A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EVALUATING RAILWAY TIES
A method of evaluating railway ties for deterioration is mounted on a moving vehicle along the rails where the presence of the tie is detected and an impact energy source is used to create at least one wave in a surface of the tie which travels longitudinally along the tie. At positions spaced longitudinally from the source, the time of arrival of the wave is detected typically by a series of sensors responsive to air pressure changes to determine a speed of propagation of the wave in the tie and, in the event that the speed in said tie is below a predetermined speed, an output indication is provided regarding the deterioration of the tie, which can include a real time marking of the tie detected.
EVALUATING RAILWAY TIES
A method of evaluating railway ties for deterioration is mounted on a moving vehicle along the rails where the presence of the tie is detected and an impact energy source is used to create at least one wave in a surface of the tie which travels longitudinally along the tie. At positions spaced longitudinally from the source, the time of arrival of the wave is detected typically by a series of sensors responsive to air pressure changes to determine a speed of propagation of the wave in the tie and, in the event that the speed in said tie is below a predetermined speed, an output indication is provided regarding the deterioration of the tie, which can include a real time marking of the tie detected.
EVALUATING RAILWAY TIES
EVALUATION DE JONCTIONS DE CHEMINS DE FER
FISK PAUL (author) / DE RIVERA ERIC (author) / ARMITAGE BENSON (author)
2017-07-20
Patent
Electronic Resource
English
IPC:
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
B61K
Andere Hilfseinrichtungen für Eisenbahnen
,
OTHER AUXILIARY EQUIPMENT FOR RAILWAYS
/
E01B
PERMANENT WAY
,
Gleisoberbau
| Engineering Index Backfile | 1927
Reinforced-concrete railway ties
| Engineering Index Backfile | 1923
Reinforced-concrete railway ties
Engineering Index Backfile | 1919
Railway ties of reinforced concrete
| Engineering Index Backfile | 1926
Prestressed railway ties in Germany
| Engineering Index Backfile | 1953