Long before our engineers postponed the limits of technology and constantly improve this measurement instrument What is the Digital thermometer, the members of the Accademia del Cimento de Florence invented the Galileo thermometer. This thermometer is based on the Archimedes And is today a real decorative object. THE Experts in measuring devices could not miss the Bulle thermometer In their guide ...
What is a Bulle thermometer ? 📖
There is no more beautiful way to read the temperature than on a Bulle thermometer. Unlike Mercury thermometer, which works thanks to the expansion of the mercury, the Galileo thermometer is much more complex.
This Bulle thermometer Measure room temperature of a room. It consists of a sealed glass column containing a transparent liquid, often mineral oil, as well as puffed glass spheres filled with colored liquid. These spheres are weighted by a metal medallion indicating a temperature value in degrees Celsius Or Fahrenheit. Depending on the temperature, they go up or down.
How does the Bulle thermometer ? ⚙️
THE Galileo thermometer works thanks to the Archimedes, a principle that determines the buoyancy of an object in a liquid:
- If the density of the object is greater than that of the liquid, it flows.
- If it is lower, it goes up.
- If the densities are equal, it floats.
Each sphere with a specific density, the temperature can be determined by observing the position of the lowest ball among those floating.
The experience of experts with the Bulle thermometer ⚗️
To understand the functioning of Bulle thermometer, make this experience:
Take a Galileo thermometer And place a container of blue water in blue, in which you immerse the probe of a electronic thermometer. Place these instruments in a room at low temperature (18 ° C), then gradually increase the temperature.
You will then observe the spheres go up and down according to the Displayed temperature On the screen of Digital thermometer.
Other types of thermometers
THE Bulle thermometer is neither precise nor fast and is not suitable for external temperature measurement. There are many Types of thermometers Suitable for each use:
- Electronic thermometer : fast and precise.
- Mechanical thermometer : Without battery, ideal for certain applications.
- IR thermometer : Remote measurement by infrared.
- Gallium thermometer : Mercury alternative.
- Thermometer with probe : used for various professional applications.
- Multifunction thermometer : versatile for several uses.
Each field has specific needs in terms of temperature measurement. Whether you are a scientist, pizzaïolo or agronomist engineer, the choice of thermometer suitable is essential.
