With
first class design, it adopts structure of rotating coil and strict
process as well as advanced equipment to ensure high quality of
the products. Technology of TG4 geophone reaches international advanced
level of 90s. At present, it becomes a leading product for seismic
exploration at home and abroad.
Features£º
1. Small volume, light
weight and stable operation
2. Margin tolerance of all specifications is within ¡À5%
3. Distortion ¡Ü0.2%
4. Dropping Period: than 5000 times
5. Typical Spurious Frequency ¡Ý 180 Hz
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Specification
(at 20 ¡æ)
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Parameter/Type
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TG4-8
|
TG4-10
|
TG4-14
|
TG4-28
|
TG4-35
|
TG4-40
|
TG4-60
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Natural
Frequency (Hz)
|
8¡À5%
|
10¡À5%
|
14¡À5%
|
28¡À5%
|
35¡À5%
|
40¡À5%
|
60¡À5%
|
Open
Circuit Damping
|
0.337
|
0.271
|
0.200
|
0.600¡À5%
|
0.600¡À5%
|
0.681¡À5%
|
0.600¡À5%
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Damping
Coefficient
|
0.6¡À5%
(2400¦¸)
|
0.6¡À5%
(1400¦¸)
|
0.6¡À5%
(640¦¸)
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/
|
/
|
/
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/
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Sensitivity
(V/m/s)
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28.8¡À5%
|
28.8¡À5%
|
28.8¡À5%
|
31.0¡À5%
|
32.5¡À5%
|
34.0¡À5%
|
31.0¡À5%
|
Coil
resistance (¦¸)
|
375¡À5%
|
375¡À5%
|
375¡À5%
|
385¡À5%
|
560¡À5%
|
662¡À5%
|
945¡À5%
|
Distortion
|
<
0.2%
|
Spurious
Frequency (Hz)
|
160
|
180
|
200
|
400
|
500
|
500
|
500
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Moving
mass (g)
|
11.3
|
11.3
|
11.6
|
10.2
|
9.3
|
9.3
|
8.5
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Maximum
coil excursion p. p (mm)
|
2.0
|
2.0
|
2.0
|
1.6
|
1.8
|
1.8
|
1.2
|
Diameter
(mm)
|
25.4
|
26.0
|
Height
(mm)
|
32.0
|
Warranty
Period (year)
|
3
(geophone element)
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Operating
Temperature
|
©\40¡æ
¡« + 100¡æ
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Characteristics
TOP¡ü |