Re: Here's the new Minelab Equinox January 07, 2018 06:02AM |
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Re: Here's the new Minelab Equinox January 07, 2018 07:38AM |
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GeotechQuote
go-rebels
So why put a preamp circuit in the coil? Either you pick up noise (eddies) in the added circuitry added to the coil or you pick up noise within the low voltage signal going up the coil wire.
Probably in almost all cases the preamp in the coil is a net benefit.
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Geotech
Putting the preamp in the coil helps with noise a little bit, in that the analog signal running up the cable has more amplitude. In general, the more circuitry you put in the coil the more susceptible it is to potential ground noise.
Re: Here's the new Minelab Equinox January 07, 2018 07:52AM |
Registered: 15 years ago Posts: 1,852 |
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GeotechQuote
go-rebels
New detectors are more susceptible to EMI because their power consumption is lower. Older analog units are relatively power hungry and, by definition, less EMI susceptible.
I'd like to know whose definition determined this. It's not even wrong.
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Geotech
I wrote a patent for White's covering the use of acelerometers in metal detectors, US9207315.
Re: Here's the new Minelab Equinox January 07, 2018 10:22AM |
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Re: Here's the new Minelab Equinox January 07, 2018 04:01PM |
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Re: Here's the new Minelab Equinox January 07, 2018 05:09PM |
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Re: Here's the new Minelab Equinox January 07, 2018 11:13PM |
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Geotech
If you have a perception that modern detectors are noisier than older designs, it's more likely because the older designs were just less sensitive.
Re: Here's the new Minelab Equinox January 08, 2018 02:46AM |
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Re: Here's the new Minelab Equinox January 08, 2018 12:20PM |
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Geotech
If I could simply crank up the internal voltages and make noise disappear, I'd do it in a heartbeat.
Re: Here's the new Minelab Equinox January 08, 2018 12:31PM |
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Re: Here's the new Minelab Equinox January 08, 2018 01:05PM |
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Re: Here's the new Minelab Equinox January 08, 2018 01:07PM |
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Re: Here's the new Minelab Equinox January 08, 2018 03:36PM |
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Re: Here's the new Minelab Equinox January 08, 2018 03:50PM |
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Re: Here's the new Minelab Equinox January 09, 2018 11:45AM |
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Re: Here's the new Minelab Equinox January 09, 2018 01:49PM |
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Re: Here's the new Minelab Equinox January 09, 2018 11:13PM |
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Re: Here's the new Minelab Equinox January 15, 2018 02:06AM |
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Re: Here's the new Minelab Equinox January 15, 2018 02:26PM |
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Re: Here's the new Minelab Equinox January 15, 2018 03:28PM |
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Re: Here's the new Minelab Equinox January 15, 2018 06:10PM |
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MichiganRelicHunter
seems to me they changed the time/duration in which the square wave is amplified --- instead of a long amplification and then and bunch of short burst --- they now evened it out to where the wave amplification has been set to an equal amount of time/duration?
Cabela's has them now January 15, 2018 10:26PM |
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Re: Cabela's has them now January 15, 2018 11:15PM |
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Re: Here's the new Minelab Equinox January 16, 2018 10:24AM |
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Re: Here's the new Minelab Equinox January 16, 2018 12:33PM |
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