Overview of Thermometers and Their Types
Thermometers are devices used to measure temperature, and there are various types available. Glass-liquid thermometers feature a mercury-in-glass bulb for sensing temperature, while infrared thermometers measure body temperature through infrared radiation. Thermocouple thermometers use electrical conduction to determine temperature. Each type serves specific purposes and has unique features. Images provided illustrate the different types of thermometers discussed.
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Presentation Transcript
Thermometer A thermometer is a device that measure temperature. Types of thermometers: 1. Glass-liquid thermometer This type has two main parts: 1. the sensor part which is the bulb of mercury-in-glass. 2. the visible scale to read temperature.
Infrared thermometer which measure the temperature of infrared radiation that is radiated from body.
3. Thermocouple thermometer: A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming electrical junctions at different temperatures. A thermocouple produces a temperature-dependent voltage (potential difference), and this variation in voltage can be interpreted to measure temperature.
