Subject:
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Re: Magnetic field activated switch
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Newsgroups:
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lugnet.trains
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Date:
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Sun, 1 Apr 2001 19:03:46 GMT
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Viewed:
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458 times
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In lugnet.trains, Manfred Moolhuysen writes:
> In lugnet.trains, Sam Hastings writes:
> > I want to make a magnetic field activated switch for my level crossing, that
> > will activate when some sort of rolling stock comes [snip]
>
> Is it possible that the magnetic field generated from flux in the track
> current caused by the running train might trigger some false detections ?
Exactly what part of a _plastic_ train are we hoping to detect here anyway?
Are these things sensitive enough to detect the wheels and sparse metallic
components of a train motor, encased in ABS, as it goes past?
Jason J Railton
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Message has 1 Reply:
 | | Re: Magnetic field activated switch
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| Jason J. Railton wrote in message ... (...) How about the magnetic coupler on the front of the loco and between the wagons. I have found that the coupler going past has enough strength to attract a magnet under the track. Allan J Smith (24 years ago, 1-Apr-01, to lugnet.trains)
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Message is in Reply To:
| | Re: Magnetic field activated switch
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| (...) Is it possible that the magnetic field generated from flux in the track current caused by the running train might trigger some false detections ? In lugnet.trains, Jason J. Railton writes: (...) I've been thinking of making a pneumatic weight (...) (24 years ago, 31-Mar-01, to lugnet.trains)
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