1 / 1

Position Verification

Calibration of High-Resolution Surface Tachometers. Team Members: Matt Hagon Michael Lee Jennifer Egolf Christopher Pawson. Sponsors: Jose Vazquez, Ted Myrick, Patrick Buehler ; Advisor: James Glancey. Proof of Concept. Project Goals. Final Concept.

zinna
Télécharger la présentation

Position Verification

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Calibration of High-Resolution Surface Tachometers Team Members: Matt Hagon Michael Lee Jennifer Egolf Christopher Pawson Sponsors: Jose Vazquez, Ted Myrick, Patrick Buehler; Advisor: James Glancey Proof of Concept Project Goals Final Concept • Tachometers mounted to make contact with disc • Disc rotated using a motor and gearbox • Multiple tachometers calibrated simultaneously to surface velocity of disc • Motor speed selected through user interface • Design and manufacture a portable device for the relative calibration of multiple surface tachometers. • Eccentricity Testing • Wheel and shaft rotated on v-blocks • Radius variation measured with dial gage • Confirmed radius variation will not cause speed variations above design specifications Disc Project Background • Position Verification • Properly calibrated tachometers can detect small differences in surface velocity across a system. • Used as diagnostic tool to reduce the downtime of systems. • Currently a lathe used for calibration. • Problems: • Cannot calibrate tachometers relative to each other • Not portable Tachometers Motor • Position Testing • Tachometers of various sizes positioned on disc and shaft assembly • Confirmed that 4 tachometers of all sizes can be mounted simultaneously Tachometers Tachometers Prototype Ranked Customer Wants Tachometer Motor • Complete System Test • Method: • Mount surface tachometer on rotating disc • Note speed variation in system Tachometer speed variation without gearbox (just motor effect): Tachometer speed variation with gearbox: Top 5 Design Specifications Speed Amplitude Speed Amplitude Shaft and disc assembly Motor connects to controller with user interface Gearbox Switch for speed selection Speed Frequency Speed Frequency • Large speed variations • Insignificant variations in speed Conclusion • Use of current gearbox creates unacceptable speed variations • Modifications to system • Eliminate gearbox for direct drive system • Tachometers mounted directly to extended shaft Power supply Drive

More Related