超聲波風(fēng)速計(jì)的應(yīng)用便利、,在很多領(lǐng)域都能靈活運(yùn)用,廣泛應(yīng)用于城市環(huán)境監(jiān)測(cè)、風(fēng)力發(fā)電、氣象監(jiān)測(cè)、橋梁隧道、航海船舶、航空機(jī)場(chǎng)、各類(lèi)風(fēng)扇制造業(yè)、需要抽風(fēng)排氣系統(tǒng)的行業(yè)等。超聲波風(fēng)速風(fēng)向儀的工作原理是利用超聲波時(shí)差法來(lái)實(shí)現(xiàn)風(fēng)速的測(cè)量。由于它很好地克服了機(jī)械式風(fēng)速風(fēng)向儀固有的缺陷,因而能全天候地、長(zhǎng)久地正常工作,越來(lái)越廣泛地得到使用.它將是機(jī)械式風(fēng)速儀的強(qiáng)有力替代品。
一、產(chǎn)品概述超聲波風(fēng)速計(jì)的應(yīng)用便利、,在很多領(lǐng)域都能靈活運(yùn)用,廣泛應(yīng)用于城市環(huán)境監(jiān)測(cè)、風(fēng)力發(fā)電、氣象監(jiān)測(cè)、橋梁隧道、航海船舶、航空機(jī)場(chǎng)、各類(lèi)風(fēng)扇制造業(yè)、需要抽風(fēng)排氣系統(tǒng)的行業(yè)等。超聲波風(fēng)速風(fēng)向儀的工作原理是利用超聲波時(shí)差法來(lái)實(shí)現(xiàn)風(fēng)速的測(cè)量。由于它很好地克服了機(jī)械式風(fēng)速風(fēng)向儀固有的缺陷,因而能全天候地、長(zhǎng)久地正常工作,越來(lái)越廣泛地得到使用.它將是機(jī)械式風(fēng)速儀的強(qiáng)有力替代品。 二、系統(tǒng)結(jié)構(gòu)及工作原理超聲波的工作原理是利用超聲波時(shí)差法來(lái)實(shí)現(xiàn)風(fēng)速的測(cè)量。聲音在空氣中的傳播速度,會(huì)和風(fēng)向上的氣流速度疊加。若超聲波的傳播方向與風(fēng)向相同,它的速度會(huì)加快;反之,若超聲波的傳播方向若與風(fēng)向相反,它的速度會(huì)變慢。因此,在固定的檢測(cè)條件下,超聲波在空氣中傳播的速度可以和風(fēng)速函數(shù)對(duì)應(yīng)。通過(guò)計(jì)算即可得到的風(fēng)速和風(fēng)向。由于聲波在空氣中傳播時(shí),它的速度受溫度的影響很大;風(fēng)速儀檢測(cè)兩個(gè)通道上的兩個(gè)相反方向,因此溫度對(duì)聲波速度產(chǎn)生的影響可以忽略不計(jì)。用戶(hù)可根據(jù)需要選擇風(fēng)速單位、輸出頻率及輸出格式。也可根據(jù)需要選擇加熱裝置(在冰冷環(huán)境下推薦使用)或模擬輸出。 三、技術(shù)參數(shù)風(fēng)速 | 測(cè)量范圍 | 0~60 m/s | 啟動(dòng)風(fēng)速 | 0.1m/s | 響應(yīng)時(shí)間 | 1s | 分辨率 | 0.1m/s | 精度 | ±0.3m/s或±3%(0-30m/s,取較大者)±5%(30-60m/s) | 風(fēng)向 | 測(cè)量范圍 | 0-360° | 啟動(dòng)風(fēng)速 | 0.1m/s | 準(zhǔn)確度 | ±2° | 分辨率 | 0.1° | 空氣溫度 | 測(cè)量范圍 | -30℃-70℃ | 精度 | ±0.3℃ | 空氣濕度 | 測(cè)量范圍 | 0-100%RH | 精度 | 4%RH | 大氣壓力 | 測(cè)量范圍 | 50-110kpa | 精度 | ±1% | 壓電雨量 | 測(cè)量范圍 | 0-200mm/h | 精度 | <10% | 分辨率 | 0.1mm/0.2mm | 加熱選配 | 加熱電流 | 0.6~1A | 功耗 | 15~25W | 溫控區(qū)間 | -30~60℃ | 基本參數(shù) | 數(shù)字信號(hào) | RS485 4-20mA | 波特率 | 9600,19200,38400等 | 電源電壓 | 9~24VDC | 工作溫度 | -30~60°C | 工作濕度 | 0~99%RH | 防護(hù)等 | IP66 |
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