High resolution in situ ultrasonic corrosion monitor
Abstract
An ultrasonic corrosion monitor is provided which produces an in situ measurement of the amount of corrosion of a monitoring zone or zones of an elongate probe placed in the corrosive environment. A monitoring zone is preferably formed between the end of the probe and the junction of the zone with a lead-in portion of the probe. Ultrasonic pulses are applied to the probe and a determination made of the time interval between pulses reflected from the end of the probe and the junction referred to, both when the probe is uncorroded and while it is corroding. Corresponding electrical signals are produced and a value for the normalized transit time delay derived from these time interval measurements is used to calculate the amount of corrosion.
- Inventors:
-
- Schenectady, NY
- Issue Date:
- Research Org.:
- Knolls Atomic Power Laboratory (KAPL), Niskayuna, NY (United States)
- OSTI Identifier:
- 865579
- Patent Number(s):
- 4539846
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC12-76SN00052
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- resolution; situ; ultrasonic; corrosion; monitor; provided; produces; measurement; amount; monitoring; zone; zones; elongate; probe; placed; corrosive; environment; preferably; formed; junction; lead-in; portion; pulses; applied; determination; time; interval; reflected; referred; uncorroded; corroding; corresponding; electrical; signals; produced; value; normalized; transit; delay; derived; measurements; calculate; pulses reflected; corrosive environment; ultrasonic pulses; preferably formed; ultrasonic pulse; transit time; electrical signals; time delay; electrical signal; time interval; situ measurement; corresponding electrical; situ ultrasonic; ultrasonic corrosion; corrosion monitor; /73/422/
Citation Formats
Grossman, Robert J. High resolution in situ ultrasonic corrosion monitor. United States: N. p., 1985.
Web.
Grossman, Robert J. High resolution in situ ultrasonic corrosion monitor. United States.
Grossman, Robert J. Tue .
"High resolution in situ ultrasonic corrosion monitor". United States. https://www.osti.gov/servlets/purl/865579.
@article{osti_865579,
title = {High resolution in situ ultrasonic corrosion monitor},
author = {Grossman, Robert J},
abstractNote = {An ultrasonic corrosion monitor is provided which produces an in situ measurement of the amount of corrosion of a monitoring zone or zones of an elongate probe placed in the corrosive environment. A monitoring zone is preferably formed between the end of the probe and the junction of the zone with a lead-in portion of the probe. Ultrasonic pulses are applied to the probe and a determination made of the time interval between pulses reflected from the end of the probe and the junction referred to, both when the probe is uncorroded and while it is corroding. Corresponding electrical signals are produced and a value for the normalized transit time delay derived from these time interval measurements is used to calculate the amount of corrosion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}