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The quality of the data collected in aeromagnetic surveys is largely dependent on the quality of compensation. In the absence of good compensation, the anomaly signals detected by high- sensitivity modern magnetometers can be completely masked out by the interference of the nearby magnetics of the aircraft.
The aircraft's magnetic interference is related to its motions about its principal axes. A mathematical model may be built to accurately represent the aircraft's magnetic signature. Careful optimization and implementation of this model, within the framework of sophisticated hardware and firmware technologies, can lead to real-time compensation that effectively eliminates the aircraft's magnetic interference.
The RMS Instruments' family of Adaptive Aeromagnetic Real-Time Compensators provide real-time compensation of local magnetic interference from the aircraft, to the point where the full resolution of modern high-sensitivity magnetometers can be utilized. The various models available have been designed for optimal support of a broad range of applications.
Conventional, fixed-wing and helicopter platforms
The DAARC500 offers the ultimate in real-time aeromagnetic compensation combined with comprehensive and flexible data acquisition and recording. It supports up to 8 high-sensitivity magnetometer inputs and virtually any ancillary instrumentation used in geophysical and environmental survey applications.
The AARC500 focuses on the real-time aeromagnetics and compensation, for up to 8 high-sensitivity magnetometer inputs. It includes also basic general-purpose data acquisition capabilities.
The AARC510 has a compact and light form factor, suitable for strap-down installation. It supports real-time magnetics and compensation for up to 4 high-sensitivity magnetometer inputs, and provides limited general-purpose data acquisition functionality.
Unmanned Aerial Vehicle (UAV) platforms
The AARC51 and AARC52 have been designed for installation in UAV platforms. While very compact (133 x 133 x 216 mm) and light (< 2 Kg), they offer the same level of performance for real-time magnetics and compensation as other members of the family. They support one (AARC51) or two (AARC52) high-sensitivity magnetometer inputs, and require less than 3.5 A at +28 VDC, including the sensors. Basic general-purpose data acquisition is also included. While specifically targeted to UAV applications, the AARC51/52 are also perfectly suited for conventional fixed-wing or helicopter platforms.
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| DAARC500 Data Acquisition & Adaptive Aeromagnetic Real-Time Compensator |
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| 2nd-Generation DAARC500 |
- Magnetometer interface for up to 8 high-sensitivity sensors (Cs, He or K)
- User-selectable front-end sampling rates, up to 1280 Hz
- Magnetometer processor: 0.32 pT resolution, < 0.1 pT internal system noise
- Real-time compensation of up to 8 total fields and various gradients
- Proven, extremely robust compensation algorithms (AADCII legacy)
- Adaptive signal processing techniques – improved compensation and simplified calibration procedures
- User may customize Front End processing to specific installation requirements
- Raw and compensated data output & recording: up to 80 Hz
- NEW: Post-flight compensation and calibration analysis functions
- NEW: Dynamic compensation of on-board electronic systems
- NEW: Gating of magnetometer readings for concurrent use with EM systems
- Comprehensive, flexible data acquisition
- Embedded GPS receiver option (single-, dual- or triple frequency)
- Eight isolated RS232 serial ports (115.2 kbps), two Ethernet (10/100/1000 Mbps)
- Flexible ASCII, binary and raw serial data formats, with large buffers (> 64 KB/port)
- 16 differential/32 single-ended analog inputs, 16-bit resolution
- Serial/analog/Ethernet data synchronized to magnetics, with time & event tags
- Flexible and simple user interface via built-in TFT LCD and external display
- Full monitoring/control from any Windows device (via Ethernet, or through the Internet)
- Real-time graphical output to built-in display, external display and chart recorder
- Embedded Flash memory, internal hard disk, USB-based Flash disk
- Real-time operating system (RTOS): QNX 6.5 (or greater)
- State-of-the-art HW & FW architecture based on advanced 64/32-bit processors
- Compact form-factor: 19”-rack mountable, 5.25” height, 19 lb.
