Model JD-5W Electromagnetic Log
Gao Qixiao Gao Jingdong
This paper discribes the basic principle of operation, configuration and program design of Model JD-SW electromagnetic log, in which microprocessor is used. This apparatus is simple in construction, accurate in calculation and transmission, and diversiform in interface. Owing to the fact, that its calibration, data processing and error correction are automatized, the difficulty in velocity calibration for log becomes easy now.