Product Update: Wheel Pulse Transducer

The Wheel Pulse TransducerMichigan Scientific High Resolution Wheel Pulse Transducer (WPT) uses an integrated encoder and attaches to a wheel. The WPT can gather data on wheel or vehicle speed, vehicle acceleration, and distance traveled. This makes it ideal for applications such as brake or ABS testing. Another common use for the WPT is measurement of wheel speed and distance traveled for vehicle GPS and navigation system testing applications. The WPT can also be used for autonomous and electric vehicle development.


Wheel Pulse Transducer UpdatesWheel Pulse Transducer drawing

Now the Michigan Scientific WPT is better than ever. The model WPT/E_/S is shorter than previous models, enabling it to fit in even more limited space applications. Optical encoder resolutions ranging from 50 ppr to 5,000 ppr are available. Each of the encoder choices have four outputs (A, B, I, and A⊕B). The WPT is also available with up to IP67 protection, making it weatherproof in even the harshest testing environments. Units can provide accurate results at speeds up to 10,000 r/min.

The assembly consists of the encoder in a rugged housing, a wheel adapter plate, a stator restraint, and a cable. It mounts directly on the wheel via Quick Connect Lug Nuts or Extended Lug Nuts.


Converting Encoder SignalsEV-LC drawing

The digital pulses of the WPT sensor encoder can be converted to other signal formats using the Michigan Scientific EC-LV Linear Voltage Conditioner. The EC-LV conditioner can be added in-line with the stator cable and does not require additional programming. It converts 0-5 V digital pulses to linear voltages proportional to angular position and angular velocity. The external switches allow the user to select the speed range and direction of rotation. It outputs angular position and velocity signals in addition to the four encoder signals.

The WPT has been redesigned for improved performance in any testing application. To discuss using the WPT for your vehicle testing, contact a Michigan Scientific representative today.