Actually, it's quite simple to check the strength of a magnet. At Sprain, we use a gauss meter. You can buy one:
http://www.lessemf.com/gauss.html or build one: http://www.coolmagnetman.com/magmeter.htm You can also use a simple weight scale. Place the magnet near a degaussed soft iron mass and measure the pull from the magnet with the scale at a given distance. BTW, when used in the attractive mode, we have actually seen the field strength increase over time. Terry On 7/14/07, Hoyt A. Stearns Jr. <[EMAIL PROTECTED]> wrote:
There are more than two magnets, so I can't really answer that, but I think "repulsive" is what you're getting at. Few of us have instrumentation to check magnet strength accurately, so no information available about that. -----Original Message----- From: OrionWorks [mailto:[EMAIL PROTECTED] Sent: Saturday, July 14, 2007 7:24 AM To: vortex-l@eskimo.com Subject: Re: [Vo]:The Twilight Experience On 7/14/07, Hoyt A. Stearns Jr.wrote: > That's kind of what happened to one of our group (Steorn private developer's > club) -- He had an ORBO running for 8 hours before he went to work. When he > got home from work, it had stopped. He hasn't been able to get it to run > again :-(. It was a rather crude looking affair, so I can imagine the > bearings wore out, but nobody knows. He did tinker with it to make it work > better :-( . Out of curiosity was your team's ORBO running in attractive or repulsive mode? After your ORBO stopped running did anyone check the strength of the PMs? Had they weakened, or not? steve -- Regards Steven Vincent Johnson www.OrionWorks.com
