Wenglor威格勒超聲波傳感器數據分析
wenglor超聲波傳感器主要材(cai)料(liao)(liao)有(you)(you)(you)(you)壓電(dian)晶體（電(dian)致(zhi)伸(shen)縮）及鎳鐵(tie)鋁合金（磁致(zhi)伸(shen)縮）兩類。電(dian)致(zhi)伸(shen)縮的(de)(de)材(cai)料(liao)(liao)有(you)(you)(you)(you)鋯鈦酸鉛(qian)（PZT）等。壓電(dian)晶體組(zu)成的(de)(de)超(chao)(chao)聲(sheng)波(bo)(bo)傳(chuan)(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)是一(yi)種(zhong)可逆傳(chuan)(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)，它(ta)可以(yi)將電(dian)能(neng)轉(zhuan)變(bian)成機械振(zhen)蕩(dang)而產(chan)生(sheng)超(chao)(chao)聲(sheng)波(bo)(bo)，同時它(ta)接(jie)收(shou)到超(chao)(chao)聲(sheng)波(bo)(bo)時，也(ye)能(neng)轉(zhuan)變(bian)成電(dian)能(neng)，所(suo)以(yi)它(ta)可以(yi)分(fen)成發送器(qi)(qi)(qi)(qi)或接(jie)收(shou)器(qi)(qi)(qi)(qi)。有(you)(you)(you)(you)的(de)(de)超(chao)(chao)聲(sheng)波(bo)(bo)傳(chuan)(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)既(ji)作(zuo)發送，也(ye)能(neng)作(zuo)接(jie)收(shou)。這里僅(jin)介紹小型(xing)超(chao)(chao)聲(sheng)波(bo)(bo)傳(chuan)(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)，發送與接(jie)收(shou)略有(you)(you)(you)(you)差別，它(ta)適用(yong)(yong)(yong)(yong)于(yu)在空氣中(zhong)傳(chuan)(chuan)(chuan)播(bo)，工(gong)作(zuo)頻率(lv)一(yi)般(ban)為23-25KHZ及40-45KHZ。這類傳(chuan)(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)適用(yong)(yong)(yong)(yong)于(yu)測距、遙控、防盜(dao)等用(yong)(yong)(yong)(yong)途。該種(zhong)有(you)(you)(you)(you)T/R-40-60，T/R-40-12等（其(qi)中(zhong)T表(biao)(biao)(biao)示(shi)發送，R表(biao)(biao)(biao)示(shi)接(jie)收(shou)，40表(biao)(biao)(biao)示(shi)頻率(lv)為40KHZ，16及12表(biao)(biao)(biao)示(shi)其(qi)外(wai)徑尺寸(cun)，以(yi)毫米計）。另(ling)有(you)(you)(you)(you)一(yi)種(zhong)密(mi)封(feng)式(shi)超(chao)(chao)聲(sheng)波(bo)(bo)傳(chuan)(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)（MA40EI型(xing)）。它(ta)的(de)(de)特點是具有(you)(you)(you)(you)防水作(zuo)用(yong)(yong)(yong)(yong)（但不能(neng)放入水中(zhong)），可以(yi)作(zuo)料(liao)(liao)位(wei)及接(jie)近開關用(yong)(yong)(yong)(yong)，它(ta)的(de)(de)性能(neng)較好。超(chao)(chao)聲(sheng)波(bo)(bo)應用(yong)(yong)(yong)(yong)有(you)(you)(you)(you)三種(zhong)基本類型(xing)，透射型(xing)用(yong)(yong)(yong)(yong)于(yu)遙控器(qi)(qi)(qi)(qi)，防盜(dao)報警器(qi)(qi)(qi)(qi)、自動門、接(jie)近開關等；分(fen)離式(shi)反射型(xing)用(yong)(yong)(yong)(yong)于(yu)測距、液位(wei)或料(liao)(liao)位(wei)；反射型(xing)用(yong)(yong)(yong)(yong)于(yu)材(cai)料(liao)(liao)探傷、測厚等。
威格勒超聲波傳感器液位檢測原理：
超(chao)聲波(bo)測(ce)量(liang)液(ye)位的(de)基本(ben)原理(li)是：由超(chao)聲探頭(tou)發出的(de)超(chao)聲脈沖信(xin)號(hao)，在氣體(ti)中傳播(bo)，遇到空氣與液(ye)體(ti)的(de)界面后(hou)(hou)被反射，接(jie)收到回波(bo)信(xin)號(hao)后(hou)(hou)計算(suan)其超(chao)聲波(bo)往返的(de)傳播(bo)時(shi)間，即可換算(suan)出距離(li)或液(ye)位高度(du)。超(chao)聲波(bo)測(ce)量(liang)方法有很多其它方法不可比擬(ni)的(de)優(you)點：（1）無任(ren)何機械(xie)傳動(dong)部件，也不接(jie)觸被測(ce)液(ye)體(ti)，屬(shu)于非接(jie)觸式測(ce)量(liang)
計(ji)算公式為(wei)：
V=331.5+0.607T （1）
式中：V為超聲波在空氣中傳播速(su)度；T為環境溫度。
S=V ×t/2=V×（t1－t0）/2 （2）
BG2BSW1-08M
BG2SG2V1-2M
BG2SG2V3-2M
BG2V1P-N-2M
BG7SG2V1-2M
BG7SG7V1-2M
BG7V1P-N-2M
BG80-ME
Wenglor威格勒超聲波傳感器數據分析
