The working principle of the integrated sensor and the significance of its measurement technology in modern industrial manufacturing

Abstract: The working principle of the integrated sensor and the significance of its measurement technology in modern industrial manufacturing are provided by excellent flowmeter and flowmeter manufacturers. Summary of this paper Sensors play an irreplaceable role in scientific research and technological development, especially in information technology, modern manufacturing and production process automation technology. With the progress and development of society and science and technology, people's demand for sensors. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the working principle of the integrated sensor and the significance of its measurement technology in modern industrial manufacturing. This paper summarizes that sensors play an irreplaceable role in scientific research and technology development, especially in information technology, modern manufacturing and production process automation technology. With the progress and development of society and science and technology, people have more and more demands for sensors, and the requirements are getting higher and higher. However, in practical applications, single-function sensors often cannot meet the increasingly high system requirements. For example, whether a hydraulic system works normally depends on whether two main working parameters, namely pressure and flow, are in a normal working state, and whether important auxiliary parameters such as system temperature and pump power are normal or not. Therefore, the most critical for hydraulic system status detection and fault diagnosis is the reliable acquisition of pressure, flow, temperature, and power parameters. Through extensive research and many experiments in different application fields, it is found that the traditional method of using three sensors to measure separately, even if the sensor has high precision, it is still difficult to achieve the ideal test result. Because first of all, there must be differences in the installation of the three sensors, the measured pressure, flow, and temperature are not actually the values ​​of the same measurement point, and there is a big gap from the same point, simultaneous, and real-time measurement of the test model. Secondly, the separate access systems of the three sensors will cause excessive leakage or mutual interference during the access process, thereby affecting the accuracy of the test and increasing the complexity of the test. In order to overcome the above determination, a design idea of ​​integrating the three sensors into one is required, that is, three sensors, namely pressure sensor, flow sensor and temperature sensor, are constructed on the same sensor body at the same time, so that the measured values ​​of the three parameters are concentrated in the At one point, the electrical signal is output through the transmitter for centralized measurement and control. This is the essence of integrated measurement technology. 'Integration' refers to the integration of interrelated systems or subsystems into a macro-ordered, overall optimal large system according to a certain purpose or a certain demand and in accordance with the principles of systems engineering, forming a system that is far greater than the simple addition of systems. overall efficiency. Integrated sensor structure mode As mentioned above, usually a sensor can only be used to detect one physical quantity, but in many application fields, in order to perfectly and accurately reflect objective things and the environment, it is often necessary to measure a large number of physical quantities at the same time . A multifunctional sensor composed of several sensitive elements is a new generation detection system with a small size and multiple functions. It can use different physical structures or chemical substances in the sensitive elements and their different characterization methods. Use a single sensor system to realize the functions of multiple sensors at the same time. With the rapid development of sensor technology and microcomputer technology, an integrated multi-functional sensor that integrates several sensitive elements on the same material or on a single chip can be produced. In general, the main execution rules and structural patterns of the multifunctional sensor system include the following aspects. ①The multi-function sensor system is composed of several different sensitive elements, which can be used to measure various parameters at the same time. For example, a temperature detector and a humidity detector can be configured together (that is, the thermal element and the humidity sensor are respectively arranged on the same sensor carrier) to make a new sensor, so that the new sensor can be Ability to measure temperature and humidity simultaneously. ②Several different sensitive elements are delicately fabricated in a single piece of silicon wafer, thus forming a highly integrated and miniaturized multifunctional sensor. Since these sensitive components are integrated in the same silicon wafer, they work under the same conditions at all times, so it is easy to compensate and correct the system error. ③ Under different excitation conditions, the same sensitive element will show different characteristics.

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