Hi Larry- I would be interesrted in any of the geophones that are
available- would be glad to pay the shipping to NV...Jim
Jim O'Donnell
Geological/Geophysical Consultant
GEOTECHNICAL APPLICATIONS
702.293.5664 geophysics@..........
702.281.9081 cell jimo17@........
Jim ODonnell
661 Del Prado Dr.
Boulder City, NV 89005
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>...
On Mon, 21 Mar 2005 14:26:34 -0800 Larry Cochrane
writes:
> Hi Everyone,
>
> I received this email the other day. The geophones are not very
> useful for earthquake
> recording since they are 8 hz units. Since Stanford is near by I
> could pick up and
> ship some units to people who are interested in having one of the
> records and/or
> sensors. I have no idea how big the records are so I have no idea
> what the shipping
> costs would be.
>
> Regards,
> Larry Cochrane
> Redwood City, PSN
>
> Simon Klemperer wrote:
> > Gray Jensen (USGS) suggested that you might have an interest, or
> know
> > of someone who might have an interest, in industry geophones.
> > Simon Klemperer
> >
> >
> > Subject: Seismic recorders and geophones available - free to a
> good home
> >
> > Stanford University is disposing of about 180 Seismic Group
> Recorders
> > (SGR-III) and associated geophone strings.
> >
> > RECORDERS
> > The SGR III is a single-channel, digital seismic recorder with a
> > theoretical dynamic range of 156 dB. Data are sampled at 500
> samples
> > per second (or at 2 ms intervals) by a 12 bit A/D converter with
> gain
> > ranging from 0-90 dB in 6 dB steps, recorded on cartridge tape.
> > Total available recording time is about 30 minutes, with up to
> about
> > 100 programmable windows. The SGR's have been modified by the
> USGS
> > to turn on at preset times instead of using the standard radio
> turn
> > on. Timing is provided by a TXCO with an accuracy of 0.1 ppm (most
>
> > SGR clocks drift less than 20 milliseconds during a 24-hour
> period).
> > The SGR III recorders were designed by Amoco Production Company,
> > built by Globe Universal Sciences, Inc., and modified by the USGS.
>
> > IRIS-PASSCAL helped maintain the SGR system as a recording
> facility
> > available to PASSCAL users through the 1990s, and they were used
> very
> > successfully alongside the Refteks in many major controlled source
>
> > experiments.
> > Not all our recorders work - the facility was last used in 2001,
> and
> > the SGRs have been in storage ever since. We have available a
> > miscellaneous supply of spare boards, manuals, connectors, etc.
> > I estimate the cost to get each unit back in the field for a
> single
> > experiment would be >$50, and in a recent experiment in the
> western
> > USA I found it more cost-effective to pay for air-freight shipping
> of
> > Texan recorders from Europe, than to bring the SGR system out of
> its
> > current retirement.
> >
> > GEOPHONES
> > For each SGR III we also own a single string of 6 modified Mark
> > Products L-10B vertical-component geophones (8 Hz) connected in
> > series, with c. 1 m cable between each phone.
> >
> > We also own a large number of strings of 12 L-10B vertical phones,
>
> > and of 12 horizontal phones, in each case with c. 15 m cable
> between
> > each phone, one string per clip.
> >
> >
> >
> > I would consider offers to take all or any part of our equipment.
>
> > You would need to pay shipping.
> > Even if you are not interested, but know of anyone who would want
>
> > e.g. single geophones for teaching purposes, please forward this
> > message.
> >
> >
> >
> >
> >
> >
>
> __________________________________________________________
>
> Public Seismic Network Mailing List (PSN-L)
>
> To leave this list email PSN-L-REQUEST@.............. with
> the body of the message (first line only): unsubscribe
> See http://www.seismicnet.com/maillist.html for more information.
>
Hi Larry- I would be interesrted in any of the geophones that =
are=20
available- would be glad to pay the shipping to NV...Jim
&=
nbsp; &=
nbsp;=20
Jim O'Donnell =20
=
;=20
Geological/Geophysical Consultant
=
; =20
GEOTECHNICAL APPLICATIONS
702.293.5664 =
=20
geophysics@..........702.281.9081 cell =
;=20
jimo17@........
Jim=20
ODonnell
661=20
Del Prado Dr.
