CALIBRATING DUAL ADC ACQUISITION SYSTEM

摘要

A method of calibrating a dual gain ADC detector system is disclosed comprising passing a test signal through a high gain signal path to produce a first signal 10 and passing a test signal through a low gain signal path to produce a second signal 6. A time difference 12 between the first signal 10 and the second signal 6 is then determined. Data from the two ADCs 5,9 is then stitched to form a composite mass spectrum without needing to correct the phase between the two ADCs 5,9.