SYSTEM OF THE WATER LEVEL IN PIEZOMETRIC WELLS AUTOMATED MEASUREMENT Russian patent published in 2018 - IPC E21B47/47 G01F23/14 G08C19/16 

FIELD: power engineering.

SUBSTANCE: invention relates to hydraulic power industry, in particular to the long objects such as hydraulic structures (HTS) technical condition monitoring automated facilities, ground dams, dams with a large number of spaced measuring points, and can be used, in particular, in remote monitoring systems of water filtration, water level in pressure and non-pressure piezometric wells and water level in the hydraulic power plants hydro level instruments. System consists of the Bragg fiber gratings based fiber-optic pressure sensors placed in piezometric wells, from the sensors groups measuring channels are created, in each channel, by fiber optic cables the sensors are connected to each other and to the included in each channel passive fiber depolarizer, wherein each channel is connected to a multiplexer-switch through the passive fiber depolarizer, which in according to the certain program connects the channels one by one to the polling device, recording the resonant wavelength change, calculating the water column pressure per sensor and this water column height in each piezometric well, transmitting the calculated values to the HPP control panel for the water column height calculated values visualization and automatically comparing with the permissible ones and sending the alarm signal to the HPP control panel when the permissible values are exceeded.

EFFECT: minimization of the measuring devices maintenance and ensuring their vandal-resistance and energy independence, automating of the readings comparing process with acceptable values.

1 cl, 3 dwg