Temperature Glossary

Iron-constantan thermocouple, suitable for reducing atmospheres.

Thermocouple made of nickel-chromium and nickel-silicon alloys, the most widely used general-purpose temperature sensor.

A classic control algorithm that regulates a controlled object through proportional, integral, and derivative components.

A single-end heating tube is a tubular heating element with power leads exiting from one end. The heating wire connects to the power source inside the metal tube and loops back to the same end, resulting in a compact design ideal for installation in confined spaces. It is the primary heating component used in molds, injection molding machines, die-casting machines, and similar equipment.

A precision thermocompression bonding process that applies simultaneous heat and pressure via a heated hot bar to melt solder or cure conductive adhesive, reliably connecting flexible printed circuits (FPCs) and ribbon cables to PCBs or components.

Temperature control accuracy is the maximum fluctuation range between the controlled temperature and the setpoint once the system reaches a stable state. It reflects how "stable" the temperature control is, determined by sensor accuracy, control algorithms, heating methods, thermal inertia of the controlled object, and external disturbances.

Temperature accuracy refers to the maximum allowable deviation between the output of a temperature sensor (including transmitters or acquisition modules) and the actual temperature, reflecting measurement precision. It is determined by factors such as the sensor's tolerance class, transmitter accuracy, and cold junction compensation.

Electronic device for automatic temperature regulation, controlling heating or cooling units via algorithms such as PID.

A temperature sensor formed by welding two dissimilar metal conductors, generating thermoelectric voltage based on the Seebeck effect.

Infrared thermometry is a non-contact method for measuring surface temperature based on Planck's blackbody radiation law. It calculates temperature by detecting the infrared energy emitted from an object's surface, requiring no physical contact with the target.