Design of High Precision Digital Barometer

Barometer is a tool for measuring atmospheric pressure, digital barometer has the advantages of simple operation, high accuracy and so on.In this paper, the real-time pressure display is achieved by SCM(Single Chip Microcomputer) as a core component, combining with baroceptor, V/F converter, LCD display and other peripheral devices.The designed pressure gauge is from 30 hPa to 1050 hPa with a measurement accuracy of 0.1% and a display resolution of 0.01.It has the advantages of easy to carry, simple operation, high accuracy, with some referential significance for the design of similar measuring instruments.