IMEKO Event Proceedings Search

Page 5 of 891 Results 41 - 50 of 8905

Tzvetelin Gueorguiev
MANAGEMENT FOR QUALITY AND INNOVATIONS

The purpose of this paper is to outline the advantages of integrating quality management systems with innovation management systems. The paper presents the chronology of ISO standards for management systems, the evolution from quality management systems based on ISO 9001 to innovation management systems based on ISO 56002. The discussion evolves into a summary of the lessons learned from the implementation of such systems. The conclusions highlight a number of opportunities for improvement and suggestions for practical implementation of innovation management systems in universities.

Szabolcs Benedek
VALIDATION OF NON-STANDARD PV (SOLAR) PANELS BY IEC 61215

The spreading of photovoltaic (PV) systems as solar panels can be seen around the entire world. The product authorisation and validation process in the case of standard size roof solar panels is a wellestablished practice, however there are an endless variety of non-standard size PV panels. The validation of such units is not always a standard and straightforward procedure, as it is not always clear whether a PV panel is an electrical device or a building material. This paper discusses a possible methodology of the validation of non-standard size PV elements according to the IEC 61215 standard [1].

A. B. Sotirov, B. M. Masheva, C. Tz. Gueorguev
STATIC METHOD FOR TAXIMETER VERIFICATION

The purpose of the paper is to represent a method for taximeter verification. Taximeters, as special measurement instruments, are subject to metrological control in order to protect the rights of taxi customers. The methodology applied for the theoretical study of the proposed method is derived from Measurement System Analysis, Root Cause Analysis, and similar taximeter verification methods applied in other European countries. The presented method is innovative for Bulgaria and about to be introduces for the need of metrological control.

P V S Chandra, N Bharathidasan, C R Jeevandoss
PERFORMANCE EVALUATION OF LED LAMP UNDER PULSE CURRENT MODE OPERATION

There are measurement challenges in measuring the lumens output of LED lamps under pulse current mode operation to evaluate the performance of LED lamps. This paper describes and validates integrating sphere measurements for lumens flux of LED lamp under pulse current mode operation. It also evaluates the performance of LED lamp dimming operation using pulse current mode operation

Kiril Demerdziev, Marija Cundeva-Blajer
METROLOGY AMBIGUITIES IN PROTOCOLS FOR TRANSCONDUCTANCE AMPLIFIER CALIBRATION BY USING HIGH CURRENT ENERGY COMPARATOR

The main metrological ambiguity in transducers’ calibration protocols establishment is whether the unit is going to be regarded as an integrated device in a measurement system, or it will be examined as a standalone instrument. This dilemma is related to the quantity selection on which the procedure development is based and later the measurement uncertainty modelling is performed. Another issue is the appropriate selection of measurement points which are going to embrace the full range of input signals transformation. The discussion is experimentally verified with a real case study considering trans-conductance amplifier calibration by using high current energy comparator.

G. Esteves Coelho, A. Ribeiro, J. dos Reis, C. Simões
INDUSTRY 4.0 LEGACY SYSTEMS INTEGRATION CASE STUDY

This paper presents a methodology for modern systems integration of a legacy infrastructure. Commissioned in 1992 this infrastructure is used for large/industrial flow meter calibration and R&DI in Hydrology and Hydraulics. A solution for linking legacy devices and hardware in a new distributed system architecture, that foster future upgrades and modernization of the infrastructure, is proposed. The presented case study aims to overcome, in the industry 4.0 era, the constrains and limitations of proprietary legacy field bus (Modbus Plus) and the monolithic SCADA legacy approach and to provide a modern system integration towards a distributed IIoT architecture.

