Historical history of thermistors

Today's editors have to trace back to the history of thermistors. The development process of thermistors in different periods is different in their manufacturing processes and functions. These constant research and manufacturing are for the sake of products more practical and practical. Let's take a look.

Michael Faraday (1791-1867), a British chemist and physicist, was first known for his exposure to electromagnetic induction and electrochemical work. The less familiar one is Ag2S (silver sulfide), which can be considered first. Record the semiconductor behavior of NTC thermistors.

Because early thermistors were difficult to produce and the application of technology was limited, commercial production and use of thermistors did not begin until 100 years later. In the early 1940s, Bell Telephone Lab developed technologies to improve the consistency and repeatability of manufacturing processes. Early commercial thermistors were of the ceramic type and their tolerances were quite extensive according to today's standards. These devices are primarily used for regulation, protection, and temperature compensation of electronic circuits.

In the 1950s and 1960s, the need to expand the flight industry for more accurate and stable equipment led to several improvements in materials used to make glass beads and disc thermistors. In the 1960s and 1970s, the development of chip thermistors was driven by the demand for high-torque tolerance equipment at lower cost.

With the increased reliability of these devices in the 1980s, the use of electronic thermometers in the medical industry has increased. The rising cost of sterilizing sources and concerns about cross-contagion between patients has led to inexpensive disposable thermometers, and for this reason, chip thermistors are a very suitable requirement. Throughout the 1980s and 1990s, the adoption of NTC thermistors continued to grow in the automotive, food processing, and HVAC markets.