CATHODE PROTECTION STATION SERVICEABILITY REMOTE CONTROL UNIT Russian patent published in 1994 - IPC

FIELD: systems for transmitting electric signals. SUBSTANCE: device mounted on manifold has main used as communication channel and control units. Control units has generator provided with electromagnetic detector and mating unit. Station for collection of data of the control units has lower frequency filter and amplifier provided with indication. Source of information signal in the station is a generator made with infra low negative polarity ripple frequency of signal-half-period rectified voltage. Signal wire of the generator is connected to negative terminal of cathode protection station and to electromagnetic detector through mating unit. Common wire of the generator is connected to autonomous anode grounding electrode. Unit has selective filters 8 connected in series and connected with manifold 2, amplifier 9 with indication and grounding electrode 10. Device permits to improve range and quality of transmittance of control signals due to application described generator. EFFECT: simplified design; improved functional fidelity. 3 dwg