History of isolator

1. The history of the development of the isolator The birth of the isolator is due to the filtering of industrial site noise and high and low frequency pulse signal interference and the isolation protection of the control system to ensure the accuracy, stability and reliability of the signal output. Later, the signal is transmitted and the load is increased. The design of capabilities has also increased. It has been developed for more than 40 years. It almost appeared with the emergence of early industrial automation. The acquisition of analog signals has brought great help to the fine measurement and control of industrial processes. It is widely used in metallurgy, electric power, cement, Shipbuilding, machinery manufacturing and other industries.　　In the initial stage, the signal acquisition was done by transformer isolation. Its characteristics are: stable performance, long life, high precision, strong load capacity, high isolation strength, but the circuit is complex, and the manufacturing process requires higher requirements. With the development of electronic technology, optoelectronic isolators produced by optocouplers have gradually appeared in recent years. Its characteristics are: stable performance, strong anti-interference ability, simple wiring and low cost, but compared to transformer isolation methods The life span is slightly shorter and the accuracy is slightly lower. In some occasions where the interference is large and the process requirements are high, the isolator of the transformer and photoelectric combination mode appears, and its isolation ability, anti-radio frequency and electromagnetic interference ability are stronger.　　二. Development status of the industry brand of isolator 　　 The current market for isolator brands is divided into two camps, the domestic camp and the foreign camp. The domestic camp mainly uses cheap prices as a breakthrough. The foreign camps mostly win the market with their brand and quality advantages. The top manufacturers in the foreign camps are Weidmüller, MTL, P+F, Konica, Turck, and Madsen. Domestic manufacturers such as Chenzhu, Yutong, Shengsier, Wanxun, Shangrun, Hongrun, etc. In the past two years, more and more competitors have entered this market. Therefore, various manufacturers have not improved their production. They are mainly used in the petrochemical and chemical fields. Isolated safety barriers account for a large proportion, and Zener types are rare. Other industries, metallurgy, etc. are all fragmented, but they account for less. Intelligence is one of the development trends.　　In terms of distributors, the sales of manufacturers are more based on agents and system integrators. However, some agents have insufficient engineering installation qualifications, so sales are restricted. Sometimes, in order to increase the volume, and even fight price wars with manufacturers, the market competition for products with low profits is intensified. 3. Current status of the consumer market in the isolator industry. Technological innovation is the driving force for the progress of modern society. With the continuous development and changes of my country's social economy, instrument equipment has also developed rapidly, and various instrument manufacturers have quickly joined the development of isolators. , Making the market competition of isolators become fierce. As a vital role in life, isolators are inseparable from the vital role of life. If you want to continue to develop in this increasingly competitive market, you must clearly see the development trend of the market and pursue technology. Innovation is the only way to gain a firm foothold in the blooming isolator market. Because the development of isolators in our country started late, and the conditions and technologies in all aspects are not perfect. If you want to improve your own deficiencies, you must work hard to learn the level of foreign technology under the premise of scientific and technological innovation, and have your own high-tech skills, but After decades of development, we have a full understanding of the current form of enterprise development. Only from the different needs of customers and changes in the market can we find breakthroughs in development, and make full use of innovative ideas such as science and technology to develop more functions New instruments and equipment to meet the needs of customers, and with the popularization of automation and intelligence in production, isolators have become more and more abundant.