失(shi)(shi)(shi)重(zhong)(zhong)(zhong)(zhong)(zhong)式喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)由料(liao)(liao)(liao)(liao)(liao)(liao)(liao)斗、喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)器(qi)(qi)（单、双(shuang)轴螺旋喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)器(qi)(qi)）、称重(zhong)(zhong)(zhong)(zhong)(zhong)体系和(he)调(diao)节器(qi)(qi)组成(cheng)，在(zai)(zai)操作(zuo)过程中，料(liao)(liao)(liao)(liao)(liao)(liao)(liao)斗、物料(liao)(liao)(liao)(liao)(liao)(liao)(liao)和(he)喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)器(qi)(qi)共同连续地进行(xing)称重(zhong)(zhong)(zhong)(zhong)(zhong)。跟着物料(liao)(liao)(liao)(liao)(liao)(liao)(liao)送(song)出后，丈量(liang)实在(zai)(zai)的(de)失(shi)(shi)(shi)重(zhong)(zhong)(zhong)(zhong)(zhong)速(su)(su)率(lv)，并将它(ta)(ta)与(yu)所需求(qiu)的(de)失(shi)(shi)(shi)重(zhong)(zhong)(zhong)(zhong)(zhong)速(su)(su)率(lv)（设(she)定(ding)(ding)值）加以比(bi)(bi)较。失(shi)(shi)(shi)重(zhong)(zhong)(zhong)(zhong)(zhong)式喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)经过调(diao)停喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)器(qi)(qi)速(su)(su)率(lv)来自动(dong)(dong)(dong)修正违背设(she)定(ding)(ding)点的(de)偏值，然(ran)后完(wan)(wan)成(cheng)均匀准确地连续喂(wei)送(song)物料(liao)(liao)(liao)(liao)(liao)(liao)(liao)。失(shi)(shi)(shi)重(zhong)(zhong)(zhong)(zhong)(zhong)式喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)控(kong)制(zhi)要求(qiu)及(ji)处(chu)理(li)才能(neng)：失(shi)(shi)(shi)重(zhong)(zhong)(zhong)(zhong)(zhong)式喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)所有(you)(you)的(de)控(kong)制(zhi)和(he)处(chu)理(li)功用都是由它(ta)(ta)来完(wan)(wan)成(cheng)的(de)，其(qi)(qi)设(she)备(bei)的(de)控(kong)制(zhi)表面会(hui)有(you)(you)用的(de)依(yi)据其(qi)(qi)信号(hao)计算出单位(wei)时(shi)(shi)间(jian)(jian)内(nei)秤体的(de)重(zhong)(zhong)(zhong)(zhong)(zhong)量(liang)改动(dong)(dong)(dong)率(lv)作(zuo)为(wei)实践瞬时(shi)(shi)流(liu)量(liang)，然(ran)后与(yu)设(she)定(ding)(ding)的(de)政策(ce)流(liu)量(liang)进行(xing)比(bi)(bi)较，进行(xing)PID运(yun)(yun)(yun)算后输出4-20mA的(de)电(dian)流(liu)信号(hao)去改动(dong)(dong)(dong)喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)电(dian)机(ji)(ji)(ji)的(de)变(bian)频(pin)(pin)器(qi)(qi)的(de)输出频(pin)(pin)率(lv)。这样能(neng)够改动(dong)(dong)(dong)电(dian)机(ji)(ji)(ji)的(de)转速(su)(su)使实践喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)量(liang)尽(jin)可(ke)能(neng)的(de)挨近设(she)定(ding)(ding)的(de)政策(ce)流(liu)量(liang)，以到达精准喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)的(de)目的(de)。假(jia)如(ru)失(shi)(shi)(shi)重(zhong)(zhong)(zhong)(zhong)(zhong)式喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)依(yi)据传感(gan)器(qi)(qi)传送(song)的(de)信号(hao)进行(xing)PID控(kong)制(zhi)的(de)话，因为(wei)在(zai)(zai)这个时(shi)(shi)间(jian)(jian)段(duan)传感(gan)器(qi)(qi)感(gan)受到的(de)重(zhong)(zhong)(zhong)(zhong)(zhong)量(liang)改动(dong)(dong)(dong)会(hui)变(bian)小(xiao)，然(ran)后导致信号(hao)失(shi)(shi)(shi)真控(kong)制(zhi)禁绝，为(wei)此在(zai)(zai)控(kong)制(zhi)表面内(nei)还设(she)有(you)(you)补(bu)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)延(yan)时(shi)(shi)时(shi)(shi)间(jian)(jian)，该时(shi)(shi)间(jian)(jian)是从封闭阀(fa)门开端(duan)计时(shi)(shi)的(de)。失(shi)(shi)(shi)重(zhong)(zhong)(zhong)(zhong)(zhong)式喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)在(zai)(zai)开端(duan)补(bu)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)到补(bu)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)延(yan)时(shi)(shi)时(shi)(shi)间(jian)(jian)完(wan)(wan)毕这段(duan)时(shi)(shi)间(jian)(jian)内(nei)喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)电(dian)机(ji)(ji)(ji)将维持补(bu)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)前的(de)频(pin)(pin)率(lv)不变(bian)，换言之是在(zai)(zai)此过程中设(she)备(bei)一直处(chu)于固定(ding)(ding)频(pin)(pin)率(lv)运(yun)(yun)(yun)行(xing)状况—静态控(kong)制(zhi)。失(shi)(shi)(shi)重(zhong)(zhong)(zhong)(zhong)(zhong)式喂(wei)料(liao)(liao)(liao)(liao)(liao)(liao)(liao)机(ji)(ji)(ji)在(zai)(zai)运(yun)(yun)(yun)行(xing)时(shi)(shi)影(ying)响(xiang)其(qi)(qi)工作(zuo)精度(du)(du)的(de)因素有(you)(you)许多，比(bi)(bi)如(ru)空(kong)气活动(dong)(dong)(dong)，还有(you)(you)车间(jian)(jian)的(de)风扇、空(kong)调(diao)、风吹等(deng)都会(hui)对(dui)其(qi)(qi)的(de)精度(du)(du)有(you)(you)影(ying)响(xiang)，地上(shang)颤(zhan)(zhan)动(dong)(dong)(dong)，因为(wei)车间(jian)(jian)噪音大，机(ji)(ji)(ji)器(qi)(qi)频(pin)(pin)繁(fan)运(yun)(yun)(yun)作(zuo)导致地上(shang)颤(zhan)(zhan)动(dong)(dong)(dong)，甚至(zhi)有(you)(you)些车间(jian)(jian)的(de)地上(shang)不平也会(hui)影(ying)响(xiang)它(ta)(ta)的(de)精度(du)(du)，