Remote field testing (RFT) is an electromagnetic method of nondestructive testing whose main application is finding defects in steel pipes and tubes. RFT may also referred to as RFEC (remote field eddy current) or RFET (remote field electromagnetic technique). An RFT probe is moved down the inside of a pipe and is able to detect inside and outside defects with approximately equal sensitivity (although it can not discriminate between the two). Although RFT works in nonferromagnetic materials such as copper and brass, its sister technology eddy-current testing is more effective in these materials. sfsd
The basic RFT probe consists of an exciter coil (also known as a transmit or send coil) which sends a signal to the detector (or receive coil). The exciter coil is pumped with an AC current and emits a magnetic field. The field travels outwards from the exciter coil, through the pipe wall, and along the pipe. The detector is placed inside the pipe two to three pipe diameters away from the exciter and detects the magnetic field that has travelled back in from the outside of the pipe wall (for a total of two through-wall transits). In areas of metal loss, the field arrives at the detector with a faster travel time (greater phase) and greater signal strength (amplitude) due to the reduced path through the steel. Hence the dominant mechanism of RFT is through-transmission
Commonly applied to examination of boilers, heat exchangers, cast iron pipes, and pipelines.
No need for direct contact with the pipe wall.
Probe travel speed around 30 cm/s (1 foot per second), usually slower in pipes greater than 3 inch diameter.
Less sensitive to probe wobble than conventional eddy current testing (its sister technology for nonferromagnetic materials)
The field travels on the outside of the pipe, RFT shows reduced accuracy and sensitivity at conductive and magnetic objects on or near the outside of the pipe, such as attachments or tube support plates.
Two coils generally create two signals from one small defect - a headache for the analyst.
Year of Establishment1980
Legal Status of FirmPrivate Limited Company
Nature of BusinessService Provider
Number of Employees101 to 500 People
Annual TurnoverRs. 100 - 500 Crore
IndiaMART Member SinceOct 2011
Industrial X-Ray & Allied Radiographers (I) Pvt. Ltd. commonly known as IXAR was founded in 1969 and started its activities in a humble way in the field of Radiography, one of the Non Destructive Testing methods.
The hard work, sincerity and dedication put together have brought her to its present standing with the inclusion of all the NDT test methods under her wing. This includes test methods like Ultrasonic, Magnetic particle, Liquid Penetrant, Eddy current etc.
There is not a single project of typical nature in India for which IXAR has not worked and thus vast experience gained, is the base for its full confidence to undertake any challenging job irrespective of size and technical complexities.
26th January 1985 was the land mark day for the company when the office was shifted to a new building admeasuring 5000sq.ft floor space.