IMEKO Event Proceedings Search

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Omar-Jair Purata-Sifuentes, Luis-Eduardo Hernández-Balandrán, Mirna-Guadalupe Tornero-Navarro
ROLE OF THE MEASUREMENT UNCERTAINTY IN CONE PENETRATION TEST RESULTS OF LUBRICATING GREASE

The guard banding approach is tested to meet the NLGI grade of lubricating grease specifications. Different guard band formulae were tried to compare the customer and manufacturer risks during production release testing. The results show that the called risk management approach for guard banding offers the best results for the trade-off between the producer risk without compromising the targeted level of consumer risk for the particular case of symmetrical but high-preferred specifications limits.

Elvia-Andrea Purata-Funes, Omar-Jair Purata-Sifuentes, Luis-Armando Torres-Pérez, Ramón Navarrete-Reynoso
GUARD BANDING APPLIED IN THE LEGAL METROLOGY REQUIREMENTS OF WEIGHING INSTRUMENTS

The guard banding approach is tested to meet the legal requirements for NAWIs. Different guard band multipliers were tried to compare the customer and manufacturer risks when initial and subsequent verification or service inspection were done. The results show that the producer’s risk is always greater than the customer’s risk, no matter if the metrological control is for initial and subsequent verification or service inspection.

Haris Memić, Zijad Džemić, Jasmin Kevrić, Dejan Jokić
PREDICTION OF LIFE CYCLE OF NON-AUTOMATIC WEIGHING INSTRUMENT IN LEGAL METROLOGY

In this paper, the possibilities and important factors that can influence the prediction of the life time (life cycle) of a measuring instrument used in the field of legal metrology, which is found in everyday work and in different working conditions, are considered. Based on the measurement history and a large number of measurement results data, significant factors (history of measurements, different provider of services, measurement uncertainty and environmental conditions) that can influence the judgment of the life cycle of the measuring instrument were analysed. The presented results indicate the further research for development of a more efficient, faster and better system meant for consumer protection from inaccurate measurements.

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).

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