Eddy-Current Sensors
Probes and Ranges
ECA110 Eddy-Current Sensor: Probes and Ranges
Probe model numbers are specified by their diameter and body style: i.e. a U8C probe has an 8mm diameter and a "C" body style.
Probe diameter determines the range.
Larger Diameter = Larger Range
See the probe page for mechanical details, important mounting clearances, and temperature limits.
Probes can be ordered as vacuum compatible.
Ranges
Specifications assume a target at least 3 times the diameter of the probe.
A specific range will require a particular probe size/model.
Custom ranges are always available.
Terms
Range Chart
Range mm |
Near Gap mm |
ProbeModel (Probe Diam.) |
Output Linearity Chart |
| 0.50 0.020 |
0.05 0.002 |
U3 (3mm) | U3 Chart |
| 1.25 0.050 |
0.25 0.010 |
U5 (5mm) | U5 Chart |
| 2.00 0.080 |
0.35 0.015 |
U8 (8mm) | U8 Chart |
| 3.50 0.140 |
0.60 0.025 |
U12 (12mm) | U12 Chart |
| 5.00 0.200 |
0.75 0.030 |
U18 (18mm) | U18 Chart |
| 8.00 0.320 |
1.25 0.050 |
U25 (25mm) | U25 Chart |
| 12.5 0.500 |
1.50 0.060 |
U38 (38mm) | U38 Chart |
| 15.0 0.600 |
2.00 0.080 |
U50 (50mm) | U50 Chart |
