Title:
蒸気発生器細管の渦電流探傷検査のための位置ベースサンプリング
Document Type and Number:
Japanese Patent JP7058283
Kind Code:
B2
Abstract:
A method of employing an eddy current sensor to perform an inspection of a tube of a steam generator involves accelerating and decelerating the eddy current sensor in a predetermined fashion that substantially reduces the likelihood of damage to the eddy current sensor. The reduction of probe stresses reduces radiological waste and reduces radiation exposure to workers involved in changing damaged probes The recording of an eddy current signal at each of a plurality of equally spaced apart locations along the tube permits the velocity of the eddy current sensor to be varied without compromising the validity of the data that has been recorded. The inspection system employs an encoder that outputs a series of signals as the probe is advanced incremental distances within the tube of the steam generator, and eddy current sensor signals are recorded responsive to at least some of the signals from the encoder.
Inventors:
Richeau, John, Sea
Wood, Daniel, Sea
Neno, Thomas, W
Le, Ki, Vi
Flanigan, Kyle, M
Wood, Daniel, Sea
Neno, Thomas, W
Le, Ki, Vi
Flanigan, Kyle, M
Application Number:
JP2019553107A
Publication Date:
April 21, 2022
Filing Date:
March 08, 2018
Export Citation:
Assignee:
Westinghouse Electric Company LLC
International Classes:
G01N27/90
Domestic Patent References:
| JP2013108893A | ||||
| JP2012526993A | ||||
| JP2001165917A | ||||
| JP62174268U | ||||
| JP61143055U | ||||
| JP63243865A |
Foreign References:
| US7733084 | ||||
| US20050039343 |
Attorney, Agent or Firm:
City Hiroshi