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dc.contributor.authorHussain, Tariq
dc.contributor.authorKaialy, Waseem
dc.contributor.authorDeng, Tong
dc.contributor.authorBradley, Mike S A
dc.contributor.authorNokhodchi, Ali
dc.contributor.authorArmour-Chélu, David
dc.date.accessioned2015-08-25T13:57:33Zen
dc.date.available2015-08-25T13:57:33Zen
dc.date.issued2013-01-30
dc.identifier.citationA novel sensing technique for measurement of magnitude and polarity of electrostatic charge distribution across individual particles. 2013, 441 (1-2):781-9 Int J Pharm
dc.identifier.issn1873-3476
dc.identifier.pmid23064131
dc.identifier.doi10.1016/j.ijpharm.2012.10.002
dc.identifier.urihttp://hdl.handle.net/2436/575937
dc.description.abstractElectrostatic charge is generated during powder handling due to particle-particle and particle-wall collisions, rubbing, sliding, and rolling. In case of bipolar charge generation, the electrostatic forces may significantly change the inner forces and increase powder adhesion and cause a serious problem in material handling process. Therefore, the knowledge of distribution of charge across the individual particles is helpful to identify the role of triboelectrification and the effects of various relevant variables especially change in the contact materials, environmental conditions during processing, etc. A novel approach based on inductive sensor has been developed to detect the either polarity of charged particle and to characterise the bipolar charge distribution in the population of particulate material. To achieve this, an amplification unit configured as a pure integrator and signal processing techniques has been used to de-noise and correct the baseline of signal and MATLAB algorithm developed for peak detection. The polarity of charged particles obtained by this method is calibrated with Faraday pail method and the results are promising. Experimental study has been carried out by using two distinct populations of oppositely charged particles (glass beads-PVC, olivine sand, and silica sand). The obtained results indicate that the method is able to detect the distribution of polarities of charged particles.
dc.language.isoen
dc.publisherElsevier
dc.subjectElectrostatic charge
dc.subjectPowder
dc.subjectBlending
dc.subjectInductive sensor
dc.subjectBipolar charge
dc.subjectParticulate material
dc.subject.meshAdhesiveness
dc.subject.meshAlgorithms
dc.subject.meshGlass
dc.subject.meshIron Compounds
dc.subject.meshMagnesium Compounds
dc.subject.meshPolyvinyl Chloride
dc.subject.meshPowders
dc.subject.meshSilicates
dc.subject.meshSilicon Dioxide
dc.subject.meshStatic Electricity
dc.titleA novel sensing technique for measurement of magnitude and polarity of electrostatic charge distribution across individual particles.
dc.typeJournal article
dc.identifier.journalInternational journal of pharmaceutics
html.description.abstractElectrostatic charge is generated during powder handling due to particle-particle and particle-wall collisions, rubbing, sliding, and rolling. In case of bipolar charge generation, the electrostatic forces may significantly change the inner forces and increase powder adhesion and cause a serious problem in material handling process. Therefore, the knowledge of distribution of charge across the individual particles is helpful to identify the role of triboelectrification and the effects of various relevant variables especially change in the contact materials, environmental conditions during processing, etc. A novel approach based on inductive sensor has been developed to detect the either polarity of charged particle and to characterise the bipolar charge distribution in the population of particulate material. To achieve this, an amplification unit configured as a pure integrator and signal processing techniques has been used to de-noise and correct the baseline of signal and MATLAB algorithm developed for peak detection. The polarity of charged particles obtained by this method is calibrated with Faraday pail method and the results are promising. Experimental study has been carried out by using two distinct populations of oppositely charged particles (glass beads-PVC, olivine sand, and silica sand). The obtained results indicate that the method is able to detect the distribution of polarities of charged particles.


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