<s id="25vss"><font id="25vss"><noframes id="25vss"><track id="25vss"><noframes id="25vss"><sub id="25vss"><progress id="25vss"><center id="25vss"></center></progress></sub>
  • <track id="25vss"><li id="25vss"></li></track>
  • <nav id="25vss"><progress id="25vss"><nav id="25vss"></nav></progress></nav>
    <track id="25vss"></track>
    廣東奧迪威傳感科技有限公司
     
     
    News

    News

    Current position : Home > News > Product Information
    Cate

    High performance ultrasonic sensor for intelligent water meter

    2022-01-25 Product Information

    With the rapid development of Internet of things technology, the demand for high-performance ultrasonic sensor of ultrasonic intelligent water meter applied in intelligent buildings is becoming more and more obvious. In order to further improve the measurement performance of ultrasonic intelligent water meter, Audiowell has launched a new generation of water meter flow sensor -- US0078 from the perception layer. Compared with similar competitive products on the market, this product has more stable electrical performance and stronger pressure resistance. At the same time, it has the characteristics of high sensitivity, fast reaching the peak value and easier signal processing, which helps to improve the measurement accuracy of ultrasonic water meter, and provides a more competitive hardware basis for the iterative upgrade of ultrasonic intelligent water meter.

    水流量傳感器20220125.png

     Figure 1:Audiowell water meter flow sensor US0078

    Audiowell water flow sensor has high performance, which is mainly reflected in:

    1. high sensitivity, fast reaching the peak value and easier signal processing

    From the comparison analysis of echo between Audiowell water meter US0078 and similar sensors in Figure 2, it can be seen that Audiowell water meter flow sensor only needs 8 waves to reach the peak value and complete the vibration starting. Compared with other products with 12 waves to reach the peak value, the time of echo signal is shorter and the sensitivity is higher.

    Figure 2: Analysis of echo contrast between Audiowell US0078 (left) and similar sensor (right)

    水流量傳感器202201250102-1.jpg

    From the waveform, the difference between the peaks of the echo received by Audiowell US0078 is obvious, and the difference between adjacent signal waves is greater than the similar sensors. It is easy to identify the first, second, third or more recovered signal waves. Reducing the difficulty of signal processing at the perception level is conducive to simplifying the water meter measurement algorithm and laying the core hardware foundation for water meter R & D and manufacturing enterprises to reduce cost and increase efficiency.

    2. The electrical performance is highly stable at high and low temperature with zero flow drift

    Table 1 shows the comparison between the electrical performance of Audiowell US0078 and similar sensors in low temperature and high temperature environment. Under the condition of zero flow, Audiowell US0078 can receive 432mV in a low temperature environment of 10℃. In the high temperature environment of 60℃, the receiving amplitude is 369mV, and the amplitude change ratio is 14.64%. The amplitude change ratio of the other two similar competing products is 19.32% and 24.66% respectively, and the amplitude change ratio is significantly lower than the similar competing products in the market, indicating that its electrical performance is highly stable at high and low temperature zero flow drift value, and higher than the industry level.

    Table 1 :comparison of zero flow drift value of Audiowell us0078 and similar sensors in low temperature and high temperature environment.

    Project/Product

    Audiowell US0078

    Competitor A

    Competitor B

    Reception amplitude at low temperature(10℃)

    432mv

    360mv

    288mv

    Reception amplitude at high temperature(60℃)

    369mv

    290mv

    217mv

    Amplitude fluctuation ratio

    14.64%

    19.44%

    24.66%


    3. The maximum with stand voltage can reach 4.8mpa with strong reliability

    The static hydrostatic test was conducted on the flow sensor US0078 of Audiowell water meter. The test condition was to maintain the water pressure of 4.8mpa for 15min. Compared with various test parameters before and after the test, it was found that the product performance remained stable and met the specification requirements. In addition, Audiowell US0078 can work continuously under the environment of 2.5MPa for a long time to meet the needs of long building water use time, high peak water pressure and high pressure requirements.

    Table 2: performance parameters of flow sensor US0078 of Audiowell water meter

    Model

    US0078

    Resonant frequency

    2110±30KHz

    Resonant impedance

    60±30Ω

    Static capacitance

    600±20%pF

    Receive amplitude

    350~550mV

    Max.Input voltage

    5Vp-p

    Operating Pressure

    2.5Mpa

    Operating Temp

    0~+90℃

    Storage temperature

    -25~+90℃

     
    4. Small size, complied with the national drinking water standard

    Table 2 Performance parameters of Audiowell water meter flow sensor US0078 shows that the resonant frequency of the product is 2110±30KHz, which can meet the requirements of wide volume ratio water meter. Large working temperature range, temperature resistance up to 90 ℃, effective resistance to high and low temperature environment, suitable for regions with different latitudes. At the same time, the production materials of the products have passed the drinking water standards of various countries, such as WRAS, ACS, KTW, etc. In addition, the product must be tested one by one before leaving the factory to ensure that all performance parameters are within the specified range and have good consistency. Therefore, the product can be used in pairs without pairing test before assembly, which can effectively simplify the assembly process of intelligent water meter and improve the operation efficiency of water meter manufacturers.

    1643078319806626.png

    Fig.3: Dimensions and specifications of US0078 water flow sensor

    Figure 3 shows the overall dimensions of US0078 water flow sensor. The installation diameter is 10mm, the accuracy error is ± 0.2mm, the volume is small and the processing accuracy is high, which can effectively reduce the installation error.

    In general, the flow sensor US0078 of Audiowell water meter has high sensitivity and reaches the peak value quickly. The electrical performance is highly stable with zero flow drift value at high and low temperatures. The product is small in size, high appearance dimensional accuracy, reducing installation error, and has high and low temperature resistance, high humidity resistance, high pressure resistance and other characteristics, meet the requirements of wide range ratio water meter, product batch consistency, safety and health, and has been widely used in household, building, urban construction and other fields of intelligent water meter.

    Other products of Audiowell water meter flow Sensor:

    ModelUS0072US0075
    Resonant frequency1090±20 KHz955±20 KHz
    Resonant impedance35~120 Ω550±250  Ω
    Static capacitance1130±20%pF400±20%pF
    Receiving amplitude350~550mV290±70mV
    Max. input voltage5Vp-p5Vp-p
    Operating pressure2.5Mpa2.5Mpa
    Operating temperature0~+90℃0~+90℃



    Focus on us

    Contact Us

    +86-20-84802041 More
    Copyright ? 2021 AUDIOWELL All Rights Reserved  E-mail: inquire@audiowell.com  粵ICP備2021071924號  
     
    4438全国最大色倩网站,日本最大色倩网站WWW免费,亚洲国产AⅤ综合网_主页