Bore mapping and surface time measurement system

Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G01N 2900

Patent

active

049642952

ABSTRACT:
The present invention includes a bore mapping system that includes one or more high resolution ultrasonic mapping transducers that are used to measure the diameter of a bore. The travel time for a normally incident pulse to reach the bore surface and return for each transducer is used with a reference reflection time measured in a calibration bore to determine the measured diameter from a mechanically measured reference diameter using a known velocity of the ultrasonic pulse in an immersion fluid. The diameter measured by each of the transducers is averaged to obtain an average measured diameter which is produced for plural axial rotor positions. The present invention also includes a surface time measurement system that uses at least one ranging transducer measuring the ranging time required for a ranging beam to reach and return from the bore surface. The measured ranging time is used with a calibrated ranging time obtained in the calibration bore to modify a calibrated inspection beam surface time for an inspection transducer to obtain a current inspection beam surface time. The ranging time can also be used to obtain a correction time curve that provides correction time for the inspection beam surface time versus circumferential bore position. The calibrated inspection beam surface time or the correction time curve, are used to correct positions of flaws in the rotor material.

REFERENCES:
patent: 3221544 (1965-12-01), Gunkel
patent: 3415110 (1968-12-01), Cowan
patent: 3575044 (1971-04-01), Gibbs
patent: 3599478 (1971-08-01), Weinbaum
patent: 4008603 (1977-02-01), Paulissen
patent: 4393711 (1983-07-01), Lapides
patent: 4579294 (1986-07-01), Brill et al.
H. S. Brooks, A. W. Brown, A. C. Rankin; "Ultrasonic Inspect. of the Nimrod Power Plant Alternator Rotors"; Proc. of the 4th Int'l. Conf. on Non-Destructive Testing; London, Sep. 9-13, 1963; pp. 196-202.
G. J. Posakony; "Ultrasonic Tech. for Remote Inspect. of Nuclear Reactor Vessels"; Periodic Inspect. of Pressure Vessels Conf.; London; May 9-11, 1972; IME, pp. 119-125.
J. N. Baez, C. Venturino, O. Wartman; "In-Service Inspect. Sys. for the 1st Arg. Atomic Power Plant"; Per. Inspect. of Press. Vessels Conf.; London; May 9-11, 1972; IME; pp. 97-101.
SWRI Proj. 17-3286-01 Fin. Rep., V. I.; "Jan. 1972 Inserv. Exam. of San Onofre Nuc. Gen. Stat., Unit 1"; So. Calif. Edison Co.; Apr. 1972, pp. 1-32; A-1--B-5.
"San Onofre Nuc. Gen. Stat. Unit 1 Anal. of 2nd Surveillance Mater. Capsule"; So. Calif. Edison Co.; Jul. 1972, pp. 1-15.
"Jan. 1972 San Onofre Nuc. Gen. Stat. Unit 1 Nondestructive Inserv. Inspect.", So. Calif. Edison Co., Jul. 1972, pp. 1-21.
"In-Serv. Inspect. Tool for Nuc. Reactor Vess."; H. W. Keller, D. C. Burns, T. R. Murray; Conf. on Per. Inspect. of Press. Vess.; London; May 9-11, 1972; IME, pp. 126-139.
"Mech. Equip. for Inserv. Inspect. of Nuc. Reac."; C. E. Lautzenheiser; Conf. Per. Inspect. of Press. Vess.; London; May 9-11, 1972; IME; pp. 205-220.
"Boresonic Inspect. of Forged Turbine & Gen. Rotors"; W. R. Marklein, R. E. Warnow; ASMEP 65-WA/PWR-2; ASMEWA Meeting, N.Y., 11/29-12/4, 1964.
"Inserv. Inspect. of San Onofre Nuc. Gener. Stat. Unit 1,2,3"; C. G. Johnson, D. Albertstein, O. J. Ortega, C. E. Lautzenheiser; ASMEP 70-WA/NE.5; ASMEWA Mtg., N.Y., 11-29 to 12-3, 1970.
"Rev. of the Tech. of Inserv. Inspect."; C. E. Lautzenheiser, III, Inter-American Conf., Feb. 1972.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Bore mapping and surface time measurement system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bore mapping and surface time measurement system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bore mapping and surface time measurement system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-758664

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.