Pec Probe Footprint
The footprint (FP) of a probe is used to determine the best grid resolution for proper detection. FP is defined as the full width at half maximum (FWHM) of the response detected by the probe. With this a 50% signal overlap is used between each point on the grid map.
Calculating the Pec Probe Footprint
The table below shows the PEC Probe footprint of probes PEC-025, PEC-089 and PE-152 versus insulation thickness. For example, a 1.5” insulated pipe will have a 3.42” footprint when using PEC-089 probe.