RBRquartz³ APT

The RBRquartz³ APT (Accelerometer, Pressure, Temperature) combines a triaxial quartz accelerometer with the Paroscientific Digiquartz® pressure sensor, building on the capabilities of the RBR bottom pressure recorders.

The instrument is designed for rapid ROV deployment, and penetrates the seabed to ensure good seismic coupling and insulation from potential noise sources. The RBRquartz³ APT supports both autonomous installation and realtime data streaming to cabled observatories. The sub-second integration time consumes less power during sampling, significantly extending the time until the next battery replacement.

The RBRquartz³ APT is ideal for ocean bottom earthquake and tsunami early detection and monitoring.

Key features of the RBRquartz³ APT are:

  • Long deployments

  • High accuracy

  • Quartz stability

  • 10ppb pressure resolution

  • 16Hz strong- and weak-motion accelerometer

  • TCP/IP socket over Ethernet1

1 Available upon request.

For a detailed description of bottom pressure recording using the RBRquartz³ APT, refer to the Ruskin User Guide: Standard Instruments3.

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Fig. 1.    RBRquartz³ APT