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7368050 |
Quantitative transient analysis of localized corrosion
The invention provides an electrochemical noise method, apparatus and system for estimating parameters of interest related to corrosion rates of an electrically conductive article, the method...
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7309414 |
Method for measuring localized corrosion rate with a multi-electrode array sensor
A method of measuring localized corrosion, using a multi-electrode array sensor. The method eliminates the effect of internal current in corroded electrodes, and thus provides a more accurate...
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7285203 |
Method and apparatus for instrumental analysis in remote locations
The present invention provides a method and apparatus for instrumental analysis in remote locations. In one embodiment, the present invention provides a method of controlling cathodic protection...
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7282928 |
Corrosion measurement field device with improved LPF, HDA, and ECN capability
Low power corrosion measurement devices are described with improved LPR, HDA, and ECN measurement capabilities in a field transmitter for online corrosion monitoring or off-line corrosion data...
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7265559 |
Self-calibrating corrosion measurement field device with improved signal measurement and excitation circuitry
Low power corrosion measurement devices are described with improved signal measurement and excitation circuitry in a field transmitter for online corrosion monitoring or off-line corrosion data...
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7245132 |
Intrinsically safe corrosion measurement and history logging field device
Corrosion measurement devices are described with electrical isolation and intrinsic safety barriers advanced corrosion measurement in a field transmitter for online corrosion monitoring or off-line...
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7239156 |
Configurable corrosion measurement field device
Low power corrosion measurement devices are described with programmable configuration for implementing one or more advanced corrosion measurement types to provide conductivity, general corrosion,...
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7125482 |
Use of electrochemistry to detect buried service lead (Pb) and copper (Cu) water pipes
The present invention relates to using a rectifier, a groundbed consisting of four (4) copper rods, power supply, three (3) copper/copper sulfate (Cu/CuSO 4 ) reference electrodes, a data logger...
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7063781 |
Techniques for sensing chloride ions in wet or dry media
Techniques are provided for measuring chloride ion concentration in a medium. The techniques allow measurements to be made in dry or alkaline media, or both. For alkaline conditions, a sensor...
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7060177 |
Method and apparatus for measuring electrochemical corrosion potential inside small shallow cracks
A method of measuring an electrochemical corrosion potential (ECP) of a material specimen using a detecting device including an ECP detecting array is provided. The method includes locating an...
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7034660 |
Sensor devices for structural health monitoring
Described herein are wireless interrogation systems and methods that rely on a complementary sensing device and interrogator. The sensing device is disposed to measure a parameter indicative of the...
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6960288 |
Method and device for detecting microbiologically induced corrosion
The invention concerns a sensor and a method for detecting microbiologically induced corrosion in a metal structure, which consists in performing the following steps: providing a sensor comprising...
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6936158 |
Method and apparatus for measuring accumulated and instant rate of material loss or material gain
The present invention relates to a method and an apparatus for measuring accumulated and instant rate of material loss or material gain of metal elements for the detection of metal deposition...
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6896779 |
Corrosion sensor
A system using tank corrosion sensors to provide for an overall assessment and monitoring of the electro-chemical corrosion and coatings condition in ships' tanks, and particularly in ships'...
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6884333 |
Electrochemical system for analyzing performance and properties of electrolytic solutions
The invention relates to the analysis of the performance and properties of electrochemical processes, and specifically, to electrolytic solutions and electrode processes. The invention discloses a...
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6814854 |
Hydrogen permeation probe method
A method for the in situ measurement of atomic hydrogen permeation into carbon steel from process streams under operating conditions of up to 3000 psi and temperatures up to 300° F. includes...
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6805788 |
Electrochemical impedance evaluation and inspection sensor
An apparatus for electrochemical impedance spectroscopy having a solid electrolyte is disclosed. The apparatus has a chamber made of an electronically insulating material, a solid electrolyte...
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6797149 |
Apparatus and method for electrochemical detection and control of inorganic scale
An electrochemical scale detection and control system, for on-line detection and control of nucleation and growth of inorganic scales. The system comprises sensitive microprocessor controlled...
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6776889 |
Corrosion monitoring
A corrosion monitor comprising electronic circuitry arranged such that DC current flowing between two electrodes is reduced to essentially zero, while allowing any naturally occurring AC current...
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6646427 |
Determination of chloride corrosion threshold for metals embedded in cementitious material
The chloride corrosion threshold of a metal embedded in a cementitious structure is determined in an accelerated manner by using an electric field to increase the rate of migration of chloride ion...
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6623616 |
Corrosive environment monitor and methods regarding same
A monitoring method and system to monitor an environment in which an object is located includes monitoring one or more environmental factors associated with corrosion of materials in the...
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6610185 |
Electrochemical corrosion potential sensor and method of making
A sensor for measuring electrochemical corrosion potential, and a method for manufacturing a sensor, the sensor comprising a tubular ceramic probe having a closed tip at one end, the probe at least...
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6582587 |
Cathodic protection design method, current mapping and system
Numerical techniques such as the finite element method (FEM) are used to model the current and voltage distribution in concrete structures such as bridges. The geometric arrangement of groundbeds...
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6501286 |
Multiple reference electrode array for measuring open circuit potentials in artificial crevices
An electrode array device for use with a conductive element to simulate a crevice that is subject to corrosive conditions. The device includes a non-conductive member and a plurality of electrodes....
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6478948 |
Method of monitoring and controlling corrosion of furnace boiler tubes
A method for monitoring and reducing corrosion in furnace boiler tubes measures electrochemical noise associated with corrosion mechanisms while corrosion is occurring at the surface of the tubes...
