Different Parts of a Mercury Thermometer
The Bulb. A swelling, or bulb, at the bottom of the thermometer stores the mercury used in calculating temperature readings. The Stem and Capillary Bore. Magnified glass makes up the outside jacket of the thermometer, which is called the stem. Expansion Chamber. Contraction Chamber.
What are the three parts of thermometer?
Thermometers consist of three basic elements: spirit-filled liquid, which responds to changes in heat and cold; a glass tube to house the temperature-measuring liquid; and black ink to color in the engraved scale marks with legible numbers.
What are the parts and functions of thermometer?
A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and (2) some means of converting this change into a numerical value (e.g. the visible scale
What are the 4 types of thermometers?
There are different types, but not all thermometers are right for your child.
Digital thermometers. Ear (or tympanic) thermometers. Infared thermometers. Strip-type thermometers. Mercury thermometers.
What are the parts of a digital thermometer?
There are several parts that make up a digital thermometer, these include the probe cap, probe tip, probe, power button, hold button, unit change button and the screen display.
What is stem in laboratory thermometer?
It is used to measure the temperatures in school or other laboratories for scientific purpose as they measure temperatures to a range higher than clinical thermometers. It has a long stem with a silver bulb at the end unlike clinical thermometer.
What is the red part of a thermometer called?
The red liquid is Alcohol, usually Ethanol with a small amount of red dye added. Alcohol is used extensively as a thermometer liquid (similar to Mercury thermometers), esp.
What is expansion chamber in thermometer?
An expansion chamber is provided at the end of LiG thermometers, and is used to prevent the buildup of pressure if the temperature of the liquid rises past the top of the scale. Again, the volume of this chamber is carefully designed to contain a certain volume of liquid.
What is capillary tube in thermometer?
CTT-01: A capillary tube is used in the thermometer to indicate the temperature scale. When the temperature changes, the measuring liquid column moves up and down within the capillary hole. Usually the scale of the thermometer is located on the capillary tube.
What is the function of the part of clinical thermometer?
Draw a labelled neat diagram of a clinical thermometer showing the range of temperature marked on it. Solution : Doctors use a special thermometer called the clinical thermometer for measuring the temperature of the patient’s body. This thermometer has markings from 35掳c to 43掳c.
What is thermometer function?
A thermometer is a device used for measuring temperature. It can measure the temperature of a solid such as food, a liquid such as water, or a gas such as air. The three most common units of measurement for temperature are Celsius, Fahrenheit, and kelvin.
What is the shape of thermometer?
Explanation: Thermometer is purposely shaped into a Prism so that when you hold the thermometer with the reading scale on your reading side. Then the light entering the prism should be reflected towards its base thereby allowing the Mercury inside it to shine and easy to see.
What are the six types of thermometer?
The different types of medical thermometers
Digital thermometer. Digital thermometers work by using heat sensors that determine body temperature. Oral thermometer. Digital ear (tympanic) thermometer. Forehead (temporal) thermometer. App-based thermometer. Pacifier thermometer. Mercury (liquid in glass) thermometer.
What are the two main types of thermometer?
Answer: two types of thermometers, namely, clinical thermometer and laboratory thermometer. Clinical thermometers are meant for clinical purposes. It is developed for measuring the human body temperature.
How many thermometers are there?
Three types of thermometers are alcohol, liquid crystal, and infrared radiation (pyrometer). The three main temperature scales are Celsius, Fahrenheit, and Kelvin.
What is metal in digital thermometer?
Mercury is a metal which exists in liquid form at room temperature . It is a shiny liquid metal with a high coefficient of expansion. It also has a high boiling point which is suitable for measurement of higher temperatures. Therefore, mercury is the metal used in the bulb of the thermometer.
What is thermometer tip made of?
Tip of thermometer is made up of metal because it has a high coefficient of expansion which makes it easy to move in the thermometers as per the temperatures. Mercury has a boiling point which makes it suitable to measure higher temperatures.
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