Today's Message Index:
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1. 05:43 AM - Re: Ferrites on the feed line (OOPS) (Robert L. Nuckolls, III)
2. 01:46 PM - Hall effect sensor (Linda Walker)
Message 1
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Subject: | Re: Ferrites on the feed line (OOPS) |
> . . . . This picture shows 7 passes
> of wire through the core for an effective
> inductance 49x that of a single pass.
>
>
>[]
>
>
> Hence, one would need to string 49 single
> cores onto the coax as a string of beads to
> equal the effectiveness of one core wound with
> seven turns . . . but generally useful only
> at 200mHz and below.
My third grade teacher visited me in a dream
last night . . . raised her eybrows and said,
"Are you sure 'bout that?"
Bob . . .
Message 2
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Subject: | Hall effect sensor |
=0ABob et al.=0A=0AI have a VMS 1000 engine instumentation system that pres
ently uses a hall effect sensor on the main alternator "B" lead to measure
current for the display.=0AI'm now installing an auxilliary alternator on t
he vacuum pad which ties into the same starter contactor to battery contact
or lead as the main alternator, a la Figure Z-12.=0A=0AQuestions:=0AIs it f
easible to route the starter contactor to battery contactor lead through t
he VMS hall effect sensor to monitor either alternator's current?=0AWhat is
the possible effect during engine start, (current going in the opposite di
rection ), on the sensor which is marked for a particular wire/current dire
ction?=0A=0AAny advice much appreciated.=0APatrick Elliott, Surrey, England
.=0AG-LGEZ
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