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    物料流量計(ji)數(shu)器組主要由(you)紅(hong)外線對射、放大(da)整(zheng)形、計(ji)數(shu)顯示和穩(wen)壓(ya)(ya)(ya)等電(dian)(dian)路(lu)組成(cheng)(cheng)。電(dian)(dian)路(lu)通(tong)(tong)電(dian)(dian)后(hou)紅(hong)外發(fa)射二(er)極(ji)管(guan)發(fa)射的紅(hong)外線直接(jie)射入紅(hong)外接(jie)收(shou)二(er)極(ji)管(guan)中(zhong)，此時紅(hong)外接(jie)收(shou)二(er)極(ji)管(guan)導通(tong)(tong)，當物件(jian)經過(guo)時光線被(bei)遮擋，紅(hong)外接(jie)收(shou)二(er)極(ji)管(guan)截止(zhi)，此信號(hao)(hao)通(tong)(tong)過(guo)由(you)Q1組成(cheng)(cheng)的放大(da)電(dian)(dian)路(lu)，對信號(hao)(hao)進(jin)行放大(da)處理(li)，經過(guo)處理(li)后(hou)的信號(hao)(hao)送入由(you)U1組成(cheng)(cheng)的施(shi)密特觸發(fa)電(dian)(dian)路(lu)，將模擬的信號(hao)(hao)裝換為脈沖信號(hao)(hao)，信號(hao)(hao)送入計(ji)數(shu)器芯片U4進(jin)行計(ji)數(shu)，計(ji)數(shu)值(zhi)通(tong)(tong)過(guo)U2和數(shu)碼管(guan)進(jin)行顯示。穩(wen)壓(ya)(ya)(ya)電(dian)(dian)路(lu)主要由(you)整(zheng)流濾波電(dian)(dian)路(lu)和串聯(lian)式穩(wen)壓(ya)(ya)(ya)電(dian)(dian)源組成(cheng)(cheng)。輸入9V-12V的交流或(huo)直流電(dian)(dian)源經過(guo)穩(wen)壓(ya)(ya)(ya)電(dian)(dian)路(lu)，轉換為5V輸出。