Sensor technology is a key technology for measuring, controlling, and regulating mechatronic systems in automation, especially in production and process engineering. Particularly in connection with Industry 4.0 and the connectivity of machines, sensors play a significant role in industrial production. For machines to communicate with each other and report errors, sensory systems must be capable of capturing a wide variety of demand forms. The book describes the development and practical application of the most important sensors. Through application-oriented error analyses of measurement systems, sensors, and sensor systems, each supplemented by many detailed, fully calculated application examples, the book is suitable not only for students but also for engineers and technicians from various fields.