MD2865G2 - Method and installation for measuring the protective potential value and automatic installation for electrochemical protection of metals from corrosion - Google Patents
Method and installation for measuring the protective potential value and automatic installation for electrochemical protection of metals from corrosionInfo
- Publication number
- MD2865G2 MD2865G2 MDA20040041A MD20040041A MD2865G2 MD 2865 G2 MD2865 G2 MD 2865G2 MD A20040041 A MDA20040041 A MD A20040041A MD 20040041 A MD20040041 A MD 20040041A MD 2865 G2 MD2865 G2 MD 2865G2
- Authority
- MD
- Moldova
- Prior art keywords
- protective potential
- measuring
- resistor
- installation
- corrosion
- Prior art date
Links
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to methods for measuring the protective potential, to installations for determination of the protective potential and automatic maintenance of the potential value during metal protection from destruction by corrosion in the current-conducting media.The method for measuring the protective potential value consists in that the metal-electrolyte system is polarized with a periodic current with reverse pulse, it is carried out the break in the electric circuit and it is measured the value of the protective potential. Novelty consists in that polarization of the system is carried out with an equal quantity of electricity contained in the main and reverse pulses.The installation for measuring the protective potential value of the metal (1), containing an auxiliary electrode (4), protectable metal (5), a potential comparison electrode, an oscillograph (6), an electrical bridge (7) including two pulse shapers (10, 10a), two ammeter (8, 8a), connected by a resistor (22) and a microammeter (21) for determining the difference of the forward and return directions, connected across a diagonally opposite pair of junctions of a bridge; an interrupter (12), an adjustable resistor (22), a power transformer (23) with a main secondary winding (38a) and two additional secondary windings (34, 38), a bank of capacitors (31), a regulator of single-phase current (24), a capacitor (32) and an inductance (55) for separating the constant and periodic currents.The automatic installation for electrochemical protection of metals from corrosion (33) contains a constant polarization current source (25), a current source (34) for power supply of the electric motor (35), a current source (38) with a rectifier bridge (39) for power supply of the operational amplifier (42) circuits, voltage regulators (40, 41), a transistor bridge (43), an adjustable resistor (44) of the reference voltage, a resistor (47), an ammeter (56), a reference voltage stabilizer (58), an adjustable resistor (59), a resistor (60), a final control element (61), a regulator of single-phase current (24), two diodes (62, 63) connected in parallel opposition, capacitors (64, 65).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDA20040041A MD2865G2 (en) | 2004-02-17 | 2004-02-17 | Method and installation for measuring the protective potential value and automatic installation for electrochemical protection of metals from corrosion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDA20040041A MD2865G2 (en) | 2004-02-17 | 2004-02-17 | Method and installation for measuring the protective potential value and automatic installation for electrochemical protection of metals from corrosion |
Publications (2)
Publication Number | Publication Date |
---|---|
MD2865F1 MD2865F1 (en) | 2005-09-30 |
MD2865G2 true MD2865G2 (en) | 2006-05-31 |
Family
ID=35057549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MDA20040041A MD2865G2 (en) | 2004-02-17 | 2004-02-17 | Method and installation for measuring the protective potential value and automatic installation for electrochemical protection of metals from corrosion |
Country Status (1)
Country | Link |
---|---|
MD (1) | MD2865G2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD504Z (en) * | 2011-10-19 | 2012-11-30 | Институт Прикладной Физики Академии Наук Молдовы | Process for manufacture of slightly soluble anode for cathodic protection |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4219807A (en) * | 1978-04-17 | 1980-08-26 | Cathodic Protection Services, Inc. | Sensor system for an impressed cathodic protection circuit |
RU2069861C1 (en) * | 1992-04-20 | 1996-11-27 | Олег Николаевич Корнилич | Method of current conductive structure polarization potential measurement |
US5627414A (en) * | 1995-02-14 | 1997-05-06 | Fordyce M. Brown | Automatic marine cathodic protection system using galvanic anodes |
RU2109086C1 (en) * | 1995-12-20 | 1998-04-20 | Всероссийский научно-исследовательский институт природных газов и газовых технологий | Device for measurement of polarization potential of underground metal structures |
-
2004
- 2004-02-17 MD MDA20040041A patent/MD2865G2/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4219807A (en) * | 1978-04-17 | 1980-08-26 | Cathodic Protection Services, Inc. | Sensor system for an impressed cathodic protection circuit |
RU2069861C1 (en) * | 1992-04-20 | 1996-11-27 | Олег Николаевич Корнилич | Method of current conductive structure polarization potential measurement |
US5627414A (en) * | 1995-02-14 | 1997-05-06 | Fordyce M. Brown | Automatic marine cathodic protection system using galvanic anodes |
RU2109086C1 (en) * | 1995-12-20 | 1998-04-20 | Всероссийский научно-исследовательский институт природных газов и газовых технологий | Device for measurement of polarization potential of underground metal structures |
Non-Patent Citations (2)
Title |
---|
Защита подземных металлических сооружений от коррозии. Справочник, 1990, * |
Защита подземных металлических сооружений от коррозии. Справочник, М., Стройиздат, 1990, с. 33…35. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD504Z (en) * | 2011-10-19 | 2012-11-30 | Институт Прикладной Физики Академии Наук Молдовы | Process for manufacture of slightly soluble anode for cathodic protection |
Also Published As
Publication number | Publication date |
---|---|
MD2865F1 (en) | 2005-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG4A | Patent for invention issued | ||
KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
MM4A | Patent for invention definitely lapsed due to non-payment of fees |