Importance

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Abstract

A timer system (10,110,210) of two or more timers (10,110,210) measures the response time between an initiating event and a dependent event. The initiating and dependent events may be physically separated or electrically isolated. The timer system (10,110,210) permits recording of associated initiating and dependent events for a response time test followed by the recording of additional associated initiating and dependent events for additional response time tests while the timers remain separated. Thus, the timer system (10,110,210) permits serial recording of information for a large number of response time tests. The timers (10,110,210) may be identical. The timers (10,110,210) are interconnected and synchronized, then disconnected and separated to record the time of occurrence of the physically separated or electrically isolated events. The timers (10,110,210) are then again interconnected for a simultaneous recording of the elapsed time on each timer. A correction is made in the recorded time of occurrence of the events on all but one timer (10,110,210) to compensate for the differences in elapsed time. The response time between initiating and dependent events is then calculated to a common time base. The timer system (10,110,210) can also be used to record analog signals (68,72,74,168,172,174) to a common time base or as a conventional timer (10,110,210) to time an event from start (60) to finish (62).

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First Claim