Nodal Portable Seismograph Electronic Widely Used In Various Fields
Portable Nodal Seismograph
Introduction
Portable Nodal Seismograph is widely used in various fields of oil and gas, coal resource and engineering 2D and 3D seismic exploration.
Features:
* The acquisition station uses 32-bit ultra-high precision Σ-Δ ADC with ultra-low noise level.
* Built-in GPS and high precision clock, can maintain long-term synchronization.
* Built-in geophone integrated design, small size, light weight.
* Use the charging cabinet for charging and data export simultaneously.
* Mobile APP can be used to carry out real-time quality monitoring at the acquisition site and record instrument operation and deployment information.
* Compatible with active source and natural source exploration methods.
* The exploration system supports more than 100,000 channels.
* Support SEG-2, SEG-Y, SEG-D, SAC, Mini-SEED and other data formats.
* Equipped with 32 channel charging and data recovery cabinet, charging and data export at the same time.
Technical Specification
| Instrument index | |
| Parameter | index |
| Number of channels | 1 |
| Sampling rate | 0.25ms,0.5ms,1ms,2ms,4ms |
| Preamplifier gain | 0-24dB(6db step) |
| Low cut filter | 1Hz, go to DC or off |
| Anti-aliasing filter | 206.5Hz@2ms (82.6% Nyquist frequency) selectable maximum phase or minimum phase |
| Maximum input @ 0db | 2.5VpeaK |
| Equivalent input noise@12dB | 0.31uV@2ms |
| Instantaneous dynamic range@12dB | 124dB@2ms |
| Total dynamic range | 140dB |
| Time accuracy | ±10us |
| Internal storage | expandable from 8GB to 32GB |
| Built-in GPS | GPS, Beidou (simultaneous reception) for timing and positioning |
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