FIELD: machine building.
SUBSTANCE: system for monitoring technical state of main refers to pipeline transport and can be used for monitoring technical state of mains. The said system consists of several sensors of acoustic emission mounted on the pipeline, outputs of which are connected to a data processing unit. Additionally, the system consists of devices for calibrating acoustic emission sensors. The devices correspond to sources of pulse current and inductivities coils positioned between the acoustic emission censors at distances from the pipeline facilitating their electro-magnetic interaction with the pipeline and connected to sources of pulse current. The inductivity coils are equipped with cores made out of ferromagnetic material. Also, the inductivities coils are arranged at equal distance from the sensors of acoustic emission. The inductivities coils are positioned at distance from the pipeline less, than radius of the coil.
EFFECT: calibrating sensors of acoustic emission under route conditions.
4 cl, 1 dwg
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