RS Technologies


	Passenger Car-Light SUV WFT

Passenger Car/Light SUV (WFT-MP-AL, WFT-PC-TI)

These WFTs are designed for use on small passenger cars and light-weight SUVs. Identical in size, they come in two capacities as detailed in the table below. The rugged single-piece transducer design provides high accuracy and superior performance in a durable water-resistant package. Theses sensors can be fit with slip-ring or telemetry signal transmission. With on-board signal conditioning and calibration circuitry for each channel of data measurement, their setup and use with the MOPS-TIU interface package can be accomplished in a few minutes per wheel. The MOPS-TIU can be used as a standalone data acquisition package or can be used to interface to existing data acquisition systems.

The WFT-MP-AL can measure loads up to 30 kN (6,700 lbs) and 5.6 kNm (50,000 lb-in); the WFT-PC-TI can measure loads up to 45 kN (10,000 Lbs.) and 8.4 kNm (74,300 Lb-In). They mount to the vehicle hub via a custom hub adapter and accept modified rims mounting standard vehicle tires.

Passenger Car/Light SUV SPECIFICATIONS

ITEM	WFT-MP-AL	WFT-PC-TI
FX Capacity	30 kN (6,700 Lbf)	45 kN (10,100 Lbf)
FZ Capacity	30 kN (6,700 Lbf)	45 kN (10,100 Lbf)
FY Capacity	15 kN (3,375 Lbf)	22.5 kN (5.050 Lbf)
MX Capacity	4 kNm (36,000 Ln-In)	6 kNm (53,000 Ln-In)
MZ Capacity	4 kNm (36,000 Lb-In)	6 kNm (53,000 Lb-In)
MY Capacity	5.6 kNm (50,000 Lb-In)	8.4 kNm (74.300 Lb-In)
Dimensions	279 x 126 x 61 mm (10.9 x 4.9 x 2.4 in.)	279 x 126 x 61 mm (10.9 x 4.9 x 2.4 in.)
Weight	4.0 kg. (8.8 Lbs.)	6.5 kg. (14.3 Lbs.)
Max. Hub Diameter	152 mm (6 in.) w/hub adapter	152 mm (6 in.) w/hub adapter
Min. Rim Size	330 mm (13 in.)	330 mm (13 in.)
Material	Aluminum	Titanium

GENERAL WFT SPECIFICATIONS

Nonlinearity	±0.5% of rated output
Hysteresis	±0.5% of rated output
Non-repeatability	±0.25% of rated output
Crosstalk	±1% Full Scale, typical; ±3% Full Scale, maximum
Excitation	±15 VDC
Output (all axes)	5.00 vdc ± 0.2%, nominal
Temperature Range	-25 to 150° C
Temperature Drift	0.005%/°C
Angle Encoder	Sine/cosine resolver
Coordinates	SAE Standard
Resolution	Depends on resolution of electronics; typically >30 Nt for force axes >3 Nm for moment axes
Bridge Resistance	Fx & Fz 525 Ohms, Fy, Mx, My & Mz 1400 Ohms, nominal
Isolation Resistance	2,000 M Ohms
Overload Capacity	50% of Full Scale on all axes applied simultaneously, provided that the combined load on each axis does not exceed the overload rating for that axis
Natural Frequency	<300 Hz
Acceleration Tolerance	Shock 40 m/sec²
Environmental	Dust-proof, water resistant, short-term submersible, corrosion resistant

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