Matches 1 - 50 out of 237 1 2 3 4 5 >
Match Document Document Title
7622030 General and localized corrosion rate measurements  
Simultaneous determination of general corrosion and localized corrosion rate measurements is achieved with polarization applied by the electrodes themselves rather than externally applied...
7619423 Direct method and apparatus for testing anticorrosion performance of aqueous protective fluids with wire beam electrode sensors  
A method for testing anticorrosion performance of an aqueous protective fluid by immersing a testing electrode comprising a plurality of individual electrodes insulated from and spaced with respect...
7589539 Process for simulating the corrosive effects of refinery feedstocks on refinery metalurgy  
Process for evaluating the corrosive effect of a refinery feedstock on the metallurgy of one or more refinery processes, by (i) providing a plurality of refinery feedstocks and/or a plurality of...
7550878 Circuit for preventing corrosion of contact  
A circuit for preventing corrosion of a contact, includes an input terminal, a signal line, a switch, an impedance element, and a comparator. The input terminal is to be connected to the contact,...
7541817 Method and a system of diagnosing corrosion risk of a pipe or a pipeline in soil  
A method of diagnosing corrosion risk of a buried pipe due to DC stray currents and/or AC voltages induced in soil employs a metal probe including a first, exposed part having a first specific...
7508223 Multihole and multiwire sensors for localized and general corrosion monitoring  
Methods of using multihole and multiwire sensors to measure general and localized corrosion penetration rates near real time are disclosed. The multihole penetration sensor is included of multiple...
7486088 Method for preventing corrosion of contact and apparatus for preventing corrosion of contact  
An apparatus for preventing corrosion of a contact includes a detection conducting path connected to the contact, a variable impedance unit and a comparing and switching unit. The variable...
7477060 Coating impedance monitoring system  
A detection system for monitoring an engineered structure includes an array of sensors disposable in a predetermined pattern on the engineered structure and disposable between a surface of the...
7466149 Electronic system and software for multielectrode sensors and electrochemical devices  
An electronic system and software program for multielectrode electrochemical devices; a multielectrode sensor for application in environments containing electrochemically active species; and a...
7388386 Method and apparatus for corrosion detection  
A corrosion monitoring device for monitoring corrosion in fluid containing systems and other equipment exposed to a corrosive environment comprising sensor elements having a composition...
7365547 Circuit arrangement for a corrosion protection current feed and for a line test for two-wire lines  
A circuit arrangement for a line test and for feeding a corrosion protection current into a two-wire line comprises a controllable ramp generator for producing a ramp voltage, at least one first...
7317321 Methods and systems for automated pipeline testing  
A method for testing effectiveness of a cathodic protection device configured to apply at least one voltage across an underground structure and a reference point is described. The method includes...
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...
7299634 Combustion chamber  
A combustion chamber ( 4 ) for a gas turbine ( 1 ), the combustion chamber wall ( 24 ) of which is furnished on the inside with a lining formed of a number of heat shield elements ( 26 ), is to be...
7292052 DCVG-CIPS measuring apparatus for detecting the results of a pipe line  
The present invention relates to a pipeline examination apparatus for Direct Current Voltage Gradient (DCVG) and Closed Interval Potential Survey (CIPS) methods. The pipeline examination apparatus...
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...
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...
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...
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,...
7196529 Systems and methods for testing conductive members employing electromagnetic back scattering  
A system or method of analyzing a conductive member for the presence an anomaly. A test source signal is applied to a first test location on the elongate conductive member remote from the corrosion...
7180309 Electronic system for multielectrode sensors and electrochemical devices  
A basic electronic unit, an integrated electronic system, and the associated software program for coupled multielectrode electrochemical devices or sensors. The basic electronic unit uses different...
7157920 Non-destructive monitoring of material integrity  
A component which is known to have particular degradation characteristics is instrumented to provide an electrical potential across a section in which a degradation is likely to occur. The...
7148707 Non-corrosive conductivity sensor unit for measuring conductivity of a fluid  
A conductivity sensor includes a sensor body having an inner surface and an outer surface. A first and a second electrode formed of a solid conducting material are positioned through the inner...
7148706 Embeddable corrosion rate meters for remote monitoring of structures susceptible to corrosion  
An embeddable corrosion rate meter (ECRM) for detecting and measuring corrosion in metal and concrete structures is provided. The system comprises an electrochemical cell with at least one working...
7096721 Corrosion coupon rack and coupon holder  
A corrosion coupon rack includes one or more coupon mounting devices constructed of a coupon holder receiver including a handle recess of a given diameter and an end wall, a connection conduit in...
7068052 Methods and systems for automated pipeline testing  
A method for testing a cathodic protection system is disclosed where the system includes a cathodic protection rectifier configured to apply a voltage across a pipeline and a reference point. The...
