OVEN PROVIDED WITH A MEASUREMENT SYSTEM INSIDE THE FIBROUS MAT
An oven for heating a fibrous mat comprising a first conveyor (4) for conveying the mat in a forward direction, and a measurement system inside the mat, comprising a sensor mounted on said first conveyor (4) and adapted to move, in a transverse direction of the mat, between a first retracted position inside the conveyor and a measurement position inside the mat under the effect of an activation system, the measurement system being such that the sensor is connected by a mechanical transmission system (40) to a finger (54) projecting on a lateral side (4c) of the first conveyor (4), and the activation system (60) comprises at least one contact surface (64) located facing said lateral side (4c) of the conveyor (4) and adapted to engage with said finger (54), when it moves in the forward direction in order to move the sensor from its retracted position to its measurement position by means of the mechanical transmission system (40).