Design of High Precision Downhole Storage Electronic Pressure Gauge
In order to more accurately measure and obtain stratum pressure data, the high precision downhole storage electronic pressure gauge was researched.The electronic pressure gauge was composed of the downhole equipment and ground handling The former completed the borehole pressure and temperature collection and storage with ADuC834 MUC as the core.The latter achieved downhole data playback and processing The structure and the indicators of electronic pressure gauge was described.The hardware design and software design of this system were detailed, and the performance of pressure gauge was tested.Testing and field work showed that the instrument could achieve pressure accuracy within 0.05% in the range of -40℃~150℃ to meet the requirements of underground testing