FIELD: nondestructive testing of materials. SUBSTANCE: proposed device includes harmonic oscillator 1 whose one electrode is connected to ground 2 and other electrode is connected to pipe line 3, first loop antenna 4, first receiver 5, first band-pass filter 6, amplitude detector 7, route indicator 8, second receiver 9, second band-pass filter 10, subtracter 11, first phase detector 12, first integrator 13, adjustable amplifier 14, synchronous detector 15, phase automatic frequency control circuit 16, second phase detector 17, second integrator 18, access and storage circuit 19, leakage indicator 20, pulse generator 21, delay circuit 22, reference frequency unit 23, first mixer 24, first intermediate frequency amplifier 25, second mixer 26, second intermediate frequency amplifier 27 and frequency meter 28. EFFECT: enhanced accuracy of localization of leakage. 2 dwg
Title | Year | Author | Number |
---|---|---|---|
DEVICE FOR HIGH WATER OR EARTH FLOW WARNING | 2000 |
|
RU2190255C2 |
DEVICE FOR BROADCASTING MESSAGES ON FLOOD OR MUD FLOW | 1999 |
|
RU2167451C1 |
PROCEDURE ESTABLISHING LEAKAGE POINT IN PRESSURE PIPE-LINE AND FACILITY FOR ITS REALIZATION | 2001 |
|
RU2213332C2 |
DEVICE FOR CONTINUOUS BY TRACKING CARDIAC ACTIVITY | 2000 |
|
RU2181258C2 |
SYSTEM FOR FINDING MARINE DISASTER | 2000 |
|
RU2193990C2 |
HELICOPTER-BORNE RADAR | 2001 |
|
RU2207588C2 |
GEOPHYSICAL RADAR | 2000 |
|
RU2194292C2 |
DEVICE FOR CONTINUOUSLY OBSERVING OPERATION OF HEART AND LUNGS | 2002 |
|
RU2236169C2 |
METHOD FOR LOCATING AND ESTIMATING CHARACTERISTIC SIZE OF LEAK POINT ON SUBSURFACE PIPELINE | 2001 |
|
RU2206817C1 |
METHOD OF EARLY DETECTION OF FIRE AND DEVICE FOR ITS IMPLEMENTATION | 2009 |
|
RU2531883C2 |
Authors
Dates
2002-12-20—Published
2001-03-13—Filed