Chain Test: (www.chaintest.com)

The idea was to develop a robotic crawling vehicle for testing the chains in situ below water. The vehicle would be automated, and sensitive to fatigue cracks, corrosion, bent chains and abrasion.

A software system was designed and developed in order to control robotic crawler motion and integrate various NDT inspection techniques using one easy to use control panel. Software was capable of displaying real time data from different NDT instruments as well as crawling vehicle position and status. Anti-collision algorithms were developed in order to avoid collision among different axis of crawling vehicle.

Saferay: (www.saferay.co.uk)

The objective of the Saferay project was to develop digital radiographic techniques and hardware for the inspection of safety critical welds and castings.

A software system was designed and developed in order to control 7 axis controller. Challenge was to control the real time X-Ray system performing automatic calibration, self warm-up according to set procedures, fire X-Rays at certain voltages and get resulting data to analyse the defects in the specimen.

FreeScan:

FreeScan is a 3D position tracking device. 

FreeScan enables the user to make a freehand scan with almost any type of sensor connected to an instrument which provides an Analogue (or suitable Digital) output of the to-be-measured feature, for instance:

• Ultrasonic Signal Amplitude

• Ultrasonic Time-of flight

• Eddy Current Signal Amplitude etc.

The device is also designed to operate with all kind of NDT inspection devices. FreeScan is unique as it can acquire and display data in three dimensions and this can be simplified to any two orthogonal dimensions within the software.

With no scanning arms, cables, rods or bulky transmitters connected to the probe it is very simple to use and is very user friendly in set-up

Slew Monitor:

Research was started to develop Ultrasonic Inspection device capable of inspecting ball bearing on the cranes. A realtime amplitude based system was designed and developed using ultrasonic technology which was able to acquire and display real time sound data according to defined rate. Proximity Sensor was combined in order to do size the cracks and defects automatically.

RFID based tracking system:

Radio frequency identification technique was employed in real time personnel tracking system. Active RFID tags were used in order to emit periodic radio signals. Using signal amplitude, the location of person was determined on a map on computer screen. Triangulation algorithms were implemented in order to calculate the real time position.