As explained in Instructables’ article, “What is a Temperature Sensor?,” analog temperature sensors are an efficient and cost-effective way to measure ambient temperature. Unlike traditional thermometers that rely on mercury or bimetallic strips, analog sensors use solid-state technology to determine temperature through voltage changes in diodes. These sensors amplify the voltage change between a transistor’s base and emitter (Vbe), generating a signal directly proportional to the temperature.
The advantages of analog temperature sensors include their precision, durability, and consistency. With no moving parts, they are low-maintenance, do not require calibration, and perform reliably under various environmental conditions. Models like the TMP36 stand out for their wide temperature range (-40°C to 150°C) and compatibility with standard voltage systems, making them ideal for diverse applications.
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Article with all rights reserved, courtesy of Instructables.com.