| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 4.75 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
A presente dissertação foi desenvolvida nas instalações do laboratório de massa da extinta Direção
Regional da Economia do Norte (DRE-Norte), no âmbito da unidade curricular de
Dissertação/Projeto/Estágio Profissional (DPEPR) do curso de Mestrado de Instrumentação e
Metrologia (MEIM) do Instituto Superior de Engenharia do Porto (ISEP).
O laboratório de massa da DRE-Norte dedicava-se, entre outras atividades, à calibração de pesos das
classes de exatidão F1 e inferior, definidas na recomendação R111-1:2004 da Organização
Internacional de Metrologia Legal (OIML), para valores nominais desde 1 mg até 1 000 kg.
Foi implementado um sistema real de calibração de pesos utilizando dois comparadores de massa,
com interface de comunicação de dados, com fios e sem fios, para o PC (Personal Computer), com
aquisição automática dos dados.
Desenvolveu-se uma aplicação informática em Visual Basic com o objetivo de ligar os dois
comparadores de massa ao PC e automatizar o processo de calibração de pesos com base no método
ABBA.
O software desenvolvido foi aplicado num caso real de calibração de pesos em ambiente de
intercomparação laboratorial com a participação de sete laboratórios nacionais, entre os quais, o
laboratório de massa da DRE-Norte.
This essay was developed in the mass laboratory facilities of the extinct Direção Regional da Economia do Norte (DRE-Norte), in the context of my Dissertation / Project / Traineeship (DPEPR) Master's course of Instrumentation and Metrology (MEIM) at the the Instituto Superior de Engenharia do Porto (ISEP). The mass laboratory of DRE-Norte was dedicated, among other activities, to the calibration of F1 accuracy classes of weights and lower, as defined by the recommendation R111-1:2004 of the International Organization of Legal Metrology (OIML), for nominal values from 1 mg to 1 000 kg. A real world calibration system using two laboratory mass comparators, with wired and wireless data communication interfaces to the PC (Personal Computer) for automatized data acquisition, was implemented. A Visual Basic based software application was developed in order to connect the mass comparators to the PC and automatize the metrological ABBA process of mass calibrations The developed software has been applied in a real world context of weights calibration in an intercomparision laboratory environment with the participation of seven national laboratories as well as in the mass laboratory of DRE-Norte.
This essay was developed in the mass laboratory facilities of the extinct Direção Regional da Economia do Norte (DRE-Norte), in the context of my Dissertation / Project / Traineeship (DPEPR) Master's course of Instrumentation and Metrology (MEIM) at the the Instituto Superior de Engenharia do Porto (ISEP). The mass laboratory of DRE-Norte was dedicated, among other activities, to the calibration of F1 accuracy classes of weights and lower, as defined by the recommendation R111-1:2004 of the International Organization of Legal Metrology (OIML), for nominal values from 1 mg to 1 000 kg. A real world calibration system using two laboratory mass comparators, with wired and wireless data communication interfaces to the PC (Personal Computer) for automatized data acquisition, was implemented. A Visual Basic based software application was developed in order to connect the mass comparators to the PC and automatize the metrological ABBA process of mass calibrations The developed software has been applied in a real world context of weights calibration in an intercomparision laboratory environment with the participation of seven national laboratories as well as in the mass laboratory of DRE-Norte.
Description
Keywords
Aquisição de dados Medição Erro Incerteza Metrologia Calibração Rastreabilidade Data acquisition Measurement Error Uncertainty Metrology Calibration Traceability