Design for the Communication Part of the Multi ― Sublayer Sample Tester

摘要

The acquirement of the real liquid and the pressure graph of the stratum in the oil well play an important role in the finding out the dynamic actuality of the working well and the drawing of the pressure graph. Multi ― Sublayer Sample Tester (MSST) can sample, measure pressure and draw the pressure graph by the computer. The communication part is an important part of the MSST. The function, characteristic and design scheme of the communication part and the used VMOS and MAX202 chip are introduced in the paper.