On 08/03/2018 09:04, Thomas de Groot wrote:
> On 8-3-2018 9:25, Stephen wrote:
>> On 08/03/2018 07:54, Thomas de Groot wrote:
>>> On 7-3-2018 22:44, Stephen wrote:
>>
>>>> Drillers use some strange terms. The anchor chain tension is 
>>>> measured in Kilo-pound-inches. I had never heard of that measurement 
>>>> before I had to calibrate the load sensors.
>>>>
>>>
>>> Interesting story. "kilo-pound-inches", could that mean 'thousand 
>>> pounds per inch'? the word kilo being used for the thousand's value?
>>>
>>
>> Yes kilo is a multiplier and since it is a unit of work it should have 
>> been KIP, kilo inch pounds which is 112.98 Nm.
>> I got kpi stuck in my head. :-)
>>
>> For something so important the transmitter was a simple op amp. Check 
>> the zero and span against the supplied load cell manufacturers data 
>> sheet. Easy peasy. :-)
>>
> 
> Easy peasy indeed. I imagine the guys calibrating those data sheets: 

> 

More likely Pop. The materials used are designed to take the weight and 
are over rated.


> I am always surprised that we got to the Moon at all, or Mars for that 
> matter, where we were able to crash at least once because of 
> imperial/metrics confusion... ;-)
> 

Big mistake mixing units. I may think in imperial but work in metric 
when I can.

-- 

Regards
     Stephen

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