Founded in 1854, O'Fallon's namesake comes from Colonel John O'Fallon who was a wealthy gentleman from St. Louis. In downtown O'Fallon, a Baltimore and Ohio Railroad railroad depot was built, which helped put O'Fallon on the map.
â¢ Transducers and sensors are physical devices that are used in electrical, electronic and many other types of gadgets and appliances. â¢ Transducers are used to convert one energy type into another while sensors measure energy levels and convert them into electrical signals that can be measured digitally.
So one way to define is that the output from a sensor may or may not be meaningful i.e most of the times it needs to be conditioned and converted into various other forms. The transducer output is always meaningful. The output of a motor is meaningful. The output of a loudspeaker is meaningful. They are transducers.