7061255 Corrosion monitoring system  
A system for monitoring corrosion in metal by comparing a test sample exposed to a corrosion causing environment and a reference sample exposed to a protected environment. An AC voltage source...
7034553 Direct resistance measurement corrosion probe  
A direct resistance measurement probe for measuring corrosion levels and material loss. The probe includes a hollow body having a resistive element at one end that is exposed to the environment....
7005866 Apparatus and process for detecting condensation in a heat exchanger  
A feedwater heater for an HRSG is provided with a monitoring unit for detecting the presence of condensation in the feedwater heater. The monitoring unit includes a dielectric band around one of...
6987396 Sensor array for electrochemical corrosion monitoring  
A sensor array for measuring localized corrosion based on electrochemical reactions is disclosed. The sensor has an array of electrodes that are made from the material of interest. The electrodes...
6982563 Monitoring of corrosion induced loss of material by means of a plurality of electrical resistance measurements (field signature method, electrical resistance tomography)  
A method of monitoring or predicting corrosion using a field signature method is provided which is intended to be applicable to non-linear locations, such as bends, junctions and the like. The...
6960921 Method and apparatus for real time monitoring of metallic cation concentrations in a solution  
A method and apparatus for monitoring the concentration of metal cations in a chemical solution. In a preferred embodiment, the chemical solution is a solution for derouging or passivating...
6946855 Electrical resistance sensor and apparatus for monitoring corrosion  
An apparatus ( 1 ) is disclosed for monitoring the effect on a material of exposure to a fluid, and thereby monitoring the effect on a section of pipe ( 9 ) for carrying the fluid. The apparatus...
6945098 Hydrocyclone wear-detection sensor  
Wear-detection sensor has a body of electrically insulating material with an opening through which a flowable substance can pass, and one or more electrical conductors surrounding the opening and...
6940295 Apparatus and methods for non-destructive inspection using microwave sensing  
Apparatus and methods for materials inspection using microwave sensing are disclosed. In one aspect, a system for detecting corrosion of a workpiece includes a scanning assembly having a support...
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...
6922070 Evaluating pattern for measuring an erosion of a semiconductor wafer polished by a chemical mechanical polishing  
An evaluating pattern includes a conductive pattern formed on a substrate, an insulating layer which is formed on the conductive pattern, a plurality of contact holes formed in a rectangular area...
6919729 Corrosivity measuring device with temperature compensation  
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...
6903540 Anode rod depletion indicator  
An Anode Rod Depletion Indicator for use with a sacrificial anode in a fluid storage tank. A core wire, which is arranged within the anode, has a series of hollow or fluted passageways. When the...
6888359 Investigating current  
The invention is directed towards improved accuracy of investigations into corrosion using the methods and apparatus of the invention. In particular, the invention provides a method of...
6870356 Method and apparatus for vertical voltage potential mapping  
A method of mapping voltage potential along a metal structural member extending underground through a range of depths comprises the steps of providing a voltage meter having positive and negative...
6861853 Investigating corrosion  
A method of investigating corrosion includes providing a mounting unit for two or more electrical contacts, introducing the mounting unit to a replica of a location which has not corroded,...
6822462 Self-adapting method for inhibiting corrosion of a component of a marine vessel through the use of an impressed current  
A self-adapting method for inhibiting corrosion of a component of a marine vessel performs a monitoring step during which a signal from the electrode is compared to a predetermined threshold...
6788075 Anode monitoring  
An anode monitoring system for monitoring the integrity of anodes 2 provided on a metallic structure such as a pipeline system 1 . A signal circuit S n including the pipeline 1 and one of the...
6744265 Automated cathodic protection monitor and control system  
An automated, remote control/monitoring system for a cathodic protection system for a buried metallic object based on monitoring multiple coupon test stations, buried next to the metal object, by a...
6693445 Probe device for apparatus for monitoring corrosion of a material  
A probe is disclosed which is suitable for use with an apparatus for monitoring the corrosion of a material by accurately measuring changes in the resistance of an exposed element ( 101 ) in...
6690182 Embeddable corrosion monitoring-instrument for steel reinforced structures  
A system for monitoring the material changes in a structure is disclosed through the use monitoring instruments embedded within the structure. The instruments have at least one sensor with...
6686752 Wear indicator for refractory linings  
A vessel, as for a cyclone separator, includes a continuous electrical conductor embedded in the wall of the vessel for sensing when the lining has eroded.
6680619 Sensoring device for monitoring potential on corrosion threated objects  
A sensor device for registering voltage drops on corrosion exposed structures and coupled to a surface area thereof to which a voltage is supplied by electrodes causing an excitation current in...
6677765 Detection, measurement and control of ammonia in flue gas  
A tubular probe has spaced apart bands or patches of the same material as the probe body attached to the probe body by an electrically insulating, high temperature material. A series of cooling...
Matches 1 - 50 out of 237 1 2 3 4 5 >