的确,我的3458开始也不太稳,现在很稳了,已经很长时间没有Calibrate了。
我曾经就这问题与个国外某专业人士交流过,他说非高稳的3458A经过4年后,都成为高稳的了:
All HP3458A's will meet Option 002 Specifications after only 4 years of use! Their references improve vastly with age!! Also, Option 002 means HP already aged the reference with a heating chamber for a proprietary length of time before installing it.