| 摘要 |
A method of measuring the stress state of at least one rail of a continuously welded rail, comprising the steps of:
prearranging:
- one pair or a plurality of pairs of sensors: each pair including a first sensor (2b) designed to operate in response to temperature variations and a second sensor (2a) suitable for operating in response to temperature variations and longitudinal deformation in a rail section;
- at least one emitter means (3) of at least one light energy beam arranged far from said one pair or plurality of pairs of sensors (2a, 2b);
- at least one interrogation control unit (4) designed to receive said light energy beam that has passed through/been reflected by said one pair or plurality of pairs of sensors;
- at least one unit (6) for processing the data collected by the control unit (4); and
- at least one optical fiber (5): designed to optically connect at least one emitter means (3) with each sensor (2a, 2b) and with said interrogation control unit (4);
energizing said at least one emitter means (3) in order to supply at least one light energy beam to one pair or to a plurality of pairs of sensors (2a, 2b); and
processing the stress state of the rail by the at least one processing unit (6), on the basis of the signals received by the interrogation control unit (4).
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