Sustainable temperature and pressure sensor for tire

This paper introduces two generations of sustainable tire pressure measurement sensor (TPMS) solution. Sensor solutions are built up on thin and flexible bio-PET substrates. Circuitries patterned by copper ink using screen printing process. Assembly of required SMD components including RFID and pressure sensor bonded on substrate using SnBiAg solder in low-temperature soldering process having peak temperature of 156°C. Components were supported by UV curable adhesive after bonding process to improve sensor long term reliability. Functional testing of assembled systems performed by placing system into garden pressure bottle together with Continental pressure sensor applied in trucks and lorries as reference measurement solution. Pressure inside the garden bottle increased gradually up to 4 bar pressure in functional testing. Measured data of sustainable sensors gathered through Bluetootb® using implemented mobile phone application. Reference sensor data monitored wirelessly through reference system by Continental.