Atec Geometrics-G-882TVG User Manual download pdf

G-882TVG CESIUM MAGNETOMETER

& TRANSVERSE GRADIOMETER

•

Marine Search Applications for UXO, pipelines, lost

objects with Multi-Sensor Array Capability

• High Sensitivity ─ 0.004 nT/sq-rt-Hz RMS with dual

CM−221 Larmor Counters

• Very Low Heading Error ─ ±0.25nT over 360˚

equatorial and polar spins

• Versatility ─ CM-221 counter includes 8 channel 12

bit A to D converters for real time internal

diagnostics, digital data stream concatenation,

and short, long or telemetry over coax options

• Reliability and Ruggedness – Cesium

magnetometers never need be returned to factory

for calibration or tuning. Designed for tough

environmental conditions and high “G” loads

• Gradiometer arrays offering simultaneous operation of up to 8 separate sensors using the

designed-in multi-sensor data concatenation of the CM-221 internal counter

• Geometrics offers complete turnkey systems including tow cables, gradiometer wing, digital data

acquisition systems with real time anomaly detection, GPS navigation and post acquisition data

processing software and training.

The Geometrics Model G-882TVG Transverse

Gradiometer system mates the well- proven high-

performance cesium sensor with dual high

sensitivity and high speed CM-221 Larmor

Counters. This advanced integrated

magnetometer system provides unmatched

versatility in performance, with a wide sensor

separation for maximum target detection efficiency

and survey cost effectiveness.

The system comprises a transverse wing and two

G-882 Cesium Vapor magnetometer fish with

stabilizer weights and fins. Tow cables may be up

to 150m in length with standard power supply or

up to 700m with a high capacity voltage sense

supply. Depth sensors provide gradiometer

attitude and depth information to the operator

depth and an echo-sounder altimeter provides

height above sea floor for proper system flight

control.

Dual sensors are synchronized to 1ms sampling

and data is transmitted via RS-232 for recording by

any standard PC computer using our industry

standard MagLogLite software. High sample and

data transmission rates (up to 40 samples per

second) are standard.

The G-882G provides sensitivities of 0.004 nT/√Hz

RMS or approximately 0.01 nT P−P at 10 Hz,

selectable via software command for detection of

the smallest anomalies. MagLog software

computes the transverse difference for display and

analysis in real time, using the customer supplied

GPS for interpolation and target positioning.

The system's high performance is excellent for the

detection and delineation of cables, pipelines,

environmental, archaeological or military UXO and

EOD targets.

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Summary of Contents

Page 1 - & TRANSVERSE GRADIOMETER

G-882TVG CESIUM MAGNETOMETER & TRANSVERSE GRADIOMETER • Marine Search Applications for UXO, pipelines, lost

Page 2

Software Geometrics supplies MagMap2000 and MagPick with each system for analysis and interpretation of total field and

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Atec Geometrics-G-882TVG User Manual

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