## PSN-L Email List Message

Subject: RE: force gauge/transducer
From: "Jack Ivey" ivey@..........
Date: Mon, 30 Jan 2006 17:37:28 -0500

```Thanks for clarifying my post, I was even more cryptic than usual.

=20

Jack

=20

________________________________

From: psn-l-request@.............. [mailto:psn-l-request@...............
On Behalf Of Jan Froom
Sent: Monday, January 30, 2006 4:20 PM
To: psn-l@..............
Subject: Re: force gauge/transducer

=20

Thanks Jack...=20
I assume you're suggesting that you then put a sheet of paper behind the
strip, and then using a beam balance scale, calibrate the amount of bend
and mark that on the paper.  Simple and neat.

Jan

Jack Ivey wrote:=20

How about a piece of "feeler gauge" material (10 mm X 50-150 mm strip of
thin springy steel), clamped at one end and hanging vertically.  You may
=20
be able to get some from an auto or machine shop supply place or
mcmastercarr.com.  You can get a nice little tool that comprises a bunch
=20
of these strips of different thicknesses, arranged to open up like a
fan.  That way you could just pick the thickness that works best and
take it
out of the set.
=20
Jack =20
=20
-----Original Message-----
From: psn-l-request@.............. [mailto:psn-l-request@...............
On Behalf Of Jan Froom
Sent: Monday, January 30, 2006 3:12 PM
To: psn-l@..............
Subject: force gauge/transducer
=20
Anyone know of a simple... quick... force gauge or force transducer...
20 - 30 grams max with a resolution of .1 gram.   that I could make or
=20
I'm working on a wind tunnel for my grandson's science fair project and=20
we need a way to measure the lift and drag.
I  can measure lift with a beam balance scale... but the drag is in a=20
horizontal direction and because the force is so low, I hate using a=20
pulley arrangement to change the direction from horizontal to vertical.
=20
Oh... and did I say cheap?
=20
I'd settle for a spring gauge if I could find a source... that's=20
accurate at this low a force.
=20
Thanks.... Jan in Gilroy
=20
__________________________________________________________
=20
Public Seismic Network Mailing List (PSN-L)
=20
__________________________________________________________
=20
Public Seismic Network Mailing List (PSN-L)
=20
=20
=20
=20
=20

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Thanks for clarifying my post, I =
was even
more cryptic than usual.

Jack

From: psn-l-request@..............
[mailto:psn-l-request@............... On
Behalf Of Jan Froom
Sent: Monday, January 30, =
2006
4:20 PM
To: psn-l@..............
Subject: Re: force
gauge/transducer

Thanks Jack...
I assume you're suggesting that you then put a sheet of paper behind the =
strip,
and then using a beam balance scale, calibrate the amount of bend and =
mark that
on the paper.  Simple and neat.

Jan

Jack Ivey wrote:

How about a piece of "feeler gauge" =
material (10 mm X 50-150 mm strip =
ofthin springy steel), clamped at one end and =
hanging vertically.  You =
may be able to get some from an auto or machine =
shop supply place ormcmastercarr.com.  You can get a nice =
little tool that comprises a =
bunch of these strips of different thicknesses, =
arranged to open up like afan.  That way you could just pick the =
thickness that works best andtake =
itout of the =
set. Jack  =
-----Original =
Message-----From: psn-l-request@...............
[mailto:psn-l-request@webtron=
ics.com]On Behalf Of Jan =
FroomSent: Monday, January 30, 2006 3:12 =
PMTo: psn-l@..............<=
/span>Subject: force =
gauge/transducer Anyone know of a simple... quick... force =
gauge or force transducer...20 - 30 grams max with a resolution of .1 =
gram.   that I could make =
orbuy? I'm working on a wind tunnel for my =
grandson's science fair project and =
we need a way to measure the lift and =
drag.I  can measure lift with a beam balance =
scale... but the drag is in a horizontal direction and because the force is =
so low, I hate using a pulley arrangement to change the direction =
from horizontal to vertical. Oh... and did I say =
cheap? I'd settle for a spring gauge if I could find =
a source... that's accurate at this low a =
force. Thanks.... Jan in Gilroy<=
pre> ```
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____________```
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```Public Seismic Network Mailing List =
(PSN-L)```
` `
```To leave this list email PSN-L-REQUEST@...............
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```the body of the message (first line only): =
unsubscribe```
```See http://www.seismicnet.co=
m/maillist.html for more =
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