詳細(xì)介紹
DG535四通道數(shù)字延時(shí)脈沖發(fā)生器
DG535數(shù)字延時(shí)脈沖發(fā)生器提供四路獨(dú)立的延時(shí)通道和2路完整的脈沖輸出。其延時(shí)分辨率高達(dá)5ps,通道之間的抖動(dòng)小于50ps。前面板可以設(shè)置延時(shí)時(shí)間和脈沖寬度,并且以TTL、ECL、NIM或者變量電壓形式BNC輸出。輸出阻抗既有50Ω低阻抗,又有1MΩ的高阻抗。其高精度、低抖動(dòng)、寬的延時(shí)范圍使DG535成為激光時(shí)序控制、自動(dòng)測(cè)試和高精度脈沖應(yīng)用的選擇,是同類產(chǎn)品中的時(shí)序控制器。
四通道數(shù)字延時(shí)脈沖發(fā)生器性能參數(shù):
延時(shí)
通道 Four independent delay outputs
范圍 0 to 999.999,999,999,995 seconds
分辨率 5 ps
精度 1500 ps timebase error × delay
Timebase Standard: 25 ppm crystal oscillator
Optional: 1 ppm TCXO (opt. 03)
External: 10.0 MHz reference input
RMS抖動(dòng) <100 ps (10−8 × delay)
觸發(fā)延時(shí)(typ.) 85 ns (ext. trigger to T0 output)
外部觸發(fā)
比率 DC to 1/(1 μs longest delay)
幅值 ±2.56 VDC
分辨率 10 mV
斜率 Trigger on rising or falling edge
阻抗 1 MΩ 40 pF or 50 Ω
內(nèi)置比率發(fā)生器
比率 Single shot, 0.001 Hz to 1.000 MHz, or line
分辨率 Four digits, 0.001 Hz below 10 Hz
精度 Same as timebase
抖動(dòng) 1:10,000
Settling <2 seconds for any rate change
突發(fā)模式 2 to 32766 pulses per burst at integer multiples (4 to 32767) of the trigger period
輸出
阻抗 50 Ω or high impedance
上升時(shí)間 2 to 3 ns (typ.)
轉(zhuǎn)換速率 1 V/ns
Overshoot <100 mV 10 % of pulse amplitude
電壓幅值 TTL: 0 to 4 VDC (normal or inverted)
ECL: −1.8 to −0.8 VDC (normal or inverted)
NIM: −0.8 to 0.0 VDC (normal or inverted)
VAR: Adjustable offset and amplitude between −3 and 4 VDC with 10 mV
resolution.4 V maximum transition.
精度 ±(50 mV 3 % of pulse amplitude)
規(guī)格
顯示 backlit 20-character LCD
計(jì)算機(jī)接口 GPIB (IEEE-488). All instrument functions and settings may be controlled
over the interface bus. Interface queue can be viewed from the front panel.
尺寸 8.5" × 4.75" × 14" (WHD)
重量 10 lbs.
功率 70 W, 100/120/220/240 VAC,50/60 Hz
保修 One year parts and labor on defects in materials and workmanship
上圖為延時(shí)脈沖時(shí)序示范圖。前面板的輸出都可以通過前面板或者遠(yuǎn)程進(jìn)行設(shè)定,十分方便易行。每一個(gè)延時(shí)輸出都可以以T0時(shí)刻為零時(shí)刻進(jìn)行設(shè)定:(例如)
A = T0 0. B = A 0. C = T0 0. D = C 0. |