Wellbore instrument clock oscillator and instrument system made therewith

摘要

A clock oscillator (10) includes a first crystal controlled oscillator (12), a second crystal controlled oscillator (34) and a logic controller (18) functionally coupled to the first and second crystal controlled oscillators. The logic controller is programmed to calculate a frequency of the first crystal controlled oscillator as a function of the frequency of the first crystal controlled oscillator with respect to a frequency of the second crystal controlled oscillator characterized with respect to an environmental parameter.