منابع مشابه
Yarn Tension PID Control of Air–Jet Texturing and Twisting Machine Using a Programmable Logic Controller (PLC)
This paper defines a PID type yarn tension control run by a PLC system that is used to control the yarn tension below the twisting head of the novel air jet texturing and twisting (AJT) machine. In the standard sequence of the AJT, if the yarn is transported to the twisting and winding head with a low tension value, the yarn is bound to wrap around the shoulder below the twisting head and break...
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In this paper, we present an interesting method to microfabricate a tilted micro air jet generator. We used the well-know deep reactive ion etching (DRIE) technique in order to realize in a silicon substrate a double side etching. For aircraft and cars, micro air jets will take an important place for fluid control. Micro air jets are characterized by their speed, frequency and tilt. Usually, th...
متن کاملAir-Jet Button Effects in AR
Providing haptic cues can generate increased levels of presence in users as they interact with tangible objects. In this paper, we present button effects delivered by air-jet displays with the aim of providing click-like sensations when virtual buttons in an AR environment are pressed. We derive the profile of the haptic output by measuring the force profile of real physical buttons. To validat...
متن کاملRole of air in granular jet formation.
A steel ball impacting on a bed of very loose, fine sand results in a surprisingly vigorous jet which shoots up from the surface of the sand [D. Lohse, Phys. Rev. Lett. 93, 198003 (2004)10.1103/PhysRevLett.93.198003]. When the ambient pressure p is reduced, the jet is found to be less vigorous [R. Royer, Nature Phys. 1, 164 (2005)10.1038/nphys175]. In this Letter we show that p also affects the...
متن کاملCabin air contamination problems in jet aircraft.
A IR or atmospheric pollution problems have increased many fold during the past few decades. Air pollution and its control have grown t o become factors of tremendous importance to the economy and health of many industrialized and urbanized communities. Air pollution has been defined as the excessive concentration of foreign matter in the air which adversely affects the well being of the indivi...
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ژورنال
عنوان ژورنال: Sen'i Gakkaishi
سال: 1998
ISSN: 0037-9875,1884-2259
DOI: 10.2115/fiber.54.5_p166