Thermocouple Air Temperature Measurement

Applications include temperature measurement for kilns gas turbine exhaust diesel engines other industrial processes and fog machines.

Thermocouple air temperature measurement.

This is the cold or reference junction. A thermocouple is a sensor that is used for measuring temperature. Depending on the metal wires used a thermocouple is capable of measuring temperature in the range 200 c to 2500 c. The other junction is connected to a body of known temperature.

The thermocouple s accuracy is. The thermocouple is a very popular sensor to its relatively low cost interchangeability wide measuring range and reliability. U temperature compensated u use with standard thermocouple indicators and controllers the unique os36 infrared thermocouple combines low cost with the advantages of non contact temperature measurement. The 107 is a rugged accurate probe that measures temperature of air soil or water from 35 to 50 c.

It easily interfaces with most campbell scientific data loggers and can be used in a va. The emf generated is independent of wire length and diameter however noise can be a factor. A thermocouple is a simple robust and cost effective temperature sensor used in a wide range of temperature measurement processes. Thermocouples are the most economical elements for measuring temperature and also provide the highest ranges.

It consists of two different types of metals joined together at one end. It produces an output signal compatible with any standard j k t or e thermocouple instrumentation. Installthe junction looking upstream with the wires trailing downstreamalong the flow. When measuring air temperature isolate the thermocouple junction from thehardware that supports it.

When the junction of the two metals is heated or cooled a voltage is created that can be correlated back to the temperature. Thermocouples are not recommended for narrow spans or small temperature difference measurements. Thermocouples are manufactured in a variety of styles such as thermocouple probes thermocouple probes with connectors transition joint thermocouple probes. Typical thermocouple sensor hartke wikimedia commons public domain.

Thermocouples are suitable for measuring over a large temperature range from 270 up to 3000 c for a short time in inert atmosphere. All sensors are made to order so it is generally possible to meet all of your requirements. Generally speaking about 20 diameters must beexposed to the flow between the junction and the point of attachment. Therefore the thermocouple measures unknown temperature of the body with reference to the known temperature of the other body.