DAARC500 Data Acquisition/Adaptive Aeromagnetic Real-Time Compensator - data sheet and specifications  |
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| AARC510 ADAPTIVE AEROMAGNETIC REAL-TIME COMPENSATOR |
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SMALL, LOW-COST, STRAP-DOWN PACKAGE
- Magnetometer interface for up to 4 high-sensitivity sensors (Cs, He or K)
- User-selectable front-end sampling rates, up to 1280 Hz
- Magnetometer processor: 0.32 pT resolution, < 0.1 pT internal system noise
- Real-time compensation of up to 4 total fields and 3 gradients
- Proven, extremely robust compensation algorithms (AADCII legacy)
- Adaptive signal processing techniques – improved compensation and simplified calibration procedures
- User may customize Front End processing to specific installation requirements
- Embedded GPS receiver option (single-, dual- or triple frequency)
- NEW: Post-flight compensation and calibration analysis functions
- NEW: Dynamic compensation of on-board electronic systems
- NEW: Gating of magnetometer readings for concurrent use with EM systems
- Raw and compensated data output & recording: up to 80 Hz
- Real-time graphical output and user interface on any external display
- Four analog inputs for radar/laser altimeter, barometric pressure sensor, etc.
- Data acquisition via Ethernet
- Full monitoring/control from any Windows device (via Ethernet, or through the Internet)
- Features targeted to UAV applications
- Real-time operating system (RTOS): QNX 6.5 (or greater)
- State-of-the-art HW & FW architecture based on advanced 64/32-bit processors
- Compact and lightweight: 5.25” x 8.5” x 12”, under 10 lb
AARC510 Aeromagnetic Real-Time Compensator - data sheet and specifications |
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| AARC51,52 ADAPTIVE AEROMAGNETIC REAL-TIME COMPENSATION FOR UAVs |
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DESIGNED FOR UAV PLATFORMS: < 5.25 x 5.25 x 8.5 in, < 4.4 lb
- Magnetometer interface and real-time compensation for one or two high-sensitivity sensors (Cs)
- User-selectable front-end sampling rates, up to 1280 Hz
- Magnetometer processor: 0.32 pT resolution, < 0.1 pT internal system noise
- Proven, extremely robust compensation algorithms (AADCII legacy)
- Adaptive signal processing techniques – improved compensation and simplified calibration procedures
- User may customize Front End processing to specific installation requirements
- Interface for external GPS receiver; embedded (dual-frequency) receiver (AARC52)
- Raw and compensated data output & recording: up to 160 Hz
- Post-flight compensation and calibration analysis functions
- Dynamic compensation of on-board electronic systems
- Real-time graphical output and user interface on any external display
- Two analog inputs for radar/laser altimeter, etc.
- Embedded barometric pressure and temperature sensors
- Data acquisition via Ethernet
- Full monitoring/control from any Windows device (via Ethernet, or through the Internet)
- Features targeted to UAV applications
- State-of-the-art HW & FW architecture based on advanced 64/32-bit processors
- Real-time operating system (RTOS): QNX 6.5 (or greater)
- +28 VDC; 3 A (AARC51), 3.5 A (AARC52)
AARC51 Adaptive Aeromagnetic Real-Time Compensation for UAVs - data sheet
AARC52 Adaptive Aeromagnetic Real-Time Compensation for UAVs - data sheet |
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| AARC500 Adaptive Aeromagnetic Real-Time Compensator |
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| 2nd-Generation AARC500 |
- Magnetometer interface for up to 8 high-sensitivity sensors (Cs, He or K)
- User-selectable front-end sampling rates, up to 1280 Hz
- Magnetometer processor: 0.32 pT resolution, < 0.1 pT internal system noise
- Real-time compensation of up to 8 total fields and various gradients
- Proven, extremely robust compensation algorithms (AADCII legacy)
- Adaptive signal processing techniques – improved compensation and simplified calibration procedures
- User may customize Front End processing to specific installation requirements
- Embedded GPS receiver option (single-, dual- or triple frequency)
- NEW: Post-flight compensation and calibration analysis functions
- NEW: Dynamic compensation of on-board electronic systems
- NEW: Gating of magnetometer readings for concurrent use with EM systems
- Raw and compensated data output & recording: up to 80 Hz
- Real-time graphical output to built-in display, external display and chart recorder
- Flexible and simple user interface via built-in TFT LCD and external display
- Full monitoring/control from any Windows device (via Ethernet, or through the Internet)
- Real-time operating system (RTOS): QNX 6.5 (or greater)
- State-of-the-art HW & FW architecture based on advanced 64/32-bit processors
- Compact form-factor: 19”-rack mountable, 5.25” height, 18 lb.
AARC500 Aeromagnetic Real-Time Compensator - data sheet and specifications |
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