There are slight differences between a barometric pressure transducer and a digital barometer? Barometric pressure transducers work to convert pressure into an electric signal. Digital Barometers measure and display atmospheric barometric pressure as a digital reading on a screen or another interface.
There are many uses for a digital barometer. They can be used with aircrafts to measure altitude and air pressure, measure air speed at construction sites to ensure worker safety and in marine applications to measure barometic pressure when navigating ships. Digital barometers can even be used in sports such as mountaineering and sailing to measure barometric pressure for safety reasons.
Digital barometers have a thin diaphragm exposed to the atmosphere. As the pressure changes, the diaphragm will change as a response. This will cause a change either with the capacitance or resistance of a component within the circuit, which becomes an electircal signal. The signal is processed by the barometer, then calculated and a result is displayed.