Seismic Source Co

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Advanced Seismic Acquisition System

	SIGMA 4 is the most advanced, field-proven acquisition system in the world. It works seamlessly to provide the most fully integrated source control/recorder solution!
	Autonomous Operation using Internal Storage
	"Real-Time" status, Command and Control
	"Real-Time" Data and Status Return
	- WiFi – Meshed or standard WiFi
	- Cellular Phone Interface
	- Cabled option
	USB External Storage for Fast Data Collection
	Internal battery
	Internal 3C geophone elements or external Geophone/Hydrophone sensors
	Acquire Active Seismic
	Vibroseis Data
	Fully integrated with SourceLink software. Use SSC UE2 & Force 3 electronics for high production.
	Mesh Radio Network option for real-time status.
	Dynamite Data
	Fully integrated with SourceLink software. Use SSC UE2 & Boom Box 3 electronics for fast acquisition.
	USB data collection for quick data collection.
	Impulsive Data
	Fully integrated with SourceLink software. Use SSC UE2 & RTM 3 electronics for high production.
	Cable-free design for operation in tough environments.
	Acquire Passive Seismic
	Hydraulic Facture Monitoring
	SIGMA 4's real-time Wi-Fi network quickly provides continuous data
	Induced Seismic Monitoring
	Use internal or external sensors to detect the smallest of events
	Long-term Event Monitoring
	SIGMA 4 provides long-term reliability
	MASW and ReMi Data Acquisition
	Easy to deploy, easy to monitor, and easy to collect data and generate output files

Sigma 4 with Internal GPS & MRN

Sigma 4 with External Ethernet

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	Autonomous Mode
	Acquire data with minimal system interaction
	Disciplined GPS provides timing and node locations
	Use USB-Compatible Memory to offload data
	Simply Connect Power and Record Data

	Network Command
	Real-time status and control
	MRN shows GPS, battery, memory, and node information
	Use USB-compatible memory to offload data
	Low-Power Network provides Status from All Nodes

	Wi-Fi Data Return
	Real-time status, control, and seismic data
	High-speed network collects status and data from nodes
	Use standard "off the shelf" network hardware
	Ethernet Downloads Seismic Data as it is Recorded

	Cellular System Operation
	Remote control of seismograph nodes via Internet
	Internet provides status, control, and data upon command
	Use any available cellular vendor
	QC Operating Nodes from Anywhere in the World

Network Configurations


	In the Station to Access Point WiFi Network Topology, the data packets travel from a node to a collection point. The network paths are determined by the operation before acquisition starts. This makes the network extremely fast.

	With the WiFi Mesh Network Topology, the data packets travel from node to node. The nodes determine the optimum path and configure the network. This makes the network extremely robust.

	Hardware Specifications:
	Seismograph Node
	3 channels (4 channels optional)
	32 bit ADC sampling (24 bit stored)
	GPS disciplined clock (internally or externally mounted)
	8 Gbytes internal data storage (expandable to 128GB)
	USB compatible external data collection
	100base-T Ethernet onboard
	Internal 3C - 2 Hz geophones
	Single 26 pin 3C connector (including 12v power) for External sensors (including accelerometers)
	Wi-Fi Data Network
	900 MHz, 2.4 GHz, or 5 GHz license-free communications
	Real Time Seismic Data Return
	Also provides node status and unit control

	Software Specifications:
	Observer
	Observer provides command and control of the SIGMA4 nodes and enables system monitoring before and during acquisition.
	Node Inventory Control
	SEG-P1 & GPX Survey Data Import
	Station Deployment
	Instrument Testing & Report
	Sensor Testing & Report
	Mesh Communications
	Spread Noise Display
	Data Collector
	Data Collector offloads seismic data from the SIGMA4 nodes via network or USB connections.
	Real-Time Collection Status
	Reads in data from USB sticks
	Reads in data from WiFi / Ethernet
	Reads in data from Cell Modems
	Shot Status Reports
	Supports Active & Passive seismic
	Collect Minute’s Worth of Data in Seconds of time
	Harvest
	Harvest reads in the “raw” SEG‑Y data files, spatially aligns them according to their deployment, windows traces in time, and output records.
	Outputs either SEG-D or SEG-Y
	Outputs complete trace headers
	Includes both Vertical and Diversity Stacking of Data Files
	SourceLink
	SourceLink provides complete integration for active operation. Real time control of the Vibrator units, Dynamite units, or other land sources is provided and integrated with the real time receiver layout in the Observer software.

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Expandability and Flexibility

All DAQlink 4 seismographs are compatible with the entire line of Seismic Source Co source control electronics. This includes the Force 3 Vibroseis controller, the Boom Box 3 dynamite synchronizer and the RTM 3 remote trigger module. DAQlink nodes are also compatible with the Universal Encoder 2. Use the UE2 for precise source operation.

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Sigma4 (3 channels) Specifications:

Electrical:

	A/D Converter		24 bit sigma delta (24 bits stored)
	Preamp Gains		x1, x16 (0 dB & 24 dB)
	Max Input (x1 gain)		5.0 Volts (peak to peak)
	Max Input (x16 gain)		313 milliVolts (peak to peak)
	Sample Rates		125, 250, 500, 1k, 2k, 4k SPS
	Bandwidth		DC to 85% Nyquist
	Input Impedance		20k Ohms
	Clock Sync		GPS or VHF/Wire
	Sensor Supported		Passive & Active
			12 V available for external sensors
	3C Internal Sensors		2 Hz (1 vert & 2 horz) (optional)
	Memory (Internal)		8 Gb (standard, can be upgraded)
	Memory (External)		16 Gb (standard, can be upgraded)
	Network (Internal)		Mesh Radio Network (optional)
	Network (External)		100Base-T (Cabled or Wi-Fi)

Performance @ 500sps:

	Dynamic Range		126 dB (x1 gain)
			122 dB (x16 gain)
	Distortion		0.0001% (x1 gain)
			0.0001% (x16 gain)
	Noise		0.8 μV RMS (x1 gain)
			0.09 μV RMS (x16 gain)
	CMRR		< -125 dB (x1 gain)
			< -125 dB (x16 gain)
	Trigger Accuracy		± 1 μs at all sample rates

Physical:

	Case Type		Aluminum
	Size		15.0 in x 5.5 in x 2.3 in (38.1 cm x 140 cm x 5.8 cm)
	Weight		6.9 lbs (3.2 kg)
	Power Requirement		9-28 Volts DC 1.3 Watts
	Internal Battery		11.5 Volts (optional)
			99 Watt/hour (can be shipped)

Downloads:

		Download 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.

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