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Title: Piping inspection instrument carriage with precise and repeatable position control and location determination

Abstract

An instrument carriage for inspection of piping comprises front and rear leg assemblies for engaging the interior of the piping and supporting and centering the carriage therein, and an instrumentation arm carried by a shaft system running from the front to rear leg assemblies. The shaft system has a screw shaft for moving the arm axially and a spline gear for moving the arm azimuthally. The arm has a pair of air cylinders that raise and lower a plate in the radial direction. On the plate are probes including an eddy current probe and an ultrasonic testing probe. The ultrasonic testing probe is capable of spinning 360.degree. about its axis. The instrument carriage uses servo motors and pressurized air cylinders for precise actuation of instrument components and precise, repeatable actuation of position control mechanisms.

Inventors:
 [1];  [2];  [3];  [4];  [1]
  1. (North Augusta, SC)
  2. (Augusta, GA)
  3. (Martinez, GA)
  4. (Alken, SC)
Issue Date:
Research Org.:
WESTINGHOUSE SAVANNAH RIVER CO
OSTI Identifier:
869154
Patent Number(s):
5285689
Assignee:
United States of America as represented by United States (Washington, DC) SRS
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
piping; inspection; instrument; carriage; precise; repeatable; position; control; location; determination; comprises; front; rear; leg; assemblies; engaging; interior; supporting; centering; therein; instrumentation; arm; carried; shaft; running; screw; moving; axially; spline; gear; azimuthally; pair; air; cylinders; raise; plate; radial; direction; probes; including; eddy; current; probe; ultrasonic; testing; capable; spinning; 360; degree; axis; servo; motors; pressurized; actuation; components; mechanisms; radial direction; air cylinders; rear leg; pressurized air; leg assemblies; eddy current; air cylinder; current probe; ultrasonic testing; position control; control mechanism; piping inspection; instrument carriage; control mechanisms; inspection instrument; arm carried; /73/324/

Citation Formats

Hapstack, Mark, Talarek, Ted R., Zollinger, W. Thor, Heckendorn, II, Frank M., and Park, Larry R. Piping inspection instrument carriage with precise and repeatable position control and location determination. United States: N. p., 1994. Web.
Hapstack, Mark, Talarek, Ted R., Zollinger, W. Thor, Heckendorn, II, Frank M., & Park, Larry R. Piping inspection instrument carriage with precise and repeatable position control and location determination. United States.
Hapstack, Mark, Talarek, Ted R., Zollinger, W. Thor, Heckendorn, II, Frank M., and Park, Larry R. Sat . "Piping inspection instrument carriage with precise and repeatable position control and location determination". United States. https://www.osti.gov/servlets/purl/869154.
@article{osti_869154,
title = {Piping inspection instrument carriage with precise and repeatable position control and location determination},
author = {Hapstack, Mark and Talarek, Ted R. and Zollinger, W. Thor and Heckendorn, II, Frank M. and Park, Larry R.},
abstractNote = {An instrument carriage for inspection of piping comprises front and rear leg assemblies for engaging the interior of the piping and supporting and centering the carriage therein, and an instrumentation arm carried by a shaft system running from the front to rear leg assemblies. The shaft system has a screw shaft for moving the arm axially and a spline gear for moving the arm azimuthally. The arm has a pair of air cylinders that raise and lower a plate in the radial direction. On the plate are probes including an eddy current probe and an ultrasonic testing probe. The ultrasonic testing probe is capable of spinning 360.degree. about its axis. The instrument carriage uses servo motors and pressurized air cylinders for precise actuation of instrument components and precise, repeatable actuation of position control mechanisms.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

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