci

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Frequency dependence of piezoelectric vibration velocity

Cited by 20 publications

References 30 publications

Horn-Type Piezoelectric Ultrasonic Transducer: Modelling and Applications

Horn-Type Piezoelectric Ultrasonic Transducer: Modelling and Applications

Electrophoretic Deposition of Nanostructured Electroactive Materials

Factors affecting the performance of piezoelectric bending actuators for advanced applications: an overview

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