• M i = 1 Z ac Z i j Z i k Z j k {\displaystyle M_{i}={\sqrt {{\frac {1}{Z_{\text{ac}}}}{\frac {Z_{ij}Z_{ik}}{Z_{jk}}}}}} The electrical transfer impedance is determined during the calibration procedure by measuring the current and voltage and the acoustic transfer impedance depends on the acoustical coupler. (wikipedia.org)
  • About three years ago, Trafag decided to set up an independent inhouse calibration laboratory, with the aim of advancing quality assurance. (trafag.com)
  • The strict requirements of the Swiss Accreditation Service SAS were successfully met: The pressure calibration laboratory now complies with standard SN EN ISO/IEC 17025 and has been given the accreditation number SCS 0156. (trafag.com)
  • For Trafag, the advantage of having its own calibration laboratory is that there is no transport with potential transport damage and a resulting loss of accuracy for the measuring equipment, a core element in the production of pressure transmitters. (trafag.com)
  • If the measuring equipment is tested by an external calibration laboratory, it will not be available for up to three months. (trafag.com)
  • Trafags calibration laboratory receives the certificate of the Swiss Accreditation Service SAS and thus the authorization to perform pressure calibrations: The accreditation by the SAS formally recognises the competence of a body to carry out conformity assessments according to specified requirements. (trafag.com)
  • Microphone calibration by certified laboratories should ultimately be traceable to primary standards a (National) Measurement Institute that is a signatory to International Laboratory Accreditation Cooperation. (wikipedia.org)
  • These could include the National Physical Laboratory in the UK, PTB in Germany, NIST in the USA and the National Measurement Institute, Australia, where the reciprocity calibration (see below) is the internationally recognised means of realising the primary standard. (wikipedia.org)
  • Laboratory standard microphones calibrated using this method are used in-turn to calibrate other microphones using comparison calibration techniques ('secondary calibration'), referencing the output of the 'test' microphone against that of the reference laboratory standard microphone. (wikipedia.org)
  • The laboratory calibration process used a series of calibrated resistance temperature detectors to measure the temperature of a black body at different ambient temperatures to derive calibration equations for the thermal data acquired by the three sensors. (mdpi.com)
  • Our independent laboratory provides a quality, confidential service designed to meet current trading needs which enable you to compete in the marketplace. (durham.gov.uk)
  • All calibrations carried out by the laboratory are traceable to UK national standards and are therefore suitable for quality assured systems under BS/EN/ISO 9000. (durham.gov.uk)
  • The Digital Measuring Instruments Calibration Laboratory Software supports labs based on the NI Engineering Laboratory Virtual Instrumentation Suite (NI ELVIS) II. (ni.com)
  • The Digital Measuring Instruments Calibration Laboratory Software is a software add-on for LabVIEW that helps students become familiar with the calibration of digital electrical measuring instruments. (ni.com)
  • You also can use the Digital Measuring Instruments Calibration Laboratory Softwaree to view graphical representations of your experiment results or export the results in the Microsoft Excel file format. (ni.com)
  • Type-testing will be carried out by an independent ISO/IEC 17025 testing laboratory, accredited by WHO. (who.int)
  • A torque calibration device is developed to realize the calibration of the torque measurement system. (hindawi.com)
  • The readings of the torque calibration device are compared with the data of the instrument's torque measurement system to realize the instrument's torque calibration. (hindawi.com)
  • The parameters of the RBF neural network are settled according to the characteristics of the additional torque and the torque calibration results. (hindawi.com)
  • The experimental results show that the torque measurement accuracy of the torque measurement system can reach 0.1% FS after torque calibration and error compensation. (hindawi.com)
  • Two independent lateral force calibration methods for the atomic force microscope, the Hammerhead (HH) technique and the diamagnetic lateral force calibrator (D-LFC), are systematically compared and found to agree to within 14 % overall uncertainty, using four different T-shaped HH reference probes. (nist.gov)
  • Position detection with high accuracy is crucial for force calibration of optical trapping systems. (nature.com)
  • Reciprocity calibration is currently the favoured primary standard for calibration of measurement microphones. (wikipedia.org)
