Fluxgate Magnetometer

The Fluxgate Magnetometer is a very compact hand-held instrument which has been
designed for accurate measurements of weak magnetic fields from 0.1 nT (nanotesla) to 200 AuT.

Specifications
Range switch A 2 AuT, A 20 AuT, A 200 AuT
Highest resolution 0.1 nT
Accuracy at 20 a C 0.5 % A 5 nT A 1 Digit
Temperature range 0 to 50 a C
Zero drift <0.1 nT/K
Analog output 0.01 V/AuT, 0.1 V/AuT, 1 V/AuT dep. on
pos. of range switch, BNC-socket
Bandwidth 0 to 1 kHz (a 3 dB)
Noise <0.7 nT RMS (0.1 Hz < f < 200 Hz),
typ. 20 pT/a
Hz at f = 1 Hz
Battery 9 V (PP3, Alkaline)
Continuous operation with one battery a 20 h
Automatic neutralization A 60 AuT, selectable
Size of electronics unit 151 mm A 82 mm A 33 mm
Protection IP65
Size of sensor diam. 10 mm A 30 mm
Length of connecting cable 1.5 m
Weight of complete device 380 g


Applications

a c Measurement of the Eartha s field vector components
a c Monitoring stray magnetic fields near power cables, transformers, etc.
a c Palaeomagnetic investigations: Measurement of weak fields in rocks
a c Calibration of Helmholtz coils
a c Package inspection
a c Residual field measurements (shielding effectiveness)
a c Magnetic field control and compensation via analog output

Features

a c Resolution 0.1 nT
a c Three full scale ranges: A 2 AuT, A 20 AuT und A 200 AuT
a c Accuracy 0.5 %
a c Offset <5 nT
a c 4 1/2 digit LC-display
a c Analog output for strip chart recorder, oscilloscope, etc.
a c Waterproof case (protection IP65)
a c Selectable automatic ambient field cancelling A 60 AuT