Thermocouple as a Transducer - SlideShare.
A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction.A thermocouple produces a temperature-dependent voltage as a result of the thermoelectric effect, and this voltage can be interpreted to measure temperature.Thermocouples are a widely used type of temperature sensor. Commercial thermocouples are inexpensive, interchangeable.Overview: The Thermocouple is a thermoelectric temperature sensor which consists of two dissimilar metallic wires, e.g., one chromel and one constantan, coupled at the probe tip (measurement junction) and extended to the reference (known temperature) junction. The temperature difference between the probe tip and the reference junction is detected by measuring the change in voltage.Thermocouples - types, principles and temperature ranges Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! - the most efficient way to navigate the Engineering ToolBox!
The positive element of the type K thermocouple alloy the negative being T2. The thermocouple can be used up to 1250C in oxidising atmospheres and is the probably the most common in use. It is also the positive element of the type E thermocouple with Constantan as the negative; the thermoelectric power of type E thermocouples is the highest amongst all standard couples.Thermocouple Type Composition Temperature Range C K Chromel Alumel 95 1260 J from MSE 321 at Simon Fraser University.
The most basic thermocouple construction is the wire type consist-ing of two dissimilar metals homogeneously joined at one end to form the measuring junction. All wire-type thermocouples have an exposed junction. While wire-type thermocouples offer good response time, ruggedness, and high temperature use, they are.
