Products Description
The 3C Geophone is a high-precision three-component seismic sensor designed for scientific research, geophysical exploration, and advanced earthquake monitoring applications. It integrates ultra-low noise electronics, high-resolution 32-bit ADC conversion, and GNSS synchronized timing to ensure accurate and reliable seismic data acquisition in complex field environments.
Engineered for research institutions and laboratories, this system delivers stable performance in long-term deployments and supports high-resolution waveform recording across multiple frequency ranges.
TECHNICAL SPECIFICATION |
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| Physical | |||
| Parameter | Index | ||
| Weight | 1750g(5Hz)/2450g(2Hz)/Without spike | ||
| Size | 90mmx100mmx128mm(5Hz)/90mmx100mmx189mm(2Hz) | ||
| Working Temperature | -40℃ to+70℃ | ||
| Waterproof | IP68 | ||
| Endurance Time@25℃ | 40 days(24 hours continuously working internal storage) | ||
| Charging Time | 6.5 hours |
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| Instrument | |||
| Parameter | Index | ||
| Number of Channels | 3 channel △- ∑ADC | ||
| ADC | 32 bit | ||
| Sampling Rate | 0.25ms,0.5ms,1ms,2ms,4ms,8ms,10ms,20ms | ||
| Preamplifier Gain | 0-24dB(6dB steps) | ||
| Low Cut Filter | 1Hz,DC removed or turn off | ||
| Anti Aliasing Filter | 206.5Hz@2ms(82.6%Nyquist frequency)optional Linear phase or minimum phase |
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| OdB @Max Input | |||
| 2.5Vpeak | |||
| Equivalent Input Noise @12dB |
0.5uV@0.25ms/0.2uV@2ms/0.14uV@4ms | ||
| Instantaneous Dynamic Range @12dB |
118.9dB@0.25ms/126.8dB@2ms/130dB @4ms | ||
| Total Dynamic Range | 145dB | ||
| Timing Standard | <1ppm | ||
| Time Accuracy | ±10μs | ||
| Internal Storage | Extended from 32GB to 128GB | ||
| Built in GPS | GPS,BDS,GLONASS,GNSS(Concurrent reception)are used for timing and positioning |
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| Sensor | |||
| Parameter | Index | Index | |
| Optional Detector | 5Hz | 2Hz | |
| Natural Frequency(Hz) | 5±7.5% | 2±15% | |
| DC Resistance(Ω) | 1850±5% | 6400±10% | |
| Sensitivity(V/m/s) | 80±5% | 260±15% | |
| Damping | 0.7±7.5% | 0.7±15% | |
| Distortion | ≤0.2% | ≤3% | |
| Aliasing(Hz) | ≥120 | ≥90 | |
Valid Frequency Range(Hz) |
0.2~1000 |
0.1~300 |
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Why Choose This 3C Geophone
Unlike conventional geophones, this system is built for research-grade seismic data acquisition, offering:
- Higher resolution (32-bit vs traditional 24-bit systems)
- Lower noise floor for micro-seismic detection
- Multi-GNSS synchronization for large network deployments
- Extended dynamic range for complex geological environments
It is specifically optimized for institutions requiring high data integrity, repeatability, and long-term field reliability.
3C Geophone for Research Institutions
This 3C Geophone is widely suitable for:
- Universities and geoscience laboratories
- National geological survey institutes
- Earthquake research centers
- International seismic monitoring projects
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