Welcome To Seismic Source Company

Seismic Source Company is a manufacturer of seismic instruments and data acquisition systems. Its products are used in a broad range of applications: Seismology, Structural Monitoring, Seismic Site Evaluation, Civil Engineering, Gas and Oil Exploration, Industrial Vibration Monitoring.

Products

sigma3plus
The Robust & Versatile Nodal Seismograph
 

Sigma 4+ Improvements:

New Streamlined Case Design

Less Weight (33% less)

Same excellent performance as Sigma 4

Optional Internal Co-Processing RABbit Board

 

Hardware Features:

Continuous Recording Standard - For Monitoring and Autonomous Operation

Internal or External GPS - For clock discipline and location information

Optional Mesh Radio Network - A low-power network for deployment, plus command and control, of nodes

Cable, Wi-Fi, or Cellular Ethernet - Provides "in the field" data offloading while recording

Hot-Swap External Storage Option - For collecting data while recording

Optional Internal Battery (99 watt/hour) - Provides about 48 hours of operation

Optional Internal Sensor (2 Hz geophones)

Sensor By-Pass Connector - For calibration of ADC or internal sensors, also connection of other external sensors

Trigger connector - Trigger via hammer switch or voltage level change

Rugged IP67 Case

 

Available Software:

Event Monitor (Local Monitoring)

Tremor Cloud (Remote Monitoring)

Optional Active Acquisition Package

Plus all necessary utilities

 

Acquire Active Data:

Vibroseis w/ Force 3

Dynamite w/ BoomBox 3

Impulsive w/ RTM 3

 

Acquire Passive Data:

Hydraulic Fracturing Monitoring

Surface Wave Acquisition

Long-term Permanent Monitoring

Earthquake Monitoring

sigma4 plus

 

             electronics             Gain Sigma 4-3 Sigma 4-4 Sigma 4-3+ Sigma 4-4+
Input Channels   3 4 3 4
Convertor Circuit   Sigma 3 DAQ4 Sigma 3 DAQ4
PreAmp Gains   Low x1 (0 dB)
High x16 (24 dB)
Low x1 (0 dB)
Mid x4 (12 dB)
High x16 (24 dB)
Low x1 (0 dB)
High x16 (24 dB)
Low x1 (0 dB)
Mid x4 (12 dB)
High x16 (24 dB)
Maximum Input Low 5 Volts P2P 7 Volts P2P 5 Volts P2P 7 Volts P2P
Mid - 1.662 Volts P2P - 1.662 Volts P2P
High 0.313 Volts P2P 0.4375 Volts P2P 0.313 Volts P2P 0.4375 Volts P2P
Typical Dynamic Range
@500sps
Low 126 dB 125 dB 126 dB 125 dB
Mid - 124 dB - 124 dB
High 122 dB 120 dB 122 dB 120 dB
Typical Harmonic Distortion
@500sps
Low 0.0001% 0.0001% 0.0001% 0.0001%
Mid - 0.0001% - 0.0001%
High 0.0001% 0.0001% 0.0001% 0.0001%
Typical Noise Floor
@500sps
Low 0.8 uVolts RMS 1.2 uVolts RMS 0.8 uVolts RMS 1.2 uVolts RMS
Mid - - - -
High 0.08 uVolts RMS 0.15 uVolts RMS 0.08 uVolts RMS 0.15 uVolts RMS
Sample Rates   125, 250, 500, 1000, 2000 & 4000 sps 125, 250, 500, 1000, 2000, 4000, 8000, 16000, 32,000 and 64,000 sps 125, 250, 500, 1000, 2000 & 4000 sps 125, 250, 500, 1000, 2000, 4000, 8000, 16000, 32,000 and 64,000 sps
Sample Intervals   8000, 4000, 2000, 1000, 500 & 250 μSecs 8000, 4000, 2000, 1000, 500, 250, 125, 62.5, 31.25,15.625 μSecs 8000, 4000, 2000, 1000, 500 & 250 μSecs 8000, 4000, 2000, 1000, 500, 250, 125, 62.5, 31.25,15.625 μSecs
Low Cut Filters   Digital Digital Digital Digital
High Cut Filters   85% Nyquist 85% Nyquist 85% Nyquist 85% Nyquist
Bandwidth   DC to 85% Nyquist DC to 85% Nyquist DC to 85% Nyquist DC to 85% Nyquist
Maximum Trace Length   Continuous Recording Continuous Recording Continuous Recording Continuous Recording
Input Impedance   20 kOhm 100 kOhm 20 kOhm 100 kOhm
 physical              External USB   Ruggized 19-pin Ruggized 19-pin Ruggized 19-pin Ruggized 19-pin
Mesh Radio Network   Optional Optional Optional Optional
100Base-Tx Ethernet   Rugged 10 pin MS style Rugged 10 pin MS style Rugged 10 pin MS style Rugged 10 pin MS style
External Trigger   Yes Yes Yes Yes
Internal Memory   8 Gbytes 8 Gbytes 8 Gbytes 8 Gbytes
Internal Battery   Optional Optional Optional Optional
Internal Coprocessor   No Optional No Optional
Internal Sensor   Optional Optional Optional Optional
Power Requirement   0.4 Watts/channel 0.4 Watts/channel 0.4 Watts/channel 0.4 Watts/channel
Voltage Requirement   9-28 Volts 9-28 Volts 9-28 Volts 9-28 Volts
Case Type   Aluminum ABS Aluminum ABS
Size   393 x 140 x 57 mm
15.5 x 5.5 x 2.25 in
353 x 140 x 66 mm
13.9 x 5.5 x 2.6 in
393 x 140 x 57 mm
15.5 x 5.5 x 2.25 in
353 x 140 x 66 mm
13.9 x 5.5 x 2.6 in
Weight (with options)   7.1 lbs (3.7 kg) 5.8 lbs (2.5 kg) 7.1 lbs (3.7 kg) 5.8 lbs (2.5 kg)
Temperature Range   -40 C to 80 C -40 C to 80 C -40 C to 80 C -40 C to 80 C
 
sigma4   sigma4+

Original Sigma 4

 

New Sigma 4+

Downloads:

  Sigma4+ Brochure Download Sigma4+ Brochure

Seismic Source Co

2391 E. Coleman Rd.
Ponca City, OK 74604
Phone: (580) 762-8233
Fax: (580) 762-1785
email: This email address is being protected from spambots. You need JavaScript enabled to view it.