Apparatus for measuring unknown time intervals by electric means

Child Classifications

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• G04F 10/005 CPC only CPC only
• G04F 10/02 using oscillators with passive electric resonator, e.g. lumped LC since 1974 IPC+CPC Available in IPC and CPC
• G04F 10/04 by counting pulses or half-cycles of an AC since 1974 IPC+CPC Available in IPC and CPC
• G04F 10/06 by measuring phase since 1974 IPC+CPC Available in IPC and CPC
• G04F 10/08 using pulses produced by radio-isotopes since 1974 IPC only IPC only
• G04F 10/10 by measuring electric or magnetic quantities changing in proportion to time since 1974 +1 CPC IPC+CPC Available in IPC and CPC