Forum Discussion
MEXICOWANDERER
Oct 09, 2013Explorer
ktmrfs wrote:MEXICOWANDERER wrote:
The only inductive voltage "measurement" devices I have ever seen were detectors warning of the presence of an electromagnetic field. Either the field met pre-set threshold value or it didn't. High Voltage to me means the magic 14 foot corona limit on standard networks. Hotstick and "High-Voltage" is an oxymoron. Especially for the guy on the end of the stick ;)
there are a few around, mostly using optical sensing devices that just happen to be sensitive to an electric field. However they were designed specifcally for measuring high voltage transmission lines with lots of constraints on how they could be used. But again extremely specialized and don't think there was any big use of them.
I spent several years off and on working with optical sensing circuits for electric fields seeing if there was a way to use them to get any repeatable quantitative voltage measurements on traces on a circuit board without making electrical contact. to many issues about surrounding fields to ever get anything remotely useable.
All it yielded was a slew of patents for other optical applications that fell out of the work.
Maybe someday in the future a smarter mind and new technology will prevail.
In 1973 I went after a PhD by creating a project LASER HOLOGRAPHIC PROJECTION OF ELECTOMAGNETIC FIELDS. It meant investing a few hundred hours of programming and a Cray 2 computer. I had neither. But I was treated to a very long and detailed "discussion" about the project with Lawrence Livermore Labs. Lots of interest, then all of a sudden the feasibility / financial issue raised its ugly head and things got mired. I threw a fit, left MIT and decided to become a true Frankenstein engineer. At that I succeeded. I do not do well in a corporate environment. When I informed Lockheed their employment bulletin in the L.A. Times, the "desired PhD qualifications" revealed the nature of their research (H and Y Wave Optical Research) as in aeronautical usage of coatings designed to change and make the bottom of the craft mimic the color and texture of the atmosphere above it - I was paid a surprise and quite rude visit by the DIA.
Trying to discern voltage (as against flux density) of an EMF is something that I would love to attempt today if I could convince my body and cardiac system to shed forty years.
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