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In-Situ Sensors and Measurement for Tribological Contacts

The measurement of load, torque, temperature, speed, and displacement is common in many kinds of machines. However, most of these sensors capture data about the machine or individual components at a macro-scale. In tribology the important interactions, and the ones that really need sensing, occur at the micro-scale of contacts. For example, the actual flash temperature on a gear tooth, the contact pressure in a rolling bearing, asperity contact in tilting pad, or the film thickness in a seal. Sensing these parameters in-situ in a tribo-contact is challenging. There are several physical phenomena we can use; electrical resistance and capacitance, optical interference and fluorescence/absorption, and acoustic transmission/reflection. This talk covers some designs of sensors based on these physical principles and what researchers have been able to measure with them. The talk includes the author’s own specialist area ultrasonic reflection and a case study on a wind turbine bearing. You can keep up with the latest Surface Ventures events on: – Our website: surfaceventures.org. Subscribe to our mailing list to get the latest on our webinars and workshops. – LinkedIn:   / surface-ventures   – Facebook:   / surface.ventures.education   – View our previous newsletters:   / modern-surface-6912194051538612224   – Subscribe to receive our newsletters via email: https://surfaceventures.org/mosu/