PRODUCTS
SM-4 Equivalent Geophone Sensor
The SM-4 equivalent geophone sensor (ST-8N/ST-10N/ST-14N/ST-28N/ST-40N/ST-60N/ST-100N) is designed for low weight, long field-life,and ultra reliable performance.Precision engineered components and computerized test equipment ensure consistency in manufacture and operation throughout and beyond the limited replacement guarantee period of three years.
● Precision machine, rotating coil design.
● Precious metal contacts for consistent reliable &prolonged field performance.
●Choice of three standard natural frequencies (8Hz, 10Hz,14Hz,28Hz,40Hz,60Hz and 100Hz).
● Vertical and Horizontal elements available for 3-C applications.
● For 2-D and 3-D seismic exploration with bandwidth from 10Hz up to 190Hz.
● 1-year limited warranty on basic element exclusive of high voltage, lightening or physical abuse.
Click here and download data sheet of SM-4 equivalent geophones. Or contact us to get special discounts.
For any inquiries, please contact with our Marketing Team at sales@seis-tech.com or Supporting Team at info@seis-tech.com.
MAIN TECHNICAL PARAMETERSSM-4 Equivalent Geophone Sensor Product Parameters
| Type | ST-8N(Equivalent to SM-4, 8Hz) | ST-10N(Equivalent to SM-4, 10Hz) | ST-14N(Equivalent to SM-4, 14Hz) | ST-40N(Equivalent to SM-4, 40Hz) |
| Natural frequency (Hz) | 8 ± 5% | 10±5% | 14 ± 5% | 40 ± 5% |
| Open circuit damping | 0.337 | 0.271 | 0.2 | 0.620 |
| Damping with calibration shunt | 0.6 ± 5% | 0.6±5% | 0.6 ± 5% | 0.648 ± 5% |
| Calibration shunt resistance(ohms) | 2400 | 1400 | 640 | 7500 |
| Open circuit sensitivity (V/m/s) | 28.8 | 28.8 | 28.8 | 32.50 |
| Sensitivity with calibration shunt(V/m/s) | 24.9±5% | 22.7±5% | 18.2 ± 5% | 30.3± 5% |
| Coil Resistance (ohms) | 375 ± 5% | 375±5% | 375 ± 5% | 540 ± 5% |
| Harmonic Distortion (%) | ＜0.2 | ≦0.2 | ＜0.2 | ＜0.2 |
| Typical Spurious Frequency (Hz) | ≧240 | ≧240 | ≧240 | ≧300 |
| Moving Mass ( g ) | 11.3 | 11.3 | 11.6 | 9.3 |
| Max. coil excursion p-p (mm) | 2.0 | 2.0 | 2.0 | 1.8 |
| Max. tilt angle | ≦20º | ≦20º | ≦20º | ≦20º |
| Element Diameter (mm) | 25.4 | 25.4 | 25.4 | 26 |
| Element Height (mm) | 32 | 32 | 32 | 32 |
| Element Weight (g) | 74 | 74 | 74 | 80 |
| Operating Temperature(℃) | -40℃ to + 100℃ | -40℃ to + 100℃ | -40℃ to + 100℃ | -40℃ to + 100℃ |
| Warranty Period | 1 year | 1 year | 1 year | 1 year |
| ● All parameters specified herein are rated at a temperature 20℃±2℃. ● 1-year limited warranty on basic element exclusive of high voltage, lightening and physical abuse. | ||||
– Other type of geophones are also available: SM-4 Equivalent, SM-6 Equivalent, SM-24 Equivalent, SG10 Equivalent, GS-20DX Equivalent, GS-32CT Equivalent, GS ONE Equivalent, 1Hz, 2Hz, 2.5Hz, 3Hz, 4Hz, 4.5Hz, 5Hz, 8Hz, 10Hz, 14Hz, 15Hz, 28Hz, 30Hz, 38Hz, 40Hz, 60Hz,80Hz and 100Hz.
Related products
