Torque Measurement; Dual Vr Sensor Torque Measurement - Ametek DN VR-608 Series User Manual

2.1.2 Torque
Measurement
© Copyright 2024
United Electronic Industries, Inc.
Torque measurements require two toothed wheels on the same shaft: one
toothed wheel is under torque and the other wheel is under zero torque. As the
shaft twists under torque, the two wheels become slightly misaligned. The VR
interface indirectly measures the degree offset by counting the time between
when a tooth on the leading wheel passes the sensor and when a tooth on the
lagging wheel passes the sensor. The torque pulse signal is shown in
Figure 2-4. This offset can be converted to torque from the shaft specification
(see Section 2.2.4.2).
VR
1
VR
2
Torque
Pulse
Δt
Figure 2-4 Dual VR Sensor Torque Measurement
February 2024
DNx-VR-608 Variable Reluctance Interface
Δt
VR
2
VR
1
Chapter 2
Functional Description
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