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How do temperature sensors work?

Sep 20th, 2022 at 09:15   Cars & Vehicles   Salford   6 views

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Location: Salford
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How do temperature sensors work?

How do temperature sensors work? They are devises to measure temperature readings through electrical signals. The Medical Temperature Sensor is made up of two metals, which generate electrical voltage or resistance once it notices a change in temperature. The temperature sensor plays a critical role in maintaining a specific temperature within any equipment used to make anything from medicine to beer. To produce these types of content, the accuracy and responsiveness of the temperature and temperature control are critical to ensuring the end product is perfect. Temperature is the most common physical measurement type in industrial applications. Accurate measurements are vital in ensuring the success of these processes. There are many applications that are not-so-obvious, which use temperature sensors. Melting chocolate, using a blast furnace, controlling a hot air balloon, freezing substances in a lab, running a motor vehicle, and firing a kiln.


The below contact temperature sensors:

A thermometer is generally what we think of when we think of temperature – particularly the mercury-filled glass tube. However, there are several types of thermometers available: Glass Thermometer: as above mercury/ ethanol glass tube. Ethanol is now the main liquid used in these thermometers.

Bi-Metal Thermometer: this thermometer type consists of a connected gauge and stem. The tip of the sensor has a spring that is attached to a rod, leading up to the gauge needle. The spring sits inside the stems sensing the end. When heat is applied to the sensing coil, movement in the coil is created which causes the needle in the gauge to move – thus displaying the temperature.

Gas-filled & Liquid Thermometer: These thermometers are similar in terms of how they work. There is a bulb either filled with gas or liquid. This is situated inside the sensing end of the probe. When heated, the gas expands/liquid heats up which signals the attached rod to move the needle to the temperature being measured.

Digital Thermometer: A digital thermometer uses a probe such as a thermocouple or a resistance temperature detector (RTD). The temperature is measured using the probe (sensing end) and displayed as a digital reading.

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