Sensors in the traditional transition to the new stage of development.

<P> Recent years, the sensor is in the transformation of traditional to a new stage of development of the sensor. .New sensor is characterized by miniaturization, digital, intelligent, multi-functional, systematic, network, and it not only promoted the transformation of traditional industries, and can lead to the establishment of new industries in the 21st century, new economic growth point. .Miniaturization is based on microelectromechanical system (MEMS) technology-based, has been successfully used in silicon devices to form silicon pressure sensor. .</ P> <P> MEMS processing techniques, including bulk micromachining, surface micromachining, LIGA techniques (X-ray deep lithography, electroforming and micro-replication technology), laser micromachining and micro- .packaging technology. .</ P> <P> MEMS development, the miniaturization of sensors, intelligent, multi-functional and reliability levels to new heights. .Sensor instrumentation, based on microelectronics technology, built-in microprocessor, or the micro-sensors and microprocessors and related integrated circuits (operational amplifier, A / D or D / A, memory, network communications interface circuits .) and other packages with completed digital, intelligent, network and systematic. .(Note: MEMS technology has also completed the micro-motor or actuator, and other products, will introduce another essay) network, at present mainly refers to the use of a variety of field bus and Ethernet (Internet), which according to the characteristics of various industries, .choose one or more of the most popular in recent years have FF, Profibus, CAN, Lonworks, AS-Interbus, TCP / IP and so on. .</ P> <P> addition to MEMS, the new sensor also depends on the development of new sensitive materials, and nano sensor technologies, such as a new generation of fiber optic sensors, superconducting sensors, focal plane array infrared detectors, biological sensors, nano-sensors ., the new quantum sensors, micro-gyroscope, networked sensors, smart sensors, fuzzy sensors, multifunctional sensors. .</ P> <P> multi-sensor data fusion technology is the formation of hot spots, which formed in the 20th century, 80's, it is different from signal processing, but also from single or multiple sensors of the monitoring and measurement, but more based on .sensor based on the results of a higher level of integrated decision-making process. .In view of the miniaturization of sensor technology and intelligence to improve the access to information based on the integration of multiple functions so that further integration, which is an inevitable trend, multi-sensor data fusion technology also contributed to the development of sensor technology. .</ P> <P> the definition of multi-sensor data fusion summarized: the distribution of a number of different locations in the same or different types of sensors to provide comprehensive local data sources, analyze it using computer technology to eliminate the multi-sensor information .may exist between redundancy and contradiction, to be complementary, reducing its not true, access to test the consistency of interpretation and description of the object, thereby improving system decision-making, planning, response speed and accuracy, making the system more fully .information. .The information fusion at different levels of information appear, including the data layer (pixel level) fusion, feature level fusion, decision-making (evidence level) fusion. .Information than a single sensor since it has the following advantages, namely, fault tolerance, complementary, real-time, the economy, and so was gradually popularized. .In addition to military applications, the technology has been applied to automation, robotics, marine monitoring, seismic survey, construction, air traffic control, medical diagnosis, remote sensing and so on. .</ P> <P> of the sensor industry to adapt to technology trends, the combination of domestic and international markets to the international direction, sensors and instrumentation for development of information technology to seize opportunities. .</ P> <P> </ P>.