Ultrasonic cathodic protection test station
US10352696B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Sep 2, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02854
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Ultrasonic transducers are imbedded into sacrificial metal coupons which are located in the vicinity of underground or aboveground structures, such as a pipe or tank, which allow for the measurement of the effectiveness of impressed current cathodic protection systems and can be used to determine the corrosion rate of the structure that is being protected. When excited by a pulser-receiver excitation pulse, the ultrasonic transducers can be used to determine the thickness of the coupon and its rate of change over time. The sacrificial metal coupon ultrasonic transducer assembly can be located in the vicinity of underground piping, under or inside of a tank, underground or underwater, or inserted into structures where absolute material loss values or material loss rate of change is being monitored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.