Essays on Decrement

ABSTRACT

In the vibrating beam experiment, an aluminum cantilever beam was made to vibrate. An accelerometer transducer was used to convert the mechanical vibrations into a signal that was fed into an oscilloscope via a power supply. The oscilloscope mapped the signal into a sine curve and displayed it on the screen. The oscillations’ decay curve was studied and the beam’s damping ratio was determined. The decay curve’s logarithmic decrement was used to determine the beam’s damping ratio and its natural frequency. The beam’s damping ratio was observed to be underdamped at a damping ratio of 0.0066.

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Abstract

Vigilance decrement is one area that psychologists have always worked hard on in order to provide the best methods to top it. In essence, there are several negative effects of vigilance decrement. The loss of concentration when doing something over a long period of time hinders the effective performance of a given task. As such, these problems may seem to be negligible, but in the real situation they have many adverse effects. Completely stopping vigilance decrement is to some extent impossible. This is because of the human nature to lose concentration when exposed to the same task for a long time. What ...