Method and measuring system for monitoring a line for changed ambient conditions
AssigneeLEONI Kabel GmbH
InventorBERND JANSSEN
Life of this patent
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Abstract
A method for monitoring a line for a change in ambient conditions. The line includes a measurement line of a predetermined length which has a measuring conductor enclosed in an insulation with a known dielectric coefficient. An analog signal of defined frequency is generated and injected at a feed site. The signal is reflected at a predetermined reflection site and a resulting signal amplitude is measured at a defined measuring point. A measure for the ambient condition, particularly a temperature, is determined from the signal amplitude.
Claims17
1-12. (canceled)
A method for monitoring a line for a change in an ambient condition, the method comprising:
- providing the line with a measuring line having a predetermined length and including a measuring conductor surrounded by an insulation;
- generating an analog signal and feeding the signal into the measuring line at a feed site;
- reflecting the signal at a known reflection site, a reflected signal component being returned in the measuring conductor;
- and
- measuring a signal amplitude at a fixed measuring site and ascertaining a measure for the changed ambient condition from the signal amplitude.
A measuring system for monitoring a line for changed ambient conditions, the measuring system comprising:
- a measuring line having a predetermined length and including a measuring conductor surrounded by an insulation;
- a signal generator for generating an analog signal with a predefined frequency;
- a voltmeter for measuring a signal amplitude at a fixed measuring site on said measuring conductor;
- and
- an evaluation unit connected to receive the signal amplitude and configured for ascertaining a measure for the changed condition based on the signal amplitude measured at the measuring site.
Dependencies are inferred from the claim text.