  • 5.2.1 To indicate to the party or agency performing the verification when the mathematical relationship between the in-place density reading indicated by the gauge and the corresponding gauge density test count needs to be adjusted so that the gauge measurement errors do not exceed the specified absolute maximum measurement error for the calibration method used. (astm.org)
  • The dosimetry system calibration is part of the user's measurement management system. (astm.org)
  • Our experts use their understanding of DC and LF measurement and uncertainties to provide guidance on primary standards, calibration of equipment, support to the health and safety bodies, technical consultancy and expert witness services. (npl.co.uk)
  • and (3) the measurements must be validated with independent instruments and models. (spie.org)
  • A new method for calibration of sodar wind speed measurements is described. (ametsoc.org)
  • Subsequently three independent measurements of the test item were performed. (europa.eu)
  • The calibration and performance of the TIMED Solar EUV Experiment (SEE), which has been measuring the solar EUV irradiance since early 2002, will be discussed in relation to these calibration objectives. (spie.org)
  • Currently, there is only a limited number of accredited testing laboratories in Switzerland that are authorized to perform pressure calibrations. (trafag.com)
  • This service is offered by some microphone manufacturers and by independent testing laboratories. (wikipedia.org)
  • We work with national laboratories and NMIs to develop their own standards and calibration services. (npl.co.uk)
  • General requirements for the competence of testing and calibration laboratories. (who.int)
  • Our accreditation provides an independent benchmark for technical competence. (nata.com.au)
  • Visible in this natural-color composite are the Mastcam-Z primary-color and grayscale calibration target (the colorful circular object at right foreground) as well as the camera's secondary calibration target (the small colorful L-bracket just below the primary target). (nasa.gov)
  • It is truly important that people that are new to any type of secondary calibrations study some fundamental s about it. (impublications.com)
  • The pre-flight calibrations of SEE are based on calibrated synchrotron sources at the National Institute for Standards and Technology (NIST) Synchrotron Ultraviolet Radiation Facility (SURF). (spie.org)
  • The in-flight calibrations for SEE are based on redundant channels used weekly and annual suborbital rocket flights with the prototype SEE instruments that are calibrated before and after each launch at NIST SURF. (spie.org)
  • The service is available to all industries needing calibration which are traceable to UK national standards and are therefore suitable for quality assured systems under BS/EN/ISO 9000. (durham.gov.uk)
  • Upon calibration, all systems demonstrated significant improvement in measured surface temperatures when compared against a temperature modulated black body target. (mdpi.com)
  • Precise detection of the trapped particle position is crucial for trapping stiffness calibration. (nature.com)
  • Biomass and yield overestimation resulting from the use of the minimum data input calibration suggests that other parameters (water productivity, canopy sensitivity to water stress and water stress coefficient) are required to improve canopy and yield predictions for sorghum genotypes. (scielo.org.za)
  • During the Phase I effort, key issues of sensitivity and calibration were to be explored and a prototype monitor for lead constructed and tested. (cdc.gov)
  • When performing a calibration, the preparation takes the most time: finding the right calibration panel, aligning the vehicle, and manually transferring the data to the diagnostic tool. (mahle-aftermarket.com)
  • Upon building the calibration data set, I have 5 NIR spectra for each concentration and I set the average of the reference results by HPLC as the reference value for the 5 spectra without considering the established variation within the 5 units. (impublications.com)
  • The relatively good simulations produced by the minimum data input calibration confirm AquaCrop's simplicity and suitability for use in places where extensive datasets may be unavailable. (scielo.org.za)
  • For model calibration, one changes model parameters and even coding in order to obtain accurate prediction versus observed data. (scielo.org.za)
  • On the other hand, testing is the process whereby the model is run against independent data, without any modification of model parameters or code. (scielo.org.za)
  • 2012). A major distinguishing feature of AquaCrop is its simplicity, the ability to use minimum data inputs during calibration to produce reliable estimates of crop growth and yield response to water availability (Raes et al. (scielo.org.za)
