Lviv Centre of Institute of Space Research

Home Up Feedback Contents Search

 

horizontal rule

INDUCTION MAGNETOMETER
FOR GEOPHYSICAL APPLICATIONS LEMI-121

Main features

bullet Super-wide frequency range: 0.0001 - 500 Hz
bullet Very low noise
bullet Low power consumption

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

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)
Current consumption 14 mA
Weight 4 kg
Dimensions:
                  diameter
                  length

85 mm
560 mm

* f is the frequency of the received signal

horizontal rule


Last modified: 06-04-2010

Copyright ISR '2001-2010 TOP HOME