The author recently learned that last year, the city's LED and related supporting industries achieved an output value of 6.5 billion yuan, a growth rate of 30%. It is worth mentioning that the scale of packaging enterprises continues to grow rapidly, lighting products and applications have made great progress, and have a strong market advantage, the industry scale is second only to Shenzhen in the province.
In order to further promote the LED industry to become bigger and stronger, this year, the city will launch the implementation of the “Ten Technology Projects†of Zhongshan LED Industry. Through the linkage of provinces, cities and towns, the key technologies of LED industry will be developed and industrialized as the key support areas. We will implement special demonstration projects and special projects for supporting enterprises in science and technology, carry out research on the roadmap of LED industry technology, and support townships and enterprises to carry out in-depth cooperation in production, education and research, and strengthen the construction of industrial common technology platforms.
Dong Cai, deputy director of the Municipal Science and Technology Bureau, told the reporter that this year the city's science and technology authorities will combine the current situation of the industry with the future technological development trends, focusing on LED chips and epitaxy, packaging, materials, products, engineering technology and packaging equipment. Market demand, industrial goals, technical barriers and other systems are analyzed to establish the near-term, medium- and long-term R&D needs of the industry, identify key common technology projects that have a major impact on the development of the industry, form a LED industry patent strategy analysis report, and develop the LED industry development in Zhongshan. Technology roadmap.
Piezoelectric ceramic disc
Quick delivery
High performance
Application: flow meter measurement
There are many kinds of USF used in closed pipeline according to the measuring principle, and the most commonly used are propagation time method and Doppler method. Among them, time difference ultrasonic flowmeter is used to measure fluid flow by the principle that the time difference of sound wave propagating downstream and countercurrent is proportional to the velocity of fluid flow. It is widely used in raw water measurement of rivers, rivers and reservoirs, process flow detection of petrochemical products, water consumption measurement of production process and other fields. According to practical application, time-difference ultrasonic flowmeter can be divided into portable time-difference ultrasonic flowmeter, fixed time-difference ultrasonic flowmeter and time-difference gas ultrasonic flowmeter.
Ultrasonic flow-meters use at least two transducers aligned so that ultrasonic pulses travel across the flow of liquid or gas in a pipe at a known angle to the flow.
Technical data:
Electromechanical coupling coefficient Kp: > 0.62
Dielectric Loss tg δ: <2%
Nominal Piezo discs for ultrasonic flowmeter:
OD14.2*1MHz PZT-51
OD14.6*1MHz PZT-51
OD15*1MHz PSnN-5
OD15*2MHz PSnN-5
OD20*1MHz PSnN-5OD20*2MHz PSnN-5
OD15*1MHz PZT-51
OD15*2MHz PZT-51
OD20*1MHz PZT-51OD20*2MHz PZT-51
Size, Frequency and Electrode on request.
Piezoelectric Discs For Flowmeter Sensor
Piezoelectric Ceramic Disc,Piezoelectric Discs For Flowmeter Sensor
Zibo Yuhai Electronic Ceramic Co., Ltd. , http://www.yhpiezo.com