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50 低阻抗,又有1M 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zui理想選擇,是同類產(chǎn)品中性價(jià)比zui高的時(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 s longest delay)
幅值 2.56 VDC
分辨率 10 mV
斜率 Trigger on rising or falling edge
阻抗 1 M 40 pF or 50
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 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(guò)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 0.00125000
B = A 0.00000005
C = T0 0.10000000
D = C 0.00100000