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Multi-axis Load Cell Chang Joon Lee CEE398 KUC Experimental Methods in Structural Engineering.

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Presentation on theme: "Multi-axis Load Cell Chang Joon Lee CEE398 KUC Experimental Methods in Structural Engineering."— Presentation transcript:

1 Multi-axis Load Cell Chang Joon Lee CEE398 KUC Experimental Methods in Structural Engineering

2 Keyword for Multi-axis Load Cell “MULTI-AXIS LOAD CELL” NOT “Multiaxial load cell”

3 Outline ■ What is multi-axis load cell? ■ What features of multi-axis load cell? ■ Products ■ How does it works? ■ Summary

4 What is Multi-axis Load Cell Any load cell (one unit) which can measure multi-axis load simultaneously

5 What features of multi-axis load cell 1.DOFs 2.Capacity of each DOFs 3.Mounting area (load cell shape and dimension) 4.Prices

6 Products

7 2 DOF : 2 Translation Fx= Fy = 200lb $1800

8 3 DOF: 3 Translation, Landing Gear Sensor Fx, Fy = 50,000 lb Fz = 150,000 lb 46” x 32”

9 2 DOF: 1 Translation + 1 Rotation Fz = 50~200lb Mx = 50~200lb-in Φ2.23in $1600

10 3 DOF: 1 Translation + 2 Rotation Fz =1,000~50,000 lb, Mx,My =400~2,000 in-lb

11 6 DOF: 3 Translation + 3 Rotation Fx, Fy = 50~500 lb Fz = 100~1,000 lb Mx, My = 100~1,000 in-lb Mz = 50~500 in-lb 3”x 3”

12 6 DOF: 3 Translation + 3 Rotation Fx, Fy = 5,000~10,000 lb Fz = 10,000~20,000 lb Mx, My = 40,000~80,000 in-lb Mz = 20,000~40,000 in-lb 8” x 8”

13 6 DOF: 3 Translation + 3 Rotation Fx, Fy = 500~2,000 lb Fz = 1,000~4,000 lb Mx, My = 6,000~12,000 in-lb Mz = 3,000~6,000 in-lb 12”x 12”

14 6 DOF: 3 Translation + 3 Rotation Fx, Fy = 500~2,000 lb Fz = 1,000~4,000 lb Mx = 4,000~16,000 in-lb My = 8,000~32,000 in-lb Mz = 4,500~18,000 in-lb 20” x 8”

15 6 DOF: 3 Translation + 3 Rotation, Landing Gear Sensor Fx, Fy = 25,000 lb Fz = 50,000 lb Mz= 25,000 ft-lb (300,000 in-lb) Mx=My=50,000 ft-lb (600,000 in-lb) 32” x 32”

16 How does it works? P P Axial strain ε  Axial load P

17 How does it works? T T strain ε  max. σ max  τ  Torsional moment T 45 ◦ τ τ τ τ σ min = -τ σ max = τ ε

18 How does it works? Different Manufacturers make different type of multi-axis load cell  different “Know-how” No information about their design

19 Summary 1. General Capacity of Multi-axis Load Cell Fx = Fy < Fz Mz < Mx = My 2. Max. Capacity of 6 DOF Load Cell Fx = Fy =25,000 lb Fz = 50,000lb Mz= 25,000 ft-lb ( 300,000 in-lb) Mx=My= 50,000 ft-lb ( 600,000 in-lb )

20 FYI

21 THANK YOU AND QUESTIONS


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