Today's headlines
Recently, a color-changing LED bulb called “Helium†on the kickstarter has attracted attention. It can display colors from 2000K to 8000K, and display different brightness colors in the most suitable time through the mechanism of time, sensor and application calculation. To help you work and sleep better.
In addition to integrating 802.11 b/g/n Wi-Fi and Bluetooth 4.0LE connectivity, Helium also integrates Li-Fi technology, which means that Helium is a wireless extender that helps you remove wireless dead ends from your home. The price is about RMB 265 and is expected to be listed in October 2017.
hot news
1. The wave of “diversification†in the post-LED lighting era
Recently, Nobel Prize winner in physics, "the father of Blu-ray LED", Nakamura Shuji and others visited Shenzhen, hoping to get support from Shenzhen, through the core device module of laser lighting, to promote the upstream and downstream enterprises of the industrial chain, while pulling Industrial funds form a gathering of talents, patents and markets.
2, silicon substrate, high power, there is a future?
Announces the launch of the new 7070 high-power LED family, leveraging its proprietary silicon-based gallium nitride MaGIC technology to deliver high power and improved thermal performance in a custom aluminum nitride ceramic lens package with low thermal resistance of less than 2°CW -1.
3, bright colors, is the pursuit of LED light quality
Citizen has developed the second-generation CITILED Vivid series of high-color LED products for lighting LEDs, which improves the chroma more vividly than the original color, and the color ratio of the first generation is increased by 2 times. It is expected to be mass-produced in the spring of 2017.
4. How to restrict unqualified lamps from entering the market?
Recently, the Beijing Municipal Administration of Industry and Commerce released quality inspection results, and there are 12 batches of LED lighting fixtures such as Foshan Lighting, Songwei Lighting and Kesi Baili, which have quality problems, mainly including disturbance voltage, anti-shock protection, harmonic current and other projects. Does not meet the relevant standards.
5, from automation to digital factory, is step by step
Recently, the organization named MIRDC in Taiwan issued a draft communication protocol based on LED manufacturing equipment, which is used to provide standards for big data interaction and analysis between LED equipment and factory information systems to minimize human factors. The problem is wrong.
6, the LED industry has never lacked the topic and "black horse"
Following the announcement of Oss's three-year total of 8.695 billion yuan orders earlier this year, a company named Jiangsu Miyou Optoelectronics recently signed a lighting energy-saving renovation agreement with CNNS Malaysia.
Yuhai piezo materials include : hard piezo material, soft piezo material and lead free piezo material
Soft piezo material exhibits: larger piezoelectric constants, higher permittivity, larger dielectric constants, higher dielectric losses, larger electromechanical coupling factors, low mechanical quality factors, a lower coercive field, poor linearity, and is easier to depolarize. The ideal application of soft piezo materials is sensing needs. Yuhai soft pizeo materials are PZT-5, PZT-5H, PSnN-5 and PLiS-51.
Hard piezo material exhibits: smaller piezoelectric constants, lower permittivity, smaller dielectric constants, lower dielectric losses, smaller electromechanical coupling factors, high mechanical quality factors, a higher coercive field, better linearity, and is harder to depolarize. The ideal application of hard piezo materials is high power transducer needs. Yuhai hard pizeo materials are PZT-4, PZT-8, PCrN-4 and PBaS-4.
Yuhai company developped lead free piezo material BaTiO3 and apply for the Chinese Patent in 2011, to meet the needs of environmental protection in today's society.
Piezoelectric ceramic material
Properties and Classification
General description of material properties
Material Code
Properties
Application
Soft PZT ceramic
PZT-51
Characteristics:
larger piezoelectric constants, higher permittivity, larger dielectric
constants, higher dielectric losses, larger electromechanical coupling
factors, low mechanical quality factors, a lower coercive field, poor
linearity, and is easier to depolarize.
low-power ultrasonic transducers
PZT-52
low-frequency sound transducers
PZT-53
applications with high g coefficient, for example,
PZT-5H
microphones,vibration pickups with preamplifier
PLiS-51
low-frequency vibration measurements
PMgN-51
Hydrophones, transducers in medical diagnostics
PSnN-5
Actuators
Hard PZT ceramic
PZT-41
Characteristics: smaller
piezoelectric constants, lower permittivity, smaller dielectric
constants, lower dielectric losses, smaller electromechanical coupling
factors, high mechanical quality factors, a higher coercive field,
better linearity, and is harder to depolarize.
PZT-42
High-power acoustic applications
PZT-43
Hydroacoustics, sonar technology
PZT-82
piezomotor
PCrN-4
PBaS-4
Lead free piezo ceramic
BaTiO3
Characteristics: Low density, low curie temperature, lead free.
Ultrasonic transducers suitable for low-temperature underwater, for example ultrasonic transducer in fishfinder
Piezoelectric Material,Piezo Ceramic Element,Piezo Electric Cylinder ,Piezo Sphere
Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com