期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 89, 期 8, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5004798
关键词
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资金
- Defense Threat Reduction Agency, Basic Research Award [HDTRA1-12-0015]
- National Science Foundation [1352780, 1506672]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1506672] Funding Source: National Science Foundation
A comparison-based digital waveform generator has been developed that directly enables purely duty cycle controlled digital mass filters. This waveform generator operates by the comparison of a periodic waveform and a DC level to produce a digital waveform. The improved duty cycle realized by this method of waveform generation is demonstrated by producing a mass spectrum of electro-sprayed lysozyme by varying the duty cycle of a digital waveform applied to a quadrupole rod set. Operation and control of the waveform generator using an inexpensive open-source microcontroller is discussed. Published by AIP Publishing.
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