Koaksiaalilämpöparianturi

Koaksiaalilämpöparianturi, often referred to as a coaxial thermocouple, is a specialized type of thermocouple used for temperature measurement in specific applications. It combines the thermocouple wires with a coaxial cable structure, where the two thermocouple conductors are arranged concentrically around a central insulating core. This coaxial arrangement offers distinct advantages over standard thermocouple designs.

The primary benefit of a koaksiaalilämpöparianturi is its inherent shielding. The outer conductor of the coaxial cable acts as a shield, protecting the sensitive thermocouple wires from external electromagnetic interference (EMI). This makes it particularly well-suited for use in environments with high levels of electrical noise, such as industrial settings, near high-power machinery, or in applications involving radio frequency (RF) sources. By minimizing interference, the coaxial design ensures more accurate and stable temperature readings.

Another advantage is its robust construction and smaller form factor compared to some shielded thermocouples. The integrated design can simplify wiring and installation, and the compact nature allows for measurement in tight spaces. The outer conductor can also serve as a ground connection, which is sometimes required for specific instrumentation or safety reasons. Koaksiaalilämpöparianturit are constructed using various thermocouple types (e.g., Type K, J, T) to cover a wide range of temperature measurement needs, from cryogenic to high-temperature applications.