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3-Axis and 6-Axis
Introduction & Primer
Keith Skidmore
June 24, 2015
• Single Axis
• 2-Axis –Axial Torsion (Fz, Mz)
• 3-Axis – Fx, Fy, Fz
• 6-Axis – Fx, Fy, Fz, Mx, My, Mz
• 3-Axis Applicatio...
• What it measures: Any single Force or Torque
• Benefits: Highest accuracy
• Limitations: Only measures one axis
Fz
Singl...
• What it measures: Any two Forces or Torques
simultaneously
• Benefits: Off-the-shelf, high accuracy sensors
• Limitation...
• What it measures: Fz and Mz in one sensor
• Benefits: Compact design
• Limitations: Fixed ratios of Force to Torque
Fz
M...
• What it measures: Forces in all 3 Axis
– Fx, Fy & Fz
• Benefits: Compact design
• Limitations: Fixed
capacities in each ...
• How it works – 3 single-axis sensors combined
into one sensor
• Example designs
3-Axis
• What it measures: Forces and Torques in all
axis
• Benefits: Compact design, simplified
installation, reduces required e...
Full wheatstone
bridge on each leg
Each channel output
is in mV/V
• How it works – 6 full wheatstone bridges
• All six leg...
• Load in each axis is calculated as the cross-product
between the output on each channel and the 36-term
coefficient matr...
• Simplifies data
BSC8 & Software
• Cutting Force
3-Axis Application
• Friction Testing Machine
3-Axis Application
• Wave Tank Lift & Drag
3-Axis Application
• Wind Tunnel
6-Axis Application
• Ball & Socket
6-Axis Application
6-Axis Application
• Seat Testing
Questions?
Thank You
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3 axis and 6-axis Introduction & Primer

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Slides from June 24th Interface Webinar with Keith Skidmore

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3 axis and 6-axis Introduction & Primer

  1. 1. 3-Axis and 6-Axis Introduction & Primer Keith Skidmore June 24, 2015
  2. 2. • Single Axis • 2-Axis –Axial Torsion (Fz, Mz) • 3-Axis – Fx, Fy, Fz • 6-Axis – Fx, Fy, Fz, Mx, My, Mz • 3-Axis Applications • 6-Axis Applications • Q&A Agenda
  3. 3. • What it measures: Any single Force or Torque • Benefits: Highest accuracy • Limitations: Only measures one axis Fz Single Axis
  4. 4. • What it measures: Any two Forces or Torques simultaneously • Benefits: Off-the-shelf, high accuracy sensors • Limitations: Fixturing / Installation + 2-Axis Using 2x Single Axis Sensors
  5. 5. • What it measures: Fz and Mz in one sensor • Benefits: Compact design • Limitations: Fixed ratios of Force to Torque Fz Mz Axial Torsion
  6. 6. • What it measures: Forces in all 3 Axis – Fx, Fy & Fz • Benefits: Compact design • Limitations: Fixed capacities in each axis 3-Axis
  7. 7. • How it works – 3 single-axis sensors combined into one sensor • Example designs 3-Axis
  8. 8. • What it measures: Forces and Torques in all axis • Benefits: Compact design, simplified installation, reduces required engineering • Limitations: Fixed capacities in each axis 6-Axis
  9. 9. Full wheatstone bridge on each leg Each channel output is in mV/V • How it works – 6 full wheatstone bridges • All six legs react to any given load. • Individual load values are calculated using the product of a all 6 channels of output and a coefficient matrix 6-Axis
  10. 10. • Load in each axis is calculated as the cross-product between the output on each channel and the 36-term coefficient matrix. • Fx = CH1*CO1 + CH2*CO2 + CH3*CO3 + CH4*CO4 + CH5*CO5 + CH6*CO6 • Fy = CH1*CO7 + CH2*CO8 + CH3*CO9 + CH4*CO10 + CH5*CO11 + CH6*CO12 • Fz, Mx, etc.. • There is also a calculation to translate the calculated moments from the measurement origin to the point of application. 6-Axis
  11. 11. • Simplifies data BSC8 & Software
  12. 12. • Cutting Force 3-Axis Application
  13. 13. • Friction Testing Machine 3-Axis Application
  14. 14. • Wave Tank Lift & Drag 3-Axis Application
  15. 15. • Wind Tunnel 6-Axis Application
  16. 16. • Ball & Socket 6-Axis Application
  17. 17. 6-Axis Application • Seat Testing
  18. 18. Questions?
  19. 19. Thank You

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