impactor


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Related to impactor: cascade impactor

impactor

[im′pak·tər]
(engineering)
A general term for instruments which sample atmospheric suspensoids by impaction; such instruments consist of a housing which constrains the air flow past a sensitized sampling plate. Also known as impactometer.
(mechanical engineering)
A machine or part whose operating principle is striking blows.
(mining engineering)
A rotary hammermill which crushes ore by impacting it against crushing plates or elements.
References in periodicals archive ?
These mobile impactors can be equipped with optional, highly productive secondary vibrating screen with extra-large screening surface mounted on the discharge conveyor.
as a result, the eu~s seniors project has undertaken initial basic investigations into a corresponding component test and a suitable impactor. the developed method should be refined, an improved impactor generated and the currently existing test and evaluation procedure adapted accordingly.
"The darker-colored inner blast pattern is because the impactor penetrated the thin ice layer, excavated the dark sand underneath, and threw it out in all directions on top of the layer," he continued.
The contestants will be mentored by leading executives in business, television, media, speaking and publishing over the course of the competition, leading into the finale, broadcasted live in the Chicagoland area, where The Next Impactor will be crowned.
The researchers' follow-up with colleagues, published online February 28th in the Journal of Geophysical Research: Planets, indicates that a synestia would have been the ultimate mixer, erasing chemical differences between the impactor and the impacted body.
The acquisition includes the automated ME1000 Surgical Impactor for use in hip replacement.
The authors of the study, published in the journalActa Astronautica,wrote: "The two realistic responses considered are the use of a spacecraft functioning as either a kinetic impactor or a nuclear explosive carrier to deflect the approaching NEO [near-Earth object]."
Taking into account the diameter of 3220m and density of 3.0 kg/[m.sup.3] of the impactor, a high impact velocity is expected because the Earth's atmosphere is not capable of retarding such a large mass (Heide and Wlotzka, 1995).
The 3D impactor system was firstly designed based on the spring slow compression-instant release principles, and the geometric model of a pelvis was established using CT images data.
'DART would be NASA's first mission to demonstrate what's known as the kinetic impactor technique - striking the asteroid to shift its orbit - to defend against a potential future asteroid impact,' Lindley Johnson, Planetary defence officer at NASA Headquarters in Washington, was quoted as saying in the report.
The Flex-PLI is an impactor intended to represent a 50th percentile male leg [3], [4].
In addition to static and linear impactor tests, effects of inflator variations were also investigated in the study.