ClassID:

171570

G01R23/155 - CPC Classification

Classification description:

Arrangements for measuring frequencies; Arrangements for analysing frequency spectra; Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage; Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements (indicating that pulse width is above or below a certain limit) giving an indication of the number of times this occurs, i.e. multi-channel analysers (for pulse characteristics)

Recent Application in this class: