|
 |
Specifications |
|
|
|
| Frequency |
 |
| Natural Frequency
(Fn): |
|
10 Hz
± 2% |
| Typical Spurious
Frequency: |
|
> 250
Hz |
|
|
|
| Resistance |
|
|
|
| DC Resistance (Rc) |
|
425 ohms
± 2% |
|
|
|
| Distortion |
|
| Harmonic distortion @ 12 Hz with
driving velocity of 0.7 in/s (1.8 cm/s) P-P |
|
<0.05% |
|
|
|
| Sensitivity |
|
| Intrinsic Voltage Sensitivity
(G): |
|
.570 V/in/s
± 2% 0.224 V/cm/s |
| Normalized
Transduction Constant: |
|
.0276 sq.root
of Rc V/in/s
.0109 sq.root of Rc V/cm/s |
|
|
|
| Damping |
|
| Open Circuit Damping (Bo)
|
|
.68 ±
2% |
| Damping
Constant (BcRt) |
|
345.5 |
|
|
|
| Physical Specifications |
|
| Moving
Mass (M): |
|
.409 oz.,
11.6 g ± 2% |
| Coil
Excursion P-P: |
|
>.040 in
(.102 cm) MIN
>.060 in (.150 cm) MAX |
|
|
|
| Operating and Storage |
|
| Temperature: |
|
-45°C to
+100°C |
| Maximum
Operating Temperature: |
|
+100°C
continuous duty |
| Dimensions |
|
|
| Weight |
|
3.81 oz (108
g) |
| Diameter |
|
1.12 in (2.84
cm) |
| Height (less
terminals) |
|
1.30 in (3.30
cm) |
| * terminal length is |
|
.160 in (.41 cm) |
|
|
|
| Orientation: |
|
maintains
specification tolerances at vertical to 20° tilt |
|
|
|
| Cases Available: |
|
| Land |
|
|
| Marsh |
|
|
| 3-Component |
|
|
|
|
|
| Specifications are subject to change
without notice. |
|
|
Lowest distortion (<.05%)
from Geo Space combines in a single geophone the closest
tolerances (±2%) with the lowest harmonic distortion (<0.05%) and the
highest spurious response (>250 Hz) with a full three year warranty on all
specifications.