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US 6,647,347 B1Granted
Phase-shifted data acquisition system and method
AssigneeAgilent Technologies, Inc.
InventorsRandy K. Roushall, Robert K. Crawford
Life of this patent
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Abstract
Improved data acquisition systems and methods that enable large numbers of data samples to be accumulated rapidly with low noise are described. In accordance with this inventive approach, a plurality of data samples is produced from a transient sequence in response to sampling clock, and corresponding data samples across the transient sequence are accumulated in response to an accumulation clock that is shifted in phase relative to the sampling clock.
Claims20
A data acquisition system, comprising:
- a sampler configured to produce a plurality of data samples from a transient sequence in response to a sampling clock;
- and
- an accumulator coupled to the sampler and configured to accumulate data samples in response to an accumulation clock that is shifted in phase relative to the sampling clock.
A time-of-flight mass spectrometer, comprising:
- an ion detector configured to produce a transient sequence from a plurality of respective ion packets;
- a sampler configured to produce a plurality of data samples from the transient sequence in response to a sampling clock;
- and
- an accumulator coupled to the sampler and configured to accumulate corresponding data samples across the transient sequence in response to an accumulation clock that is shifted in phase relative to the sampling clock.
1 more element
A method of acquiring data, comprising:
- producing a plurality of data samples from a transient sequence in response to sampling clock;
- and
- accumulating corresponding data samples across the transient sequence in response to an accumulation clock that is shifted in phase relative to the sampling clock.
Dependencies are inferred from the claim text.