GEObit Digitizer/Recorders

GEOsix Low Power Digitizer/Recorder

GEObit introduces the GEOsix series high-resolution 6+1 analog seismic channels telemetry digitizer/recorder. The size of the instrument is only 168 x 106 x 68 mm. The power consumption is only 1.2 W for 6 channels. The available sampling rate is 100 to 500 SPS/6ch, 100 to 1000 SPS/3ch, and optional lower sampling intervals are supported. A built-in GPS receiver combined with an ultra-accurate DPLL unit, providing time drift 10e-9 sec, ensures timing stability even in the absence of a GPS signal. NTP timing is also available. The unit is very flexible and accepts several types of analog front end units so that any type of seismic sensor can be connected. Additionally, it provides eight extra-low resolution and rate analog inputs for seismometer mass position monitoring, or any other environmental parameter monitoring.
Eight TTL command outputs are supported for seismometer control or for any other external device control. Typically the digitizer supports a differential variable gain preamplifier. Our force-balance sensor front end is also supported, providing a wide-band response (10 sec – 98 Hz) and high sensitivity 1500 V/m/s by connecting a C100 sensor. Acquisition parameters and operation modes can be set from the user – friendly web interface.

GEOsix technical specifications

  • High-resolution digitizer
  • Eight extra analog inputs
  • Eight TTL command lines
  • Low power consumption
  • Dimensions 168x106x68 mm
  • GPS time / Precision DPLL
  • 100-500 samples per second
  • 6 seismic input channels
  • Ultra low noise preamplifier
  • Embedded Open Source OS
  • Embedded SeedLink Server
  • Embedded Earthworm Serve
  • Continuous/Trigger recording
  • Advanced functionality
  • Smart Network Operation

The unit operates in continuous mode, triggered mode or both, and data are streamed through different data ports. Local data storage is selectable, as well as log file information. The unit supports advanced functionality, implemented from a combination of trusted open-source software components. Because of its open-source architecture, it is able to run any custom application thus providing a next day solution to the user. The hardware is based on an embedded ARM9 400 MHz ARM Linux board. The data is stored in a mini-SEED format, on the microSD card, or on a removable USB stick. The instrument supports a 10/100 Ethernet port and a debug port. FTP, SFTP, SSH are also available. The state of health is transmitted over UDP packets upon request.

GEOsix brochure


GEOthree Low Power Digitizer/Recorder

GEObit introduces the GEOthree series high resolution 3+1 analog seismic channels telemetry digitizer/recorder. The size of the instrument is only 168 X 106 X 68 mm. The power consumption is only 0.9 W for 3 channels. The available sampling rate is 100 to 1000 SPS and optional lower sampling rates are supported. A built-in GPS receiver combined with an ultra-accurate DPLL unit, providing time drift 10e-9 sec, ensures timing stability even in the absence of a GPS signal. NTP timing is also available. The unit is very flexible and accepts several types of analog front end units so that any type of seismic sensor can be connected. Additionally, it provides eight extra-low resolution and rate analog inputs for seismometer mass position monitoring, or any other environmental parameter monitoring. Eight TTL command outputs are supported for seismometer control or for any other external device control. Typically the digitizer supports a differential variable gain preamplifier. Our force balance sensor front end is also supported, providing a wide-band response (10 sec – 98 Hz) and high sensitivity 1500 V/m/s, by connecting a C100 sensor. Acquisition parameters and operation modes can be set from the user–friendly web interface.

GEOthree technical specifications

  • High-resolution digitizer
  • Four extra analog inputs
  • Four TTL command lines
  • Low power consumption
  • Dimensions 168x106x68 mm
  • GPS time / Precision DPLL
  • 100-1000 samples per second
  • 3+1 seismic channels
  • Ultra low noise preamplifier
  • Embedded Open Source OS
  • Embedded SeedLink Server
  • Embedded Earthworm Server
  • Continuous/Trigger recording
  • Advanced functionality
  • Smart Network Operation

The unit operates in continuous mode, triggered mode or both, and data are streamed through different data ports. Local data storage is selectable, as well as log file information. The unit supports advanced functionality, implemented from a combination of trusted open-source software components. Because of its open-source architecture, it is able to run any custom application thus providing a next day solution to the user. The hardware is based on an embedded ARM9 400MHz ARM Linux board. The data are stored in a mini-SEED format on the microSD card or on a removable USB stick. The instrument supports a 10/100 Ethernet port and a debug port. FTP, SFTP, SSH are also available. The state of health is transmitted over UDP packets upon request.

GEOthree brochure


32bit SeedLink Digitizer/Recorders

New generation “state of the art” 32-bit ADC SeedLink digitizer/ recorders, designed using our latest technology. They support three or six analog channels with ultra high resolution, especially in higher sampling rates from 250 to 1000 SPS. The effective resolution is 23.7 bits at a 250 SPS data rate, therefore providing a dynamic range greater than 138 dB. The effective resolution is even greater at lower sampling rates, and it becomes close to 32 bits when the sampling rate is low like 10 SPS. (Delta-Sigma technology)

The instruments are based on the latest technology 32 bit ARM type processor. The hardware is totally customized and there is no use of any third-party hardware boards.

