Particle removal by electrostatic and dielectrophoretic forces for dust control during lunar exploration missions

Calle, Carlos I.; Buhler, C. R.; McFall, J.L.; Snyder, Susan

doi:10.1016/j.elstat.2009.02.012

Cited by 181 publications

(88 citation statements)

References 8 publications

(9 reference statements)

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“…Active manipulation of the dust and spacecraft surface charge electrostatically, as well as other electrostatic or electrodynamic mitigation techniques (see Ref. 18 for an example) will likely also prove most effective at mitigating dust adhesion.…”

Section: Resultsmentioning

confidence: 99%

Adhesion in a Vacuum Environment and its Implications for Dust Mitigation Techniques on Airless Bodies

Berkebile

Gaier

2012

42nd International Conference on Environmental Systems

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Section: Resultsmentioning

confidence: 99%

Adhesion in a Vacuum Environment and its Implications for Dust Mitigation Techniques on Airless Bodies

Berkebile

Gaier

2012

42nd International Conference on Environmental Systems

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“…Accumulation of particles is particularly important for the maintenance of remote sensing applications, such as for autonomous robots, which cannot be easily accessed once deployed (Mazumder et al, 2003;Calle et al, 2008). Photovoltaic solar panels also accumulate dust, which results in annual reductions in efficiency of 6% (Kumar and Sarkar, 2013).…”

Section: Environmental Particles and Their Effect On Organisms And Dementioning

confidence: 99%

“…With prolonged exposure to environmental conditions, the sensitive equipment on drones and rovers are susceptible to failure due to soiling. After the Mars Exploration Rover experienced a blackout when its solar panels were covered in dust and dirt, technology was suggested to prevent such failures (Calle et al, 2008;Walton, 2008). One technology currently being pursued relies on electrostatic coatings, which generate fluctuating electrical forces to dislodge and remove deposited particles (Calle et al, 2008).…”

Section: Perspectivesmentioning

confidence: 99%

Cleanliness is next to godliness: mechanisms for staying clean

Amador

2015

Journal of Experimental Biology

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Getting dirty is a fundamental problem, and one for which there are few solutions, especially across the enormous range of animal size. How do both a honeybee and a squirrel get clean? In this Review, we discuss two broad types of cleaning, considered from the viewpoint of energetics. Non-renewable cleaning strategies rely upon the organism as an energy source. Examples include grooming motions, wet-dog shaking or the secretion of chemicals. Renewable cleaning strategies depend on environmental sources of energy, such as the use of eyelashes to redirect incoming wind and so reduce deposition onto the eye. Both strategies take advantage of body hair to facilitate cleaning, and honeybees and squirrels, for example, each have around 3 million hairs. This hair mat increases the area on which particles can land by a factor of 100, but also suspends particles above the body, reducing their adhesion and facilitating removal. We hope that the strategies outlined here will inspire energy-efficient cleaning strategies in synthetic systems.

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“…In current technology electrostatics finds wide application, among others in air purification systems (Allemann et al 1965), to fight dust deposition on the surfaces of equipment used for aerospace exploration missions (Calle et al 2008), for improvement of paper production printing technology and industrial book production, to enable non-contact lifting of deposited dust particles from sensitive surfaces (Eltex n.y.) and as efficient cleaning tools for housekeeping. Among the numerous tec hnological solutions the following three are mentioned as promising options to be tec hnically adapted and transferred to conservation practice:…”

Section: Electrostatic Surface Cleaningmentioning

confidence: 99%

A New Mass Scale Surface Cleaning Technology for Collections of Historical Maps

Becker¹,

Reikow-Räuchle²,

Banik³

2011

Restaurator

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Abstract:The Justus Perthes collection of historically valuable maps, dating from late 18 th century to the 1960s, was acquired in 2003 by the State of Thuringa and given to the University and Research Library Erfurt/Gotha. The collection consists of more than 185,000 objects, of which 90 % have a format equal to or smalle r than 96 by 135 cm. Only 10 % of the maps are much larger in format. The maps are etchings, drawings, lithographs and prints, many of them carrying valuable inscriptions in different media -pencil, crayon, chalk, water colour, gouache and writing ink of diverse composition. The whole collection suffered from contamination with dust particles with a particle size of ≤ 1µm that are harmful upon inhalation and therefore regarded as dangerous for users. To make the collections accessible, the dust contamination was to be diminished to values below the maximum threshold value. A new kind of equipment was engineered that automates the cleaning operation of maps. The cleaning operation could be performed with a speed of 80 it ems per hour based on a size of 1 m width and a 1.5 m length. Maps are hand fed into a machine, where surface soiling removal is realized by electrostatic foils that are brought in contact to both sides of the maps w ithout any slippage, thus avoiding mechanical impact on th e objects' surfaces. In the period from July 2008 to August 2010 about 177,000 individual items, that is 96 % of the collection, underwent successful sur face cleaning and currently are made accessible to r eaders. The automated cleaning exceeded the expectations as far as treatment efficiency and treatment quality is concerned. The risk of mechanical damage that resulted from failures in the feeding and transport system was with less than 0.04 % extremely low. Even fragile and brittle objects passed the system without any observable mechanical damage. The technique can therefore be regarded as having a very gentle impact on delicate materials, and offers in selected cases an alternative to the conventional manual surface cleaning of paper-based objects.

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Particle removal by electrostatic and dielectrophoretic forces for dust control during lunar exploration missions

Cited by 181 publications

References 8 publications

Adhesion in a Vacuum Environment and its Implications for Dust Mitigation Techniques on Airless Bodies

Adhesion in a Vacuum Environment and its Implications for Dust Mitigation Techniques on Airless Bodies

Cleanliness is next to godliness: mechanisms for staying clean

A New Mass Scale Surface Cleaning Technology for Collections of Historical Maps

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