失(shi)(shi)重(zhong)(zhong)式(shi)喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)由料(liao)(liao)(liao)(liao)(liao)(liao)斗(dou)、喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)器(qi)(qi)(qi)(qi)(qi)(qi)（单、双(shuang)轴螺(luo)旋喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)器(qi)(qi)(qi)(qi)(qi)(qi)）、称重(zhong)(zhong)体系和调节器(qi)(qi)(qi)(qi)(qi)(qi)组成，在操作(zuo)过(guo)(guo)程中，料(liao)(liao)(liao)(liao)(liao)(liao)斗(dou)、物(wu)料(liao)(liao)(liao)(liao)(liao)(liao)和喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)器(qi)(qi)(qi)(qi)(qi)(qi)共同连续地(di)进(jin)(jin)行(xing)称重(zhong)(zhong)。跟(gen)着物(wu)料(liao)(liao)(liao)(liao)(liao)(liao)送(song)(song)出(chu)后，丈量(liang)(liang)实在的(de)(de)(de)(de)(de)(de)失(shi)(shi)重(zhong)(zhong)速(su)率(lv)(lv)，并将(jiang)它(ta)与所需(xu)求的(de)(de)(de)(de)(de)(de)失(shi)(shi)重(zhong)(zhong)速(su)率(lv)(lv)（设(she)定(ding)值(zhi)(zhi)）加以比(bi)较。失(shi)(shi)重(zhong)(zhong)式(shi)喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)经过(guo)(guo)调停喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)器(qi)(qi)(qi)(qi)(qi)(qi)速(su)率(lv)(lv)来(lai)自动(dong)(dong)(dong)修正违背设(she)定(ding)点的(de)(de)(de)(de)(de)(de)偏值(zhi)(zhi)，然后完(wan)(wan)成均匀准确地(di)连续喂(wei)(wei)(wei)(wei)(wei)送(song)(song)物(wu)料(liao)(liao)(liao)(liao)(liao)(liao)。失(shi)(shi)重(zhong)(zhong)式(shi)喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)控(kong)制(zhi)(zhi)要求及处(chu)(chu)理才能(neng)：失(shi)(shi)重(zhong)(zhong)式(shi)喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)所有(you)的(de)(de)(de)(de)(de)(de)控(kong)制(zhi)(zhi)和处(chu)(chu)理功用都是(shi)由它(ta)来(lai)完(wan)(wan)成的(de)(de)(de)(de)(de)(de)，其(qi)(qi)设(she)备的(de)(de)(de)(de)(de)(de)控(kong)制(zhi)(zhi)表面会(hui)有(you)用的(de)(de)(de)(de)(de)(de)依据其(qi)(qi)信号(hao)(hao)计(ji)算出(chu)单位时(shi)间(jian)内(nei)(nei)(nei)秤体的(de)(de)(de)(de)(de)(de)重(zhong)(zhong)量(liang)(liang)改(gai)动(dong)(dong)(dong)率(lv)(lv)作(zuo)为(wei)实践瞬(shun)时(shi)流量(liang)(liang)，然后与设(she)定(ding)的(de)(de)(de)(de)(de)(de)政(zheng)策流量(liang)(liang)进(jin)(jin)行(xing)比(bi)较，进(jin)(jin)行(xing)PID运(yun)(yun)算后输出(chu)4-20mA的(de)(de)(de)(de)(de)(de)电流信号(hao)(hao)去改(gai)动(dong)(dong)(dong)喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)电机(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)变(bian)频(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)输出(chu)频(pin)(pin)率(lv)(lv)。这(zhei)样能(neng)够改(gai)动(dong)(dong)(dong)电机(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)转(zhuan)速(su)使实践喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)量(liang)(liang)尽(jin)可能(neng)的(de)(de)(de)(de)(de)(de)挨近设(she)定(ding)的(de)(de)(de)(de)(de)(de)政(zheng)策流量(liang)(liang)，以到(dao)达(da)精(jing)准喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de)(de)。假如失(shi)(shi)重(zhong)(zhong)式(shi)喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)依据传(chuan)感器(qi)(qi)(qi)(qi)(qi)(qi)传(chuan)送(song)(song)的(de)(de)(de)(de)(de)(de)信号(hao)(hao)进(jin)(jin)行(xing)PID控(kong)制(zhi)(zhi)的(de)(de)(de)(de)(de)(de)话(hua)，因为(wei)在这(zhei)个时(shi)间(jian)段传(chuan)感器(qi)(qi)(qi)(qi)(qi)(qi)感受到(dao)的(de)(de)(de)(de)(de)(de)重(zhong)(zhong)量(liang)(liang)改(gai)动(dong)(dong)(dong)会(hui)变(bian)小，然后导致信号(hao)(hao)失(shi)(shi)真控(kong)制(zhi)(zhi)禁(jin)绝，为(wei)此在控(kong)制(zhi)(zhi)表面内(nei)(nei)(nei)还(hai)设(she)有(you)补料(liao)(liao)(liao)(liao)(liao)(liao)延时(shi)时(shi)间(jian)，该时(shi)间(jian)是(shi)从封闭阀门开(kai)端计(ji)时(shi)的(de)(de)(de)(de)(de)(de)。失(shi)(shi)重(zhong)(zhong)式(shi)喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)在开(kai)端补料(liao)(liao)(liao)(liao)(liao)(liao)到(dao)补料(liao)(liao)(liao)(liao)(liao)(liao)延时(shi)时(shi)间(jian)完(wan)(wan)毕这(zhei)段时(shi)间(jian)内(nei)(nei)(nei)喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)电机(ji)(ji)(ji)将(jiang)维持补料(liao)(liao)(liao)(liao)(liao)(liao)前的(de)(de)(de)(de)(de)(de)频(pin)(pin)率(lv)(lv)不(bu)变(bian)，换言之是(shi)在此过(guo)(guo)程中设(she)备一直处(chu)(chu)于固定(ding)频(pin)(pin)率(lv)(lv)运(yun)(yun)行(xing)状况—静态控(kong)制(zhi)(zhi)。失(shi)(shi)重(zhong)(zhong)式(shi)喂(wei)(wei)(wei)(wei)(wei)料(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)在运(yun)(yun)行(xing)时(shi)影响其(qi)(qi)工(gong)作(zuo)精(jing)度的(de)(de)(de)(de)(de)(de)因素有(you)许多，比(bi)如空气(qi)活动(dong)(dong)(dong)，还(hai)有(you)车(che)间(jian)的(de)(de)(de)(de)(de)(de)风扇(shan)、空调、风吹(chui)等都会(hui)对其(qi)(qi)的(de)(de)(de)(de)(de)(de)精(jing)度有(you)影响，地(di)上颤动(dong)(dong)(dong)，因为(wei)车(che)间(jian)噪音大(da)，机(ji)(ji)(ji)器(qi)(qi)(qi)(qi)(qi)(qi)频(pin)(pin)繁运(yun)(yun)作(zuo)导致地(di)上颤动(dong)(dong)(dong)，甚(shen)至有(you)些车(che)间(jian)的(de)(de)(de)(de)(de)(de)地(di)上不(bu)平也(ye)会(hui)影响它(ta)的(de)(de)(de)(de)(de)(de)精(jing)度，