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6SL3352-6TH35-8AA1
6SL3352-6TH35-8AA1
光的一个突出特点是老化问题。LED的量子效率,定义为输入电流的每个电子的总光子,在恒定电流下随时间而降低。这主要是由于PN结的电应力和热应力。这对光耦合器的长期稳定性和工作性有影响,特别是在高温工作时。设计师可以通过做几件事来补偿老化:
1.缩短实际使用寿命
2.降低工作二极管电流和环境温度
3.避免峰值瞬态电流
当然,这些操作对用例施加了限制,因为隔离器在本质上存在此类条件的系统中有用。数字隔离器没有这样的物理限制。由于光电器件基本上通过切换PN结二极管来工作,因此它们的开关速率相对较慢。因此,optos只能实现具有较大传播延迟和偏斜的较低数据速率。
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COGNEX 8110-CVM6-32 VM22A 203-0079-RA FRAME GRABBER
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Allied Motion QB02302-B05-HE Brushless DC Motor
ICOS IVC-1000 IVC 1000 OP771 Camera
YASKAWA A1A2CN2-FK JUSP-A1A2CN2-FK SERVO DRIVE
RVSI Acuity Imaging 070-200200 045-200400 Frame Grabber
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Allen Bradley SLC 500 1747-L532 5/03 CPU 13 Slot Rack
Agilent 54855A 6GHz 4CH 20GSa/s Infiniium Oscilloscope
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Intel Core 2 Duo Mobile T9400 2.53Ghz/6MB/1066
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Panasonic NAIS FPO-C14 FP0-C14RS-A AFP02223-A
Intel Core 2 Duo Mobile T9400 2.53Ghz/6MB/1066
TEKTRONIX TDS 784A 4 CH COLOR DIGITIZING OSCILLOSCOPE
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