Boulder City, NV 89005
>>>>>>>>>>>>&=
gt;>>>>>>>>>>>>>>>>>>=
>>>>>>>>>>>>>>>>>>>=
;>>>>>>>>>>>>>...
On Mon, 21 Mar 2005 14:26:34 -0800 Larry Cochrane <lcochrane@..............>=20
writes:
> Hi Everyone,
>
> I received this email the =
other=20
day. The geophones are not very
> useful for earthquake
>=20
recording since they are 8 hz units. Since Stanford is near by I
> =
could=20
pick up and
> ship some units to people who are interested in having=
one=20
of the
> records and/or
> sensors. I have no idea how big the=
=20
records are so I have no idea
> what the shipping
> costs =
would=20
be.
>
> Regards,
> Larry Cochrane
> Redwood City,=
=20
PSN
>
> Simon Klemperer wrote:
> > Gray Jensen (USGS)=
=20
suggested that you might have an interest, or
> know
> > =
of=20
someone who might have an interest, in industry geophones.
> &=
gt;=20
Simon Klemperer
> >
> >
> > Subject: Seismic=20
recorders and geophones available - free to a
> good home
> &=
gt;=20
> > Stanford University is disposing of about 180 Seismic Group=20
> Recorders
> > (SGR-III) and associated geophone=20
strings.
> >
> > RECORDERS
> > The SGR III is a=
=20
single-channel, digital seismic recorder with a
> > theoretical=20
dynamic range of 156 dB. Data are sampled at 500
> samples
> =
>=20
per second (or at 2 ms intervals) by a 12 bit A/D converter with
> =
gain=20
> > ranging from 0-90 dB in 6 dB steps, recorded on cartridge =
tape.=20
> > Total available recording time is about 30 minutes, with up =
to=20
> about
> > 100 programmable windows. The SGR's have=
been=20
modified by the
> USGS
> > to turn on at preset times =
instead=20
of using the standard radio
> turn
> > on. Timing is=
=20
provided by a TXCO with an accuracy of 0.1 ppm (most
>
> >=
SGR=20
clocks drift less than 20 milliseconds during a 24-hour
> period).=20
> > The SGR III recorders were designed by Amoco Production =
Company,=20
> > built by Globe Universal Sciences, Inc., and modified by the =
USGS.=20
>
> > IRIS-PASSCAL helped maintain the SGR system as a=20
recording
> facility
> > available to PASSCAL users =
through the=20
1990s, and they were used
> very
> > successfully =
alongside the=20
Refteks in many major controlled source
>
> >=20
experiments.
> > Not all our recorders work - the facility was =
last=20
used in 2001,
> and
> > the SGRs have been in storage ever=
=20
since. We have available a
> > miscellaneous supply of spare =
boards,=20
manuals, connectors, etc.
> > I estimate the cost to get each unit=
back=20
in the field for a
> single
> > experiment would be >$=
50,=20
and in a recent experiment in the
> western
> > USA I =
found it=20
more cost-effective to pay for air-freight shipping
> of
> &=
gt;=20
Texan recorders from Europe, than to bring the SGR system out of
> =
its=20
> > current retirement.
> >
> > GEOPHONES
=
>=20
> For each SGR III we also own a single string of 6 modified Mark
&=
gt;=20
> Products L-10B vertical-component geophones (8 Hz) connected in
&=
gt;=20
> series, with c. 1 m cable between each phone.
> >
> &=
gt; We=20
also own a large number of strings of 12 L-10B vertical phones,
>=20
> > and of 12 horizontal phones, in each case with c. 15 m cable=
=20
> between
> > each phone, one string per clip.
> >=
;=20
> >
> >
> > I would consider offers to take =
all or=20
any part of our equipment.
>
> > You would need to pay=20
shipping.
> > Even if you are not interested, but know of anyone =
who=20
would want
>
> > e.g. single geophones for teaching =
purposes,=20
please forward this
> > message.
> >
> >
&=
gt;=20
>
> >
> >
> >
>
>=20
__________________________________________________________
>
>=
=20
Public Seismic Network Mailing List (PSN-L)
>
> To leave this =
list=20
email PSN-L-REQUEST@.............. with=20
> the body of the message (first line only): unsubscribe
> See=
http://www.seismicnet.com/=
maillist.html=20
for more information.
>
>