Sensor technology occupies a very important position in the field of contemporary science and technology, the 21st century people in high and new technology development for a commanding heights, the developed countries abroad will sensor technology as the key to the development of modern high technology. Since the 1980 s, Japan will sensor technology as a high priority to the development of the fishing technology, basic knowledge of the western countries such as America will also sensor as the key point of the development of the national science and technology and national defense technology. At present, the world is facing a new technological revolution, the revolution of information technology is the main foundation. The development of information technology to human society and various departments and fields of national economy has brought huge, extensive and profound changes, is a strong driving force of the development of human society today. And is changing the traditional mode of production industry, in the traditional industry and other emerging industries update and change. In military defense, aerospace, Marine development, biological engineering, health care, scope of inspection, inspection, environmental protection, security, home appliances, etc., nearly every modern project also cannot leave the sensor technology. Pressure sensor is the most common industrial practice, a sensor, and we usually use pressure sensor is mainly manufactured using piezoelectric effect, and this sensor is also known as piezoelectric sensor.