Electronic device useful for accurate measurements

11/29/1999
An electronic device helped Shell Deer Park Refining Co., Deer Park, Tex., achieve trouble-free measuring of two difficult pipe spools during a distillation unit turnaround.The tool, called the total station device (TSD), allows three-dimensional measurements with an accuracy of The device replaces the surveyor's theodolite, which only measures horizontal and vertical angles. In addition to angles, the TSD measures distances.Beyond the usual land surveys, the TSD can take measurements for the fabrication of new piping spools and handle an array of other measurement challenges.Measurement problemIn early 1999, Shell Deer Park Refining needed to install two new 24-in. pipe spools, each a...
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