This marker can then be detected by a magnetic probe
during the operation and will guide the surgeon to the tumour reliably and precisely during a breast lumpectomy for impalpable breast cancer.
A magnetic probe
detects the Magseed, guiding the surgeon to the tumor with precision.
They use the Hall effect, which measures precisely the distance between a magnetic probe
and a target ball.
Figure 5 shows the voltage measured at the terminals of the magnetic probe
at a height equal to 5 mm at a point which is located above the MOSFET.
If the cable can't be relocated, then a good practice is to shield both the receiver and emitters as described and measure the interference with a magnetic probe
A downhole magnetic probe
survey has been carried out to identify any stronger potential magnetic sources off hole.
Such equipment allows to map a magnetic field at any point, over any surface moving a 3-axis magnetic probe
through a three dimensional volume while measuring the three orthogonal components of magnetic field at designated points and magnetic field profile can be plotted.
Measurements are made using an IEC-61967 magnetic probe
feed into a standard spectrum analyzer.
The 'Compact Scanner 4EM200' measures electronic field of high-frequency electric current by scanning LSI and modules with a magnetic probe
. The noise measurement is analyzed with a spectrum analyzer and then displayed in color on a PC monitor.
A direct measurement of the bubble thickness was performed using a magnetic probe
in order to validate rheometer results.
Moreover, the new magnetic probe
microscope measures the strength of magnetic fields directly.
As can be seen in Figure 3, the magnetic probe
utilized is a metallic loop with two-spires.