WIRELESS TEMPERATURE SENSOR

摘要

The invention relates to an integrated temperature sensor (1) consisting of: means (2000) for generating a pulse train (DATA_IN) at an oscillation frequency, means (3000) for counting the number of pulses during a pre-determined period of time independent of the temperature to be measured (T) and for generating a plurality of bits (b₁₁, b₁₀,..., b₀) indicating the number of pulses in the pulse train (DATA_IN), and means (4000) for generating a serial digital signal (DATA_OUT) from said bits (b₁₁, b₁₀,..., b₀), in which the pulse train (DATA_IN) generating means (2000) include a plurality of logic gates (2410, 2420, 2430, 2440, 2450) which can introduce a delay dependent on the temperature to be measured (T), said means (2000) generating a pulse train (DATA_IN) having an oscillation frequency that is dependent on the temperature to be measured (T). The invention also relates to a temperature measurement method and to a transponder for the wireless system.