Seismic Data Acquisition System 3D Telemetry with Distributed Design

详情

The SE***4NTN series seismic data acquisition system is a portable wired telemetry seismic data acquisition system. This system uses advanced networking technology for distributed real-time data acquisition and display. The system is composed of the SE***4NTN main control unit, a data acquisition station (RSU), a central hub (CSU), digital transmission composite cables, and remote detonation decoder. It can be widely applied wherever high precision two or three dimensional seismic surveying is required, such as surveying for engineering, coal, minerals, and/or hydroelectric power.

Main Properties
1. Using networking and control technology, the system can be extended with up to ***8 sensor modules.
2. The main control unit is equipped with two data flow ports and built-in remote detonation encoder.
3. Real time data display, storage, and playback.
4. Data acquisition modules use true *4 bit high precision analog to digital converters and open addressing technology, and have large dynamic ranges, low power consumption, and are easy to use.
5. Data acquisition modules each has *2 channels, a water-proof cast-aluminum shell, and are small, lightweight and easy to maintain.
6. The central hub has a *0Mbps transmission speed and can support up to **6 modules, and is small, lightweight and easy to maintain.
7. The transmission range between the remote control encoder and decoder is *0 km on open ground. The system uses a safety protocol to raise its reliability and safety. The design includes two high precision auxiliary channels.
8. The system is developed using Windows, field usage is simple and quick. The system is designed for both oil surveying seismic technology and engineering seismic surveying.

Main Technical Specifications
Main Control Unit (SE***4NTn):
Windows 7 operating system
Intel (R) Atom (TM) CPU N**0 1.*6GHz, 1.*7GHz RAM 2.*0 GB **0 GB HD *2 inch, ***6x**8

Data flow ports: 1 (*0 Mbps)
Built-in remote detonation encoder: ******5 MHz, 1W, 8 channels
Built-in timing GPS (optional): *5 meter positional accuracy, 0.5 microsecond timing accuracy
Built-in auxiliary channel: TB channel / 
Printer and tape drives (optional): PC compatible USB printer and tape drive
Control software:
    Monitoring system
    Seismic data acquisition, data quality control
    Real-time noise monitoring, data display and recording

RSU*2 Data Acquisition Unit Technical Specifications
A/D Converter:        ΔΣ*4 bit
Localisation:        automatic self-localisation
Data filtering:        linear filter
Number of channels:    *2
Sampling frequency:    0.**5 - *0 ms (selectable)
Longest length:        *1 kB/channel
Frequency response range: 1 - ***0 Hz
Cross-channel suppression: < ***0 dB
Dynamic range:        **0 dB
Harmonic distortion:     ***4 dB
Largest signal:    1.6 V rms
Noise level:        < 1 uV rms
Power usage:        2.5 W / unit
Operating temperature:     **0 to *0 degrees C
Storage temperature: **0 to *0 degrees C
Weight:            1.6 kg
Size:            **0 x *0 x **0 mm
Power source:        built-in lithium battery, *8 hours battery life

BOMTEX 2 Remote Detonator Technical Specifications
Remote control distance:    2 km (open ground)
Frequency range:        **3 - **5 MHz / 1 W / 8 channels
Timing GPS (optional):        *5 meter positional accuracy, 0.5 microsecond timing accuracy
Detonation voltage:        **0 V
Detonation interval:        *0 s
Trigger error:            < **0 microseconds
Trigger error calibration:    TB Channel
Battery life on standby mode:    *6 hours
Operating temperature:        **0 to *0 degrees C
Storage temperature:         **0 to *0 degrees C

CUS**6 Central Hub Technical Specifications
Transmission speed:        4 Mbps
Maximum number of units:    **6
Size:                **0 x **0 x **0 mm
Weight:                2.0 kg
Power source:            built-in lithium battery, *8 hours battery life