Thermometers are available in several different shapes and sizes. Different thermometers have different ranges that allow them to measure different temperature ranges. You’ve probably heard of the common mercury thermometer. It uses the expansion of mercury metal to measure the temperature of a material. However, you may also have experienced a certain frustration when the mercury would simply not rise due to some issues with the thermometer. Mercury thermometers are designed mainly to measure positive temperatures up to a certain range. They cannot be used in scenarios where you may need to measure very high or low temperatures. This is due to the lower boiling point of mercury as well as the vulnerability of the glass material of the thermometer. In such cases, a industrial thermometer would be more suitable as it can measure higher temperatures than average mercury or electric thermometers.
The bi-metallic measurement instrument makes use of the expansion property of a metal to register a temperature change. Unlike mercury, it uses metals with high boiling points which allow it to register very high temperatures up to 400 degrees Celsius. This makes it very popular for practical applications such as measuring the temperature of boiling liquids. It is also widely used in college labs where mercury thermometers do not register an accurate reading. This thermometer can register a reading with an accuracy of about 2%. If you prefer your measurement to be more reliable, then the bi-metallic thermometer is a better option. Many industrial applications also make use of this thermometer as it can be placed in boiling materials without sustaining any damage. It is also more durable than average thermometers. This is due to the use of robust metals that are not brittle and can withstand high pressures as well.
So why can’t you simply use an advanced bimetallic thermometer in your experiments? Electric thermometers are effective in that they measure the temperature with preciseness. However, they are not able to withstand high temperatures. They are also more costly and need a power source to operate. Bi-metallic thermometers are much cheaper and easy to carry around. They also have the advantage of being much more durable than other thermometers. In addition to this, it is very easy to construct a bi-metallic thermometer using natural materials. This makes them a better option for everyday use. However, there are certain setbacks. Bi-metallic thermometers cannot measure temperatures over 400 degrees Celsius. They are also limited to positive temperatures and are not effective when used for measuring colder temperatures. However, they are still commonly used in labs due to their durability and cost. So, whether you are setting up a small industry or simply need a reliable thermometer for your experiments, the bi-metallic thermometer is a valuable asset.