Piezoelectric Buzzer For Driver Circuit Built-in
The piezoelectric buzzers (for Driver Circuit Built-in) offer optimal sound, performance, and efficiency for all types of medical and industrial applications. Our piezo buzzers are constructed in a variety of sizes and work across varying frequencies which allows them to produce different sounds and tones. As voltage is applied to a piezo Buzzer, the piezoceramic disc vibrates, flexing with respect to input voltage to generate sound. Our piezo buzzers maintain low current draw which is advantageous for any battery operated device. Since piezo buzzers don`t have a magnet in their construction, it eliminates EMI/EMC issues.
Buzzer Alarm,Built In Piezoelectric Buzzer,High Frequency Alarm Buzzer,Constant Tone Buzzer For Alarm Jiangsu Huawha Electronices Co.,Ltd , https://www.hnbuzzer.com
I. Project Description:
Name Specification Model Unit Quantity Remarks Indoor two-color LED display See technical indicators, quality service requirements Set 1 With design, installation, commissioning
Second, technical indicators, quality service requirements
(1) Display system product configuration:
1, 2048 points display body (including drive components, according to the actual)
2, switching power supply: 5V/150W (according to the actual)
3, LED dedicated controller 1 set
4, communication cable 1
5, graphics card 1 block
6, video card 1 block
7, the computer (user-supplied)
8, 1 set of LED display application software
9, 1 set of 2D, 3D animation editing software
* The wire and auxiliary materials in this quotation are determined by the responding unit. If there is a shortage during the installation and commissioning process, the transaction unit will be responsible for it, and the purchaser will not increase the cost.
(2) Display specifications:
1. Light-emitting device: Φ3.0mm two-color tube, center spacing is 4.00mm, 8×8 dot matrix module, Taiwan Guanglei die;
2, the display arrangement: 448 rows × 576 columns = 258048 points;
3. Display size: 3.6m×1.8m=6.48m2;
4, the outer frame size: 3.7m × 1.9m = 7.03 m2;
5, pixel density: 62500 points / m2
6, frame material: matt stainless steel frame
(3) Technical indicators and functions:
1. The display adopts dynamic scanning with a duty ratio of 1/16;
2. The display can play various graphic and text information synchronously with the computer CRT;
3, the display can display public information (weather forecast, important news, important notices, VIP reception welcome words, etc.);
4. Editing function: It can edit Chinese and Western characters and graphics, and can make 2D and 3D animations. It can modify, rotate, copy, superimpose text, graphics, etc. It can also zoom in and out of graphics, characters and Chinese characters. Narrow down;
5, display function: In addition to the commonly used display function, it also has a special effect display function: such as moving, rotating, covering, pushing, fading in, fading out, etc., display form is rich;
6, display fonts and fonts: in the animation state can have Song, imitation Song, standard Song, black body, 楷 body, Wei monument, fine circle and other 30 fonts to choose from, the font can have 0 ~ 9 and custom font;
7. Video playback function, the system adopts multimedia technology, so that the display screen has a display system integrating sound, image and picture, and can broadcast TV programs, videos and video programs in real time.
8, the computer part of the system uses a general software and hardware platform, through the program settings, LED display can appear multi-window, animation and text overlay and other special display effects;
9, the display system has two-dimensional, three-dimensional animation editing functions;
10. Screen switching time: Company name: Suzhou Chuangjie Tendering Consulting Service Co., Ltd. Contact: Zhuang Tianyang Tel: 0512-65238891, 68669209 E-mail: Fax: 0512-65238892 Postal code: 215002 Address: Ganzhou West Road 399 Yinhai Building 303 
Indoor two-color LED display inquiry purchase announcement
Title: Indoor two-color LED display inquiry procurement announcement Tender No.: SZCJ2009-X-052 Announcement date: July 3, 2009 Deadline: July 7, 2009 Tendering agency: Suzhou City Highway Management Office Province: Jiangsu Province-Suzhou City Content: Suzhou Chuangjie Tendering Consulting Service Co., Ltd. is entrusted by the Highway Management Office of Suzhou City, Jiangsu Province to purchase and purchase the indoor two-color LED display. The qualified suppliers are welcome to attend.