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            <h1 id="inside_rnewtil">不锈钢探头热式风速变送器的功能作用都有哪些？</h1>
            <div class="inside_rnewtime">更新时间：2021-07-14  &nbsp;&nbsp;点击次数：4860次</div>
            <div class="inside_rnewcon"><div><span style="font-size: 16px;">　<strong><a href="http://www.wohuayiqi.com/Products-25718555.html" target="_blank">不锈钢探头热式风速变送器</a></strong>是一种高精度的不锈钢探头热式风速变送器，对风速有灵敏的响应度，即使是接近0m/s空气速率依然能够准确测量。不锈钢探头热式风速变送器在24Vac/Vdc供电下，提供0 ~ 10V、4 ~ 20mA开关选择的标准信号输出，输出信号与风速为线性关系。此外变送器还提供RS485通信方式，采用标准Modbus通讯协议，方便用户通过数字通信的方式读取风速值。不锈钢探头热式风速变送器的探头是采用新的工艺制成的热膜风速元件，与利用一般温度传感器或NTC热敏电阻技术的传统风速计相比，具有更明显的技术优势，且抗振和抗污染能力十分优秀、可靠性也远远高于传统的热线风速计，具有很高的长期稳定性。</span></div><div><span style="font-size: 16px;">　　不锈钢探头热式风速变送器功能特点</span></div><div><span style="font-size: 16px;">　　1 不锈钢皮托管耐温（450℃）， 标配变送器主机： LCD 显示，零位现场可调，</span></div><div><span style="font-size: 16px;">　　满度现场可调。</span></div><div><span style="font-size: 16px;">　　2 稳定性好，满度、零位长期稳定性可达 1%FS/年。主机在补偿温度 0～70℃</span></div><div><span style="font-size: 16px;">　　范围内，温度飘移低于 1%FS，在整个允许工作温度范围内低于 1%FS。</span></div><div><span style="font-size: 16px;">　　3 具有反向保护、限流保护电路，在安装时正负极接反不会损坏变送器，异常</span></div><div><span style="font-size: 16px;">　　时变送器会自动限流在 35mA 以内。</span></div><div><span style="font-size: 16px;">　　4 固态结构，无可动部件，高可靠性，使用寿命长。</span></div><div><span style="font-size: 16px;">　　5 安装方便、结构简单、经济耐用。</span></div><div><span style="font-size: 16px;">　　不锈钢探头热式风速变送器（风速传感器）根据应用场合的不同设计了多种安装方式结构，用户选择合适的安装方式结构，可以方便地将变送器固定在被测气流位置，以获得稳定的信号输出。此外，我们也提供可定制长度的探杆和线缆。</span></div><div><span style="font-size: 16px;">　　利用激光技术进行测量的传感器。传感器它由激光器、激光检测器和测量电路组成。激光传感器是*测量仪表，它的优点是能实现无接触远距离测量，速度快，精度高，量程大，抗光、电干扰能力强等。激光传感器工作时，先由激光发射二极管对准目标发射激光脉冲。经目标反射后激光向各方向散射。部分散射光返回到传感器器，被光学系统接收后成像到雪崩光电二极管上。雪崩光电二极管是一种内部具有放大功能的光学传感器，因此它能检测极其微弱的光信号，并将其转化为相应的电信号。敏感元件直接感受被测量，并输出与被测量有确定关系的物理量信号；转换元件将敏感元件输出的物理量信号转换为电信号；变换电路负责对转换元件输出的电信号进行放大调制；转换元件和变换电路一般还需要辅助电源供电。</span></div></div>
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