TIME MEASUREMENT FREQUENCY GENERATION

Brand Owner (click to sort) Address Description
BALL BALL CORPORATION 9200 West 108th Circle Westminster CO 80021 time measurement and frequency generation instruments; namely, atomic frequency standards, rubidium oscillators and quartz crystal oscillators;
BALL BALL CORPORATION 9200 West 108th Circle Westminster CO 80021 time measurement and frequency generation instruments; namely, atomic frequency standards, rubidium oscillators and quartz crystal oscillators;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. There is provided a calibration method for a time measurement apparatus having a time-voltage converter for converting the time interval of measurement signals and clock signals to voltage, an analog-digital converter for converting this voltage to digital values, and a time interval measurement device for measuring this time interval from these digital values. The method includes a calibration signal generation step for calibrating the calibration signals for the subperiod of these clock signals, with these calibration signals having a shorter period difference than the time which corresponds to the resolution of this analog-digital converter; a frequency distribution analysis step for repeatedly measuring these calibration signals, finding this digital value, and analyzing the cumulative frequency distribution of these digital values; and a calibration determining step for determining the calibration value of these digital values such that this cumulative frequency distribution is linear.