1756-RMC1輸入模塊
低壓整流濾波電路的原理是什么?
答:低頻脈沖直流電經(jīng)過二極管整流后,再由電解電容濾波,這樣,輸出的就是不同電壓的穩(wěn)定的電流了。由于這里電壓已經(jīng)很低了,所以盡管電容容量很大,通常有1000uf、2200uf等,但由于不需要很高的耐壓值,所以電容體積很小。
1756-RMC1輸入模塊
系統(tǒng)響應(yīng)時間過長是交互式系統(tǒng)中用戶抱怨多的問題,除了響應(yīng)時間的長短外,用戶對不同命令在響應(yīng)時間上的差別亦很在意,若過于懸殊用戶將難以接受;用戶求助機(jī)制宜采用集成式,避免疊加式系統(tǒng)導(dǎo)致用戶求助某項指南而不得不瀏覽大量無關(guān)信息;錯誤和警告信息選用用戶明了、含義準(zhǔn)確的術(shù)語描述,同時還應(yīng)盡可能提供一些有關(guān)錯誤恢復(fù)的建議。此外,顯示出錯信息時,若再輔以聽覺(鈴聲)、視覺(顏色)刺激,則效果更佳;命令方式好是菜單與鍵盤命令并存,供用戶選用。
1756-RMC1輸入模塊
Matrox Marvel G200 agp 2x, 8mb videocard,Grafikkart
Matrox MGI 100A/4/CPQ 4MB SCHEDA VIDEO AGP 790-01 REV. A
Matrox Millenium P650 Low Profile PCI Dual Head P65-MDDAP64F 2x DVI + 1x VGA G24
Matrox Millenium P650 Low-Profile PCI Doppio Testa P65-MDDAP64F 2x DVI + 1x VGA
Matrox Millenium P650 Low-Profile PCI Double Tête P65-MDDAP64F 2x DVI + 1x VGA
Matrox Millenium P650 Low-Profile PCI Dual Cabeza P65-MDDAP64F 2x DVI + 1x VGA
MATROX MILLENIUM P650 LOW-PROFILE PCI DUAL HEAD P65-MDDAP64F 2x DVI + 1x VGA G24
MIL2P/8N MATROX MGA-2164WP-C PCI VGA
Office Graphic Card Matrox Mga P650 PCI Low Profile Dual Head P65-MDDAP64F SFF
Passiv Ventilateur de Refroidissement Double Tête 3D Bureau Graphique 2 Monitore
Passiv Ventilateur de Refroidissement Mga Double Tête 3D Carte Graphique Pour 2
Passive Coolers Dual Head 3D Office Graphic Card For 2 Displays Matrox G45+32MB
Passive Coolers Mga Dual Head 3D Graphic Card For 2 Displays Matrox G45 +32MB #
Passivgekühlte Doppio Testa 3D Scheda Per 2 Monitor Matrox G45 + 32MB RAM G20
Passivgekühlte Doppio Testa 3D Scheda Per 2 Monitor Matrox G45+32MB Mga G20
Passivgekühlte Doppio Testa 3D Scheda Per 2 Monitor Matrox Mga G45 32MB RAM G20
Passivgekühlte Double Tête 3D Graphique Pour 2 Monitore Matrox G45+32MB Mga G20
Passivgekühlte Double Tête 3D Graphique Pour 2 Monitore Matrox G45+32MB RAM G20
Passivgekühlte Double Tête 3D Graphique Pour 2 Monitore Matrox Mga G45 32MB RAM
Passivgekühlte Dual Cabeza 3D Gráfica Para 2 Monitor Matrox G45+32MB Mga G20
Passivgekühlte Dual Cabeza 3D Gráfica Para 2 Monitor Matrox G45+32MB RAM G20
Passivgekühlte Dual Cabeza 3D Gráfica Para 2 Monitor Matrox Mga G45 32MB RAM G20
PASSIVGEKüHLTE DUAL HEAD 3D GRAFIKKARTE F.2 MONITORE MATROX MGA G45 32MB RAM G20
PASSIVGEKüHLTE DUAL HEAD 3D GRAFIKKARTE FüR 2 MONITORE MATROX G45+ 32MB MGA G20
Passivgekühlte Dual Head 3D Graphic Card For 2 Displays Matrox G45 +32MB Mga G20
Passivgekühlte Dual Head 3D Graphic Card For 2 Displays Matrox Mga G45 32MB RAM
所屬分類:工控電器/DCS/PLC系統(tǒng)
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