隧道能见度检测器通常使用光学原理来测量隧道内的能见度。它通过发射一束光线并接收其反射或散射光信号,然后根据光信号的衰减程度来推算出隧道内的能见度。这种设备可以实时监测隧道内的能见度变化,并将数据传输到监控中心或显示屏幕上,供相关人员参考和决策。 一、产品简介 TH-SDN2隧道能见度检测器根据透射原理工作,发射/接收器和反射器相对安装,利用支架固定对准后,光学部件发出的高聚焦光束成为一条检测光束,安装距离间隔3米(往返双光路,实际检测光程为6米),由于尘埃的衰减,接收器得到信号后处理为测量值。根据我国《公路隧道通风照明设计规范》要求,装在隧道顶部或者侧壁上。 该智能检测仪内部自带补偿功能,在光学镜头在被污染情况,能自动进行增益补偿,从而保证了较长的维护周期。隧道是一种特殊的管状构造物,由于空间小,具有密闭性的特点,行经隧道的车辆所排放的废气,如不及时合理的排放出去,造成CO和悬浮颗粒物的聚集,将直接关系到行经隧道的车辆司乘人员和维护工作人员的人身安全。 TH-SDN2系列是设计用来在线采集VI/CO数据,提供给交通监管部门,为隧道通风及道路安全通行提供决策依据。 二、产品特点 1.可同时或者分别测量能见度(VI)和一氧化碳(CO); 2.高分辨率的能见度测量; 3.测量完全不受其它杂散光源的影响; 4.门针对隧道恶劣环境设计; 5.有效避免环境、过往车辆振动造成的无法测量; 6.安装、开机、维护费用低; 7.仪器自带状态显示、故障告警和数据存储功能,便于调试和设备维护; 8.多种输出方式,数据采集方便; 9.独有的补偿功能,保证了较长的维护周期; 10.非接触式、连续监测能见度; 11.使用了新微处理器技术,完全数字化运行. 三、技术参数 安装方式:壁挂安装 供电方式:AC220V 测量值:VI值:1/m,C O浓度:PPM 测量原理:光线投射法 测量范围:V I:0--15×10-3 1/m,CO:0--400PPM 测量距离:6米光路(探头安装距离3米) 精度:V I:±0.0001 1/m,CO:±1PPM 输出间隔:60 数字输出:RS485 模拟信号输出:两通道0/4mA-20mA(内部阻抗不大 于500Ω) 可靠性:平均无故障时间不小于5000小时 自动补偿功能:VI具备自我校准和自动零点功能 The tunnel visibility detector works based on the principle of transmission, with the transmitter/receiver and reflector installed relative to each other. After being fixed and aligned with a bracket, the highly focused beam emitted by the optical components becomes a detection beam, with an installation distance interval of 3 meters (round-trip dual optical path, actual detection optical path is 6 meters). Due to the attenuation of dust, the receiver obtains the signal and processes it into the measurement value. According to the requirements of the "Design Specification for Ventilation and Lighting of Highway Tunnels" in China, it is installed on the or side walls of the tunnel. The intelligent detector comes with a built-in compensation function, which can automatically perform gain compensation when the optical lens is contaminated, ensuring a longer maintenance cycle. A tunnel is a special tubular structure that, due to its small space and airtightness, emits exhaust gases from vehicles passing through the tunnel. If not discharged in a timely and reasonable manner, it can cause the accumulation of CO and suspended particles, which will directly affect the personal safety of vehicle drivers, passengers, and maintenance personnel passing through the tunnel. 原创作者:山东天合环境科技有限公司
标签:隧道能见度检测器 隧道COVI检测器 隧道能见度监测仪 能见度测量仪 智能检测仪
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