Abstract

A new technique for the measurement of vibration at the wrist, using an accelerometer worn on a bracelet, has been developed, and appears to be well-suited to measuring vibration generated by jack-leg drills. The technique has not been validated, however. In order to determine whether the new accelerometer yields valid and representative results, this project will compare the vibration recorded by the new technique with that measured directly with a wrist-mounted laser sensor. The project will also determine the influence of other factors, such as grip force, on the validity of the vibration measurements and characterize the level of vibration generated by different types of jack-leg drills, and the attenuation achieved with antivibration handles.