JPS559129A - Measuring method for resistance of corrosion protective covering - Google Patents
Measuring method for resistance of corrosion protective coveringInfo
- Publication number
- JPS559129A JPS559129A JP8187878A JP8187878A JPS559129A JP S559129 A JPS559129 A JP S559129A JP 8187878 A JP8187878 A JP 8187878A JP 8187878 A JP8187878 A JP 8187878A JP S559129 A JPS559129 A JP S559129A
- Authority
- JP
- Japan
- Prior art keywords
- corrosion protective
- flow
- protective covering
- current
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
PURPOSE: To perform judgement of the quality of corrosion protective covering with ease and high accuracy by measuring and calculating the polarization resistance of the corrosion protective covering.
CONSTITUTION: At the division calculation circuit 6, a current distribution ratio is memorized thru the differential amplifier 4 which works by the flow potential and non-flow potential (which are being measured by the reference electrode 1 installed close to the pipe plate made of copper alloy located within the water chamber of the condenser made of copper alloy, etc.) at the time of flow and non- flow of potential of the corrosion protective current applied on the water chamber. On the other hand, voltage drop for the current flow is measured by the shunt resistor 3 which is inserted in the electric current of the corrosion protective circuit, and the measured value is mathematically divided by the value of the flow current which is calibrated by the distribution ratio at the circuit 6. Thru the procedure, resistance value per polarization unit, which makes a criterion of judgement for the quality of the corrosion protective covering, is directly obtained by reading the resistance meter. Subsequently, judgement of the quality of the corrosion protective covering can be performed with ease and high accuracy.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53081878A JPS6017059B2 (en) | 1978-07-07 | 1978-07-07 | How to measure anti-corrosion film resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53081878A JPS6017059B2 (en) | 1978-07-07 | 1978-07-07 | How to measure anti-corrosion film resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS559129A true JPS559129A (en) | 1980-01-23 |
| JPS6017059B2 JPS6017059B2 (en) | 1985-04-30 |
Family
ID=13758701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53081878A Expired JPS6017059B2 (en) | 1978-07-07 | 1978-07-07 | How to measure anti-corrosion film resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6017059B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7123031B2 (en) * | 2004-12-20 | 2006-10-17 | Siemens Power Generation, Inc. | System for on-line assessment of the condition of thermal coating on a turbine vane |
-
1978
- 1978-07-07 JP JP53081878A patent/JPS6017059B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6017059B2 (en) | 1985-04-30 |
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