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??? Propeller Thrust, Torque & RPM

Case Study – Application of Sensors in measuring torque and thrust produced by propellers in small unmanned quad-rotor helicopter. ??? Propeller Thrust, Torque & RPM. Torque (N-m). Thrust (N) / Lift force by propeller. Force Applied. Spring Const. Spring Elongation. F.

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??? Propeller Thrust, Torque & RPM

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  1. Case Study – Application of Sensorsin measuring torque and thrust produced by propellers in small unmanned quad-rotor helicopter

  2. ???Propeller Thrust, Torque & RPM Torque (N-m) Thrust (N) / Lift force by propeller

  3. Force Applied Spring Const. Spring Elongation F

  4. How to get this force in terms of electrical Signal / voltage ???

  5. Resistance Property of material Length of wire Effective cross sectional area of wire Tension Strain Gauge Compression =>

  6. Wheatstone Bridge

  7. Wheatstone Bridge (3) (3) (3) (3)

  8. Wheatstone Bridge (4) (2) (2) (4)

  9. Full Bridge Strain Gauge R R R R

  10. Tension Compression No Force Applied R R R R

  11. Bending Beam Load Cell Strain Gauge Strain Gauge

  12. Bending Beam Load Cell Strain Gauge In Tension Strain Gaugein compression

  13. Measuring Thrust & Torque

  14. Measuring Thrust & Torque Torque Thrust

  15. Measuring RPM Light Sensitive Sensor LED

  16. Calibration of Sensors

  17. Calibration of Sensors

  18. Propeller Characteristics

  19. Propeller DynamometerDemo

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