0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why are thermometers calibrated?
So that you know that they show the true value, and that the results collected with one thermometer can be compared with the result collected from another thermometer.
Why does the liquid in a thermometer move?
It doesn't 'move' exactly, it expands. Originally mercury (a metal in a liquid state at room temperature) was used in thermometers; as the the temperature increases the mercury (or other liquid) expands, taking up more of the volume within the thermometer, causing the level to rise. Thermometers are calibrated to allow the temperature to be measured based on how much expansion has taken place.
What is the difference between clinical and lab thermometer?
Mmmm you will know very quickly if asked to touch your toes while the thermometer is inserted - the difference will become quite plain! Clinical thermometers are calibrated to temepratures around that with which life revolves - there is no use having 100 degrees C on a clinical thermometer as you would be quite dead (and bubbling!) if you got that hot! Lab thermometers can look like Clinical thermometers - but can also be much larger, made of metal or glass or plastic, electronic, infrared, coated (teflon etc), and can have scales going up to many hundreds of degrees C (and down well below zero too).
How are mercury thermometers used today?
Mercury thermometers are rarely used, except in lab thermometers. For human use, they have been replaced by dyed alcohol glass thermometers, or electronic digital thermometers.
What is the differences between a clinical thermometer and a laboratory thermometer?
Clinical thermometers are made to be used in a hospital to accurately determine body temperature. They are often digital. Lab thermometers are made of metal or glass and usually don't give you an accurate reading as much as a "ball park." A clinical thermometer may have mercury but lab thermometers usually have alcohol .
What are thermometers measured in?
Thermometers may be calibrated in degrees Fahrenheit or degrees Celsius.
For thermometers to read temperature correctly they must be?
Calibrated
what is data logger?
Temperature is measured with thermometers that may be calibrated to a variety of temperature scales
How are homemade thermometers different from commercial versions?
The homemade ones have not been calibrated while the commerical ones have been.
What where the first thermometers?
Mecury thermometers
Can use medical electronic thermometer to measure air temperature?
Most medical electronic thermometers are not calibrated to measure ambient temperatures.
Why are thermometers calibrated?
So that you know that they show the true value, and that the results collected with one thermometer can be compared with the result collected from another thermometer.
Why are thermometers made with alcohol instead of water?
thermometers are made out of mercury and alcohol because mercury expands when it is heated
How is the Celsius scale calibrated?
Generally thermometers are calibrated two ways . primary calibration or Secondary calibration. In secondary calibration , two thermometers are kept side by side under same conditions and identify the difference with respect to one thermometer. In primary calibration , thermometer that to be calibrated is placed in a ice cubes made of pure distilled water . Now pour some distilled water and stirr well . Now place thermometer inside that mixture This will give the Melting point temperature of pure water 0 degree centigrade. Now see the reading on thermometer and adjust reading. This way of calibrating a thermometer is accurate enough form most applications.
Why can't a laboratory thermometer be used to measure the temperature of volcanic lava?
It would melt. The temperature of lava (molten rock) is as hot as liquid metal, and lab thermometers are typically metal and glass. Thermometers made from ceramic might survive, but they are not calibrated for that high a temperature, which is typically 700 to 1,200 °C (1,292 to 2,192 °F). Lava temperatures are usually measured indirectly at a distance of at least a few meters away, using the passive thermometers found in industrial blast furnaces.
Who made water thermometers?
Charles Winger invented them.
What are modern thermometers made of?
Modern thermometers are typically made of materials such as glass, plastic, or metal. The most common type of modern thermometer is the digital thermometer, which includes a temperature sensor and a digital display screen. Other types of modern thermometers may contain mercury or alcohol as the temperature-sensitive material.
