LEMI-011

Product type:
Fluxgate magnetometer

Product description:
The model LEMI-011 is a complete 3 axes flux-gate magnetometer manufactured in two versions: monoblock (“tube” and “box” shape, sensor included) and as a p.c. board and sensor with cable up to 3 m long. Its peculiarity is super-low power consumption – min about 5 mW.

The analog output voltages along each component (relative to “REF” output) are proportional to the measured magnetic field. Also the temperature channel is available, what allows to use this data for both outside temperature measurements and magnetometer thermal drift correction.
Connection to the registration system is realized through standard RC7 connector for the monoblock construction and through 7 long flying leads for p. c. board one.

Application description:
Super-low power 3-components fluxgate magnetometer LEMI-011

Intended for:
Magnetic field components measurements
Fluxgate compass systems (orientation)
Navigation
Magnetic signatures study
Simultaneous magnetic/thermal survey
Traffic control
Residual field measurements

Highlights:
Small

Product image:
LEMI-011
Specifications:

  • Measurement range along each axis 50,000 nT
  • Operation mode | continuous
  • Sensitivity | ( 45 ± 0.5 mV/nT )
  • Bandwidth | (0 … 20 Hz (-3 dB))
  • Output voltage relative to “REF” bus | ( ± 2.25 V, max )
  • Reference output “REF” voltage to supply ground | ~ 2.5 V (half of supply voltage)
  • Noise level at frequency 5 Hz | (0.1 ё 0.2 nT/ЦHz)
  • Orthogonality error of sensor axes, max | ± 2°
  • Error of orthogonality determination (calibrated, optional) | ± 20 min of arc
  • Transfer factor error | (<0,5%)
  • Zero offset at t=20° C | (< 750nT)
  • Zero drift over temperature | ( < 5 nT/°C)
  • Power supply voltage | (5 ± 0.25 ) V
  • Maximal consumed current | 2.5 ё 5.5 mA (in dependence on noise level)
  • Guaranteed operation temperature range | (-40…+80°C)

Overall dimensions and weight, max

  • Sensor | ( 50x16x16 mm, 20 g)
  • Electronic unit | ( 55 x 50 x 7 mm, 45 g)
  • Monoblock of “tube” form | (III27 x 241mm, 120 g)
  • Monoblock of “box” form | ( 115 x 60 x 27mm, 120 g)