[time-nuts] Standards sought for immunity of shielded cablelinks to power-frequency ground loops

Bruce Griffiths bruce.griffiths at xtra.co.nz
Thu Jan 8 15:58:51 EST 2009


Scott Newell wrote:
> At 01:59 PM 1/8/2009 , Poul-Henning Kamp wrote:
>   
>> In message <49665A6D.2030100 at xtra.co.nz>, Bruce Griffiths writes:
>>
>>     
>>> I have been unable to find a reference to triax consisting of 3
>>> conductors within a shield, however such confusion is understandable
>>> given the confusion over quadrax:-
>>>       
>> I have only ever seen it used for very old 3-electrode condenser
>> microphones.
>>     
>
> Doesn't Keithley use triax connectors on some of their high-impedance
> instrumentation?
>
>   
Scott

They use the concentic conductor definition/interpretation of the term
triax.
I was seeking an example of the 3 conductor within a shield interpretation.

See the links on quadrax posted earlier for an idea of the pervasive
rampant confusion.

Bruce




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