FREQUENCY METER WITH AUTOMATIC SELECTION MEASUREMENT RANGE

Frequency meters with automatic selection of the measurement limit are used to measure frequency input signal, which varies in a wide range. Signal (frequency meters) one most numerous groups measuring instruments that widely various fields technology. There large number meters, based on different principles. At same time, issue creating change have principle operation from well-known systems, is still relevant.
 The aim this work develop an electrical signal meter limit, new measurement, has not been before. An approach construction range proposed. performed using low-frequency single-band meter. Pulses traveling pre-formed. counted formed by series-connected decadal for specified after which, logic circuit, sequentially analyzes states outputs, starting output corresponding maximum distribution coefficient. analysis determine divider, value greater than penultimate digit and does exceed its last digit. After that, connected selected changed indication automatically widely, proposed.
 proposed method allows, simple affordable means circuit construction, make limit. In future, can be non-destructive testing, will expand technical testing.