ATOS放(fang)(fang)大(da)(da)器(qi)(qi)為合式放(fang)(fang)大(da)(da)器(qi)(qi)，用(yong)(yong)于(yu)(yu)驅動(dong)兩(liang)個電(dian)(dian)磁鐵(tie)比(bi)(bi)例(li)閥(fa)。放(fang)(fang)大(da)(da)器(qi)(qi)對(dui)電(dian)(dian)磁比(bi)(bi)例(li)閥(fa)提(ti)(ti)供(gong)(gong)所需電(dian)(dian)流以校(xiao)準閥(fa)的調(diao)(diao)整(zheng)量，使(shi)之與輸入信(xin)號相對(dui)應。該(gai)放(fang)(fang)大(da)(da)器(qi)(qi)用(yong)(yong)于(yu)(yu)開環控制系統。放(fang)(fang)大(da)(da)器(qi)(qi)通(tong)過(guo)對(dui)電(dian)(dian)磁鐵(tie)提(ti)(ti)供(gong)(gong)一切(qie)換電(dian)(dian)流，使(shi)閥(fa)的調(diao)(diao)整(zheng)與輸入信(xin)號(電(dian)(dian)壓或電(dian)(dian)流)成比(bi)(bi)例(li)。為保證閥(fa)的調(diao)(diao)整(zheng)精度，可用(yong)(yong)放(fang)(fang)大(da)(da)器(qi)(qi)上(shang)的電(dian)(dian)位(wei)器(qi)(qi)調(diao)(diao)整(zheng)增益和偏(pian)流。供(gong)(gong)給(gei)放(fang)(fang)大(da)(da)器(qi)(qi)的輸入信(xin)號通(tong)常是由外界電(dian)(dian)位(wei)器(qi)(qi)或PLC控制單(dan)元提(ti)(ti)供(gong)(gong)。放(fang)(fang)大(da)(da)器(qi)(qi)由偏(pian)流調(diao)(diao)整(zheng)、增益調(diao)(diao)整(zheng)、PWM調(diao)(diao)制組成，電(dian)(dian)流調(diao)(diao)節范圍0-1安，負(fu)載(zai)阻抗10-45Ω，兩(liang)通(tong)道獨立，可以與YUKEN油研比(bi)(bi)例(li)閥(fa)(泵)優(you)秀匹配使(shi)用(yong)(yong)。  

控制(zhi)能源(yuan)來實現的(de)(de)，放(fang)(fang)(fang)(fang)大(da)(da)(da)所需(xu)功耗由(you)能源(yuan)提供。對于(yu)線性放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)，輸出就是輸入(ru)信(xin)(xin)號(hao)的(de)(de)復現和增強。對于(yu)非線性放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)，輸出則與輸入(ru)信(xin)(xin)號(hao)成一定(ding)函數關系。放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)按所處理信(xin)(xin)號(hao)物理量分為(wei)(wei)機(ji)械放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)、機(ji)電(dian)(dian)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)、電(dian)(dian)子(zi)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)、液動(dong)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)和氣動(dong)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)等，其(qi)中(zhong)(zhong)用(yong)得zui廣(guang)泛的(de)(de)是電(dian)(dian)子(zi)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)。隨著射(she)(she)流技術(shu)（見射(she)(she)流元件(jian)(jian)）的(de)(de)推(tui)廣(guang)，液動(dong)或氣動(dong)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)的(de)(de)應用(yong)也逐漸增多。ATOS電(dian)(dian)子(zi)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)又按所用(yong)有(you)源(yuan)器(qi)(qi)件(jian)(jian)分為(wei)(wei)真空管(guan)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)、晶體(ti)(ti)(ti)管(guan)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)、固體(ti)(ti)(ti)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)和磁放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)，其(qi)中(zhong)(zhong)又以(yi)晶體(ti)(ti)(ti)管(guan)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)應用(yong)zui廣(guang)。在(zai)自動(dong)化儀表中(zhong)(zhong)晶體(ti)(ti)(ti)管(guan)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)常(chang)用(yong)于(yu)信(xin)(xin)號(hao)的(de)(de)電(dian)(dian)壓(ya)放(fang)(fang)(fang)(fang)大(da)(da)(da)和電(dian)(dian)流放(fang)(fang)(fang)(fang)大(da)(da)(da)，主要形式(shi)有(you)單端放(fang)(fang)(fang)(fang)大(da)(da)(da)和推(tui)挽放(fang)(fang)(fang)(fang)大(da)(da)(da)。此外，還常(chang)用(yong)于(yu)阻抗(kang)匹配、隔離、電(dian)(dian)流-電(dian)(dian)壓(ya)轉(zhuan)換、電(dian)(dian)荷-電(dian)(dian)壓(ya)轉(zhuan)換（如(ru)電(dian)(dian)荷放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)）以(yi)及利(li)用(yong)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)實現輸出與輸入(ru)之間(jian)的(de)(de)一定(ding)函數關系（如(ru)運算放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)）。

E-ME-K-PID

E-MI-AS-IR-01H/I

E-ME-T-01H/I 40/TQ32S A 

E-ME-AC-01F/I 

E-BM-AS-PS-05H 

DHZE-A-073-S5

DKZE-A-173-S5

E-ME-L-01H 40 /LQ22SA

E-ME-L-01H 40 /LQ32SA

E-ME-L-01H 40/DL27SB

E-ME-L-01H 40/PCNNSA

E-ME-L-01H/DL27SB

E-ME-L-01H/I 40 /LQ32SA

E-ME-T-01H 40 /DH04SA

E-ME-T-01H 40 /DH05SA

E-ME-T-01H 40 /DK14SC

E-ME-T-01H 40 /DK15SB

E-ME-T-01H 40 /QV0NSA

E-ME-T-01H 40 /TK14AA

E-ME-T-01H 40 /TK14SC

E-ME-T-01H 40 /TQ25SA

E-ME-T-01H 40 /TQ32SA