Ant-3C
3C Seismic Node Introduction
Ant-3C is a new generation 3C seismic node with ultra-high resolution by Earth Pulse Technology Co., Ltd. The Ant-3C has integrated GPS/BDS clock synchronization algorithm, ultra-low power design method, most advanced wireless charging and wireless pulse communication technologies. It is highly integrated, no connectors with long battery life, and high reliability which is potential to be used in any harsh environments. The new analogdigital conversion technology is used to greatly improve the dynamic range rather than other equipment, it means Ant-3C could detect weaker vibration signal.
Physical
Parameter | Index |
Weight | 1450g |
Size | 90mm×100mm×128mm(Without Spike) |
Working Temperature | -40℃ to +70℃ |
Waterproof | IP68 |
Endurance Time @ 25 ℃ | 40 days(24 hours continuously working internal storage) 7 days(8 hours real time data transferring) |
Charging Time | 9 hours |
Instrument
Parameter | Index |
Number of Channels | 3 |
ADC | 32 bit |
Sampling Rate | 0.25ms,0.5ms,1ms,2ms,4ms,8ms,10ms,20ms |
Preamplifier Gain | 0-36dB(6dB steps) |
Low Cut Filter | 1Hz,DC removed or turn off |
Anti Aliasing Filter | 206.5Hz@2ms(82.6% Nyquist frequency) optional maximum phase or minimum phase |
0dB @ 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 | 150dB |
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 |
Geophone
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 |
