What are the parts of a thermometer?

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 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.

What are the markings on a 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.

What is clinical thermometer with diagram?

: a thermometer for measuring body temperature that has a constriction in the tube above the bulb preventing movement of the column of liquid downward once it has reached its maximum temperature so that it continues to indicate the maximum temperature until the liquid is shaken back down into the bulb.

What are the components of 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 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 are the small lines on a thermometer?

These are called increments. Between these increments are little lines that stand for the smaller numbers. So, the first step is to look at the numbers and determine what increments the thermometer is using.

What is laboratory 7th 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. One such thermometer is known as the laboratory thermometer with a scale generally ranging from –10°C to 110°C.

What is the red mark in thermometer?

⇒The red mark on the clinical thermometer is set on the 37° mark. This is essentially because 37 ° and there about is the normal range of body temperatures for a healthy person.