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SN7C Series Super Geophone
Product Explanation:SN7C Series Super Seismic geophone was developed to meet the needs of high resolution operations of seismic data acquisition. With festures of wide frequency-band, high spurious frequency,low distortion, reasonable damping coefficient, it can improve resolution of exploration and accuracy of data
Product types and specifications:
Specifications | ||||||
Model |
Sn7C-8 |
Sn7C-10 |
Sn7C-14 |
Sn7C-28 |
Sn7C-35 |
Sn7C-40 |
Natural frequency(Hz) |
8±2.5% |
10±2.5% |
14±2.5% |
28±2.5% |
35±2.5% |
40±2.5% |
Open circuit damping |
0.337 |
0.25 |
0.2000 |
0.600±2.5% |
0.681±5% |
|
Damping with shunt resistor |
0.600±2.5% (2400Ω) |
0.686±2.5% (1000Ω) |
0.600±2.5% (640Ω) |
|
||
Sensitivity(v/m/s) |
28.8±2.5% |
31.0±2.5% |
32.5±2.5% |
34.0±2.5% |
||
Coil resistance(Ω) |
375±2.5% |
385±2.5% |
560±2.5% |
662±2.5% |
||
Distortion(%) |
<0.1% |
|||||
Spurious frequency(Hz) |
250 |
300 |
400 |
500 |
||
Moving mass(g) |
11.3 |
11 |
11.6 |
10.2 |
9.3 |
|
Coil moving p-p(mm) |
2.0 |
1.6 |
1.8 |
|||
Diameter(mm) |
25.4 |
26 |
||||
Height(mm) |
32.0 |
|||||
|
Warranty period(year) (Geophone element) |
3 |
|||||
Operating temperature (°C) |
-40°C~+100 |
|||||
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