MCW

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AMTI's walker sensors are specifically designed for the precise measurement of the forces and moments transmitted through walkers, canes, and crutches. These long-life, easy-to-use sensors are ideal for research and testing environments, featuring high stiffness, high sensitivity, low cross-talk and excellent repeatability. Specific applications of the sensors include gait analysis, stability analysis, neurological analysis, prosthetics fitting, and work studies.

AMTI's walker, cane, and crutch sensors measure the three orthogonal force and moment components along the x-, y-, and z-axes, producing a total of six outputs. The bodies of the load cells are manufactured from a high-strength aluminum alloy and protected by a durable anodized finish.

MCW sensors are available in pediatric anterior (PA) walkers, pediatric posterior (PP) walkers, adult anterior (AA) walkers, and several crutches and canes. The sensor mounting hardware has been designed for use with KAYE posterior walkers, and Guardian anterior walkers, crutches, and canes. Other versions are available upon request.

As with all conventional strain gage transducers, the use of an amplifier is required for bridge excitation and signal amplification.

MCW series specifications 250 500 1000
Fx, Fy Capacity, Ib
(N)
125
(550)
250
(1100)
500
(2200)
Fz Capacity, Ib
(N)
250
(1100)
500
(2200)
1000
(4400)
Mx, My Capacity, in*lb
(Nm)
250
(28)
500
(56)
1000
(112)
Mz Capacity, in*lb
(Nm)
125
(14)
250
(28)
500
(56)
Fx, Fy Sensitivity, μV/[V*lb]
(μV/[V*N])
12.0
(2.7)
6.0
(1.35)
3.0
(0.67)
Fz Sensitivity, μV/[V*lb]
(μV/[V*N])
3.0
(0.67)
1.5
(0.34)
0.75
(0.17)
Mx, My Sensitivity, μV/[V*in*lb]
(μV/[V*Nm])
30
(265)
15
(132)
7.5
(66)
Mz Sensitivity, μV/[V*in*lb]
(μV/[V*Nm])
24
(212.4)
12
(97.4)
6.0
(50.4)
Fx, Fy Stiffness, x105 Ib/in
(x105 N/m)
0.12
(20)
0.3
(50)
0.6
(100)
Fz Stiffness, x105 lb/in
(X105 N/m)
1.7
(300)
4.5
(800)
9.0
(1600)
Mz Stiffness, x105 in*lb/radian
(X105 Nm/radian)
0.2
(0.02)
0.5
(0.05)
1.0
(0.11)
Weight 1.3 lb (0.59 kg)
Recommended Excitation 10V or less
Crosstalk Less than 2% on all channels
Temperature Range 0 to l25°F (-17 to 52°C)
Fx, Fy, Fz hystersis ± 0.2 % full scale output
Fx, Fy, Fz non-linearity ± 0.2% full scale output
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TECHNICAL DRAWINGS
Footprint Drawing (click on image to enlarge)
Footprint Drawing (click on image to enlarge)
Electrical Drawing (click on image to enlarge)
TECHNICAL DRAWINGS
Footprint Drawing 
Footprint Drawing 
Electrical Drawing