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Sensing is the process of converting various quantities into physically recognizable signals for output. Sensing is the process by which a person processes these or other signals. For example, for indoor humidity, we use a moisture-sensitive capacitor to convert the humidity signal into a capacitive signal, which is called sensing. The process of processing the sensed signal is detection.
Displacement detection - the sensors used are: pulse encoder, linear encoder, resolver, inductive synchronizer Position detection - contact sensor, proximity switch Speed detection - the Commonly used are speed generators and pulse encoders Pressure detection - piezoelectric sensors, piezoresistive sensors and capacitive sensors Temperature detection - Commonly used are platinum and copper based thermoelectric negative sensors, semiconductor based thermistor sensors and thermocouple sensors. and thermocouple sensors. On CNC machine tools, temperature sensors are used to detect temperature and thus compensate for temperature and protect against overheating. Tool wear monitoring - tool wear to a certain extent will affect the dimensional accuracy and surface roughness of the workpiece, therefore, the tool wear should be monitored. When the tool wear, the machine tool spindle motor load increases, the motor current and voltage will also change, the power changes, power changes can be detected by Hall sensors.
Sensor and Detection Technology" is the frontier technology of modern science and technology, the foundation of manufacturing automation and informationization, the second special network and the future "ubiquitous network" information source of important supporting technology, is suitable for electromechanical, automation, aviation, navigation and aerospace and other professional basic courses. Sensor and detection technology involves a variety of physical quantities, chemical quantities, biological quantities, such as measurement, transformation and processing, is a very wide range of applications, industrial and agricultural production, national defense and other courses of great significance. The course involves physics, chemistry, test metrology, electronics, mechanics, communications, computers, automatic control, instrumentation and many other disciplines, its theory and practice are very strong. Learning this specialized basic course will play a very important role in students' future work, therefore, domestic and foreign colleges and universities attach great importance to the teaching of this course. "Sensors and detection technology" course in the content of the field of detection technology, including some of the basic concepts and measurement methods, error analysis and measurement data processing, the general characteristics of the sensor analysis, a variety of commonly used sensors (such as resistance, inductance, capacitance, piezoelectricity, magnetoelectricity, thermoelectricity, photoelectricity, etc.), the working principle, structure, nonlinear error compensation, the working principle, structure, and nonlinear error compensation, the use of sensors in the future. The course focuses on the accumulation of theoretical basic knowledge as well as the cultivation of practical engineering measurement and control technology and advanced scientific methods. Learning the course well is important for the students' graduation design, electronic design and data processing.
Mechatronics technology includes the following contents: (1) Mechanical technology Mechanical technology is the foundation of mechatronics. Mechanical technology focuses on how to adapt to mechatronics technology and utilize other high and new technologies to update the concept, realize the changes in structure, material and performance, and satisfy the requirements of weight reduction, volume reduction, precision improvement, rigidity improvement and performance improvement. In the manufacturing process of mechatronic system, the classical mechanical theory and process should be used with the help of computer-aided technology, and at the same time using artificial intelligence and expert systems, etc., to form a new generation of machinery manufacturing technology. (2) Computer and Information Technology Among them, information exchange, access, operation, judgment and decision-making, artificial intelligence technology, expert system technology, and neural network technology all belong to computer information processing technology. (3) system technology system technology, that is, the overall concept of organization and application of various related technologies, from a global perspective and system goals, the overall decomposition into a number of interrelated functional units, interface technology is an important aspect of the system technology, which is to achieve the organic connection of the various parts of the system to ensure. (4) Automatic control technology Its scope is very wide, under the guidance of control theory, system design, system simulation after design, on-site debugging, control technology, including such as high-precision positioning control, speed control, adaptive control, self-diagnosis and correction, compensation, reproduction, retrieval and so on.
I personally feel that mechatronics involves a wide range of aspects, such as PLC principles and applications, electrical and electronic technology and so on. It mainly depends on which aspect you are interested in when you study, which aspect you can focus on.
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