Acyclism

Acyclism is an inherent phenomenon in internal combustion engines where, a linear movement of several pistons will be transformed into a rotational movement of the crankshaft. The direct consequence is a change in angular velocity, angular position or angular acceleration.

Capturing these variations requires the detection of contrasting and regular periodic elements such as B&W patterns with optical probes offering the desired resolution. Based on speed variations measurement made with 152G7 amplifier, advanced signal analysis allows extraction of acyclisms on the motor’s accessories or the study of drive belt slip.