汽車衡的工作原理是怎樣的?
發(fa)布時間:2020.08.07作者:超級(ji)管理員來源:本站點擊:280
SCS系列汽(qi)(qi)(qi)車衡(heng)作為(wei)新(xin)一代(dai)的(de)(de)模(mo)(mo)擬式(shi)(shi)汽(qi)(qi)(qi)車衡(heng),幾乎可以和(he)數字(zi)式(shi)(shi)汽(qi)(qi)(qi)車衡(heng)相媲美,采(cai)用分(fen)離式(shi)(shi)分(fen)離式(shi)(shi)數字(zi)接線盒,通過對模(mo)(mo)擬傳感器輸出的(de)(de)信號進行A/D轉換(huan),使接線盒到儀(yi)表的(de)(de)信號為(wei)數字(zi)信號,降低了(le)遙控的(de)(de)機會、受(shou)溫度(du)、射頻干(gan)擾(rao)的(de)(de)機會,同(tong)時也(ye)使傳輸距離比普通模(mo)(mo)擬式(shi)(shi)更遠,信號傳輸更加(jia)穩定。相對于數字(zi)式(shi)(shi)汽(qi)(qi)(qi)車衡(heng),造價略低,方(fang)便(bian)舊的(de)(de)模(mo)(mo)式(shi)(shi)汽(qi)(qi)(qi)車衡(heng)升級。
一(yi)、汽車衡基本內(nei)容
汽(qi)(qi)車衡也被稱(cheng)為地(di)磅(bang),英文為:truck scale 。是(shi)廠(chang)礦、商(shang)家等用于大宗(zong)貨(huo)物計量的(de)(de)主要稱(cheng)重設備。在(zai)二十(shi)世紀(ji)80年代之前常見的(de)(de)汽(qi)(qi)車衡一般是(shi)利用杠桿原(yuan)理純機械構(gou)造(zao)的(de)(de)機械式(shi)汽(qi)(qi)車衡,也稱(cheng)作機械地(di)磅(bang)。二十(shi)世紀(ji)80年代中期(qi),隨著高(gao)精(jing)度稱(cheng)重傳感器技術的(de)(de)日趨成熟,機械式(shi)地(di)磅(bang)逐漸被精(jing)度高(gao)、穩定性好(hao)、操作方便的(de)(de)電子汽(qi)(qi)車衡所取代。
汽(qi)(qi)車(che)(che)衡(heng)(heng)(heng)按(an)秤體結構可(ke)分(fen)(fen)為(wei):u型(xing)鋼(gang)汽(qi)(qi)車(che)(che)衡(heng)(heng)(heng)、槽鋼(gang)汽(qi)(qi)車(che)(che)衡(heng)(heng)(heng)、工字鋼(gang)汽(qi)(qi)車(che)(che)衡(heng)(heng)(heng)、鋼(gang)筋混凝(ning)土汽(qi)(qi)車(che)(che)衡(heng)(heng)(heng);按(an)傳感器可(ke)分(fen)(fen)為(wei)數字式(shi)汽(qi)(qi)車(che)(che)衡(heng)(heng)(heng)、模擬(ni)式(shi)汽(qi)(qi)車(che)(che)衡(heng)(heng)(heng)、全電(dian)子汽(qi)(qi)車(che)(che)衡(heng)(heng)(heng);汽(qi)(qi)車(che)(che)衡(heng)(heng)(heng)俗稱地磅。他們的基本配(pei)置是(shi)一(yi)樣(yang)的。都需要(yao)傳感器、接線盒(he)、打印機、稱重儀表,現如今的汽(qi)(qi)車(che)(che)衡(heng)(heng)(heng)可(ke)以配(pei)上電(dian)腦和稱重軟件。
汽車衡(heng)英文為:truck scale,所以(yi)在行業內就有(you)(you):scs系列之稱(cheng),常(chang)用(yong)規格有(you)(you):寬3~3.4長有(you)(you)6~24,稱(cheng)重(zhong)(zhong)范圍(wei)30T~200T有(you)(you)的廠家(jia)可以(yi)生產到250T汽車衡(heng)標準配置主要(yao)(yao)由承(cheng)重(zhong)(zhong)傳力機構(秤體(ti))、高精度稱(cheng)重(zhong)(zhong)傳感器、稱(cheng)重(zhong)(zhong)顯示儀(yi)表三大主件(jian)組成(cheng)(cheng)(cheng),由此(ci)即(ji)可完成(cheng)(cheng)(cheng)汽車衡(heng)基本(ben)的稱(cheng)重(zhong)(zhong)功能,也可根據(ju)不同用(yong)戶的要(yao)(yao)求,選(xuan)配打印機、大屏幕顯示器、電(dian)腦管理系統以(yi)完成(cheng)(cheng)(cheng)更高層次(ci)的數據(ju)管理及傳輸的需要(yao)(yao)。
承(cheng)重(zhong)(zhong)和傳(chuan)力機構(gou)——將物體的(de)重(zhong)(zhong)量傳(chuan)遞給稱重(zhong)(zhong)傳(chuan)感(gan)器的(de)機械平臺,常(chang)見有鋼(gang)結構(gou)及(ji)鋼(gang)混結構(gou)二(er)種型(xing)式。
高(gao)精度稱重傳感器——是(shi)汽(qi)車衡的核心部(bu)件(jian),起著將重量值轉換成(cheng)對應的可測(ce)電信號的作用,它的優劣(lie)性直接關(guan)系到整臺衡器的品質。
