Race Car Front Suspension Rocker Sensor

Race Car Front Suspension Rocker Sensor

A custom position sensor designed to monitor the arc movement of the front suspension rocker on an IndyCar race car.

The sensor was designed to fit the existing rocker assembly without modification, with mounting positions aligned with existing holes and features of the rocker.

  • 0-45 degree measurement range
  • Designed to fit existing components without modification
  • 3 week delivery timescale


The brief

A leading IndyCar race team approached us to design a suspension position sensor. They needed to monitor 45 degree arc movement in a front suspension rocker. During a race the team experienced frequent component failure, often more than once. These are harsh operating conditions. The brief was to design and produce a reliable sensor to replace the failing component, without modifying the rocker assembly. We were given three weeks to design and produce a fully-functional solution.

The project

The suspension rocker position sensor had to operate reliably in the high temperature, high-vibration environment found in IndyCar. Reventec has an enviable history developing sensors for use in top-flight motorsports, so we have a good understand of the challenges.

The team needed a direct drop-in replacement for a troublesome component, so it needed to remain accurate under high vibration. Reventec position sensors use the latest TMR, non-contact sensing technology. This means they don’t suffer from the same physical wear characteristics of potentiometers and other legacy technologies.

About Reventec

We use the latest TMR technology to measure linear, angular and rotary component movement. Reventec sensors can also measure through 40mm of non-ferrous material. This delivers a high level of accuracy and reliability, and is unmatched by potentiometers or other legacy technologies. Our position sensors are ideal for use in harsh environments because they are solid-state and robust.

Our products provide highly-accurate data and are factory calibrated to a user’s specifications. They are also user-programmable via a simple GUI, supplied free of charge.

Reventec also designs and builds capacitive liquid level sensors and programmable temperature sensing solutions.

We produce a range of standard and customisable sensor configurations We also offer a full custom design service.

Reventec customers value our technical expertise and also our fast response times. They typically operate at the cutting edge of:

  • Motorsports
  • Defence manufacturing
  • Industrial automation
  • Automotive industry

Reventec provides design consultancy and one-off / small-batch production runs. We can scale up production to 5000+ pieces, as required.

Additional information

Measurement Type


Sensing Range



12 bit