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6419817 |
Dynamic optimization of chemical additives in a water treatment system
The present invention describes an apparatus for the optimized control of various treatment chemicals (inhibitors) applied for corrosion and/or deposit inhibition. The apparatus consist of a...
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6391173 |
Electrochemical corrosion potential sensor
An electrochemical corrosion potential sensor includes a ceramic tip insulating member, and a sensor tip joined to the ceramic tip insulating member, the sensor tip comprising an alloy. Further, a...
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6365035 |
Method for measuring properties of the stack and the corrosion of materials in a soda recovery unit
The invention relates to a method for measuring the properties of a stack ( 15 ) that viscous molten salt forms on the bottom of a soda recovery unit ( 14 ) while black liquor is burned therein,...
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6365034 |
High throughput electrochemical test for measuring corrosion resistance
A high throughput electrochemical test method for determining the resistance to corrosion of a metal article coated with a resinous coating which comprises: (a) making, as the working electrode in...
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6355157 |
Process for real-time detection and inhibition of localized corrosion
This invention describes a novel means of determining the nature (type) of corrosion in real-time. By identifying localized corrosion at the moment of pit initiation, real-time selection, and...
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6313646 |
In-situ electrochemical-based moisture sensor for detecting moisture in composite and bonded structures
A hand-held or permanently attached corrosion sensor is described that uses electrochemical impedance spectroscopy (EIS, also known as AC impedance) to detect coating and structural degradation...
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6294074 |
Electrode design for corrosion monitoring using electrochemical noise measurements
An electrode design is provided for corrosion monitoring using electrochemical noise measurements. Electrochemical probes are used for sensing electrochemical noise voltage values and...
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6281671 |
Electrode component group for a corrosion measuring system for detecting corrosion in a metal embedded in a component made of an ion-conducting material, in particular concrete
An electrode component group for a corrosion measuring system for detecting corrosion of a metal embedded in a construction component of ion-conducting material has a rod-shaped base body having a...
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6280603 |
Electrochemical noise technique for corrosion
The present invention relates to a unique electrochemical noise corrosion rate determination technique and system. The system employs a single working electrode, a counter electrode, a reference...
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6278756 |
Electrochemical corrosion potential sensor with increased lifetime
The invention relates to a sensor for a measuring an electrochemical corrosion potential comprising a sensor tip, a conductor electrically connected to the sensor tip, an insulating member which...
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6275050 |
Apparatus and method to detect corrosion in metal junctions
Apparatus and method to detect corrosion in metal junctions. Corroded metal junctions are usually discovered by visual inspection. The present invention detects corrosion in metal junctions when it...
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6264824 |
Assessment of corrosion
A method and apparatus for the indentification of corrosion in a metal object is disclosed. The method comprises analyzing the statistical distribution of signals generated between two electrodes,...
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6258253 |
Vapor corrosion cell and method of using same
The present invention provides a vapor corrosion cell for a real-time and quantitative measurement of corrosion of conductive materials in atmospheres containing chemically reactive gases and water...
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6258252 |
Method of analyzing corrosion and corrosion prevention
An object to be analyzed for corrosion and corrosion prevention is divided into a plurality of adjacent regions of plural types by a dividing plane, with one of the adjacent regions being referred...
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6132593 |
Method and apparatus for measuring localized corrosion and other heterogeneous electrochemical processes
An electrochemical method for measuring localized corrosion and other heterogeneous electrochemical processes is described. A multi-sensor electrode namely the wire beam electrode, integrated by...
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6110355 |
Corrosion testing method
A corrosion testing method in which testing conditions can be set easily and the corrosion advancing degree of the silver or silver alloys over a longer time period can be evaluated in a shorter...
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6080293 |
Electrolytic test machine
An electrolytic test machine is used for a corrosion resistance test for a test material comprised of a metal blank and a coating film. The electrolytic test machine is constructed so that an...
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6077418 |
Corrosion monitoring
Corrosion of a metal member under heat transfer condition is monitored by using a test coupon made of the same material as that of the metal member. The test coupon may have a welded portion and a...
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6054030 |
System for monitoring biocide treatments
A probe is conveniently positioned in a flowing aqueous medium. The probe is formed by two electrodes of notable difference in nobility connected by an electric resistance high enough to ensure...
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6015484 |
Detection of pitting corrosion
Apparatus and methods for monitoring localized or pitting corrosion of metal or other material are described. A probe having a working electrode made of the same material as the material being...
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5972198 |
Corrosion resistance test process for article formed of metal material and coating
It is an object of the present invention to provide a corrosion resistance test process, wherein the estimation of the corrosion resistance of an article formed of a metal material and a coating...
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5888374 |
In-situ process for the monitoring of localized pitting corrosion
A method and apparatus are provided for monitoring localized pitting corrosion in metal pipes or storage vessels. Electrochemical probes are used for sensing electrochemical noise voltage values...
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5854557 |
Corrosion measurement system
An improved corrosion measurement system for determining the rate of corrosion of a fluid medium. The system is comprised of a highly sensitive excitation and amplification electronic circuitry for...
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5820746 |
Metal surface state evaluation method and semiconductor device production method
Metal formed on a semiconductor wafer is brought into contact with ions adapted to corrode the metal, and subjected to constant-current electrolysis using a galvanostat. The electrode potential of...
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5795461 |
Electrode system for monitoring corrosion
An electrode system for monitoring potentials between electrodes that includes a structure having a surface, a first electrode, a second electrode, an electrolyte, and a monitor to measure the...
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