Installation process 1 Modify the TV's DNS or router's DNS → 2 into the application store → 3 recommended to find the sofa housekeeper → 4 installation is successful
Steps: After modifying the DNS of the TV or the DNS of the router, visit the official own application store to install the sofa butler.
1. In the settings page, enter the network settings

2. Select the IP settings in the WiFi network settings.


3. Check Use static IP, change the DNS1 address to 180.150.178.32, click OK

4. After the IP configuration is completed, enter the App Store and you will find the big picture recommend the sofa butler. (Maybe you need to open "App Store" to try several times)

5. Click on the free download and run the sofa butler when the download is complete.


Note for installing butler:
If you use the sofa butler to download the application, it stays in the installation state, or you are prompted to "Prohibit the installation of unknown sources."
Please turn on the automatic installation in “Settings†of the sofa butler kit, or try to plug in an external SD card and try again.
After installing successfully enter my application - find - sofa manager

If the installation fails, restart the device and try again by following the steps (may be useful). Still have questions please add the following sofa butler official QQ group.
Download the TV application and recommend the best application market sofa butler on Smart TV. Watch videos on smart TVs and recommend using pudding videos. Fun smart TV (and box), exciting content in the sofa forum.
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