METHOD FOR CORRECTING CHARACTERISTIC OF DELAY LINE AND METHOD FOR MEASURING TIME INTERVAL OF DELAY LINE

摘要

PURPOSE: To perform the accurate measurement by providing a bus in a timing counter, and correcting the characteristic of a delay line on the basis of a timing difference of a reference clock and an arming clock per a digital set value of a delay line. ;CONSTITUTION: When a SW₁ is set so that a reference clock (REFclk) is input to an IN₁, and a SW₂ and a SW₃ are set so that an arming clock (ARMclk) is input to a terminal IN₂, to which the signal is input, an ARMclk is input to the IN₂. A gate 21 measures a timing difference of the REFclk and the ARMclk of each digital set value d of a delay line DL₂, which is obtained by a control computing device. A real delay time 7d is housed so as to correspond to a set value d inside of a memory 22 to perform the soft ware processing of the delay time, τ_d Since correction values for characteristics of gain, off-set and linearity or the like of DL₂ are thereby obtained to secure the time relationship of the ARMclk to the REFclk, delay timing can be set accurately.;COPYRIGHT: (C)1993,JPO&Japio