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Sperry Rail Service (reporting mark SRSX) is a rail inspection company founded in 1928 by Elmer Ambrose Sperry. [1] The company was the first in the world to offer nondestructive testing of railroad tracks. Since its formation, Sperry has been contracted by most of the major railroads in North America to inspect rail. To accomplish this task ...
This most likely will be done with laser-optical transmitting transducers in ultrasonic testing. Eliminating contact with the rail could one day allow high-speed detection of flaws. (Testing of rail is currently able to be done at 80 km per hour with a Speno US-6 Ultrasonics train) Another need for the future is a complete rail inspection system.
Speno rail grinding train in Germany. Speno International SA is a manufacturer of railway track maintenance machines. The Speno company was founded by Frank Speno in 1960 and is now headquartered in Switzerland. It operates maintenance trains in many countries. The Speno trains are bright yellow in color.
A track geometry car (also known as a track recording car) is an automated track inspection vehicle on a rail transport system used to test several parameters of the track geometry without obstructing normal railroad operations. Some of the parameters generally measured include position, curvature, alignment of the track, smoothness, and the ...
Ultrasonic testing (UT) is a family of non-destructive testing techniques based on the propagation of ultrasonic waves in the object or material tested. In most common UT applications, very short ultrasonic pulse waves with centre frequencies ranging from 0.1-15 MHz and occasionally up to 50 MHz, are transmitted into materials to detect ...
South Coast Rail's start will have to wait until safety testing has been fully completed.
There are also some applications for inspecting rail tracks, rods and metal plate structures. Although guided wave testing is also commonly known as guided wave ultrasonic testing (GWUT) or ultrasonic guided waves (UGWs) or long range ultrasonic testing (LRUT), it is fundamentally very different from conventional ultrasonic testing.
Nordco purchased Illinois railroad maintenance machinery rebuilder J.E.R. Overhaul in 2006, followed by Connecticut based non-destructive testing company Dapco Industries in 2007. [5] Both of the headquarters of these companies now serve as additional manufacturing facilities for Nordco.
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