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INDUCTION MAGNETOMETER
FOR
GEOPHYSICAL APPLICATIONS LEMI-121
Induction coil magnetometer
LEMI-121 is intended for the study of magnetic field fluctuations in the
frequency band 0.0001-500 Hz in land conditions. It can be used both
autonomously with any analog registration unit and as a part of any
geophysical equipment, e.g., magnetotelluric station. Extremely high
sensitivity ensures excellent signal-to-noise ratio for exact measurements.
Low power consumption and
wide frequency range allow long term measurements at remote sites.
Strengthened rugged housing and output connector prolong sensor active
lifetime and increase overall reliability.
MAIN
TECHNICAL PARAMETERS
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Frequency range |
0.0001 – 500 Hz |
Transformation
factor:
at frequencies 0.0001 – 1 Hz
1 – 500 Hz |
200 mV/nT f *
200 mV/nT |
Noise:
at 0.001 Hz
at 0.1 Hz
at 100 Hz |
< 600 pT/sqrt(Hz)
< 5 pT/sqrt(Hz)
< 0.05 pT/sqrt(Hz) |
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Current consumption |
± 14 mA
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Weight |
4 kg |
Dimensions:
diameter
length |
85 mm
560 mm |
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* –
f is the frequency of the received signal
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