稱(cheng)重(zhong)顯(xian)示儀(yi)——用于測量(liang)傳感(gan)器傳輸的電信號,再通(tong)過專用軟件(jian)處理(li)顯(xian)示重(zhong)量(liang)讀數,并可將數據進一步傳遞至打印機、大屏幕(mu)顯(xian)示器、電腦管理(li)系統(tong)。
打印機:用于打印重量數據表(biao)單
大屏幕:用于遠距離讀數
電腦管(guan)理系統:用(yong)于重量數據的進(jin)一(yi)步處理、儲存、傳輸等。
二、結構組成
電子汽車(che)衡(heng)主要由承載器(qi)、稱重顯(xian)示儀表(biao)、稱重傳感器(qi)、連接件、限(xian)位裝臵及接線盒等零部件組成,還可以選配(pei)打印大屏幕顯(xian)示器(qi)、計算(suan)機和(he)穩壓電源等外(wai)部設備。
三、工作原理
被稱(cheng)重(zhong)(zhong)(zhong)物或載(zai)重(zhong)(zhong)(zhong)汽車臵(ge)于承(cheng)載(zai)器(qi)臺面(mian)上(shang),在重(zhong)(zhong)(zhong)力(li)作用下,通(tong)過承(cheng)載(zai)器(qi)將(jiang)(jiang)重(zhong)(zhong)(zhong)力(li)傳遞至稱(cheng)重(zhong)(zhong)(zhong)傳感器(qi),使稱(cheng)重(zhong)(zhong)(zhong)傳感器(qi)彈性體產生變形,貼附于彈性體上(shang)的應(ying)變計(ji)(ji)橋路失去(qu)平衡,輸(shu)(shu)出與重(zhong)(zhong)(zhong)量(liang)數(shu)值(zhi)成正(zheng)比例的電信(xin)號(hao),經線性放大器(qi)將(jiang)(jiang)信(xin)號(hao)放大。再經A/D轉換為(wei)數(shu)字(zi)信(xin)號(hao),由(you)儀(yi)表的微(wei)處理(li)機(CPU)對重(zhong)(zhong)(zhong)量(liang)信(xin)號(hao)進(jin)行處理(li)后直接顯示(shi)重(zhong)(zhong)(zhong)量(liang)數(shu)據(ju)。配(pei)臵(ge)打印(yin)機后,即可(ke)打印(yin)記錄稱(cheng)重(zhong)(zhong)(zhong)數(shu)據(ju),如果配(pei)臵(ge)計(ji)(ji)算機可(ke)將(jiang)(jiang)計(ji)(ji)量(liang)數(shu)據(ju)輸(shu)(shu)入計(ji)(ji)算機管理(li)系統(tong)進(jin)行綜合管理(li)。
利用(yong)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)應(ying)(ying)變(bian)(bian)片(pian)(pian)變(bian)(bian)形時其電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)也隨之(zhi)改變(bian)(bian)的原理(li)工作,主要(yao)由彈性(xing)元件(jian)、電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)應(ying)(ying)變(bian)(bian)片(pian)(pian)、測(ce)量電(dian)(dian)(dian)(dian)(dian)路和傳輸電(dian)(dian)(dian)(dian)(dian)纜4部分(fen)組成(cheng)。電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)應(ying)(ying)變(bian)(bian)片(pian)(pian)貼在彈性(xing)元件(jian)上,彈性(xing)元件(jian)受力(li)變(bian)(bian)形時,其上的應(ying)(ying)變(bian)(bian)片(pian)(pian)隨之(zhi)變(bian)(bian)形,并(bing)導致電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)改變(bian)(bian)。測(ce)量電(dian)(dian)(dian)(dian)(dian)路測(ce)出應(ying)(ying)變(bian)(bian)片(pian)(pian)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)的變(bian)(bian)化并(bing)變(bian)(bian)換為(wei)與外力(li)大小(xiao)成(cheng)比(bi)例的電(dian)(dian)(dian)(dian)(dian)信號(hao)輸出電(dian)(dian)(dian)(dian)(dian)信號(hao)經處理(li)后以數字形式顯(xian)示(shi)出被測(ce)物的質量。 稱重傳感(gan)器實際上是一(yi)種將質量信號(hao)轉換成(cheng)可測(ce)量的電(dian)(dian)(dian)(dian)(dian)信號(hao)輸出裝臵。
四、汽車衡適用行業
煤礦(kuang)、冶金、水(shui)泥、飼(si)料、化(hua)工、港口、電廠等(deng)各行業