A thermocouple is a sensor used to measure temperature – made up of two wires, each made from different metals.
These wires are welded together at one end to form a tip called a junction. This is where the temperature is measured.
When the junction detects a temperature change, milli-voltage is created.
This signal is then calculated by a temperature controller to give an accurate reading.
They’re an essential piece of equipment in many different industries, but what exactly can they be used for?
Here’s everything you need to know.
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Why should I use a J-type thermocouple?
Due to their wide temperature range, J-type thermocouples are some of the most popular on the market.
They’re made from nickel/copper alloy, able to accurately measure temperatures between 0◦C and 816◦C, and are much more affordable than their K-type counterparts.
They have a lot of wiggle room for customisation, making them ideal for all sorts of applications.
What can they be used for?
Thanks to their impressive temperature range, J-type thermocouples are the ideal solution for many industries. They have countless different uses, including:
● Medical applications
There are various uses for J-type thermocouples in the medical industry, the most common being within the thermometer – helping hospital and doctor’s surgery staff to take their patient’s temperature quickly and accurately.
They’re also ideal for use in other pieces of medical equipment, like MRI and portable ultrasound scanners.
● Oil mining
This one may be surprising, but J-type thermocouples are an essential piece of equipment in oil mining industries to ensure safe and effective practices.
Typically, the ends of oil drills are fitted with one of these temperature sensors. It notifies workers quickly when the temperature gets too hot, warning them when they should stop drilling – since the further it gets through the ground without pausing, it can become too hot and break.
Typically, the ends of oil drills are fitted with one of these temperature sensorsthe ends of oil drills are fitted with one of these temperature sensors. It notifies workers quickly when the temperature gets too hot, warning them when they should stop drilling – since the further it gets through the ground without pausing, it can become too hot and break.
● Food production
J-type thermocouples can have multiple functions in the food production industry, from clean-in-place sensors and penetration probes to oven control and food chain monitoring.
Also, according to The Gas Safety (Installation and Use) Regulations 1998, all commercial catering equipment should be fitted with a flame supervision device (AKA, a thermocouple) so that the gas supply will cut out if the flame is extinguished.
Purchase J-type thermocouples online
Not quite sure if J-type thermocouples are right for your project?
Be sure to get in touch with a specialist in your area, like Cartridge Heaters, for expert advice and recommendations – they’d be more than happy to help.
Why not order online, and have J-type thermocouples delivered directly to your door?
Remember, always purchase temperature-sensing products from a supplier you know you can trust, so you can be confident in their quality.