ROTARY MAGNETIC DRUM DEVICE AND METHOD FOR MEASURING RESISTANCE VALUE OF MAGNETO-RESISTANCE ELEMENT HEAD OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a rotary magnetic drum device capable of easily and surely controlling the film thickness of a magneto-resistance element head, and a method for measuring the resistance value of the magneto-resistance element head of the same. SOLUTION: This rotary magnetic drum device 10 for reproducing the information of a tape-like information recording medium TP is provided with a fixed body 1, and a rotary body 2 having a magneto-resistance element head 20 rotated with respect to the fixed body 1 to reproduce information. The rotary body 2 is provided with a resistance value measuring section 100 for measuring the resistance value of the magneto-resistance element head 20, and a conversion section 150 for transmitting the resistance value of the magneto resistance element head 20 obtained by the resistance value measuring section 100 as data to the outside.