Article List
- Piezoelectric ceramics used in the medical ultrasoundMedical ultrasound transducer can be divided into diagnostic ultrasound and therapeutic ultrasound. Diagnostic ultrasound is ultrasonic frequency of 1 to 10 MHz.The low-energy form is applied to the clinic, mainly for the purpose of extracting biological information, and Pzt material stripe piezo ceHIFU Piezo information August 14, 2018
- Piezoelectric material is the core of the transducerThis section uses the PZT--5H piezoelectric ceramic material that has been polarized, using the filling method to PZT The material is cut into a piezoelectric ceramic of its polarization direction, and the cross-sectional area is square, and the column width is 36.03 um.The piezoelectric ceramic pilBasics of Piezoelectric Ceramics August 13, 2018
- study on acoustic characteristics of high frequency medical ultrasonic transducerResearching on acoustic transducer layer materials began in the 1980s. In 1998, Kim Yeonbo and Roh Yongrae uses the method of time domain analysis to theoretically give a suitable for broadband, it is high energy ultrasound structure of the energy device and the best acoustic impedance matching valuUltrasonic Transducer information August 12, 2018
- performance test of 1 - 3 type piezoelectric composite materialThe prepared l-3 type piezoelectric ceramics composite was tested using the Agllent E499lA RF impedance/material analyzer manufactured by Agilent. Compared to traditional network analyzers, the frequency impedance/material analyzer has a wide measurement range. The measurable frequency range is fromBasics of Piezoelectric Ceramics August 11, 2018
- Effect of piezoelectric phase on the density of 1 - 3 type piezoelectric compositesSince the its density of general piezoelectric material piezoelectric ceramics is often much higher than that of the non-piezoelectric phase (usually Polymer) the density of the material, so when the volume fraction of the piezoelectric phase increases, the density of the composite tends to the voluBasics of Piezoelectric Ceramics August 10, 2018
- Basic information of ultrasonic transducerUltrasonic transducers, what kind of pulses do they need to generate or obtain ultrasound? How to confirm the resonance frequency ?About ultrasonic transducer, the pulse required is a high-frequency pulse signal, and is determined by its driving frequency. As for the resonant frequency of the transUltrasonic Transducer information August 09, 2018
- High frequency focused piezoelectric ceramics transducerMain applications of high frequency high intensity focused ultrasound at home and abroad. With the development of transducer materials and mechanical fabrication techniques, the frequency of ultrasonic transducers is now increasing. In general, higher frequency sound waves can resolve finer biologicBasics of Piezoelectric Ceramics August 08, 2018
- Several major piezoelectric materials and propertiesSince 1880, French physicists P. Curie and J. Curie have discovered the Piezoelectric effect piezo element.The current piezoelectric effect materials can be roughly divided into three categories,it is piezoelectric single crystals, including ferroelectric Piezoelectric discs transducer,non-ferroelecBasics of Piezoelectric Ceramics August 07, 2018
- structure of piezoelectric ultrasonic transducerThe ultrasonic transducer is a sound pressure-electrical conversion device that can convert the surface acoustic energy and electrical energy.Since 1917, the French scientist Paul Langevin discovered the inverse piezoelectric effect, it is using quartz crystals as piezoelectric materials.The first pBasics of Piezoelectric Ceramics August 06, 2018
- High frequency focused ultrasound transducerThe propagation of vibration sensor in the medium is referred to as wave. There are two conditions for generating wave: vibration (generated by the wave source) and propagation (need to propagate the medium). According to the generation of fluctuations, it can be divided into mechanical waves and elUltrasonic Transducer information August 06, 2018