Abstract: An electrical measuring system of a six-port circuit includes a delay line and a arithmetic unit. In a first operating mode, an electrical signal can be on the one hand transmitted directly to a first input terminal and on the other hand via the delay line to a second input terminal of the six-port circuit. In an embodiment, the measuring system is configured such that, in the second operating mode, it does not supply a signal to the first input terminal of the six-port circuit and it supplies a reference signal to the second input terminal of the six-port circuit.

Abstract: Described is an electrical measuring system with a six-gate circuit and a delay line. An electrical signal is fed from a resonator, at least one of directly and or via the delay line, to the six-gate circuit. The frequency of the signal is computed by the six-gate circuit in dependence on the length of the delay line.

Abstract: Described is an electrical measuring system with a six-gate circuit and a delay line. An electrical signal is fed from a resonator, at least one of directly and or via the delay line, to the six-gate circuit. The frequency of the signal is computed by the six-gate circuit in dependence on the length of the delay line.