Application and characteristics of focused ultrasound:The low-frequency concave-convex piezoelectric ceramic transducer has been theoretically and finite-element-analyzed. The transducer has the characteristics of low resonance frequency, small impedance, high emission voltage response, small 360-de

Do you know the amount of electricity on a piezoelectric ceramic chip and how to calculate it?Capacitance and comparison of piezoelectric ceramic chip 1. Can piezoelectric ceramic crystal be called a buzzer?The piezoelectric ceramic crystal can be vibrated and sounded by the AC electric field after

The use of HIFU piezo ceramic to treat local tumors, how to enhance the treatment effect and minimize the radiation damage to healthy areas is an important issue. In response to this problem, many researchers have designed and developed some new transducers. Some researchers have proposed to use mul

At present, the methods for studying the sound field of HIFU piezo ceramic mainly include experimental measurement methods and numerical simulation methods.The methods for measuring high-intensity ultrasonic sound fields are mainly hydrophones, ultrasonic radiation balances and fiber optic sensors.t

The principle of HIFU piezo ceramic tumor treatment is to concentrate the ultrasound energy into the disease tissue by a certain focusing method.due to the strong energy deposition of the focal point, makes the focal region in a short time (0.5-5s).The target tissue temperature rises above 60C, whic

HIFU piezo ceramic technology as a new clinical treatment method, mainly including extracorporeal shock wave lithotripsy (ESWL)therapy, HIFU tumor treatment and extracorporeal shock wave lithotripsy (ESWL) treatment technology. Extracorporeal shock wave lithotripsy is the use of ultrasound or lo

A new type two-dimensional spherical crown array is designed. Based on the self-built sound field platform, the sound field characteristics of the model are studied. Finally, the structure characteristic parameters F-number, arrangement and other structures of the array are found. The characteristic

Ontison ultrasonic beam analysis test system is based on the working principle of laser stripe photography, it is quite real-time photo recording of the sound field generated by the ultrasonic probe in the medium, dedicated to the acquisition of ultrasonic underwater.A separate system of corrugated

In this section, we designed a HIFU piezo ceramic treatment array with 125 channels and the array column structure was simulated by sound field, and the theoretical analysis of the array was continuous with the excitation signal at the frequency 2MHz. the result of single-point focusing under the st

In the manufacturing of diagnostic ultrasonic transducers, in order to improve the sensitivity of the probe detection signal, the resolution of the imaging .As well as better fixing the probe array, engineers will design solid-state acoustic matching components for the probe, such as matching layer

The designing parameters of the HIFU piezo ceramic directly affect the performance and production cost of the system. This paper is based on the existing hardware foundation of the laboratory, based on the spherical crown ultrasonic array model, the basic design of the probe parameters is proposed.

In order to achieve quantitative analysis of the sound field characteristics of the HIFU piezo ceramic treatment probe in the single focus scanning mode, The following three key acoustic field characteristics are studied.

The multi-spherical crown HIFU piezo ceramic treatment probe is a complex structure. When is designing the probe, We need to determine a lot of design parameters, including the number of array elements, the arrangement of array elements, the frequency,The array size and the radius of curvature of th

In the manufacturer of piezoelectric ceramic sheets, the fabrication cost of a large-aperture curved self-focusing piezoelectric ceramic sheet can be up to 10000 yuan. The manufacturing of a single chip small-area planar piezoelectric ceramic requires only tens of dollars to several hundred yuan. An