The problem
The quality and the mechanical/chemical performance of tires are related to the quality of their production process (vulcanization thermal cycles, integration of different materials) and later on to the quality tests. In particular, vulcanization is an extremely sensitive process, only taking place between 100 and 200 °C.
Production process optimization and product quality ensurance need hence for temperature monitoring inside the elastomeric blend making up the tire both during vulcanization and during the following durability tests.
The use of traditional wired sensors (thermocouples/thermoresistances) is expensive and not easy to embed in rotating structures.

Our solution
In collaboration with a market leader in tire manufacturing, we developed a new wireless and batteryless sensor optimally suitable for integration into the elastomeric blend of the tire. The sensor can be used to perform monitoring during the vulcanization phase. Moreover, it can provide temperature data in real time for multiple sample points in the tire during fatigue tests as well as for the entire life cycle.
Radio6ense also developed and set up at the Customer's premises an HW/SW lab for characterization of the sensors once embedded in the tire, also providing training for the Customer personnel, to ensure the new technology is used correctly and at its best.

Expected benefits
Thanks to the absence of cables and batteries, the developed system can very easily be integrated with the set-up of the durability tests and does not require any modification to the just manufactured tire.
Such solution enables to diminish costs for the instrumentation and the time needed to run the tests.