SU739330A1 - Method of measuring surface area of electrically conducting object - Google Patents
Method of measuring surface area of electrically conducting object Download PDFInfo
- Publication number
- SU739330A1 SU739330A1 SU782660680A SU2660680A SU739330A1 SU 739330 A1 SU739330 A1 SU 739330A1 SU 782660680 A SU782660680 A SU 782660680A SU 2660680 A SU2660680 A SU 2660680A SU 739330 A1 SU739330 A1 SU 739330A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- current
- surface area
- electrically conducting
- measuring surface
- measuring
- Prior art date
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- Analysing Materials By The Use Of Radiation (AREA)
Description
(54) СПОСОБ ИЗМЕРЕНИЯ ППОЩАДЙ ПОВЕРХНОСТИ 1 Изобретение относитс к измеритель- Htrfl технике, в частности к электрическим методам йамерёни неэлектрических величив, и может быть использовано дл измерени площади поверхности объекта, например, в гальванотехнике. Известен токовый электрохимический способ измерени плс дади поверхности окиСйо серебр ного электрода Щ Способ заключаетс в подборе тока, пропускаемого через электрод, из услови совпадени времени разр да окиского сло с временем разр да окисного сло , на элект роде с известной площадью поверхности (эталоне). Площадь поверхности определ ют по соотношению токов на испытуемом и эталонном электродах. Способ имеет ограниченное применение, так как пригоден лишь дл узкого круга окисньгх электродов . Наиболее бпизким к изобретению по технической сущности вл етс способ из мерени площади поверхности электропроЭЛЕКТРОПРОВОДНОГО ОБЪЕКТА ВОДНОГО объекта, при котором объект погружают в ванну с раствором эле ктролита, используют егб в качестве катода, пропускают в течение заданного интервала времени (1-10 мс стабилизированный ток и измер ют изменение потенш ала катода {2. Затем графически наход т производную в начальной точке кривой врем потенциал и по формуле определ ют площадь поверхности объекта. Недостатком известного способа вл етс то, что дл измерени плс ади поверхности объекта требуетс графическое построение, привод щее к возникновению методических ошибок измерени . Цель изобретени - повышение точности измерени . Цель достигаетс тем, что после пропускани тока вьщерживают паузу, необходимую дл восстансвлен11Я концентрации разр жающихс ионов на поверхности объекта, пропускают ток вторично, иамс- , р ют интервал времени до момента Скочкообразного . изменени потенциала катола.(54) METHOD OF MEASUREMENT OF SURFACE BENEFIT 1 The invention relates to a measuring technique, in particular to electrical methods of non-electric measuring, and can be used to measure the surface area of an object, for example, in electroplating. The current electrochemical method for measuring the PLC of the surface of the silver electrode of the silver electrode is known. The method consists in selecting the current passed through the electrode, since the discharge time of the oxide layer coincides with the discharge time of the oxide layer on the electrode with a known surface area (standard). The surface area is determined by the ratio of currents at the test and reference electrodes. The method has limited application, as it is suitable only for a narrow circle of oxide electrodes. The most technical aspect of the invention is the method of measuring the surface area of an electro-electric conductive object of an aqueous object, in which the object is immersed in a bath with an electrolyte solution, it is used as a cathode, a stabilized current is passed for 1-10 ms The change in the cathode potential {2 is measured. Then, the derivative is graphically found at the starting point of the time potential curve, and the surface area of the object is determined by the formula. is that measuring the surface of the object requires a graphical construction, leading to the occurrence of methodological measurement errors. The purpose of the invention is to improve the measurement accuracy. The goal is achieved that after passing a current, a pause necessary for restoring the concentration of discharging ions on the surface is sustained object, the current is passed through again, iams-, the interval of time is up to the moment of the Skocco-shaped change in the potential of the cathol.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782660680A SU739330A1 (en) | 1978-09-08 | 1978-09-08 | Method of measuring surface area of electrically conducting object |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782660680A SU739330A1 (en) | 1978-09-08 | 1978-09-08 | Method of measuring surface area of electrically conducting object |
Publications (1)
Publication Number | Publication Date |
---|---|
SU739330A1 true SU739330A1 (en) | 1980-06-05 |
Family
ID=20783820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782660680A SU739330A1 (en) | 1978-09-08 | 1978-09-08 | Method of measuring surface area of electrically conducting object |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU739330A1 (en) |
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1978
- 1978-09-08 SU SU782660680A patent/SU739330A1/en active
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