OPENTECHNICAL PUBLICATION
OT-2026-000000812

Rotation speed determination

Published: 2026-09-15T19:03:26.163746Z
Permanent URL: https://opentechnical.org/p/OT-2026-000000812
Categories: Sensors, Controls & Machine Vision > Industrial Control

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ABSTRACT

Multiple wireless maintenance monitors can be affixed to an industrial machine
and its subcomponents. Each monitor can collect samples from the industrial
machine. For some applications, including failure analysis of parts with
rotating elements, measuring or estimating the rotation speeds of the rotating
elements can be helpful. In many industrial machines having rotating elements
that are mechanically interactive with one another, the rotating elements can
have proportional rotation speeds, governed by relationship functions.
Rotating elements also generate magnetic fields, which can be used to
determine the rotation speeds of the elements. Embodiments include wireless
monitors, equipped with magnetometers to sense the magnetic fields generated
by the rotating elements and estimate rotation speeds of those components.
Additional embodiments include synchronizing sample outputs from the monitors
and using inner-machine relationship functions to determine unknown rotation
speeds of machine subcomponents.

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OpenTechnical publication OT-2026-000000812
Published 2026-09-15T19:03:26.163746Z
https://opentechnical.org/p/OT-2026-000000812