[time-nuts] Opera coordinator has resigned
mblazer at satx.rr.com
Sat Mar 31 18:46:44 UTC 2012
I agree that you can't inspect quality into a system, but it is far to
easy to 'not inspect' quality right out of the system. Some of the new
'buzz-word' systems (TQM,6 sigma, etc.) seem to want everyone to be
their own QA inspector to lessen the involvement of independent QA. I
find that no matter how careful I inspect my own work, just knowing
someone else will be looking over it makes me do a better job.
On 3/31/2012 11:23 AM, J. Forster wrote:
> Frankly, I'm a bit surprised at the connector problem. Much of High Energy
> instrumentation uses LEMO connectors, which have a definite "click" when
> mated. They are not like BNCs which can be mated, without locking.
> As to my point about inspecting in quality, look at the (crummy) attached
> The leads to CR5 (a photocell) just to the left of the ceramic IC have
> NEVER been soldered or clipped. Yet, this 5519A Laser Interferometer head
> was built by HP, inspected by HP, tested by HP, and sold to a ciustomer by
> HP as part of a>$60,000 system.
> I rest my case. You simply cannot inspect in quality.
> Jim Lux wrote:
>> And we do things like stake connectors with epoxy, just in case. Serves
>> two purposes:
>> 1) a second independent look at the connector (after the first guy went
>> through and tightened it with the torque wrench with the QA guy watching)
>> 2) if, for some reason, there was a problem with #1 (maybe the torque
>> wrench had an issue, or the QA guy sneezed and looked away, or...), at
>> least the connector won't back off with vibration.
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