Analyze the development of foreign sensor technology

There are mainly two different ways to develop sensor technology in foreign countries. One is the post-communist civilian use represented by the United States, and the first is to increase the popularization; the other is to focus on practicalization and commercialization as represented by Japan, first to increase it after popularization. From the introduction, digestion, imitation to self-improvement design innovation. The former spends more money while the latter spends less money and develops faster.

First, the development of foreign sensors in the research, development, production, application of speed quickly attaches great importance to the development of sensor technology. For example, the solid-state sensor development center of Honeywell Company in the United States invests 50 million U.S. dollars or more in research equipment every year. It includes computer-aided design, single crystal growth, processing, pattern generator, synchronous repeat photography, and automatic State-of-the-art complete sets of equipment and production lines for coating and lithography, plasma etching, sputtering, diffusion, epitaxy, evaporation, ion implantation chemical vapor deposition, scanning electron microscopy, encapsulation, and shielding dynamic testing, and are updated approximately every three years or so Most of these instruments and equipment.

Pay attention to the sensor production process research. The principle of the sensor is not difficult and not confidential, and the most confidential is the technology. Foreign sensor companies generally do not hesitate to invest heavily in process research and rely on technological breakthroughs to maintain technological leadership.

Pay attention to quality management and market analysis. New products are available, and corresponding technical analysis reports have been submitted from design theory analysis to model testing, prototype performance testing and failure analysis. During the design stage, the quality of organization, software testing, product design engineering and technical personnel work together to discuss various factors affecting product design reliability, testability, and detectability to form the best technical solution and quality acceptance document to ensure new product quality. .

Second, research, development and production of foreign sensors The development of new sensor materials has become a new trend. The development and application of new materials such as ceramics, polymers, biology, and smart materials have not only expanded the types of sensors, but also improved the sensors. Performance broadens the application of sensors. Such as a new generation of fiber optic sensors, superconducting sensors, focal plane display infrared detectors, biosensors, diagnostic sensors, smart sensors, genetic sensors and fuzzy sensors.

The increasing popularity of advanced manufacturing technologies such as microelectronics, micro-machining, and ultra-precision machining in the development and production of various types of sensors has led to the development of sensors from traditional structural design to micro-machining technology based simulation programs. Microstructure technology is developing. For example, MEMS products (micro-sensors and micro-systems) manufactured using micro-machining technology have unique advantages such as epoch-making micro-volumes, low cost, and high reliability. And the function of the sensor is more and more diversified. The function is reflected in the sensor's ability to measure parameters of different natures, enabling comprehensive detection. For example, a sensor that integrates sensitive elements such as pressure, temperature, humidity, flow rate, acceleration, and chemistry can simultaneously detect the physical or chemical characteristics of the external environment.

With the development of product needs and emerging technologies, sensors are becoming integrated, intelligent, and networked. Integration allows the development of sensors from single-function, single-detection to multi-function and multi-point detection. In recent years, the development of intelligent sensors has begun to combine with artificial intelligence to create a variety of highly intelligent sensors based on fuzzy inference, artificial neural networks, expert systems and other artificial intelligence technologies, called soft sensor technology, which is already in the field of home appliances. Get used, I believe the future will be more mature. The development of network sensors makes it possible for measurement and control systems to actively perform information processing and remote real-time online measurements.