# What is thermometer explain with diagram?

A thermometer measures temperature through a glass tube sealed with mercury that expands or contracts as the temperature rises or falls. … As temperatures rise, the mercury-filled bulb expands into the capillary tube. Its rate of expansion is calibrated on the glass scale.

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## In this way, how do you read a temperature thermometer?

Most thermometers have two scales for temperature, Fahrenheit and Celsius. Read the numbers for °F (degrees of Fahrenheit). Each long line is for 1°F temperature. The four shorter lines between each long line are for 0.2°F (two tenths) of a degree of temperature.

Simply so, how do you use a picture solution?

## 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.

## Is a temperature of 37.2 normal?

The average normal body temperature is generally accepted as 98.6°F (37°C). Some studies have shown that the “normal” body temperature can have a wide range, from 97°F (36.1°C) to 99°F (37.2°C). A temperature over 100.4°F (38°C) most often means you have a fever caused by an infection or illness.

## What are the 5 types of thermometer?

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 are the parts of a thermometer?

The main parts of a mercury thermometer are the capillary, the bulb, the scale, and the expansion chamber.

• Spherical Bulb. The bulb is the lowest part of the thermometer, which has a spherical shape. …
• Capillary Tube. …
• Expansion Chamber. …
• Scale Lines. …
• Safety Precautions.

## 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. …
• App-based thermometer. …
• Pacifier thermometer. …
• Mercury (liquid in glass) thermometer.

## What are the two parts of a 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 is maximum and minimum thermometer?

Six’s maximum and minimum thermometer is a registering thermometer that can record the maximum and minimum temperatures reached over a period of time, for example 24 hours. It is used to record the extremes of temperature at a location, for instance in meteorology and horticulture.

## What is stem in thermometer?

Magnified glass makes up the outside jacket of the thermometer, which is called the stem. A thin bore inside the stem gives mercury a route of travel as it expands and contracts. The thin bore is called a capillary. Magnified glass makes reading the mercury level easier.

## What temperature is a fever?

Despite the new research, doctors don’t consider you to have a fever until your temperature is at or above 100.4 F. But you can be sick if it’s lower than that.

## Why mercury is used in thermometer?

Mercury is the only one in liquid state at room temperature. It’s used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it’s used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.