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