| 摘要 |
PURPOSE:To select and use the desired band only, by performing an automatic switch of bands by making use of the overflow output of a pulse integrating counter. CONSTITUTION:The pulse given from a frequency controlling means 1 is read in by a pulse integrating counter 2 and turned into an operating frequency. The overflow output that is generated at the limit of measurement is used as a band switching signal. This overflow output is read into a band switching integrating counter and held there to be converted into a parallel output data. This data is fed to a band decoder 4. The decoder 4 is actuated at the band which is selected by an active line since the output lines are become active successively in response to the increment/decrement of input data if an electronic circuit is constituted so that the prescribed bands A-N are actuated successively by the outputs A-N of a decoder driver. |
