PHASE AND AMPLITUDE MEASUREMENT FOR A DIELECTRIC PROPERTIES LOGGING SYSTEM

摘要

P METHOD AND DEVICE FOR MEASURING THE DIELECTRIC PROPERTIES OF LAND FORMATIONS CROSSED BY A SURVEY; THE LOGGING TOOL HAS A TRANSMITTER T SENDING AN ELECTROMAGNETIC ENERGY WAVE IN BORING 2, AND RECEIVERS R1, R2; R3, R4 LOCATED AT DIFFERENT DISTANCES FROM THE TRANSMITTER TO RECEIVE THE ELECTROMAGNETIC ENERGY WAVE; THE AMPLITUDE AND PHASE MEASUREMENT SIGNALS ARE RESPECTIVELY PROCESSED IN FIRST AND SECOND PROCESSING WAYS A1-A4; SEPARATE PH1-PH4 COMPRISING AN AMPLIFIER, THE FIRST CHANNEL AMPLIFIER HAVING HIGH GAIN STABILITY AND THE SECOND CHANNEL AMPLIFIER HAVING HIGH PHASE STABILITY. /P