| 摘要 |
FIELD: measurement equipment.SUBSTANCE: invention relates to the field of engineering, which can perform remote monitoring of formation and growth of cracks in steel structures. A device includes a cover that has magnetic legs for attachment of the cover to a ferromagnetic structure, at least one pair of microprocessor-controlled voltage controls; with that, each voltage control has a wire of a sensor to an electrochemical fatigue sensor attached to the structure subject to an analysis for availability of cracks as a result of fatigue of metal in the steel structure, a power source and earthing; the voltage control is used to perform monitoring of fatigue state of the steel structure; each voltage control is electrically isolated from the rest part of an electrical mounting plate of the device and includes an analogue-to-digital converter. Voltage is applied by means of a voltage control through the above sensors during cyclic loading, and current flowing through the above sensors is measured, and the measurement result is digitised for the analysis of fatigue state of the steel structure.EFFECT: possible prevention of occurring noises and distortion of data during the measurement.34 cl, 4 dwg |
