device used to produce a spot displacement according to a specified function of timea reference oscillation from which time intervals can be determined in terms of the instants of occurrence of certain parts of the cycles of the oscillation NOTE - The term 'time base' may also apply to the equipment used to generate this reference oscillation.an oscillation used as a reference from which time intervals can be determined in terms of the instants of occurrence of certain parts of the cycles of the oscillation
The number of pulses/advances per beat in a simple clock signal.