Device and method for determining the temperature of a road building material applied by a construction machine, and construction machine comprising such a device

A device for determining the temperature of a road building material applied by a construction machine in a mounting width, comprising:

• an infrared temperature measuring head,
• a motor, and
• a controller, wherein
• the infrared temperature measuring head is arranged to be twistable by the motor transverse to the direction of travel of the construction machine and to record temperature measuring values of the surface of the road building material during a rotational movement at at least two measuring points spaced apart from one another,
• the device is freely mountable to the construction machine at different fitting positions,
• the controller controls, when fitting the device at the construction machine in a region within the mounting width, the motor based on a fitting position of the device at the construction machine such that a distance between measuring points on the surface to be measured remains equal irrespective of the fitting position of the device, and
• at least one of (i) the distance between the measuring points, and (ii) a duration of a temperature measurement of at least one of the measuring points, is adjustable.