Speed measurements – Rockwell Automation 1442 Eddy Current Probe System User Manual
Page 16
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16
Rockwell Automation Publication ICM-UM004C-EN-E - February 2014
Chapter 1
Installation
The characteristics of output (V) and gap (mm) are as shown in the graph below.
Speed Measurements
Assumes measurements are made with a 5 mm or 8 mm probe.
Figure 2 - Dimension of target (recommended for rotational speed measurement):
mm
mils
Recommended dimension of
target (mm)
A
≥ 6
A
≥ 236
B
≥ 7
B
≥ 275
C
≥ 2.5
C
≥ 98
D
≥ 15
D
≥ 590
Recommended set gap (mm)
1.0...1.5
39...59
D
A
B
C
D
D
A
C
B
C
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