Infrasound debate: Background and measurement examples

As an argument against the installation and operation of wind turbines, infrasound heats up the minds of citizens engaging against wind power. But what is infrasound actually? How can infrasound be measured? What sources do we see, and at what intensity can people perceive infrasound? Dr. Stefan Holzheu, expert for sensor data acquisition and processing at BayCEER / University of Bayreuth, has compiled background information and examples (in German language). For "makers" there is also a guide for building your own infrasonic measuring tool.