High resolution in situ ultrasonic corrosion monitor

Patent · Tue Jan 01 04:00:00 EST 1985

OSTI ID:865579

Grossman, Robert J ^[1]

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1. Schenectady, NY

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.

• Research Organization: Knolls Atomic Power Laboratory (KAPL), Niskayuna, NY
• DOE Contract Number: AC12-76SN00052
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4539846
• OSTI ID: 865579
• Country of Publication: United States
• Language: English

Related Subjects

/73/422/
amount
applied
calculate
corresponding
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corroding
corrosion
corrosion monitor
corrosive
corrosive environment
delay
derived
determination
electrical
electrical signal
electrical signals
elongate
environment
formed
interval
junction
lead-in
measurement
measurements
monitor
monitoring
normalized
placed
portion
preferably
preferably formed
probe
produced
produces
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pulses
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resolution
signals
situ
situ measurement
situ ultrasonic
time
time delay
time interval
transit
transit time
ultrasonic
ultrasonic corrosion
ultrasonic pulse
ultrasonic pulses
uncorroded
value
zone
zones