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*2MHz PSnN-5
OD15*1MHz PZT-51
OD15*2MHz PZT-51
OD20*2MHz PZT-51
Size, Frequency and Electrode on request.
Piezoelectric Discs For Flowmeter Sensor Piezoelectric Ceramic Disc,Piezoelectric Disk Flow Meter,Piezoelectric Flow Sensor,Piezo Discs Flowmeter Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com
Software: 360 one-click root mobile version, download address: PermRoot.apk
Shooting artifact (MIUI system can be downloaded in the app store), non-MIUI system download address: cast screen artifact.apk
2. Android mobile terminal download and install millet screen artifact, will be a 360-key ROOT installation package copied to the phone storage or through mobile phone browser to visit: http://root.360.cn/firstPage, download directly to the phone. (just download, don't install);
3. Open the mobile phone millet screen cast artifact, will automatically scan the millet small box and complete the connection within the LAN;
4. Open screen casting artifact - application - local, find 360 one-button ROOT installation package and complete the installation; 
Xiaomi small box installation third-party application tutorial: click direct 
MIUI TV system is the strength of the millet box, the interface is very friendly, and the operation is very smooth. With the 11-button remote control, the function is more but the operation is simpler. However, many netizens complained that they could not customize the boot startup items during the use process and could not install the applications in one click. However, by learning the Xiaomi box (mini version of the millet box) ROOT tutorial, all the problems can be solved.
First, what is ROOT: root: simple understanding is to obtain "administrative authority" that is the highest authority of the box, after the acquisition is generally used to adjust the boot startup item (increase the speed of the box to start), open a key installation, automatic installation of batch applications , Batch automatic unloading, other useful for us. Therefore, it is recommended that ordinary white users operate with caution. After all, root is risky and operation must be careful!
Second, ROOT preparation: Hardware: Xiaomi small box, Android smart phone;
Third, millet box ROOT complete detailed video tutorial
In order to more intuitively demonstrate the ROOT small box ROOT the whole process, the sofa version of the main fat insect carefully recorded, edit detailed tutorials, thanks to the big fat insects.
For details, please see: http://bbs.shafa.com/thread-303106-1-1.html
Fourth, the small box ROOT text graphic steps: 1. The Android phone and millet box mini version (small box) connected in the same local area network;
Users who have used the Android system know that the more applications we have installed, the more applications are launched in the background, which will lead to high system memory usage after booting, affecting the system fluency, but after ROOT can be passed through the sofa butler - Toolbox - - Self-start management, limit the boot application, reduce memory usage, let you experience the general smooth flow of experience. However, Xiao Bian reminded everyone not to easily ban the system application, misuse may lead to the box can not boot; for their own installation of the application can be disabled, does not affect the system operation. Install 360 one-button ROOT
360 one-button ROOT installation completed
5.360 After ROOT is installed, you can open it on the TV side and open the screen shot artifact mouse mode or use Goku remote control.
Casting artifacts open mouse mode
Click "one click root" icon in mouse mode
360 one-button ROOT is ROOT
360 one-button ROOT has completed ROOT
In addition to the tutorials, Xiao Bian also prepared ROOT after using skills. If you want to read in depth, please read on:
5. What can Xiaomi Box ROOT do?
After the ROOT is completed, many netizens will ask: What operations can ROOT achieve? We can use the powerful management tool of the sofa butler to manage the box more effectively. If you have not yet installed the netizen, we recommend that you first install the sofa butler (small millet box to install the sofa butler tutorial: click through). The following small series will explain in detail for everyone. :
First need to enter the sofa housekeeper - toolbox - settings, set the super-privilege to "open" state, 360ROOT permission management during the opening process will remind whether to allow access to super rights, click on the permission to. After opening, you can enter other function operations;
Toolbox--setting
Super permission turns on
360ROOT rights management
Function 1: Limit boot from start application
Select the software that needs to be disabled
Click to disable
The application has been restricted from booting
Function 2: Uninstall the system with its own application
After the ROOT is completed, you can download the RE HD file manager on the sofa butler, and open the read/write permission. In the systerm--app folder, you will need to uninstall the system application file. The uninstall operation is not recoverable. It is recommended that you use it with caution. Especially small white users, Xiaomi small box does not have a flash drive package, if you accidentally delete the system application will cause the box to become a brick "can not be used, Xiaomi small box comes with not many applications, it is recommended not to operate this function. Don't make too much introduction here. Interested users can try it.
The millet box can successfully complete the ROOT during the testing process. The millet box enhanced version and the millet TV can be tested by others. After Xiaomi ROOT, we can use it more conveniently. Xiao Bian reminded again that ROOT is risky and operation should be cautious. Do not blindly delete the system's own application. Otherwise, the system may crash.
The last Xiaobian recommend sofa housekeeper "unique stunt" - a key to install, batch automatic uninstall (can also be achieved without ROOT)
Before the sofa manager 4.4.6 release, we need to install and uninstall the application requires a pop-up dialog step by step operation, and upgrade the latest version, you can enter the sofa butler - Toolbox - settings, the "one-click installation" is set to open State, so that when we install the application, just click on the "install" in the sofa butler to complete the download - the installation is completed automatically; when uninstalling the application is also a batch of automatic uninstall, enter the sofa butler - toolbox - application uninstall, After selecting the application to be uninstalled, click "Batch Uninstall" to uninstall all applications automatically at one time. There is a one-click installation that can give everyone a better experience. We can experience it. The opening method is as follows:
Go to Toolbox--Settings
Step by step to open a small box of millet to install
One-click installation has been opened
The sofa butler "one button installation" function is not all boxes, millet box during the small series test, millet TV can use the sofa butler to automatically install, batch automatic unloading function. If the box has an "Android Native Settings" APK, the sofa butler will automatically determine and display the "One Click Install" option in the Toolbox - Settings.
Millet Box More info: click through
This content is copyrighted exclusively by SofaNet. Welcome manufacturers to further exchanges and cooperation with us to create more in-depth product reports.
Smart TV box recommended to install sofa butler, download address: http://app.shafa.com/
Sofa Net is an Internet technology company specializing in smart TVs and boxes. It owns popular products such as sofa butlers, sofa tables, and sofa forums. It has been committed to providing high quality application resources for smart TV and TV box users and active community exchanges. And authoritative evaluation of smart TV products.