  • 2012). The use of the minimum data input for calibration was an attempt to improve uptake and use of crop models, particularly in developing countries where access to extensive datasets is limited. (scielo.org.za)
  • Several approaches were attempted for harmonizing the 2003-2006 25(OH)D. A model based on RIA quality control pool data was selected because the results should be independent of any empirical trend in the sample participant data. (cdc.gov)
  • These controls include a program that addresses requirements for calibration of routine dosimetry system. (astm.org)
  • 1.4 This document is one of a set of standards that provides recommendations for properly implementing dosimetry in radiation processing, and describes a means of achieving compliance with the requirements of ASTM E2628 "Practice for Dosimetry in Radiation Processing" for the calibration of routine dosimetry systems. (astm.org)
  • nificance of individual coefficients in the en, bone mineral status is much more Daily routine calibration was done model was assessed by the Hosmer- closely associated with total body fat using the standard phantom supplied Lemeshow test for goodness of fit and [4] and in a multivariate model total fat by the manufacturer. (who.int)
  • 5.1.1 When necessary, to compute the calibration constants of a density calibration equation that relates the gauge density system response (the "density count") to the soil-equivalent density of the standard on which this response is elicited. (astm.org)
  • 5.1.2 When necessary, to compute the calibration constants of a water content calibration equation that relates the gauge water content system response (the "water content count") to the water mass per unit volume value of the standard on which this response is elicited. (astm.org)
  • 5.2.3 Gauge verification and calibration require specialized training and equipment. (astm.org)
  • Gauge calibration and verification are best conducted by those trained in the proper operation of the gauge, the calibration standards, and any tables, charts, graphs, or computer programs required for the proper execution of these operations. (astm.org)
  • 1. (No institution specified): Devise a technique to verify MFC performance that is independent of the process chamber. (nist.gov)
  • The measured fragmentation-induced K-atom absorbance was correlated to KOH and KCl concertation through a calibration process in a homogenous combustion environment where the concentrations of KOH and KCl were monitored by UV absorption spectroscopy. (lu.se)
  • Application of models by non-research end users (farmers, policy makers and extension services) remains a key challenge as models usually require extensive and difficult to obtain datasets for calibration (Hoogenboom et al. (scielo.org.za)
  • Multiple regression is an extension of this technique, in which more than one independent variable is used to describe a single, continuous dependent variable. (medscape.com)
  • Inspection Engineering is a full service gage house that provides dimensional measuring products, services, and calibration. (qualitymag.com)
  • This allows independent workshops to expand the services they can offer. (mahle-aftermarket.com)
  • Mastcam-Z, a pair of zoomable cameras aboard NASA's Perseverance rover, imaged its calibration target for the first time on Feb. 20, 2021, the second Martian day, or sol, of Perseverance's mission. (nasa.gov)
  • In addition, the clear water scattering values are also sometimes less than and sometimes greater than those measured by the manufacturer at the time of last calibration (October 2006). (bodc.ac.uk)
  • With the new 2.0 generation, we're reducing the calibration time even further and helping workshops to save time. (mahle-aftermarket.com)
  • With the MAHLE TechPRO® Digital ADAS, the time required for calibration is reduced to under a minute. (mahle-aftermarket.com)
  • This meant that starting and stopping all at the same time could reduce utilization of the tester, and it made sense to have independent and parallel operation. (viewpointusa.com)
  • Decision curve analysis (DCA) showed limited net benefit in the detection of csPCa, but that can be improved by a simple calibration step. (medscape.com)
  • Numerical calibration results of canonical representations to the market term structure of interest rates are presented and compared with the classical CIR model. (arxiv.org)
  • Results SBQ-LC (version 1.0) is a modular instrument measuring patient reported outcomes and is composed of 17 independent scales with promising psychometric properties. (bmj.com)
  • For physical attributes I made 20 formula of the same product and I made calibration for disintegration and comparative dissolution results with the corresponding NIR spectra. (impublications.com)
  • After this I will make calibration and validation with both leave one out cross validation and true validation with unknown samples to me. (impublications.com)
