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公开(公告)号:US5912728A
公开(公告)日:1999-06-15
申请号:US810212
申请日:1997-02-28
申请人: Pascal Besesty , Marc Belleville
发明人: Pascal Besesty , Marc Belleville
摘要: This invention relates to a device for measuring the duration of a time interval between a start signal (D) and an end signal (F) comprising: a clock (H) supplying pulses with a period T, a digital circuit (2, 3, 4) to carry out a coarse measurement of the number of clock pulses between D and F, an analog circuit (6, 8, 10, 12, 14) to carry out a fine measurement of the time respectively between D and the first (respectively between F and the last) clock pulse which begins after D (respectively before F), this circuit comprising: means (8, 10) of generating N ramps with the same direction, means of sampling at least one the ramps at the instants that D and F occur. Application to a microlaser telemeter.
摘要翻译: 本发明涉及一种用于测量起始信号(D)和结束信号(F)之间的时间间隔的持续时间的装置,包括:提供具有周期T的脉冲的时钟(H),数字电路(2,3, 4)对D和F之间的时钟脉冲数量进行粗略测量,模拟电路(6,8,10,12,14)分别在D与第一(分别)之间执行时间的精细测量 在F和最后一个之间)在D(分别在F之前)开始的时钟脉冲之间,该电路包括:产生具有相同方向的N个斜坡的装置(8,10),在时刻采样至少一个斜坡的装置 和F发生。 应用于微型激光遥测仪。