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HS-10
Geophone
(Cutaway Drawing
at Left) |
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|
 Geo Space Corporation has manufactured inertial sensors for nearly
three decades and offers a family of high quality, low cost geophones for a
variety of industrial and military uses. Geo Space geophones have an unlimited
shelf life and provide years of trouble-free service in applications where
accurate motion sensing is required.
The HS-10 is a high-sensitivity,
self-generating velocity detector with extremely low natural frequencies. It
has been used for nearly three decades to detect seismic activity in
applications such as seismology, structural analysis, etc.
HS-10 seismometers
are available in horizontal and vertical models, with 1 and 2 Hz natural
frequencies. Natural frequency of 1/2 Hz is optionally available on
request.
Sensitivities range from about 3 to over 60 V/ips, depending upon
the coil configuration. An optional calibration coil can be used to
electrically excite the unit during field testing. Waterproof covers, pressure
housings and 3-component cases are also available.
|
| HS-10-1
|
| Functional |
| Sensitivity
( ± 10%) |
2.99
V/ips |
4.66
V/ips |
9.80
V/ips |
29.8
V/ips |
62.8
V/ips |
| Natural
Frequency ( ± 10%) |
1
Hz |
1
Hz |
1
Hz |
1
Hz |
1
Hz |
| Coil
Resistance ( ± 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 ( ± 20%) |
.031 |
.031 |
.031 |
.035 |
.035 |
| 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 |
±
5° |
±
5° |
±
5° |
±
5° |
±
5° |
| 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 |
| Environmental (All Models) |
| Operating
Temperature |
-20° to
160°F |
-20° to
160°F |
-20° to
160°F |
-20° to
160°F |
-20° to
160°F |
| Storage
Temperature |
-60° to
185°F |
-60° to
185°F |
-60° to
185°F |
-60° to
185°F |
-60° to
185°F |
| Shock |
50
G |
50
G |
50
G |
50
G |
50
G |
|
| HS-10-2
|
| Functional |
| Sensitivity
( ± 10%) |
2.99
V/ips |
4.66
V/ips |
9.80
V/ips |
29.8
V/ips |
62.8
V/ips |
| Natural
Frequency ( ± 7.5%) |
2
Hz |
2
Hz |
2
Hz |
2
Hz |
2
Hz |
| Coil
Resistance ( ± 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 ( ± 20%) |
0.19 |
0.19 |
0.19 |
0.23 |
0.23 |
| Damping
Constant |
761 |
1847 |
8170 |
89636 |
398080 |
| Displacement
Limit |
0.5
in |
0.5
in |
0.5
in |
0.5
in |
0.5
in |
| Inertial
Mass |
25.6
oz |
25.6
oz |
25.6
oz |
21.6
oz |
21.6
oz |
| Orientation
Angle |
±
10° |
±
10° |
±
10° |
±
10° |
±
10° |
| Mechanical |
|
| Height |
5.25
in |
5.25
in |
5.25
in |
5.25
in |
5.25
in |
| Diameter |
4.38
in |
4.38
in |
4.38
in |
4.38
in |
4.38
in |
| Weight |
9
lbs |
9
lbs |
9
lbs |
8.75
lbs |
8.75
lbs |
| Environmental (All Models) |
|
| Operating
Temperature |
-20° to
160°F |
-20° to
160°F |
-20° to
160°F |
-20° to
160°F |
-20° to
160°F |
| Storage
Temperature |
-60° to
185°F |
-60° to
185°F |
-60° to
185°F |
-60° to
185°F |
-60° to
185°F |
| Shock |
50
G |
50
G |
50
G |
50
G |
50
G |
|
| Notes: |
|
| 1. |
Reference
temperature for functional parameters is 25°C |
| 2. |
Orientation
angle is referenced to vertical. Model HS-10 geophones are designed to operate
in only one orientation: please specify vertical or horizontal. Orientation
angles for horizontal geophones are ± 0.25° and ± 1°
referenced to horizontal for 1 and 2 Hz models, respectively. |
| 3. |
Damping
factor is ratio of critical damping. |
| 4. |
Sensitivity,
natural frequency, coil resistance and damping factor are 100% tested and
calibration data are supplied with each unit. Consult the factory for special
tests required to guarantee other functional parameters and shock
limits. |
| 5. |
Consult the
factory for ordering information and specifications on optional calibration
coil and protective housings. |
|
|
|
Click
HERE to load chart for Seismic Detector Response
Curve Output VS. Frequency (HS-10 & HS-10-1B). (115 KBytes) |
|
|
|
Specifications are subject to change without
notice. |
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