Hi All,  I am now testing the PMG  Paper mate Lubriglide, SENSOR,   This =
took well over a hour and I did not have to go to the hardware store =
once.

My camera battery is down, but if someone would like some picts just =
email me.  I know a pict is worth a thousand words, but I will try to =
describe it.

1.  I use a 1/8" x 36" wood dowel, taped a Paper-Mate pen refill to it, =
ball end up.
2.  I use a camera tripod, and attached a rare earth magnet to the =
handle of the tripod, (the tilting handle which is steel). Using the =
crank on the tripod I can raise and lower the dowel.
3.  I found a small steel nut which I could thread onto the dowel, a =
washer on top of the nut, then a larger hex nut, about 1/4" 20 thread. =
on top of the washer.
 This created a base for two bar magnets,(the washer) and a shoulder for =
the ends of the  magnets.(the larger nut)  So left to right=3D =
magnet+nut+magnet   The small nut and washer supports the magnets so =
they don't fall down the dowel.
By threading the small nut and washer up and down the dowel you change =
the magnets height.

 4. I used two small bar magnets, 1/4" x 1/2" x 1"=20

 I turned the crank on the tripod lowering the two magnets to within =
1/16" above the coil. ( Coil laying flat, dowel passing thru center =
hole, of the coil spool, two bar magnets, left and right=3D N and S, =
just above the plastic coil spool.)   This also lowered the end of the =
dowel deeper into the oil.

5.  I laid the  doe nut shaped coil, laying flat, on top of a small =
plastic cup, filled will oil as a damper.

6.  The dowel passes thru the coil spool and extends into the oil.  I =
did not use a paddle on the dowel, it seems to damp well by adding more =
oil.

The coil I got from friend Jerry, which is 6000? turns of 28ga.


Using Larry's board and the DataQ, its producing a very nice signal.   I =
placed the whole thing in a 5 gallon bucket and covered the top of the =
bucket with towels to isolate most of the parts, from air currents.   =
The ball point pen and the top 20" of the dowel are exposed.

The signal looks strong, I turned the gain on AmaSeis down to 2, which =
is about what I use on other sensors.

Not a high tech sensor, but I am going to record some earthquakes and =
see how they look.........if we get some earthquakes.

Thanks everyone.







Hi All,  I am now testing the =
PMG  Paper=20
mate Lubriglide, SENSOR,   This took well over a hour and I =
did not=20
have to go to the hardware store once.
 
My camera battery is down, but if =
someone would=20
like some picts just email me.  I know a pict is worth a thousand =
words,=20
but I will try to describe it.
 
1.  I use a 1/8" x 36" wood dowel, =
taped a=20
Paper-Mate pen refill to it, ball end up.
2.  I use a camera tripod, and =
attached a rare=20
earth magnet to the handle of the tripod, (the tilting handle which =
is=20
steel). Using the crank on the tripod I can raise and lower the=20
dowel.
3.  I found a small steel nut =
which I could=20
thread onto the dowel, a washer on top of the nut, then a larger hex =
nut, about=20
1/4" 20 thread. on top of the washer.
 This created a base for two bar =
magnets,(the=20
washer) and a shoulder for the ends of the  magnets.(the =
larger=20
nut)  So left to right=3D magnet+nut+magnet   The small =
nut and=20
washer supports the magnets so they don't fall down the =
dowel.
By threading the small nut and washer =
up and down=20
the dowel you change the magnets height.
 
 4. I used two small bar magnets, =
1/4" x 1/2"=20
x 1" 
 
 I turned the crank on the tripod =
lowering the=20
two magnets to within 1/16" above the coil. ( Coil laying flat, =
dowel=20
passing thru center hole, of the coil spool, two bar magnets, left =
and=20
right=3D N and S, just above the plastic coil spool.)   This =
also=20
lowered the end of the dowel deeper into the oil.
 
5.  I laid the  doe nut =
shaped coil,=20
laying flat, on top of a small plastic cup, filled will oil as a=20
damper.
 
6.  The dowel passes thru the coil =
spool and=20
extends into the oil.  I did not use a paddle on the dowel, it =
seems to=20
damp well by adding more oil.
 
The coil I got from friend Jerry, which =
is 6000?=20
turns of 28ga.
 
 
Using Larry's board and the DataQ, its =
producing a=20
very nice signal.   I placed the whole thing in a 5 gallon =
bucket and=20
covered the top of the bucket with towels to isolate most of the parts, =
from air=20
currents.   The ball point pen and the top 20" of the dowel =
are=20
exposed.
 
The signal looks strong, I turned the =
gain on=20
AmaSeis down to 2, which is about what I use on other =
sensors.
 
Not a high tech sensor, but I am going =
to record=20
some earthquakes and see how they look.........if we get some=20
earthquakes.
 
Thanks everyone.
Ted