air mass flowmeters

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Time-of-flight — The time of flight (TOF) describes the method used to measure the time that it takes for a particle, object or stream to reach a detector while traveling over a known distance. In time of flight mass spectrometry, ions are accelerated by an… … Wikipedia
Flow measurement — is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive displacement flow meters acumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow. Other flow… … Wikipedia
Lab-on-a-chip — This article is about the technology. For the journal, see Lab on a Chip (journal). Lab on a chip made of glass A lab on a chip (LOC) is a device that integrates one or several laboratory functions on a single chip of only millimeters to a few… … Wikipedia

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