Tire pressure and temperature sensor comprises a hermetically sealed housing with a membrane, piezoelectric support, interdigital transducer and measurement and reference reflectors

摘要

Passive pressure and temperature sensor has a radio interface with which it can be interrogated by a control unit. Sensor has a hermetically sealed housing (10) that is filled with a defined gas volume and has a membrane (8) with a surface wave structure that is connected to an antenna (3). A piezoelectric support (1) and an interdigital transducer (4) are used with measurement (6, 7) and reference (5) reflectors. An Independent claim is made for a measurement arrangement for dynamic measurement of temperature and pressure within a motor vehicle tire.