Home > Products > Equivalent to SM-4 geophone 40Hz Sensor Vertical
Product Details:
Place of Origin: China
Brand Name: EGL
Certification: ISO9001
Model Number: EG-40-II
Payment & Shipping Terms:
MQQ: 1 pcs
Price: Negotiable
Packaging Details: Carton
Delivery Time: 10 work days
Payment Terms: T/T, Credit Card
Supply Ability: 10000 pcs/month
Product Description


Equivalent to SM-4 geophone 40hz sensor Vertical
The SM-4 geophone element 40Hz is a conventional type of moving coil geophone with small error in working parameters and stable and reliable performance. The structure is reasonable in design, small in size and light in weight, and is suitable for seismic exploration of strata and geological environments of different depths.


SM4-Geophone-40hz-V001.jpg


Specification
Type

EG-40-II (SM-4 equivalent)

Natural Frequency ( Hz )40 ± 5%
Coil resistance(Ω)540 ± 5%
Open Circuit Damping0.620 ± 5.0%
Damping With Shunt Resistor0.648 ± 5.0%
Open Circuit Intrinsic Voltage Sensitivity( v/m/s )32.5 v/m/s ± 5.0%
Sensitivity With Shunt Resistor ( v/m/s )30.3 v/m/s ± 5.0%
Damping Calibration-Shunt Resistance (Ω)7500
Harmonic distortion ( % )<0.2%
Typical Spurious Frequency (Hz )≥300Hz
Moving Mass ( g )9.3g
Typical case to coil motion p-p ( mm )1.8mm
Allowable Tilt≤20º
Height ( mm )32
Diameter ( mm )26
Weight ( g )80
Operating Temperature Range ( ℃ )-40℃ to +100℃
Warranty Period3 years


All parameters specified here in are rated at a temperature 20℃±2℃ .