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发表于 2009-12-1 08:52:52
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Current Range - Select High, Medium (< 1A), or Low (< 0.02A) range current measurements. Use the Low range if your current measurements will always be less than 20 mA. Use High range if any current measurements will be greater than 1 ampere.
Current Type - Select Pulse or DC-only current type. Use Pulse when measuring current pulses or other waveforms with a frequency content greater than a few kilohertz. Use DC-only when making dc current measurements and you require a measurement offset better than 2mA on the High current measurement range. Otherwise, the DC-only current type gives inaccurate results on current waveforms with ac content. Note that the current type is fixed at DC-only in the Low current range.
简而言之,range只是测量的范围不同,DC-only测量不含AC分量的电流,对于手机电流测量,测量通话瞬时电流用pluse,其它用DC没有问题,我以为 |
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