| 摘要 |
FIELD: measuring equipment, applicable in automatic measurement systems, control and emergency protection systems, in which the source information subject to analysis is presented in the frequency form. ^ SUBSTANCE: the offered device for frequency measurement has a shaper of the pulse train under investigation, standard-frequency oscillator, not circuit, the first counter and register, the second counter and register, microprocessor system, trigger pulse shaper, OR element, synchronizing unit, control unit, count pulse shaper, and a multiplexer interconnected in a respective way. The given device realized the method for frequency measurement. ^ EFFECT: expanded band and enhanced accuracy of frequency measurement. ^ 2 cl, 8 dwg |
