CMG-3TOBS
CMG-3TOBS.
The CMG-3TOBS system uses the latest CMG-3T weak motion sensor technology in a robust ocean bottom installation. The three-footed sensor package shown is designed to sink into a sandy sea floor, affording excellent coupling to ground movements with little interference from water motion. Digitizer and communications electronics is housed in a separate unit which floats above the sensor package.
A typical 3TOBS installation package.
Features
- Low power consumption
- Automatic tilt compensation
- Integrated 24-bit high dynamic range digitizer
- High stability clock
- Long duration, low power recording medium
Optionally, you can communicate with the ocean bottom sensor directly over a serial interface, or optical interface for high bandwidth data transfer. Manufactured ocean bottom systems can be fitted with serial, optical or low power long range modem interfaces. An optional TCP/IP interface allows OBS systems to be easily integrated into existing and projected networks.
When a stand-alone instrument platform reaches the end of its task, sending an acoustic signal to a hydrophone within the communications unit activates the release unit and allows the whole to float to the surface. The on-board GPS continuously broadcasts the location of the platform, making recovery simple.
Güralp Systems provide release units and other accessories for OBS systems.
Featured articles
 | First Spanish OBS installed off CatalunyaAugust 2005A CMG-OBS3T sensor has been successfully deployed by scientists from the Institut Cartogràfic de Catalunya and Güralp Systems. |