Development status of domestic temperature transmitter in China
When it comes to industrial measurement, temperature must be an inextricable topic, the importance of temperature measurement is self-evident, all walks of life need to carry out temperature measurement. A long-term temperature, accurate and reliable temperature transmitter is a common requirement for every factory that cares about quality.
At present, there are many manufacturers of temperature transmitters in the world, famous Honeywell, Emerson (Rosemont), E+H, Yokogawa, Denmark PR, WIKA and other companies, these companies do temperature transmitters history is more than 30 years, and some even more than 50 years, they in the past decades of product development and manufacturing, The quality of the product is very good, from the accuracy, stability, anti-interference, high and low temperature drift, etc., all aspects are very good.
Temperature transmitter is a very common product, but although ordinary, there are few companies that can do a good job, which has a great deal of knowledge. The author tested the domestic mainstream of each temperature transmitter, the unit price from 50 yuan to 400 yuan were tested, found that these temperature transmitters have many shortcomings: temperature drift is not good, accuracy is not enough, consistency is not good and so on. Why are these products not working? This is actually caused by these several reasons:
1: Especially care about the cost, such as 50 yuan transmitter, he is impossible to use high-precision resistance, a transmitter there are a lot of high-precision resistance, those who do a good foreign brand, the cost of the resistance inside will need more than 20 yuan, plus other components, the cost is more expensive than the domestic price, so the domestic due to the first major factor: cost, limited quality.
2: The software development ability is not good, especially some basic data, the basic data need to be integrated into the algorithm, the software algorithm here refers to our temperature transmitter in the development and design process, to do a variety of data compensation, these data compensation requires a lot of experiments and time. To do these is the need for talent, professional talent to do this experiment, capture these data, the second is the need for a large number of costs, domestic manufacturers do temperature transmitter, the largest annual sales of only tens of millions, it is difficult to support the cost of talent and experiments. The best software engineers in China are probably in Internet and gaming companies, which really limits the development of temperature transmitters and also limits the development of the automation industry. A lot of nonsense, let high-end talents return to manufacturing, high-end manufacturing is imminent ah.
3: Analog circuit development level is not good, now hardware electronics engineers are used to using a variety of digital chips, the digital interface of these chip manufacturers is becoming more and more rich, so that many electronic engineers do not have many opportunities to develop with analog circuits, over time, the development level of analog circuits is much worse. There is a joke in the industry, said 20 years ago to learn analog engineers graduated, can not find a good job, all the recruitment units like to use proficient digital circuit engineers, in recent years as our country more and more attention to the chip industry, analog circuit engineers suddenly become sought-after, a good analog circuit engineer's annual salary even reached 1 million. Why is this? Because the chip development industry needs a lot of analog circuit masters. The development of temperature transmission also needs a lot of analog circuit masters, for example, in the case of high speed without speed limits, driving from Shanghai to Nanjing, the level of high people can drive to two hours, the level of average people can drive to three hours, there is a huge gap in the middle.
4: The problem of the market, our domestic transmitter manufacturers are too roll, do too many manufacturers, resulting in bad money to drive out good money, some manufacturers, a temperature transmitter sell 15 yuan, alas, they can make money? No, why do we do it? But someone is actually doing it! An imported brand of transmitter sells 500 yuan, some of us sell 50 yuan, and others sell 15 yuan, nothing to say ah! I appeal to all peers, we do the product first is to ensure the quality, if you have good quality, then optimize the cost, such as the introduction of automated production, reduce labor costs, such as through bulk procurement, reduce the cost of components, etc., there are many ways, but do not do shoddy, do not care about quality, do rotten goods, do ultra-low prices to impact the market, This is like drinking poison to quench thirst.
5: Why do we have so many temperature transmitter manufacturers, but none of them can go abroad? We Chinese have produced temperature transmitters for 30 years, so is it really not possible? No, because our quality is not good. Colleagues, be clear, now the market has begun to pursue good products, if you can make the product cheap and good, there is definitely a market! And reputation!
When we became aware of the problem, we began to solve these problems. The next article introduces the temperature transmitter and temperature sensor produced by Banning.
