Bimetallic strip as a thermometer in an oven

Bimetallic strip as a thermometer in an oven

Bulb thermometers are good for measuring temperature accurately, but they are harder to use when the goal is to control the temperature. The bimetallic strip thermometer, because it is made of metal, is good at controlling things.
The principle behind a bimetallic strip thermometer relies on the fact that different metals expand at different rates as they warm up. By bonding two different metals together, you can make a simple electric controller that can withstand fairly high temperatures. This sort of controller is often found in ovens.

In this diagram, the green metal would be chosen to expand faster than the blue metal if the device were being used in an oven. This causes the strip to bend upward, making contact so that current can flow. By adjusting the size of the gap between the strip and the contact, you control the temperature.

By: Vanessa Low

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Assignment Details

Task: Choose from the following Examples of bimetallic strips being used in everyday life Videos of bimetallic strips in action Websites with any information on bimetallic strips Any other resources related to bimetallic… Continue reading

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Give your post a simple title. Add the link to the video or website (if necessary) Explain briefly what you are sharing and what your classmates should look out for. Sign off with… Continue reading