Pular para o conteúdo principal

FGA Logger

FGA Logger Magnetometer Data Logger

The FGA Logger is a high-precision fluxgate magnetometer data logger designed for geophysical surveys, environmental monitoring, and drone-based magnetic mapping.

The device records magnetic field data from 3-axis fluxgate magnetometer sensors and combines it with GPS positioning data for precise mapping and analysis.

The logger supports real-time data streaming, SD-card storage, and integration with external systems through USB and UART serial interfaces.

Key Features​

  • Dual magnetometer support — connect up to two 3-axis fluxgate magnetometers for multi-point magnetic field measurements
  • Integrated high-sensitivity GPS — provides accurate geolocation data for each recorded measurement
  • High-speed data logging — records magnetic and GPS data at up to 10 Hz
  • Flexible data storage — removable SD card storage for large datasets
  • Real-time data streaming — data output through UART or USB serial interface
  • USB-C connectivity — fast access to recorded data on the SD card
  • User-friendly operation — start/stop button with LED indicators
  • Factory calibrated — ensures accurate and consistent measurements
  • Software compatibility — works with Excel, Matlab, Python, Surfer, and the PolarWave™ DATA app

Package Contents​

Each FGA Logger package includes:

  • FGA Data Logger unit
  • GPS antenna
  • USB-C data / power cable
  • DB9 connector for UART and power
  • SD card (32 GB)

Technical Specifications​

ParameterValue
Number of Sensor Channels2
Sensor Input Range0 – 3 V differential
ADC Resolution24-bit
ADC Sampling2 kSPS dual ADC
Data Logging RateUp to 10 Hz
Sensor Input Bandwidth36 Hz
Data StorageSD card (8 – 32 GB, FAT32)
Data FormatCSV
Serial InterfaceUART / USB
Serial Protocol230400 baud, 8N1
Power Supply (USB-C)5 V ±0.25 V
Power Supply (DB9)6 – 35 V
Operating Temperature−20 °C to +60 °C
Storage Temperature−40 °C to +85 °C

GPS Specifications​

ParameterValue
Satellite SystemsGPS, GLONASS, Galileo, BeiDou, QZSS
Frequency BandsL1 / L5
Timing Accuracy< 30 ns
GPS Data RateUp to 10 Hz
Sensitivity−167 dBm
Antenna ConnectorSMA

Device Interfaces​

Front Panel​

  • Start / Stop Button — starts or stops the data logging process
  • Status LEDs — indicators for GPS lock, Bluetooth status, and data logging status
  • USB-C Port — serial communication with a PC, accessing SD card contents, and powering the device

Rear Panel​

  • Sensor Inputs (Channels 1 & 2) — connect up to two external magnetometer sensors
  • UART Output (DB9 Connector) — provides serial communication and optional power input
  • GPS Antenna Connector (SMA) — connects the external GPS antenna

Data Format​

Logged data is stored as CSV files on the SD card.

This format allows easy import into:

  • Excel
  • Matlab
  • Python
  • Surfer
  • GIS software
  • PolarWave™ DATA analysis platform

Typical Applications​

Geophysical Surveys​

  • magnetic anomaly detection
  • geological exploration
  • underground structure detection

Environmental Monitoring​

  • Earth magnetic field measurements
  • geomagnetic monitoring stations
  • space weather observation

Drone Magnetometry​

  • UAV-based magnetic surveys
  • aerial magnetic mapping
  • mineral exploration

Scientific Research​

  • laboratory experiments
  • magnetic field instrumentation
  • materials testing

Industrial Applications​

  • magnetic shielding analysis
  • material inspection
  • infrastructure monitoring

Integration​

The FGA Logger can be integrated with:

  • 3-axis fluxgate magnetometers
  • UAV survey systems
  • telemetry systems
  • embedded computers
  • field survey platforms

The device operates in two modes:

Data Logging Mode:

Sensor → FGA Logger → SD Card

Real-Time Streaming Mode:

Sensor → FGA Logger → UART / USB → Computer or Telemetry

Software Integration​

FGA Logger data is compatible with:

  • Excel
  • Matlab
  • Python
  • Surfer
  • GIS tools
  • PolarWave™ DATA platform

The PolarWave™ DATA app allows direct upload and visualization of recorded magnetic data.

  • FG-4 Sensor — 3-axis fluxgate magnetometer
  • FG-3+ Sensor — 1-axis fluxgate magnetometer
  • FG-3C Sensor — calibrated 1-axis fluxgate magnetometer
  • MAG-BOARD — magnetometer processing board
  • DIY Gradiometer Kit — complete magnetic survey system