MagSys: A Portable Giant Magneto-Impedance based Magnetic Sensing Device for NDE Applications

1.

Title of Product/Design/Equipment.

MagSys: A Portable Giant Magneto-Impedance based Magnetic Sensing Device for NDE Applications

Giant Magneto-Impedance

2.

IPR Status

Patent/Abroad IPR Details

Patent Application No: 0651/DEL/2011

3.

Application/Uses

Sensors for NDE

4.

Salient Technical Feature including Competing Feature

MagSys is a portable magnetic sensing device where nanostructured Fe-Co based magnetic wires of diameter 80-120 micron prepared by in-rotating water quenching technique is used as a core material in the probe-head.The magnetic wire material exhibit Giant Magneto-Impedance (GMI) properties. The output signal of the sensor is proportional to the magnetic field generated by the test object. If there is change in composition, microstructure or residual stress of the test object due to in-service operation, the magnetic properties also change and hence the output signal of the sensor.

Operating frequency ranging between 250 kHz and 1 MHZ ; Power Requirement: rechargeable 5V battery with 4 hours back­up time; Weight: 2Kg; Control, Display and Analysis: External laptop/notebook/ personal computer

5.

Level/Scale of Development

Portable Laboratory based device and scope for automation for in-service operation

6.

Environmental Consideration

Not applicable

7.

Status of Commercialization

Ready for commercialisation

8.

Major Raw Material to be Utilized

Nanostructured wire for core materials that can be prepared at CSIR- NML by in-rotating water quenching apparatus. Raw materials for wire are Co, Fe,Cr,Si,B. Raw materials for electronics circuit are Resistance, Capacitors and ICs

9.

Major Raw Plant Equipment and Machinery Required

Sensing probe, ac power source, amplifier, data acquisition & analysis system

10.

Techno-Economics

Cost: Rs. 15 Lakh/unit Including sensor

11.

Technology Package

a) Details of equipment, (b) Operating Manual and (c) Quality Assurance Methods. Nanostructured GMI wire to be supplied by NML along with the technology package