Фізико-Механічний Інститут Імені Г.В. Карпенка Національної Академії Наук України
Физико-Механический Институт Имени Гювю Карпенко Национальной Академии Наук Украины
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Application filed by Фізико-Механічний Інститут Імені Г.В. Карпенка Національної Академії Наук України, Физико-Механический Институт Имени Гювю Карпенко Национальной Академии Наук УкраиныfiledCriticalФізико-Механічний Інститут Імені Г.В. Карпенка Національної Академії Наук України
Priority to UA2000042209ApriorityCriticalpatent/UA37807A/en
Publication of UA37807ApublicationCriticalpatent/UA37807A/en
The invention relates to measuring equipment and can be used for determination of coordinates and technical characteristics of underground engineering communications (cables of electric transmission, electric communication lines, main pipelines, telecommunication, etc.). Micro-computer electromagnetic survey-measuring system comprises first calibration and close to axis of communication measuring coils winded on the first ferrite core, second calibration and middle measuring coils winded on second ferrite core, third calibration and far measuring coils winded on third core, generator of calibration signals, first and second voltage subtractors, first and second selective am0lifiers, multiplexer, first controlled voltage amplifier, first analog-digital transformer, micro-computer and display.
UA2000042209A2000-04-182000-04-18Micro-computer electromagnetic survey-measuring system
UA37807A
(en)
Transmission equipment for power line carrier communication, outlet plug, outlet plug box, table tap, coupling device, communication device, and communication system
PLC signal gate device for single-phase three-wire AC power line, and distribution board and wattmeter equipped with PLC signal gate device for single-phase three-wire AC power line