分析Banner邦納LE250UQ測距傳感器工作原理 |
點擊次數:309 更新時間:2023-05-24 |
分析(xi)Banner邦納LE250UQ測距(ju)傳感器工作(zuo)原理 首(shou)先超聲(sheng)波(bo)(bo)(bo)傳感器是(shi)一種(zhong)利用超聲(sheng)波(bo)(bo)(bo)的特(te)性(xing)研制而成的傳感器。超聲(sheng)波(bo)(bo)(bo)是(shi)一種(zhong)振(zhen)動頻(pin)率高(gao)于(yu)聲(sheng)波(bo)(bo)(bo)的機械波(bo)(bo)(bo),由換(huan)能晶片在電(dian)壓的激勵下發生振(zhen)動產生的,它(ta)具有(you)頻(pin)率高(gao)、波(bo)(bo)(bo)長短、繞(rao)射現象(xiang)小,特(te)別是(shi)方向(xiang)(xiang)性(xing)好、能夠成為(wei)射線而定向(xiang)(xiang)傳播等特(te)點。 作原理 超聲波測距(ju)傳(chuan)感器原理: 超(chao)(chao)聲(sheng)(sheng)波(bo)對(dui)液體、固(gu)體的(de)(de)穿(chuan)透本領很大,尤其是在陽光不透明的(de)(de)固(gu)體中,它(ta)可穿(chuan)透幾十米(mi)的(de)(de)深度。超(chao)(chao)聲(sheng)(sheng)波(bo)碰到(dao)雜(za)質或(huo)分界(jie)面會產(chan)生(sheng)顯(xian)著反射形成反射成回波(bo),碰到(dao)活動(dong)物體能(neng)產(chan)生(sheng)多普勒效(xiao)應。因(yin)此(ci)超(chao)(chao)聲(sheng)(sheng)波(bo)檢(jian)測(ce)廣泛應用在工業(ye)、國防、生(sheng)物醫學等方(fang)面以超(chao)(chao)聲(sheng)(sheng)波(bo)作為檢(jian)測(ce)手(shou)段,必(bi)須產(chan)生(sheng)超(chao)(chao)聲(sheng)(sheng)波(bo)和接收(shou)超(chao)(chao)聲(sheng)(sheng)波(bo)。完成這種功能(neng)的(de)(de)裝置就是超(chao)(chao)聲(sheng)(sheng)波(bo)傳(chuan)感器(qi),習慣上稱(cheng)為超(chao)(chao)聲(sheng)(sheng)換能(neng)器(qi),或(huo)者(zhe)超(chao)(chao)聲(sheng)(sheng)探(tan)頭。 工作(zuo)原理: 激(ji)光(guang)(guang)傳感器工作時,先由激(ji)光(guang)(guang)二極(ji)(ji)管(guan)對(dui)準目(mu)標(biao)發(fa)射激(ji)光(guang)(guang)脈(mo)沖。經(jing)目(mu)標(biao)反射后激(ji)光(guang)(guang)向各方向散射。部(bu)(bu)分散射光(guang)(guang)返回到傳感器接(jie)收(shou)器,被光(guang)(guang)學(xue)系統(tong)接(jie)收(shou)后成像到雪崩光(guang)(guang)電二極(ji)(ji)管(guan)上。雪崩光(guang)(guang)電二極(ji)(ji)管(guan)是一(yi)種內部(bu)(bu)具有放(fang)大(da)功能的(de)光(guang)(guang)學(xue)傳感器,因(yin)此(ci)它能檢測極(ji)(ji)其(qi)微弱(ruo)的(de)光(guang)(guang)信號(hao)。記錄并處理從光(guang)(guang)脈(mo)沖發(fa)出(chu)到返回被接(jie)收(shou)所經(jing)歷的(de)時間(jian),即可測定(ding)(ding)目(mu)標(biao)距離。激(ji)光(guang)(guang)傳感器必須(xu)極(ji)(ji)其(qi)精(jing)確地測定(ding)(ding)傳輸(shu)時間(jian),因(yin)為光(guang)(guang)速太快。 紅外線測距(ju)傳(chuan)感器工作原理(li): 紅(hong)(hong)(hong)(hong)(hong)外測(ce)距傳感(gan)器(qi)利用紅(hong)(hong)(hong)(hong)(hong)外信(xin)(xin)號遇(yu)到(dao)(dao)障礙物距離的(de)不同反射(she)的(de)強度也不同的(de)原理,進行障礙物遠近的(de)檢測(ce)。紅(hong)(hong)(hong)(hong)(hong)外測(ce)距傳感(gan)器(qi)具有一(yi)對紅(hong)(hong)(hong)(hong)(hong)外信(xin)(xin)號發(fa)射(she)與接(jie)(jie)收(shou)(shou)二極管(guan),發(fa)射(she)管(guan)發(fa)射(she)特(te)定頻率的(de)紅(hong)(hong)(hong)(hong)(hong)外信(xin)(xin)號,接(jie)(jie)收(shou)(shou)管(guan)接(jie)(jie)收(shou)(shou)這種頻率的(de)紅(hong)(hong)(hong)(hong)(hong)外信(xin)(xin)號,當紅(hong)(hong)(hong)(hong)(hong)外的(de)檢測(ce)方(fang)向遇(yu)到(dao)(dao)障礙物時,紅(hong)(hong)(hong)(hong)(hong)外信(xin)(xin)號反射(she)回(hui)來(lai)被接(jie)(jie)收(shou)(shou)管(guan)接(jie)(jie)收(shou)(shou),經過處理之后,通過數(shu)字傳感(gan)器(qi)接(jie)(jie)口返(fan)回(hui)到(dao)(dao)機器(qi)人主(zhu)機,機器(qi)人即可利用紅(hong)(hong)(hong)(hong)(hong)外的(de)返(fan)回(hui)信(xin)(xin)號來(lai)識別(bie)周圍環境的(de)變(bian)化 24GHZ雷達測距傳感器原理(li): FSK測運動物體(ti) FMCW測靜止和運動物體(ti) 上一篇:美國Banner邦納測距傳感器行業應用領域描述 下一篇:Banner邦納LE250UQ測距傳感器技術參數介紹 |