  • I am building a calibration model to predict the assay of a pharmaceutical product. (impublications.com)
  • We aimed to address this lack of information by evaluating the performance (discrimination, calibration, and clinical impact) of the most well-known RCs developed to predict prostate biopsy outcome in a head-to-head comparison. (medscape.com)
  • Researchers use multiple independent variables (eg, age, injury severity) to predict the dependent variable (or outcome). (medscape.com)
  • There are two independent ways in which forecast quality can be measured, and you need to consider both - calibration and sharpness - to get a satisfactory understanding of your forecast's performance. (blueyonder.com)
  • Is calibration all there is to forecast quality? (blueyonder.com)
  • The calibration unit ASGU-370P will be used for the dynamic and continual manufacture of zero and span gas to perform among other things all ongoing quality control procedures according EN 14211, EN 14212, EN14626 and EN 14625. (horiba.com)
  • Quality Calibration Service Inc. (qualitymag.com)
  • The service is also an EC Approved Body (No. 0520) for the calibration and approval of EC Approved Weighing Equipment and Liquid Fuel Measuring Instruments under the Measuring Instruments Directive. (durham.gov.uk)
  • Indeed, we propose an automatic model selection approach which is particularly appropriate when we observe/collect several independent replicates of the error signal of interest. (ion.org)
  • This estimator provides by construction a tradeoff between model fit and model complexity, therefore allowing rank all candidate models and select the one (or the ones) that appears to be the most appropriate for the task of stochastic sensor calibration. (ion.org)
  • All scans were performed by regression model was done for detec- more body fat have lower rates of bone trained physicians and analysed by the tion of the independent risk factors resorption (an independent predictor researcher. (who.int)
  • The Mastcam-Z investigation is led and operated by Arizona State University in Tempe, working in collaboration with Malin Space Science Systems in San Diego, California on the design, fabrication, testing, and operation of the cameras, and in collaboration with the Neils Bohr Institute of the University of Copenhagen on the design, fabrication, and testing of the calibration targets. (nasa.gov)
  • MAHLE Aftermarket speeds up the calibration of driver assistance systems with its new TechPRO® Digital ADAS 2.0. (mahle-aftermarket.com)
  • With the first generation of its TechPRO® Digital ADAS, MAHLE had already made the first two steps significantly faster than conventional systems by using digital calibration panels and laser-based system alignment. (mahle-aftermarket.com)
  • However, these systems are characterized by sensor errors that can affect the navigation precision of these devices and consequently a proper calibration of the sensors is required. (ion.org)
  • To also allow for other errors, such as calibration forming techniques have been proposed (see, e.g., [12], [13] errors, we combine these flat ellipsoids with a higher-dimension and the references therein). (lu.se)
  • Since we don't have any clue on the range over which the calibration was done, about the nature of the product I can't comment any more, because any suggestion I would make would be presumptous on my part, and I have only been doing NIR for 21 years. (impublications.com)
  • Harding G. F. A. and Binnie, C.D., Independent Analysis of the ITC Photosensitive Epilepsy Calibration Test Tape. (w3.org)
  • In a very simple experiment, the effective beam zenith angle has been found to within around 0.2°, which is as good as is required in the most stringent sodar calibration procedures. (ametsoc.org)
  • RÉSUMÉ Pour vérifier l'hypothèse selon laquelle les graisses localisées et non le poids corporel total ont un effet protecteur sur la densité minérale osseuse des femmes ménopausées, une étude transversale a été menée entre mars 2008 et juin 2009 sur 303 femmes ménopausées en bonne santé consultant le service de soins de l'ostéoporose à des fins de dépistage. (who.int)
  • Performance was assessed by discrimination, calibration and net benefit analyses. (medscape.com)
  • Calibration errors the performance of an adaptive beamformer. (lu.se)
  • The focus of this paper is related to the second of such calibration procedures. (ion.org)
  • One of the country's largest independent dimensional calibration labs, we can provide accredited, long form NIS. (qualitymag.com)
  • The white square plate containing a grid of circular colored disks mounted farther to the aft on the rover is the calibration target for the SuperCam instrument. (nasa.gov)
  • Supply one sample thermometer complete with wall plugs and fixing screws, installation and operating instructions in English language, and a calibration certificate. (who.int)