Field Analyzer NARDA EFA200::
Description
![]() NARDA EFA200
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Isotropic magnetic field probe 100cm²::
Description
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The isotropic magnetic field sensor with 100 cm² coil surface can be plugged into the NARDA EFA200 and is characterized by a high level of sensitivity. The probe is used depending on the application and standard, for the measurement of inhomogeneous magnetic fields.
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Spectramag-6::
Description
![]() Spectramag-6, Bartington
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This portable 6-channel 24-bit data acquisition unit is used for the simultaneous three-dimensional registration and analysis of the magnetic field, vibrations and acoustic data.
Typical applications:
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Example measurements for electron microscope
Measurements of the electromagnetic field strength at the location of an electron microscope. With measurements it could be demonstrated, that the field strengths of the environment field are over the interference limit of the microscope.
For comparison, the measurement was performed with switched off (lower charts, Input 2) and with switched on (top charts, Input 1) compensation. In the lower diagram on the right, the interference frequencies with dominant 50Hz and 3., 5., 7. and 9. harmonious are well visible. In the top charts, with turned on compensation, it can be well documented, that the field strengths are reduced to non-critical values.