FAS Abstracts 2004 Meeting Page

Joint Meeting: Engineering & Physics and Space Sciences A (PSS): PSS-2

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Calibration of clinometers for the alignment of muon chambers in the CMS experiment. T. MOSCHOUTIS, M. RIPERT, L. CARAWAY, and M. HOHLMANN.  Florida Institute of Technology, Melbourne, FL 32901. The CMS experiment at the Large Hadron Collider requires continuous monitoring of the position and inclination of large muon chambers. The goal of our development effort is to come up with an automated calibration procedure for a clinometer that measures angles electronically and is part of the monitor system. As a first step, we have constructed a mechanism that tilts the sensor by a known angle. The signal produced by the clinometer is readout by a computer using LabView, which will convert it into an angle value. The reference angle and the one found by the computer are compared in order to measure the reliability of the clinometer and to calibrate it. The presentation will focus on the details of the design and the results of these calibration procedures.