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All around you there will be thermocouples secretly working. It is likely that you will have walked past numerous thermocouples already today, and you might even be near one right now. But what are thermocouples and how do they work?

Put in the very simplest way possible; a thermocouple is a sensor that is used to measure temperature. It produces a small unique voltage at a given temperature which can then be measured and interpreted by a thermocouple thermometer. They are used for a measurement and control purposes, widely used in science and the manufacturing industry.

Thermocouple thermometers are used for temperature measurement in kilns, diesel engines, [url=http://www.mnfruit.com/louboutinpascher.php]louboutin[/url] ovens and industrial processes. Thermocouples benefit from being inexpensive, interchangeable, and are supplied with standard connectors.

Thermocouples work because of the thermoelectric effect, which is when a conductor generates a voltage when subjected to a thermal gradient. [url=http://www.mxitcms.com/abercrombie/]abercrombie[/url] This [url=http://www.mxitcms.com/abercrombie/]abercrombie milano[/url] is [url=http://www.moncleroutletosterblade.com]moncler[/url] achieved by using a combination of two different metals to produce the voltage. The combination of the two different metals is not a constant; there are actually a variety of different thermocouple varieties [url=http://www.rtnagel.com/louboutin.php]louboutin pas cher[/url] available that use a number of different combinations of metals and calibrations.

A thermocouple can be calibrated in a number of different ways, but there are four which are [url=http://www.mnfruit.com/airjordan.php]jordan[/url] more common than others. These most common calibrations are referred to as calibration J, K, T and E. Each one has a different temperature range and environment that it is useful for. The maximum temperature which a thermocouple will measure can be increased by making the wire thicker.

When buying a thermocouple, as with most products, it is best to follow a set of guidelines to [url=http://www.gotprintsigns.com/abercrombiepascher/‎]abercrombie soldes[/url] ensure you buy one to suit your needs. The [url=http://www.mnfruit.com/airjordan.php]jordan pas cher[/url] first thing that you will want to do when selecting a thermocouple to use is to check the temperate range that it covers. The chemical resistance and sheath material, as well as the abrasion and vibration resistance, [url=http://www.jeremyparendt.com/jimmy-choo.php]jimmy choo chaussures[/url] are factors which should be considered. You may also want to make sure that [url=http://www.sandvikfw.net/shopuk.php]hollister outlet sale[/url] you are aware of what installation requirements the thermocouple has, as it may be required to be compatible with existing equipment for example.

The type of thermocouple is also key. The three main sub-categories are Grounded, Ungrounded and Exposed thermocouples.

A Grounded thermocouple has the wires physically attached to the inside of the probe wall which can help with the direct [url=http://www.lcdmo.com/hollister.php]hollister france[/url] reading of temperatures. An Ungrounded thermocouple is separate from the probe wall, which offers the benefit of electrical [url=http://www.jeremyparendt.com/Hollister-b5.php]hollister[/url] isolation. An Exposed thermocouple protrudes out of the tip or the sheath and is therefore exposed to all of the surrounding environment.

The metal combination and calibration can be chosen to suit your needs. Various different thermocouples will offer better or more accurate readings but only in certain conditions. Therefore sometimes it may be required to sacrifice response time or speed of reading due to the requirements of the environment in which you are measuring in.
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