| 摘要 |
PROBLEM TO BE SOLVED: To provide a device that performs digital magnetic detection detecting magnetic matters (mainly unexploded shells) in the vicinity of ferromagnetic materials (steel sheet pile, H-type steel, steel pipe pile, PC pile and the like), and performs digital processing and analysis of magnetic data on a multicomponent with three probes (detection coils). ! SOLUTION: An uniaxial differential magnetic sensor A has three (S1, S2, S3) sensors installed on the same line and transmits individual pieces of magnetic data to an amplification control device (control device) B through connection cables, and differential data is created in the B and then transmitted to an A/D converter D to be converted into digital signals. The uniaxial differential magnetic sensor A causes the digital signals to be subjected to analysis processing on a PC by using an analysis processing system to create magnetic recording, and after the creation of the recording, processes the amplitude, period, shape and the like of |
