Letv 919 audience straight down 500 yuan, 40-inch super TV down to 1579 yuan, 919 full sell more than 382,000 super TV, Super TV can go home after buying live, on demand it? Because Super TV is very cheap, but it is bound to be a LeTV member, and this member is only watching video on demand and cannot watch live TV. LeTV's own application store can not directly download and install live broadcast, on-demand applications, many users are very headache, in the end how to watch live TV. This will give you a detailed tutorial. I hope you can help everyone: 1. Download an application market installation package, such as the current number of users, the best use of the sofa housekeeper (download address: http://), and copy and copy to the U disk; 2 will download the sofa housekeeper installation package into the U disk, insert the Super TV USB interface; then the TV open "LTV";
The Co-Al Co-doped Barium Titanate
Lead-free Piezoelectric Ceramics was successfully developed by Yuhai company
through repeated experiments. By Researching the influence of Co-Al Co-doping
on the structure and properties of Barium Titanate-based piezoelectric
ceramics, the formulation and preparation technology of Barium Titanate-based
piezoelectric ceramics were optimized. Yuhai`s BaTiO3 was prepared by conventional
solid-phase sintering method, with the piezoelectric constant d33 (>170pC/N),
dielectric loss tgδ≤0.5% and mechanical coupling coefficient Kp≥0.34.
Barium titanate lead-free piezoelectric
ceramics are important basic materials for the development of modern science
and technology, which was widely used in the manufacture of ultrasonic
transducers, underwater acoustic transducers, electroacoustic transducers,
ceramic filters, ceramic transformers, ceramic frequency discriminators, high
voltage generators, infrared detectors, surface acoustic wave devices,
electro-optic devices, ignition and detonation devices, and piezoelectric
gyroscope and so on.
Application: military, ocean, fishery, scientific research,
mine detection, daily life and other fields.
China Patent of Yuhai company`s BaTiO3
Chinese Patent No.: ZL 2011 1
0126758.6
Name: Lead-free Barium Titanate
Piezoelectric Material with Addition of Cobalt and Aluminum
Lead free piezo material BaTiO3
Lead-free Material
Properties
BaTiO3
Dielectric Constant
ɛTr3
1260
Coupling factor
KP
0.34
K31
0.196
K33
0.43
Kt
0.32
Piezoelectric coefficient
d31
10-12m/v
-60
d33
10-12m/v
160
g31
10-3vm/n
-5.4
g33
10-3vm/n
14.3
Frequency coefficients
Np
3180
N1
2280
N3
Nt
2675
Elastic compliance coefficient
Se11
10-12m2/n
8.4
Machanical quality factor
Qm
1200
Dielectric loss factor
Tg δ
%
0.5
Density
Ï
g/cm3
5.6
Curie Temperature
Tc
°C
115
Young's modulus
YE11
<109N/m3
119
Poison Ratio
0.33
Lead Free Piezoelectric Elements Piezo Element,Piezo Ceramic Elements,Piezoelectric Ceramic,Pzt Tubes Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com
LeTV how to watch TV live, free on-demand tutorial
Find the "Application" - "Tools" sofa assistant, and download and install;
3. Open the "Sofa Assistant" and find "File Management" --- Select U Disk --- Select "All Files", open the sofa butler installation package can be installed;
4. After opening the sofa butler, you can download all kinds of live broadcast, on-demand applications for free, not only can see live TV, tens of thousands of movies on demand, television dramas, animation and variety shows, you can also participate in sofa money exchange and sweepstakes Oh!
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