V. Šimunović, G. Baršić
IMPLEMENTATION OF NOISE REDUCTION TO ROUNDNESS MEASUREMENT IN CROATIAN NATIONAL LABORATORY FOR LENGTH

Measurement devices for form and roughness use the measurement probe that converts the displacement into an electrical signal. In addition to the form/roughness information, the measurement signal can contain undesirable noise due to mechanical, electrical, thermal, and other influences that can lead to an error in the measurement result. Given the growing demands to reduce measurement uncertainty, especially in the form and roughness measurement, noise is a limiting factor. In 2019 the EMPIR project entitled Traceability for contact probe and stylus instrument measurements (18PRT01 ProbeTrace) was launched. This project aims to develop traceable and cost-effective measurement capabilities for the calibration of form and surface roughness standards with uncertainties in the range of 10 nm to 100 nm. To achieve targeted uncertainties, noise reduction software with numerical methods for random noise bias reduction must be developed to pre-process roughness and form profile data. The novel method that will be investigated in the ProbeTrace project is based on Random Noise Bias Removal, where only a few repeated measurements are needed to obtain unbiased results. Software based on random noise bias reduction will be presented in this paper, along with the results of applied noise reduction to roundness measurement data in the Croatian National Laboratory for Length (FSB).

Mare Srbinovska, Vesna Andova, Aleksandra Krkoleva Mateska, Maja Celeska Krstevska, Marija Cundeva-Blajer
ENVIRONMENTAL WIRELESS SENSOR MONITORING AND ESTIMATION OF GREEN INFRASTRUCTURE LOCATION IMPACT ON PARTICULATE MATTER REDUCTION FOR IMPROVED AIR QUALITY

Low quality of the air is becoming a major concern in urban areas. High values of particulate matter (PM) concentrations and various pollutants may be very dangerous for the human health and the global environment. The challenge to overcome the problem with the air quality includes efforts to improve healthy air not only by reducing emissions, but also by modifying the urban morphology to reduce the exposure of the population to air pollution. The aim of this paper is to analyze the influence of the green zones on air quality mitigation through measurements, and to identify the correlation with the meteorological factors.

A. Röttger, S. Röttger, D. Rábago, L. Quindós, K. Woloszczuk, M. Norenberg, I. Radulescu, A. Luca
BEYOND THE STATE OF ART: NEW METROLOGY INFRASTRUCTURE FOR RADON MEASUREMENTS AT THE ENVIRONMENTAL LEVEL

Radon gas is the largest source of public exposure to naturally occurring radioactivity. Radon activity concentration maps, based on atmospheric measurements, as well as radon flux maps can help Member States to comply with the EU Council Directive 2013/59/Euratom and, particularly, with the identification of Radon Priority Areas. Radon can also be used, as a tracer, to improve Atmospheric Transport Models and to indirectly estimate greenhouse gas (GHG) fluxes. This is important for supporting successful GHG mitigation strategies. One approach to estimate GHG fluxes on local to regional scale is the socalled Radon Tracer Method (RTM), which is based on the night-time correlation between atmospheric concentrations of radon and GHG measured at a given station together with information on the radon flux data within the station footprint. Thus, atmospheric monitoring networks are interested or are already measuring atmospheric radon activity concentrations using different techniques but a metrological chain to ensure the traceability of all these measurements was missing. Since 2020 a large consortium engaged in the project traceRadon [1] to develop the missing traceability chains to improve the respective sensor networks http://traceradon-empir.eu/ . This paper presents results in the areas: Novel 226Ra standard sources with continuous controlled 222Rn emanation rate, radon chambers aimed to create a reference radon atmosphere and a reference field for radon flux monitoring. The achieved results are making new calibration services far beyond the state of art possible.

D. Turinski, I. Svalina, R. Lujić, T. Šarić, G. Šimunović, S. Havrlišan
PROBLEMS OF SOFTWARE PROCESSING OF DIGITAL PHOTOGRAPHY INTENDED FOR DETERMINING THE DIMENSIONAL ACCURACY OF A PRODUCT

Some of the problems that arise during the processing of the acquired photo are analyzed in this paper. The most commonly used software tools in image processing require binary photography, and its conversion into the binary form is required first. Conversion problems, and their proper solution, are key steps for further machine determination of dimensional accuracy. Removing smudges on binary photos and rotating displays for photo overlap methods are the problems that are solved in the work, in order to successfully prepare the photo with software for further determination of the dimensional accuracy of the product. The knowledge gained in this paper will help scientists, and facilitate their.

Page 5 of 891 Results 41 - 50 of 8905