Between two/multiple nodes across connectors. The manual test spec says less than 1 Ohm. Easy, just use a milliOhm meter. The automatic test spec uses a fancy test box that costs mega bucks.(PC + endless cards +30 odd 25 way D sockets/plugs) From the test print out, it seems the test gear is measuring millivolts. This leads me to believe that they are injecting a constant current into one node, grounding another node and measuring the small voltage at the first node using an ADC(if that makes sense). I think the test gear uses generic Nat semi industrial measurement cards. Is this how any of you would expect a continuity test to be accomplised using ATE ? If not, anyone got any experience of doing this ? Typical values are in the low tens of milliohms. TIA
- posted
12 years ago