Generally speaking, the 'mean operating time' is the average time for which some device is operated, before being stopped and re-started. It can be measured, rather than tested.
Specific variations from this would be things like the 'mean (operating time) before failure' - usually described as the MTBF.
Please give more information.
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"Love justice, you who rule the world" - Dante Alighieri
I thought i was suffering from deja vu, then i figured out this was multiple posted!
heres my response to your other post:
By "mean" the common understanding/ usage is average.
If a machine is operating 7, 6, 5, 8, and 9 hours during a week of five shifts; the mean operating time would be 7 hours.
If you mean surgeries, it would be the average length of the surgeries in your sample.
documenting up time can be assigned to operataors, or by putting meters on the equipment that document the time it is under power. audits of production records is another way to try to determine that.
In most quality practice, mean operating time is not an issue, mean time between failures, (MTBF) is.
If you are looking for tool monitoring or broken tool detection repost, thats another area and we'd be happy to assist.
milo
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Mean Operating Time
Re: Mean Operating Time
