The main contents of this book include the basic knowledge of detection technology, the working principle, structure and application of various common sensors such as resistance, capacitance, inductance, piezoelectric, thermocouple, Hall, photoelectric, digital and new type. Focusing on the application of sensor technology, the processing and analysis of sensor elements and sensor signals are embedded in examples to explain and practice, integrating theory with practice, and strive to be easy to understand. Some photos of sensors are inserted in the book, which increases the intuition of the content. In order to improve students' practical ability, the book is equipped with a large number of sensor training projects, and the content of sensor small production is added.

This book can be used as a teaching material for electrical automation, mechatronics technology, production process automation technology, detection technology, electronic information and other majors in higher vocational colleges, as well as adult education, vocational training, engineering technology and other majors.