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Team Bi-Directional

Team Bi-Directional. Keith Beland Christian Brinegar Justin Marsha. Problem Statement.

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Team Bi-Directional

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  1. Team Bi-Directional Keith Beland Christian Brinegar Justin Marsha

  2. Problem Statement Our problem statement is to create a device that can be used to test the linearity, centering, and dead band of an NRG systems #200P Wind Direction Vane that samples at most every .9 degrees within 2 minutes.

  3. Our Solution • For our final design we chose a solution using a parallel stepper motor while incorporating LabView for displaying and handling of the data.

  4. Background • Dead band • Linearity • Centering

  5. Electrical System DAQ .9 Degree/ 400 step Stepper Motor PC 5V Position Sensor Wind vane

  6. Drive System Belt Driven Design 1:1 Ratio Low torque Needle Cage Thrust Bearing

  7. Windvane Bucket ½” Post “Bucket” Fixed in place to ½” post to hold windvane in place on final product

  8. Belt/Bearing Drive Assembly Stepper Motor Pulley O.D. = 3.75” I.D. = .200” Wind Vane Pulley Bearing is seated with .05” Tolerance. O.D. = 3.75” I.D. = 2.000”

  9. Needle Cage Thrust Bearing

  10. Stepper motor (from Anaheim Automation) The inputs are capable of running from either open collector or TTL level logic outputs. The micro stepping driver features resolutions from 200 - 1600 steps/revolution, providing smooth rotary operation. Input voltage from 8-35 VDC. Step angle of 1.8° with an accuracy of +/- 5%

  11. Stepper Motor Controller

  12. Work Breadown

  13. Project Overview

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