Abstract
This paper presents the use of a 6 DoF position measurement method with the NaviFast6D device, which is a short-range measuring arm for linear and angular position measurements. The device is used in the measurement of correct hip prosthesis fixation during hip surgery. The arm is equipped only with accelerometers, which is an innovative application that needs to be verified. The described experimental tests of determining the repeatability of the NaviFast6D demonstrated the correctness of the method. The analysis of the measurement repeatability limitations in the measurement and the dependence of the measurement repeatability on the arm base position, was described in detail. The need for about 400 repetitions of the measurement to obtain repeatability of measurement averaged in the range of 0,1 ÷ 0,2 mm was demonstrated. The applicability of the measuring arm in the case of approaching to the vertical of any axis of the arm joints was determined.
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