This apparatus is used to measure the vertical acceleration of the axle.The left hand tube is a transducer which sends measurement signals to the computer.The right hand tube is used for calibration of the height of the striker plate above,relative to the

Tachometer sensor for measuring the speed of the coach. (Khalid Kagzi)

The feelers for measuring the gauge face are mounted below this frame.Note that they are at present in withdrawn condition.These feelers are rubber lined to prevent excessive wear and are fit for going through points and crossing without any need for with

The Track Recording Car of RDSO at Surat along with its own dedicated WAP4 loco. (Khalid Kagzi)

Operator's control and monitoring panel in RDSO Track Recording Car. (Khalid Kagzi)

Rigidly mounted frame which is fixed to the bogie.Sensors for gauge face variations are mounted at the rear part of the frame.The frame is elaborately constructed and rigidly mounted to minimise extraneous vibrations emanating from the bogie movement itse