Abstract
Accurate measurement of the height of individual pulses in a signal that is a.c.-coupled is dependent upon correcting a changing baseline to a constant value. A new fast baseline restorer, using internally triggered gated feedback with gain, has been designed and a version optimized for Gaussian-shaped pulses. Performance is dependent on the magnitudes of both the forward and the feedback gains. The design presented can achieve a 0.5% accuracy in pulse height for a minimum pulse width of 2.5 µs or for 5 µs overlapping pulses as long as the overlap is less than 50%. Typical applications for the baseline restorer include blood cell volume measurement systems, scintillation counters and radiation spectroscopy.
Original language | English |
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Pages (from-to) | 267-272 |
Number of pages | 6 |
Journal | Medical Engineering and Physics |
Volume | 19 |
Issue number | 3 |
DOIs | |
Publication status | Published - Apr 1997 |