Description
- Digital Seismic Sensor (Geophone) are available frequencies from 1Hz to 100Hz vertical and horizontal direction, and geophone-consisted three-component geophones, borehole geophone, tomographic imaging geophone series with stable performance, high fidelity and consistent quality in oil, gas exploration and other fields.
Features
- 1~3Hz geophones applied for deep seismic prospecting, natural earthquake surveillance and prediction, pulse and micro seismic measurement for bridge and highways, etc.
- 4~100 Hz widely used to seismic prospecting of petroleum, coal, metallurgy, defense engineering and etc.
- High sensitivity, low-distortion, reasonable damping coefficient, good linear response, good parameter conformity, higher resolution and excellent waterproof property.
- Small-sized, easy to install, easy to operate, large ambient temperature range, can meet the demand of multi-wave component seismic data acquisition technology.
Specifications
Medium–High Frequency
(vertical and horizontal) Geophones
|
|||||||
Parameter\type name
|
P4
|
P4.5
|
P10
|
P15
|
P28
|
P30
|
P38
|
Natural Frequency (Hz)
|
4±10%
|
4.5±10%
|
10±5%
|
15±5%
|
28±5%
|
30±5%
|
38±5%
|
Sensitivity G
(v/cm.s-1) |
0.28±5%
|
0.26±5%
|
|||||
Coil Resistance Rc(Ω)
|
365±5%
|
365±5%
|
365±5%
|
500±5%
|
500±5%
|
650±5%
|
|
Internal Resistance
(Ω) |
345±5%
|
335±5%
|
310±5%
|
415±5%
|
415±5%
|
560±5%
|
|
Damping Coefficient Bt
|
0.7±10%
|
0.58±10%
|
0.58±10%
|
0.62±10%
|
0.6±10%
|
0.6±10%
|
|
Harmonic Distortion D
|
≤ 0.2
|
||||||
Insulating Resistance
Ri (MΩ) |
≥ 20
|
||||||
Coil’S Maximum Displacement P-P(mm)
|
2
|
||||||
Suspension Mass( g )
|
13.2
|
12.8
|
8.6
|
7.9
|
|||
Working Temperature
(°C) |
— 40 ~ + 70
|
||||||
Weight ( g )
|
255
|
||||||
Medium–High Frequency (vertical and
horizontal) Geophones
|
||||
Parameter\type name
|
P40
|
P60
|
P80
|
P100
|
Natural Frequency (Hz)
|
40±5%
|
60±5%
|
80±5%
|
100±5%
|
Sensitivity G
(v/cm.s-1) |
0.26 ±5%
|
0.3 ±5%
|
0.25 ±5%
|
0.25 ±5%
|
Coil Resistance Rc(Ω)
|
690±5%
|
1030 ±5%
|
735 ±5%
|
1080 ±5%
|
Internal Resistance
(Ω) |
580 ±5%
|
800 ±5%
|
685 ±5%
|
1020 ±5%
|
Damping Coefficient Bt
|
0.6 ±10%
|
0.6 ±10%
|
0.55 ±10%
|
0.5 ±10%
|
Harmonic Distortion D
|
≤ 0.2
|
|||
Insulating Resistance
Ri (MΩ) |
≥ 20
|
|||
Coil’S Maximum Displacement P-P(mm)
|
2
|
|||
Suspension Mass( g )
|
7.9
|
5.9
|
5.5
|
5.2
|
Working Temperature
|
— 40 ~ + 70(°C)
|
|||
Weight ( g )
|
255
|
|||
For more details, you may contact Worldwide Technologies, Seismic Geophone Sensor supplier in Dehradun Uttarakhand India at www.wtpl.co.in
