What does TOF mean in NASA?
This page is about the meanings of the acronym/abbreviation/shorthand TOF in the Governmental field in general and in the NASA terminology in particular.
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What does TOF mean?
- Time of flight
- Time of flight describes a variety of methods that measure the time that it takes for an object, particle or acoustic, electromagnetic or other wave to travel a distance through a medium. This measurement can be used for a time standard, as a way to measure velocity or path length through a given medium, or as a way to learn about the particle or medium. The traveling object may be detected directly or indirectly. ⁕In electronics, the TOF method is used to estimate the electron mobility. Originally, it was designed for measurement of low-conductive thin films, later adjusted for common semiconductors. This experimental technique is used for metal-dielectric-metal structures as well as organic field-effect transitors. The excess charges are generated by application of the laser or voltage pulse. ⁕In time-of-flight mass spectrometry, ions are accelerated by an electrical field to the same kinetic energy with the velocity of the ion depending on the mass-to-charge ratio. Thus the time-of-flight is used to measure velocity, from which the mass-to-charge ratio can be determined. The time-of-flight of electrons is used to measure their kinetic energy.