TOTEM-2A VLF System

TOTEM-2A VLF System

TOTEM-2A VLF System

New-Sense Geophysics can also deploy the RMS Instruments TOTEM-2A Very Low Frequency (VLF) system in its magnetic and/or radiometric, helicopter or fixed-wing surveys. Designed to receive magnetic fields emanating from VLF transmitters worldwide, operating in the 15 to 25 kHz frequency range, the TOTEM-2A is a game-changer in exploring subsurface structures.

Key Features of RMS Instruments TOTEM-2A VLF System:

  1. Global VLF Transmitter Reception: The TOTEM-2A is engineered to capture magnetic components from VLF transmitters strategically positioned across the globe. These transmitters, used for navigation and communication with submarines, provide valuable insights into subsurface features.
  2. Multi-Parameter Measurements: The system measures the change in total field, vertical quadrature component, and the total field gradient using dual sensors. The recording of the quadrature polarity sign adds an extra layer of information, enhancing the comprehensiveness of the gathered data.
  3. Advanced Sensor Technology: The TOTEM-2A system incorporates a sensor with three mutually orthogonal ferrite-cored coils and a preamplifier. This assembly is seamlessly integrated into the fixed-wing tail or helicopter stinger, ensuring optimal positioning for precise data acquisition.
  4. State-of-the-Art Digital Circuitry: Leveraging state-of-the-art digital and linear integrated circuits, the TOTEM-2A implements crystal-controlled phase-locked loop frequency synthesizers and dual-frequency heterodyne conversion. These technological advancements contribute to the system’s accuracy and reliability.
  5. Simultaneous Dual Frequency Operation: Simultaneous operation at dual frequencies allows the selection of transmitters for optimal coupling with conductors of any orientation. This flexibility is a key asset, ensuring effective exploration in diverse geological settings.
  6. Enhanced Gradient Mode Measurements: The TOTEM-2A’s gradient mode measurements go beyond total field data, enhancing interline contouring and delineation of multiple conductors. This capability provides a more detailed understanding of subsurface structures.
  7. Ideal Complement to Airborne Surveys: The TOTEM-2A VLF system seamlessly integrates with airborne magnetic and radiometric surveys. Its simplicity, compact size, and ease of operation make it an ideal add-on, expanding the capabilities of airborne geophysical exploration.
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