Definition: A device for converting an electrical signal into a usable direct current or voltage for measurement purposes.

Electrical transducers are the “middle man” between input and output devices, which is why they can be used to convert information from one form to another. For example, many types of sensors use electrical signals as their input and produce electrical transduction as their output so that data collected by them can be processed by computers. Using electronic transducers allows for this conversion between forms of energy without any mechanical contact, making it easier than ever before to monitor different conditions in the world around us.

There are two primary types of transducer: those that take an existing electrical signal as their input and those that create an electrically-based output. The first kind are usually sensors. Some examples of these are strain gauges, thermocouples, and mercury switches. These devices take in the input measurements from physical stimuli – usually something that changes based on environmental conditions- which then can be converted into voltage or current to be used by other devices. The second type, electrical generators, may use mechanical force as their input to create electricity as their output. For example, piezoelectric transducers work by converting physical pressure into an electric signal while magnetostrictive transducers use magnetism.

Electrical transducers are one of the most important technologies in science today because they allow us to convert energy easily between different forms (e.g., heat into electricity). This is important because it allows us to more easily and safely make sense of the world around us.

Transducer – Wikipedia
What is transducer? – Definition from
Transducer | Definition of Transducer by Merriam-Webster
Transducer | Define Transducer at
transducer – Wiktionary
transducer Meaning in the Cambridge English Dictionary