ACFM Crack Microgauge Model U12

 

TSC’s Alternating Current Field Measurement (ACFM) method is now acknowledged worldwide as a major advance in crack detection and sizing technology. The Model U12 ACFM Crack Microgauge has been introduced to extend the capability of the ACFM Crack Microgauge range of instruments to include the use of ACFM array probes.

The ACFM method is an electromagnetic inspection method which can be used for the detection and sizing of surface breaking cracks in metal components. The technique works on both ferritic and non-magnetic materials and does not require the removal of paint coatings or surface corrosion. ACFM is used worldwide in a range of industries including Offshore Oil & Gas, Petrochemical, Power Generation, Aerospace and Nuclear applications. ACFM provides many benefits over conventional inspection methods, particularly for weld inspection.

ACFM array probes contain a large number of ACFM sensors in a single probe head. If produced as a 2-Dimensional array, this allows an area of the component to be inspected with the probe statically placed on the surface. If produced as a 1-Dimensional array, this can be scanned across the surface to achieve a scan of the area covered. ACFM arrays therefore provide the opportunity for inspecting larger areas for each probe deployment, than can be achieved by manual scanning. In addition, ACFM array probes can be fitted with multi directional fields to provide detection of defects in any orientation. The standard ACFM data displays are maintained for ACFM arrays and thereby require minimum additional training over and above the manual ACFM system operations.

Model U12 Crack Microgauge

The Model U12 instrument can be configured to suit a variety of array probe applications, as well as supporting manual ACFM. The instrument is mains powered and supplied in an IP54 sealed case. It is controlled by a laptop PC (rugged and semi rugged laptops can be supplied as part of the system if required) which also provides all data storage. The instrument can be supplied to accept either 1-Dimensional or 2-Dimensional ACFM arrays; scanned 1-Dimensional arrays can also be provided with position encoders to allow faster analysis of any defects found, in terms of both length and depth. The Model U12 instrument can accommodate a maximum of 3 array probe inputs plus a manual probe input.

Probes are produced to suit particular applications. Maximum cable length 20 m. Probes can be produced to work in a range of environments and have been produced for use in air, underwater, corrosive and irradiated environments.

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