A thermocouple is a type of temperature sensor that is mainly used to measure the temperature of a medium, but it generally needs to be connected to a system or display head, because it cannot directly display the temperature value. Even so, its ** is not very low, from hundreds to thousands, so what factors will affect its **?
Material: The material of the thermocouple has a direct impact on its performance and quality. Different types of thermocouples, such as K-type, J-type, T-type, S-type, etc., have different materials (such as nickel-chromium-nickel-silicon, platinum-rhodium-platinum, etc.), *such as platinum rhodium) thermocouples made of thermocouples are relatively more expensive due to the high cost of materials.
Accuracy grade: The higher the accuracy grade of the thermocouple, the more stringent the manufacturing process requirements, so the higher the **. Common accuracy levels include grade, grade, etc.
Length and diameter: The larger the length and diameter of the thermocouple, the more raw materials are required, and the production cost will increase accordingly, and the higher the ** will be.
Process complexity: For example, different types such as armored thermocouples, surface thermocouples, high-temperature thermocouples, anti-corrosion thermocouples, etc., have different production processes and technical difficulties, which will also affect the final selling price.
Brand and quality: The thermocouples produced by well-known brands are usually higher than ordinary brands because of their large investment in R&D, design and manufacturing processes, and their quality is more guaranteed.
Whether there are accessories: whether the accessories such as compensation wires, junction boxes, protective tubes, connectors and other accessories are complete, as well as the quality and material of these accessories, will affect the overall thermocouple**.
But the material that plays the biggest role is still the material, of which platinum rhodium is the most expensive.