Method of corrosion rate measurement and its device

Abstract

Abstract PURPOSE: To measure the corrosion rate of metal material in various environments continuously and automatically with very little influence to the measured object by the use of a corrosion rate measuring device based on AC impedance system. CONSTITUTION: Outputs of the sine wave oscillators 1, 2 of high and low frequencies are mixed in the mixer-buffer circuit 3, and applied across the samples 4-a and 4-b in a corrosive environment of the measuring cistern 4, AC current that flows at the time is converted and amplified by the current-voltage converter 5, and is taken as voltage. The output is fed to the operating circuit 10 through the low- and high- pass filters 6, 7 and the peak hold circuits 8, 9, a corrosion rate is obtained as the output. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Shiro Haruyama
• 👤 Toru Tsuru

Bibliographic Details