超声波风速计的应用便利、,在很多领域都能灵活运用,广泛应用于城市环境监测、风力发电、气象监测、桥梁隧道、航海船舶、航空机场、各类风扇制造业、需要抽风排气系统的行业等。超声波风速风向仪的工作原理是利用超声波时差法来实现风速的测量。由于它很好地克服了机械式风速风向仪固有的缺陷,因而能全天候地、长久地正常工作,越来越广泛地得到使用.它将是机械式风速仪的强有力替代品。
一、产品概述超声波风速计的应用便利、,在很多领域都能灵活运用,广泛应用于城市环境监测、风力发电、气象监测、桥梁隧道、航海船舶、航空机场、各类风扇制造业、需要抽风排气系统的行业等。超声波风速风向仪的工作原理是利用超声波时差法来实现风速的测量。由于它很好地克服了机械式风速风向仪固有的缺陷,因而能全天候地、长久地正常工作,越来越广泛地得到使用.它将是机械式风速仪的强有力替代品。 二、系统结构及工作原理超声波的工作原理是利用超声波时差法来实现风速的测量。声音在空气中的传播速度,会和风向上的气流速度叠加。若超声波的传播方向与风向相同,它的速度会加快;反之,若超声波的传播方向若与风向相反,它的速度会变慢。因此,在固定的检测条件下,超声波在空气中传播的速度可以和风速函数对应。通过计算即可得到的风速和风向。由于声波在空气中传播时,它的速度受温度的影响很大;风速仪检测两个通道上的两个相反方向,因此温度对声波速度产生的影响可以忽略不计。用户可根据需要选择风速单位、输出频率及输出格式。也可根据需要选择加热装置(在冰冷环境下推荐使用)或模拟输出。 三、技术参数风速 | 测量范围 | 0~60 m/s | 启动风速 | 0.1m/s | 响应时间 | 1s | 分辨率 | 0.1m/s | 精度 | ±0.3m/s或±3%(0-30m/s,取较大者)±5%(30-60m/s) | 风向 | 测量范围 | 0-360° | 启动风速 | 0.1m/s | 准确度 | ±2° | 分辨率 | 0.1° | 空气温度 | 测量范围 | -30℃-70℃ | 精度 | ±0.3℃ | 空气湿度 | 测量范围 | 0-100%RH | 精度 | 4%RH | 大气压力 | 测量范围 | 50-110kpa | 精度 | ±1% | 压电雨量 | 测量范围 | 0-200mm/h | 精度 | <10% | 分辨率 | 0.1mm/0.2mm | 加热选配 | 加热电流 | 0.6~1A | 功耗 | 15~25W | 温控区间 | -30~60℃ | 基本参数 | 数字信号 | RS485 4-20mA | 波特率 | 9600,19200,38400等 | 电源电压 | 9~24VDC | 工作温度 | -30~60°C | 工作湿度 | 0~99%RH | 防护等 | IP66 |
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