Earth Pulse Technology Co., Ltd.

Ant -1C

1C Seismic Node Introduction

Ant -1C1C Seismic Node IntroductionAnt-1C is a small, smart seismic nodes with high reliability by EarthPulse Technology Co., Ltd. It is used to reduce the difficulty forseismic exploration production, greatly improve the efficiency andlower the cost for project. The Ant-1C has integrated GPS/BDS clocksynchronization algorithm, ultra-low power design method, mostadvanced wireless charging and wireless pulse communication technologies. It is highly integrated, no connectors with long battery life, which is potential used for automatic deploy and retrieve. The Ant-1C is high reliable to be used in any harsh environments. And the newanalog-digital conversion technology is used to greatly improve thedynamic range rather than other equipment.

Physical

Parameter	Index
Weight	580g
Size	55mm x 55mm x 148mm（Without Spike)
Working Temperature	-40℃ to +70℃
Waterproof	IP68
Working Time @ 25 ℃	25 days @2ms 50 days segmented (12 hours ON / 12 hours SLEEP)
Charging Time	3.5 hours

Instrument

Parameter	Index
Number of Channels	1
Sampling Rate	0.25ms,0.5ms,1ms,2ms,4ms
Preamplififier Gain	0-24dB(6dB steps)
Low Cut Filter	1Hz,DC removed or Disable
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
Time Accuracy	±10μs
Internal Storage	Extended from 8GB to 32GB
Built in GPS	GPS, BDS, GLONASS,GNSS(Concurrent reception) are used for timing and positioning

Geophone

Parameter	Index	Index
Optional Geophone	5Hz	10Hz
Natural Frequency	5±7.5%	10±3.5%
DC Resistance	1850±5%	1800±3.5％
Sensitivity	80±5％	85.8±3.5％
Damping	0.6±7.5％	0.48~0.54
Distortion	≦0.1%	≦0.1%
Aliasing	≧170	≧240