稱重傳感器靈敏度與衡器量程的關系

咱們在(zai)前(qian)面所舉(ju)的幾個比如(ru)，其稱重傳感(gan)器靈敏度(du)以S = 2mv / v 考(kao)慮的，如(ru)果靈敏度(du)S = 1mv / v 來考(kao)慮會怎么樣(yang)呢？對(dui)相同(tong)是選用(yong)單(dan)只稱重傳感(gan)器的衡器，咱們來比較一下(xia)：
稱重傳(chuan)感器(qi)(qi)靈敏度S = 1mv / v 時(shi)：鼓勵電壓V = 12V， zui大秤量Emax = 150kg， 衡器(qi)(qi)zui大秤量Max = 150kg，zui大凈(jing)輸出信(xin)號為：
鼓勵電(dian)(dian)壓(ya)× 靈(ling)敏度(du)(du)×EMmaxax= 12v × 1mv / v ×115500kkgg = 12mv稱(cheng)(cheng)重(zhong)(zhong)(zhong)傳(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)靈(ling)敏度(du)(du)S = 2mv / v 時(shi)：鼓勵電(dian)(dian)壓(ya)V = 12V， zui大(da)(da)(da)秤(cheng)(cheng)(cheng)量(liang)(liang)Emax = 300kg， 衡(heng)器(qi)(qi)(qi)(qi)(qi)zui大(da)(da)(da)秤(cheng)(cheng)(cheng)量(liang)(liang)，zui大(da)(da)(da)凈輸(shu)(shu)出(chu)信號為：鼓勵電(dian)(dian)壓(ya)× 靈(ling)敏度(du)(du)× MEmaxax= 12v × 2mv / v ×310500kkgg = 12mv如(ru)果這(zhe)(zhe)(zhe)只(zhi)(zhi)靈(ling)敏度(du)(du)S = 1mv / v 的(de)(de)(de)(de)稱(cheng)(cheng)重(zhong)(zhong)(zhong)傳(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)zui小靜載荷Emin = 6kg，當(dang)準確(que)度(du)(du)等(deng)級為C3 級，即，nLC = 3000 時(shi)，有檢(jian)(jian)定分(fen)(fen)度(du)(du)值(zhi)V = Emaxn-LCEmin = 1503k0g0-0 6kg = 0. 048kg而如(ru)前所述臺(tai)秤(cheng)(cheng)(cheng)的(de)(de)(de)(de)檢(jian)(jian)定分(fen)(fen)度(du)(du)值(zhi)e = 0. 05kg。這(zhe)(zhe)(zhe)樣(yang)，稱(cheng)(cheng)重(zhong)(zhong)(zhong)傳(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)檢(jian)(jian)定分(fen)(fen)度(du)(du)值(zhi)和衡(heng)器(qi)(qi)(qi)(qi)(qi)分(fen)(fen)度(du)(du)值(zhi)，在S = 1mv / V 的(de)(de)(de)(de)前提下，基本是(shi)(shi)(shi)(shi)挨(ai)(ai)近了。從而咱們能夠(gou)看出(chu)，當(dang)稱(cheng)(cheng)重(zhong)(zhong)(zhong)傳(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)響應（輸(shu)(shu)出(chu)）的(de)(de)(de)(de)改變(bian)與相應的(de)(de)(de)(de)鼓勵（施(shi)加的(de)(de)(de)(de)載荷）的(de)(de)(de)(de)改變(bian)之(zhi)比(bi)，只(zhi)(zhi)要是(shi)(shi)(shi)(shi)不(bu)大(da)(da)(da)于S = 1mv / v，nLC&ne 的(de)(de)(de)(de)規(gui)則才是(shi)(shi)(shi)(shi)能夠(gou)建立(li)的(de)(de)(de)(de)。單只(zhi)(zhi)稱(cheng)(cheng)重(zhong)(zhong)(zhong)傳(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)衡(heng)器(qi)(qi)(qi)(qi)(qi)在電(dian)(dian)子衡(heng)器(qi)(qi)(qi)(qi)(qi)中采用(yong)單只(zhi)(zhi)稱(cheng)(cheng)重(zhong)(zhong)(zhong)傳(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)作為力電(dian)(dian)轉化元件的(de)(de)(de)(de)比(bi)如(ru)許(xu)(xu)多，大(da)(da)(da)致(zhi)能夠(gou)分(fen)(fen)為二類(lei)，一類(lei)是(shi)(shi)(shi)(shi)稱(cheng)(cheng)重(zhong)(zhong)(zhong)傳(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)zui大(da)(da)(da)秤(cheng)(cheng)(cheng)量(liang)(liang)（Emax）大(da)(da)(da)于衡(heng)器(qi)(qi)(qi)(qi)(qi)zui大(da)(da)(da)秤(cheng)(cheng)(cheng)量(liang)(liang)（Max）的(de)(de)(de)(de)量(liang)(liang)值(zhi)許(xu)(xu)多的(de)(de)(de)(de)；一類(lei)是(shi)(shi)(shi)(shi)稱(cheng)(cheng)重(zhong)(zhong)(zhong)傳(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)zui大(da)(da)(da)秤(cheng)(cheng)(cheng)量(liang)(liang)（Emax ) 的(de)(de)(de)(de)量(liang)(liang)值(zhi)挨(ai)(ai)近衡(heng)器(qi)(qi)(qi)(qi)(qi)zui大(da)(da)(da)秤(cheng)(cheng)(cheng)量(liang)(liang)（Max）的(de)(de)(de)(de)量(liang)(liang)值(zhi)的(de)(de)(de)(de)。這(zhe)(zhe)(zhe)兒講的(de)(de)(de)(de)這(zhe)(zhe)(zhe)二類(lei)稱(cheng)(cheng)重(zhong)(zhong)(zhong)傳(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)靈(ling)敏度(du)(du)都(dou)是(shi)(shi)(shi)(shi)在相同大(da)(da)(da)小的(de)(de)(de)(de)情況下進(jin)行比(bi)較的(de)(de)(de)(de)。