PSN-L Email List Message
Subject: Re: Damping CDR for HS10-1
From: "Jim ODonnell" geophysics@..........
Date: Sat, 25 Jun 2011 01:15:17 GMT
Geoffery-
I have an old HS10-1 Hz, Z (~400 ohms) and recently compared it with a n=
ew 1 Hz China phone (3.5kohm). At the low end 0.1 to 5 Hz it had a smal=
ler output... =
The China phone is not damped but becomes damped with the seismograph I =
use.
It did lose some gain when used with LC's system.
Geo Space geophones:
http://www.korins.com/m/gs/hs10.htm
The HS-10 is a high-sensitivity, self-generating velocity detec=
tor with extremely low natural frequencies. It has been used for nearly =
three decades to detect seismic activity in applications such as seismol=
ogy, structural analysis, etc.
=
HS-10-1 =
Functional
Sensitivity ( =B1 10%)
2.99 V/ips
4.66 V/ips
9.80 V/ips
29.8 V/ips
62.8 V/ips
Natural Frequency ( =B1 10%)
1 Hz
1 Hz
1 Hz
1 Hz
1 Hz
Coil Resistance ( =B1 10%)
400 ohms
970 ohms
4100 ohms
50,000 ohms
210,000 ohms
Coil Inductance
360 mh
870 mh
3500 mh
35 h
150 h
Damping Factor ( =B1 20%)
=2E031
=2E031
=2E031
=2E035
=2E035
Damping Constant
1178
2862
12656
133255
591794
Displacement Limit
0.5 in
0.5 in
0.5 in
0.5 in
0.5 in
Inertial Mass
33 oz
33 oz
33 oz
29.0 oz
29.0 oz
Orientation Angle
=B1 5=B0
=B1 5=B0
=B1 5=B0
=B1 5=B0
=B1 5=B0
Mechanical
Height
5.40 in
5.40 in
5.40 in
5.40 in
5.40 in
Diameter
4.38 in
4.38 in
4.38 in
4.38 in
4.38 in
Weight
9.75 lbs
9.75 lbs
9.75 lbs
9.50 lbs
9.50 lbs
Jim O'Donnell BC-Geophysics =
Geophysical Consultant/Contractor
Geotechnical/Geothermal/Oil & Gas/Mining Applications
Seismic Surveys- Surface Waves, Refraction, & Reflection
Ground Penetrating Radar, Resistivity, Magnetic, & VLF-EM Surveys
Geophysics@.......... 702.293.5664 702.281.9081 cell =
Boulder City, NV
---------- Original Message ----------
From: Geoffrey
To: "PSN_LIST"
Subject: Damping CDR for HS10-1
Date: Fri, 24 Jun 2011 16:12:12 -0700
Hello PSN,
I have never found the exact specs for the HS10-1
which i now have.
In regards to damping;
Which sounds more realistic,
h(mechanical) =3D 0.35
or
hm =3D 0.035
??
__________________________________________________________
Public Seismic Network Mailing List (PSNLIST)
To leave this list email PSNLIST-REQUEST@.............. with =
the body of the message (first line only): unsubscribe
See http://www.seismicnet.com/maillist.html for more information.
Geoffery-
I have an old HS10-1 Hz, Z (~400 ohms) and recently compared it with =
a new 1 Hz China phone (3.5kohm). At the low end 0.1 to 5 Hz it ha=
d a smaller output...
The China phone is not damped but becomes damp=
ed with the seismograph I use.
It did lose some gain when used with L=
C's system.
Geo Space geo=
phones:
http://www.korins.com/=
m/gs/hs10.htm
The HS-10 is a high-sensitivit=
y, self-generating velocity detector with extremely low natural frequenc=
ies. It has been used for nearly three decades to detect seismic activit=
y in applications such as seismology, structural analysis, etc.
|
HS-10-1 |
|
Functional |
|
Sensitivity ( =B1 10%) |
2.99 V/ips |
4.66 V/ips |
9.80 V/ips |
29.8 V/ips |
62.8 V/ips |
|
Natural Frequency ( =B1 10%)=
<=
/TD>
|
1 Hz |
1 Hz |
1 Hz |
1 Hz |
1 Hz |
|
Coil Resistance ( =B1 10%)
|
400 ohms |
970 ohms |
4100 ohms |
50,000 ohms |
210,000 ohms |
|
Coil Inductance |
360 mh<=
SPAN style=3D"COLOR: #006699"> |
870 mh<=
SPAN style=3D"COLOR: #006699"> |
3500 mh=
|
35 h |
150 h |
|
Damping Factor ( =B1 20%)
|
.031 |
.031 |
.031 |
.035 |
.035 |
|
Damping Constant<=
SPAN style=3D"COLOR: #006699"> |
1178 |
2862 |
12656 |
133255<=
SPAN style=3D"COLOR: #006699"> |
591794<=
SPAN style=3D"COLOR: #006699"> |
|
Displacement Limit |
0.5 in<=
SPAN style=3D"COLOR: #006699"> |
0.5 in<=
SPAN style=3D"COLOR: #006699"> |
0.5 in<=
SPAN style=3D"COLOR: #006699"> |
0.5 in<=
SPAN style=3D"COLOR: #006699"> |
0.5 in<=
SPAN style=3D"COLOR: #006699"> |
|
Inertial Mass |
33 oz |
33 oz |
33 oz |
29.0 oz=
|
29.0 oz=
|
|
Orientation Angle=
|
=B1 5=B0 |
=B1 5=B0 |
=B1 5=B0 |
=B1 5=B0 |
=B1 5=B0 |
|
Mechanical |
|
Height |
5.40 in=
|
5.40 in=
|
5.40 in=
|
5.40 in=
|
5.40 in=
|
|
Diameter |
4.38 in=
|
4.38 in=
|
4.38 in=
|
4.38 in=
|
4.38 in=
|
|
Weight |
9.75 lbs |
9.75 lbs |
9.75 lbs |
9.50 lbs |
9.50 lbs |
<=
/TBODY>
Jim O'Donnell BC-Geophysics
Geophysi=
cal Consultant/Contractor
Geotechnical/Geothermal/Oil & Gas/Minin=
g Applications
Seismic Surveys- Surface Waves, Refraction, & Refl=
ection
Ground Penetrating Radar, Resistivity, Magnetic, & VLF-EM =
Surveys
Geophysics@.......... 702.293.5664 702.281.9081 c=
ell
Boulder City, NV
---------- Original Mess=
age ----------
From: Geoffrey <gmvoeth@...........>
To: "PSN=
_LIST" <psnlist@..............>
Subject: Damping CDR for HS10-1=
Date: Fri, 24 Jun 2011 16:12:12 -0700
Hello PSN,
I hav=
e never found the exact specs for the HS10-1
which i now have.
In regards to damping;
Which sounds more realistic,
h(mechanical)=
=3D 0.35
or
hm =3D 0.035
??
___________________=
_______________________________________
Public Seismic Network Ma=
iling List (PSNLIST)
To leave this list email PSNLIST-REQUEST@SEI=
SMICNET.COM with
the body of the message (first line only): unsubscr=
ibe
See http://www.seismicnet.com/maillist.html for more information.=
[ Top ]
[ Back ]
[ Home Page ]