I'd forgotten about this, but at work we've got tachometer/hour meter
combination units on our small generators that pick up their
information from a wire wrapped around the plug wire.
Goto www.northertool.com, and search for item number 160590.
Unfortunately they're encapsulated and I don't have a manual any
more, but maybe this'll give you an idea.
Brian
--- In basicstamps@yahoogroups.com, <leroy@f...> wrote:
> Craig,
>
> Seems to me that if you wrap an insulated wire around the plug
wire, & tie
> one end to the motor the other will give you a signal that you can
use, The more turns the more voltage, so you decide if turns or
amplifiation with an op amp would suit your needs,
>
> regards,
>
> Leroy
>
> From: "Craig" <n2oinjection@y...>
> Date: 2003/12/26 Fri PM 06:20:20 EST
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] Re: Reading tachometer signal...
>
> This is great information. I'm attempting a similar thing, but....
>
> I need to be able to jump from test engine to test engine really
> quick. So..
>
> Does anyone know where I could find info for getting the tach
signal
> from an antenna or wire wrapped around the plug wire? I've heard
of
> this before but have never seen an actual unit in operation or had
> one to copy. I figure I'll just count the time between spikes with
> the pulsin command.
>
> Thanks for any help.
> Craig
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the
Subject and Body of the message will be ignored.
>
>
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>
> To visit your group on the web, go to:
> http://groups.yahoo.com/group/basicstamps/
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--- In basicstamps@yahoogroups.com, "Brian" <n7qjb@m...> wrote:
> I'd forgotten about this, but at work we've got tachometer/hour
meter
> combination units on our small generators that pick up their
> information from a wire wrapped around the plug wire.
>
> Goto www.northertool.com, and search for item number 160590.
> Unfortunately they're encapsulated and I don't have a manual any
> more, but maybe this'll give you an idea.
>
> Brian
>
>
> --- In basicstamps@yahoogroups.com, <leroy@f...> wrote:
> > Craig,
> >
> > Seems to me that if you wrap an insulated wire around the plug
> wire, & tie
> > one end to the motor the other will give you a signal that you
can
> use, The more turns the more voltage, so you decide if turns or
> amplifiation with an op amp would suit your needs,
> >
> > regards,
> >
> > Leroy
> >
> > From: "Craig" <n2oinjection@y...>
> > Date: 2003/12/26 Fri PM 06:20:20 EST
> > To: basicstamps@yahoogroups.com
> > Subject: [noparse][[/noparse]basicstamps] Re: Reading tachometer signal...
> >
> > This is great information. I'm attempting a similar thing,
but....
> >
> > I need to be able to jump from test engine to test engine really
> > quick. So..
> >
> > Does anyone know where I could find info for getting the tach
> signal
> > from an antenna or wire wrapped around the plug wire? I've heard
> of
> > this before but have never seen an actual unit in operation or
had
> > one to copy. I figure I'll just count the time between spikes
with
> > the pulsin command.
> >
> > Thanks for any help.
> > Craig
> >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the
> Subject and Body of the message will be ignored.
> >
> >
> > Yahoo! Groups Links
> >
> > To visit your group on the web, go to:
> > http://groups.yahoo.com/group/basicstamps/
> >
> > To unsubscribe from this group, send an email to:
> > basicstamps-unsubscribe@yahoogroups.com
> >
> > Your use of Yahoo! Groups is subject to:
> > http://docs.yahoo.com/info/terms/
Comments
combination units on our small generators that pick up their
information from a wire wrapped around the plug wire.
Goto www.northertool.com, and search for item number 160590.
Unfortunately they're encapsulated and I don't have a manual any
more, but maybe this'll give you an idea.
Brian
--- In basicstamps@yahoogroups.com, <leroy@f...> wrote:
> Craig,
>
> Seems to me that if you wrap an insulated wire around the plug
wire, & tie
> one end to the motor the other will give you a signal that you can
use, The more turns the more voltage, so you decide if turns or
amplifiation with an op amp would suit your needs,
>
> regards,
>
> Leroy
>
> From: "Craig" <n2oinjection@y...>
> Date: 2003/12/26 Fri PM 06:20:20 EST
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] Re: Reading tachometer signal...
>
> This is great information. I'm attempting a similar thing, but....
>
> I need to be able to jump from test engine to test engine really
> quick. So..
>
> Does anyone know where I could find info for getting the tach
signal
> from an antenna or wire wrapped around the plug wire? I've heard
of
> this before but have never seen an actual unit in operation or had
> one to copy. I figure I'll just count the time between spikes with
> the pulsin command.
>
> Thanks for any help.
> Craig
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the
Subject and Body of the message will be ignored.
>
>
> Yahoo! Groups Links
>
> To visit your group on the web, go to:
> http://groups.yahoo.com/group/basicstamps/
>
> To unsubscribe from this group, send an email to:
> basicstamps-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to:
> http://docs.yahoo.com/info/terms/
document, check out page 10.
http://cache.national.com/ds/LM/LM2907.pdf
Mike
--- In basicstamps@yahoogroups.com, "Brian" <n7qjb@m...> wrote:
> I'd forgotten about this, but at work we've got tachometer/hour
meter
> combination units on our small generators that pick up their
> information from a wire wrapped around the plug wire.
>
> Goto www.northertool.com, and search for item number 160590.
> Unfortunately they're encapsulated and I don't have a manual any
> more, but maybe this'll give you an idea.
>
> Brian
>
>
> --- In basicstamps@yahoogroups.com, <leroy@f...> wrote:
> > Craig,
> >
> > Seems to me that if you wrap an insulated wire around the plug
> wire, & tie
> > one end to the motor the other will give you a signal that you
can
> use, The more turns the more voltage, so you decide if turns or
> amplifiation with an op amp would suit your needs,
> >
> > regards,
> >
> > Leroy
> >
> > From: "Craig" <n2oinjection@y...>
> > Date: 2003/12/26 Fri PM 06:20:20 EST
> > To: basicstamps@yahoogroups.com
> > Subject: [noparse][[/noparse]basicstamps] Re: Reading tachometer signal...
> >
> > This is great information. I'm attempting a similar thing,
but....
> >
> > I need to be able to jump from test engine to test engine really
> > quick. So..
> >
> > Does anyone know where I could find info for getting the tach
> signal
> > from an antenna or wire wrapped around the plug wire? I've heard
> of
> > this before but have never seen an actual unit in operation or
had
> > one to copy. I figure I'll just count the time between spikes
with
> > the pulsin command.
> >
> > Thanks for any help.
> > Craig
> >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the
> Subject and Body of the message will be ignored.
> >
> >
> > Yahoo! Groups Links
> >
> > To visit your group on the web, go to:
> > http://groups.yahoo.com/group/basicstamps/
> >
> > To unsubscribe from this group, send an email to:
> > basicstamps-unsubscribe@yahoogroups.com
> >
> > Your use of Yahoo! Groups is subject to:
> > http://docs.yahoo.com/info/terms/