Low Cost Data Acquisition Module For Evaluating The Quantitative Performance Of Daylight Systems

dc.creatorCiampini F.
dc.creatorNeves A.A.R.
dc.creatorScarazzato P.S.
dc.date2005
dc.date2015-06-26T14:09:41Z
dc.date2015-11-26T14:09:45Z
dc.date2015-06-26T14:09:41Z
dc.date2015-11-26T14:09:45Z
dc.date.accessioned2018-03-28T21:10:19Z
dc.date.available2018-03-28T21:10:19Z
dc.identifier9953418691; 9789953418698
dc.identifier22nd International Conference, Plea 2005: Passive And Low Energy Architecture - Environmental Sustainability: The Challenge Of Awareness In Developing Societies, Proceedings. , v. 2, n. , p. 995 - 1000, 2005.
dc.identifier
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84864560952&partnerID=40&md5=2c9e2a53c873e3b522c2870cb209ace1
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/93861
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/93861
dc.identifier2-s2.0-84864560952
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1241317
dc.descriptionThe search for efficient, auto-sustainable constructions allowing the user to be in contact with the outer environment, has stimulated the development of advanced strategies, in various devices, for the exploitation of the daylight. A low cost data acquisition system was developed for this study, to observe the distribution of the natural light inside a prototype and to evaluate the quantitative performance for redirecting systems. The circuit connects to a standard parallel port of any Personal Computer, and supplies 64 analog inputs, one for each luminous sensor. The luminous sensor is a resistor (Light Dependent Resistor) that responds to the illuminance with a reduction in the resistance when illuminated, it was chosen due to the spectral similarity to the human eye. As part of the circuit, a voltage divider translates the change in resistance, due to incident light into a change of voltage. After that, calibration curves are setup to relate the output voltage measured as a function of illuminance. The system is controlled through a computer using an acquisition software written in C language. It therefore provides a continuous investigation of the illuminance with a 12-bit resolution and a conversion time under 10μs.
dc.description2
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dc.description1000
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dc.languageen
dc.publisher
dc.relation22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings
dc.rightsfechado
dc.sourceScopus
dc.titleLow Cost Data Acquisition Module For Evaluating The Quantitative Performance Of Daylight Systems
dc.typeActas de congresos


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