Professional Geophone Supplier in China
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Geophone Element

  • Geophone 8Hz

Type

EG-8-I ( Equivalent to GS-20DX 8Hz )

Natural frequency ( Hz )

8±5%

Open circuit damping

0.38

Damping with calibration shunt

0.71±5%

Calibration shunt resistance(ohm)

1800

Open circuit sensitivity (v/m/s)

28

Sensitivity with calibration shunt(v/m/s)

23±5%

Coil Resistance (ohm)

395±5%

Harmonic Distortion ( % )

0.2

Typical Spurious Frequency ( Hz )

180

Moving Mass ( g )

11

Max.coil excursion p-p (mm)

1.5

Max.tilt angle

20º

Element Diameter (mm)

25.4

Element Height (mm)

33

Element Weight (g)

87

Operating Temperature(℃)

-40 to +80


Type

EG-8-II

Natural frequency ( Hz )

8±5%

Open circuit damping

0.337±5%

Damping with calibration shunt

0.6±5%

Calibration shunt resistance(ohm)

2400

Open circuit sensitivity (v/m/s)

28.8±5%

Sensitivity with calibration shunt(v/m/s)

24.9±5%

Coil Resistance (ohm)

375±5%

Harmonic Distortion ( % )

0.2

Typical Spurious Frequency ( Hz )

240

Moving Mass ( g )

11.3

Max.coil excursion p-p (mm)

2

Max.tilt angle

20º

Element Diameter (mm)

25.4

Element Height (mm)

32

Element Weight (g)

74

Operating Temperature(℃)

-40 to +80

*Other Geophone Type available

( 2Hz,2.5Hz,3Hz,4Hz,4.5Hz,10Hz,14Hz,15Hz,28Hz,30Hz,38Hz,40Hz,60Hz,80Hz,100Hz )