What is mechanical thermometer?
Mechanical thermometers can be constructed which use liquids, solids, or even gases as the temperature-sensitive material. The mechanical motion is read on a physical scale to infer the temperature. The examples include: Liquid-in-glass thermometer.
How does a mechanical thermometer work?
It’s made up of two different metals bonded together, which expand by different amounts as they heat up. As the temperature changes, the bimetallic strip curves more or less tightly (contracts or expands) and the pointer, attached to it, moves up or down the scale.
What can be used for mechanical temperature measurement?
Mechanical Temperature Measuring Instruments
- Bimetal thermometers.
- Gas-actuated thermometers.
- Special gas-actuated thermometers.
What is temperature in mechanical engineering?
Temperature is a measure of the average kinetic energy of a system.
What is a scientific thermometer?
A thermometer is a device used for measuring temperature. Most scientific fields measure temperature using the Celsius scale. Zero degrees Celsius is the freezing point of water, and 100 degrees Celsius is the boiling point of water.
How do infrared thermometers work?
Infrared thermometers employ a lens to focus the infrared light emitting from the object onto a detector known as a thermopile. The thermopile is nothing but thermocouples connected in series or parallel. When the infrared radiation falls on the thermopile surface, it gets absorbed and converts into heat.
What are dial thermometers used for?
A thermometer is an instrument designed to measure and indicate the temperature of a specific application or condition. A Dial Thermometer (filled system thermometer) can either be read at the point of measurement or from a remote location using a desired length of capillary tubing.
What are the different types of temperature sensors?
There are four types of temperature sensors that are most commonly used in modern-day electronics: thermocouples, RTDs (resistance temperature detectors), thermistors, and semiconductor based integrated circuits (IC).
What is that silver stuff in a thermometer?
Identification. You can identify the liquid in a thermometer based on its color. Silver liquid indicates that the thermometer contains mercury, while red liquid is alcohol to which red coloring has been added. Although uncommon in modern thermometers, a clear color indicates water.