Total power consumption is very low, only 0.6 W, allowing the instruments to be in operation for a long period, powered from a small 7.2Ah lead-acid battery. Timing is provided from a very accurate DPLL (digital PLL) unit synchronized from a GPS receiver. The drift is extremely low (4*10 – 9 sec) when GPS is off, but it is periodically switched on (programmable) and synchronizes the DPLL. The digitizer also provides real-time data streaming in parallel with local (microSD) data storage, through the serial port or Ethernet port. The SRi32S unit model supports an integrated SeedLink server.

The SeedLink digitizer also provides four extra analog lines, and four digital control lines, which may be used for seismometer control, mass monitoring, etc.

The SeedLink digitizer/recorder is ideal for micro-cracking monitoring, hydraulic fracturing monitoring, micro-seismic monitoring, and other applications where high resolution and high dynamic range is required. Additionally, broadband seismometers like the STS-2, match perfectly with the instrument because of the high resolution provided.



The SRi32L and SRi32D, 32bit Seismic Digitizer/Recorder with SeedLink Server

  • 32 bit ADC compact digitizer/recorder in a miniature size.
  • Ultra-high dynamic range at higher sampling rates.
  • Three seismic analog channels.
  • Ultra-Low Power consumption of 0.9 W
  • Operates for one week powered from a small 12Ah lead-acid battery.
  • GPS/DPLL time accuracy with a drift of only 4*10 – 9sec
  • Sampling Rate 50 – 1000 SPS
  • Continuous Recording Mode
  • Removable microSD data storage
  • Embedded SeedLink server
  • Totally in-house hardware design (not commercial embedded HW)
  • Ethernet data streaming.
  • FTP, SFTP, SSH, Telnet, Web Interface
  • Telemetry over UHF, 900MHz, Wi-Fi, Wi-Fly, GSM.
  • Operating Temp -20 to +70°C
  • Serial or Ethernet data & control port
  • LCD screen
  • Three extra analog lines +/-10 VPP for seismometer monitoring
  • One extra general-purpose analog line +/-10 VPP
  • Three digital lines for seismometer control (lock-unlock-centering)
  • One extra general-purpose digital line.

The SRi-32 Seismic Digitizer/Recorder adapted for hydraulic fracturing monitoring

  • 32 bit ADC compact digitizer/recorder in a miniature size.
  • Ultra-high dynamic range at higher sampling rates.
  • Three or six analog channels.
  • Ultra-Low Power consumption 0.76 W
  • Operates for one week powered from a small 9Ah lead-acid battery.
  • GPS/DPLL time accuracy with a drift of only 4*10 – 9sec
  • Sampling Rate 1 – 1000 SPS
  • Continuous Recording Mode
  • Dual Removable microSD data storage
  • FAT32 filing system
  • Semi-compressed CORE32 data format.
  • Latest ARM type processor, running at 60 MHz.
  • Totally in-house hardware design (not commercial embedded HW)
  • Serial or Ethernet data streaming in parallel with recording.
  • Real-time data processing for P & S wave arrival time detection.
  • Data Processing information storage on the secondary microSD flash or automatic transmission to the acquisition center.
  • Telemetry over UHF, 900 MHz, Wi-Fi, Wi-Fly, GSM.
  • Ideal for hydraulic fracturing crack detection when connected with the S-400 sensor.
  • Operating Temp -20 to +70°C
  • Serial or Ethernet data & control port
  • LCD screen (optional)


The SRi-32-SIX! 6 channels Seismic Digitizer/Recorder

  • 32 bit ADC compact digitizer/recorder in a miniature size.
  • Ultra-high dynamic range at higher sampling rates.
  • Six seismic analog channels.
  • Ultra-Low Power consumption of 1 W
  • Operates for one week powered from a small 12Ah lead-acid battery.
  • GPS/DPLL time accuracy with a drift only 4*10 – 9sec
  • Sampling Rate 50 – 500 SPS
  • Continuous Recording Mode
  • Removable microSD data storage
  • Embedded SeedLink server
  • Totally in-house hardware design (not commercial embedded HW)
  • Ethernet data streaming.
  • FTP, SFTP, SSH, Telnet, Web Interface
  • Telemetry over UHF, 900MHz, Wi-Fi, Wi-Fly, GSM.
  • Operating Temp -20 to +70°C
  • Serial or Ethernet data & control port
  • LCD screen
  • Three extra analog lines +/-10 VPP for seismometer monitoring
  • One extra general-purpose analog line +/-10 VPP
  • Three digital lines for seismometer control (lock-unlock-centering)
  • One extra general-purpose digital line.

Attachments

SRi32L brochure

SRi32S brochure

SRi32 six! brochure