這個問題(ti)已經成為選購(gou)地(di)(di)(di)磅(bang)的(de)(de)關鍵因素之(zhi)一(yi)。地(di)(di)(di)磅(bang)按秤(cheng)(cheng)體結構可分為:工字鋼地(di)(di)(di)磅(bang)、T型(xing)梁(liang)地(di)(di)(di)磅(bang)、U型(xing)鋼地(di)(di)(di)磅(bang)、槽鋼地(di)(di)(di)磅(bang)、鋼筋(jin)混凝(ning)土地(di)(di)(di)磅(bang)(俗名水泥秤(cheng)(cheng)。使秤(cheng)(cheng)體可以承受(shou)高強(qiang)度(du)的(de)(de)力(li),且面板不易被壓裂,秤(cheng)(cheng)體強(qiang)度(du)優于U型(xing)鋼結構.在保證稱重強(qiang)度(du)的(de)(de)條(tiao)件下(xia),減少原材(cai)料使用(yong),。一(yi)致性(xing),互換性(xing)好,多(duo)只傳(chuan)感(gan)器并聯組秤(cheng)(cheng)后(hou),可用(yong)軟(ruan)件方法實(shi)現(xian)線性(xing),修正及(ji)性(xing)能(neng)補償,減少系(xi)統誤差(cha),簡化了秤(cheng)(cheng)體的(de)(de)現(xian)場安裝調(diao)試,標定,調(diao)整;
槽(cao)鋼(gang)秤(cheng)體底部(bu)有兩道撐重梁(liang),底部(bu)有封(feng)板可起到(dao)張力(li)作(zuo)用(yong)(yong)。但(dan)槽(cao)鋼(gang)秤(cheng)等于是用(yong)(yong)鋼(gang)板拼(pin)湊上(shang)去的(de),中間是空的(de),撐重性(xing)能較差。稱重傳感器(qi),是地(di)磅的(de)部(bu)件,起著將(jiang)重量值(zhi)轉換成對應的(de)可測電信號的(de)作(zuo)用(yong)(yong),傳感器(qi)的(de)優劣直接關系到(dao)整臺地(di)磅的(de)品質(zhi)。按(an)稱量方式分為(wei)靜態(tai)汽(qi)車衡和(he)(he)動態(tai)地(di)磅;按(an)安(an)裝方式可分為(wei)地(di)上(shang)衡和(he)(he)地(di)中衡;按(an)秤(cheng)臺結構(gou)分為(wei)鋼(gang)結構(gou)臺面和(he)(he)混凝土臺面;
這(zhe)個問題已經(jing)成為選購地磅(bang)(bang)的關鍵(jian)因素(su)之一。地磅(bang)(bang)按(an)秤體結構可分為:工(gong)字(zi)鋼(gang)地磅(bang)(bang)、T型梁地磅(bang)(bang)、U型鋼(gang)地磅(bang)(bang)、槽鋼(gang)地磅(bang)(bang)、鋼(gang)筋混凝土地磅(bang)(bang)(俗名水泥秤。而(er)數(shu)(shu)字(zi)式(shi)傳(chuan)(chuan)感器(qi)的輸出信號(hao)均(jun)在3-4V左右(you),其抗干(gan)擾(rao)能力遠大于模擬信號(hao)數(shu)(shu)百倍,解(jie)決(jue)傳(chuan)(chuan)輸信號(hao)弱及(ji)干(gan)擾(rao)問題;模擬式(shi)傳(chuan)(chuan)感器(qi)的輸出信號(hao)一般在數(shu)(shu)十毫伏,在電纜傳(chuan)(chuan)輸這(zhe)些弱信號(hao)過程中,很(hen)容(rong)易受(shou)到干(gan)擾(rao),從而(er)造(zao)成系(xi)統(tong)工(gong)作(zuo)不穩定或計量(liang)準確(que)性降低。