Combined measuring equipment for testing acoustical measuring instruments in air

1974 ◽  
Vol 17 (7) ◽  
pp. 1063-1066
Author(s):  
D. Z. Lopashev ◽  
A. V. Kon'kov ◽  
S. V. Kuznetsov
Keyword(s):  
Measuring Equipment ◽  
Measuring Instruments ◽  
Acoustical Measuring

scholarly journals Step-by-step control of target efficiency indices of the control and measuring equipment stock applied in construction and housing and communal services

2018 ◽  
Vol 170 ◽  
pp. 01010 ◽  
Author(s):  
Rustam Khayrullin ◽  
Pavel Ivanov
Keyword(s):  
Mathematical Model ◽  
Finite Difference ◽  
Measuring Equipment ◽  
Technical Condition ◽  
Measuring Instruments ◽  
Finite Difference Equations ◽  
Target Values ◽  
The Mathematical Model ◽  
Step Control ◽  
Different Levels

The mathematical model is considered for the formation and implementation of development strategies of the stock of control and measuring instruments (CMI) applied in construction and housing and communal services(HCS), and step-by-step control of efficiency target values of the stock. The model is based on a system of finite - difference equations describing the change of number of the CMI samples with different levels of technical perfection and technical condition at each planning interval. The model allows calculating the required number of CMI for procurement and repairs in the various groups for provide target values of efficiency indices at each planning interval. Controller is number of modern CMI samples for procurement and number of modern and obsolete faulty CMI samples for the repairs. The results of calculations are presented.

scholarly journals Metrological Activity At the Enterprise

2020 ◽  
pp. 40-43 ◽  
Author(s):  
O. M. Dziabenko
Keyword(s):  
Quality Management ◽  
Measuring Equipment ◽  
International Standards ◽  
Management Systems ◽  
Measuring Instruments ◽  
Quality Management Systems ◽  
Uniformity Of Measurements ◽  
Calibration And Verification ◽  
Monitoring And Measurement ◽  
Metrological Requirements

When organizing metrological activity at an enterprise, the question arises of the need to organize verification (metrological confirmation) of measuring equipment that is not used in the field of legislatively regulated. In the international standards «Quality Management Systems» (ISO 9001, EN 9100, AQAP-2110), to ensure that the requirements of Section 7.1.5 «Resources for Monitoring and Measurement» are met, the requirement is established that all measuring equipment, as part of a measurement management system, must have metrological confirmation in accordance with the requirements of ISO 10012. Metrological confirmation provides for the calibration and verification of measuring equipment. Laboratory specialists who carry out metrological confirmation of measuring instruments, establish a relationship between the values of the values that provide the standards, and the result of measuring this quantity using measuring instruments (carry out calibration), based on this ratio establish the conformity / non-compliance of the measuring instruments with the established requirements (carry out verification) and draw up the corresponding supporting document. After comparing the concepts of metrological confirmation and verification of measuring instruments, we can conclude that metrological confirmation (calibration and verification) of measuring equipment is essentially nothing more than verification of measuring instruments. Metrological activities to ensure the uniformity of measurements in enterprises should comply with the requirements of ISO 10012: 2003. This standard establishes general requirements and contains recommendations for the management of measurement processes and metrological confirmation of the suitability of measuring equipment, which is used to maintain and demonstrate compliance with metrological requirements. Compliance with the requirements set forth in the ISO 10012 standard makes it possible to ensure compliance with the measurement requirements and the management of measurement processes established by the international standards «Quality Management Systems».

Internet-Enabled Calibration

2011 ◽  
Vol 1 (1) ◽  
pp. 24-37
Author(s):  
Hrvoje Hegeduš ◽  
Marko Jurcevic ◽  
Roman Malaric
Keyword(s):  
Measuring Equipment ◽  
Financial Burden ◽  
Measured Data ◽  
The Internet ◽  
Measuring Instruments ◽  
Calibration System ◽  
Direct Control ◽  
Calibration Laboratory ◽  
Security Issues ◽  
Wide Range

Calibration of measuring instruments provides the confidence in measurements. It is the obligation of every laboratory to have its measuring equipment calibrated in regular intervals. This obligation means that the laboratory must send its equipment to the calibration laboratory every year or two depending on the calibration intervals. During this time the equipment is not available and this presents a financial burden to the laboratory of the customer. Since many of the modern instruments include some communication interfaces, it was made possible to create an Internet-enabled calibration system. This term encompasses a wide range of possible applications and services. The Internet-enabled calibrations must address several problems not present in standard calibrations, including security issues, since the equipment is not always under direct control of the calibration laboratory personnel who will sign the calibration certificate. As the traceability and integrity of the calibration process directly depends on the measured data, the reliable and secure remote control and monitoring of instruments must be a crucial aspect of Internet-enabled calibration technologies.

AN OVERVIEW OF IMPORTANT FACTORS TO CONSIDER WHEN CALIBRATING LEDS IN PHOTOMETRY WITH DIFFERENT DETECTORS

2021 ◽  
Author(s):  
T. Gerloff ◽  
L. Ulm ◽  
P. Sperfeld ◽  
A. Sperling
Keyword(s):  
Measuring Equipment ◽  
Imaging Systems ◽  
Fluorescent Light ◽  
Measuring Instruments ◽  
Light Sources ◽  
White Leds ◽  
Advantages And Disadvantages ◽  
Measuring Devices ◽  
Double Monochromator ◽  
Physical Quantities

LED-based lighting products are the fastest developing light sources on the general lighting market. These include not only white light sources, but also coloured light sources. SI-traceable calibrations with a low measurement uncertainty are challenging because their unique spectral and geometric properties must be taken into account. The requirements on the measuring equipment and resulting uncertainty contributions differ significantly from those for the calibration of conventional incandescent or fluorescent light sources. Furthermore, different detector types can be used when calibrating LEDs. These include classic photometers, radiometers, spectroradiometers but also imaging systems such as ILMDs. Each of these measuring devices has its specific advantages and disadvantages. In this paper, traceable calibrations on 9 coloured and 9 white LEDs are discussed. Various array spectroradiometers, photometers, radiometers and a double monochromator were used for this purpose. Each of these measuring instruments is discussed in terms of its suitability for measuring different physical quantities (e.g. array spectrometer for measuring illuminance).

scholarly journals Supervision of measuring equipment based on risk management and ISO 9001

2018 ◽  
Vol 21 (21) ◽  
pp. 8-11
Author(s):  
Andrzej Pacana
Keyword(s):  
Risk Management ◽  
Matrix Method ◽  
Measuring Equipment ◽  
Requirements Analysis ◽  
Iso 9001 ◽  
Measuring Instruments ◽  
Measurement Equipment ◽  
Effective Management ◽  
The Matrix ◽  
Management Method

Abstract The study presents the results of analysis of the possibilities of measuring equipment supervision, taking into account the requirements of the ISO 9001: 2015 standard and risk management present there. As it has been shown, it is possible to use (mentioned in point 6.1 of indicated standard) a risk management method for skilfully managing a measuring equipment. Orientation of business to risk is one of the elements of the ISO 9001 standard, which does not specify exactly how the method of its implementation should looks like. Generally, it orders to manage risk wherever goals appear. The targets also appear in the field of supervision of measuring equipment. Therefore, in the elaboration, apart from the requirements analysis, the concept of a five-stage methodology for implementing a risk-based approach to management of measurement equipment was presented. The matrix method was used to assess the risk. Within this method two elements were assessed: probability and potential effects of the risk occurrence. Application of the proposed concept may contribute to a more efficient and effective management of measuring instruments.

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