A5034860209- Calibration and Measurement Techniques
- Advanced Sensor Technologies Research
- Scientific Measurement and Uncertainty Evaluation
- Sensor Technology and Measurement Systems
- Chemical Thermodynamics and Molecular Structure
- Atmospheric Ozone and Climate
- Radiative Heat Transfer Studies
- Advanced Thermodynamics and Statistical Mechanics
- Phase Equilibria and Thermodynamics
- Infrared Thermography in Medicine
- Knowledge Societies in the 21st Century
- Microbial Inactivation Methods
- Thermoregulation and physiological responses
- nanoparticles nucleation surface interactions
- Indoor Air Quality and Microbial Exposure
- Advanced Physical and Chemical Molecular Interactions
- Urban Heat Island Mitigation
- Thermodynamic properties of mixtures
- Atmospheric chemistry and aerosols
- Spectroscopy and Laser Applications
- Food Drying and Modeling
- Freezing and Crystallization Processes
- Thermography and Photoacoustic Techniques
- Space Exploration and Technology
- Medical research and treatments
Instituto Nacional de Metrologia, Qualidade e Tecnologia
2007-2015
National Metrology Center
1996-2015
Centro Medico Nacional Siglo XXI
2007
Universidad Autónoma Metropolitana
1983-2000
The triple point of water serves to define the kelvin, unit thermodynamic temperature, in International System Units (SI). Furthermore, it is most important fixed Temperature Scale 1990 (ITS-90). Any uncertainty realization contributes directly measurement over wide temperature range from 13.8033 K 1234.93 K. Consultative Committee for Thermometry (CCT) decided at its 21st meeting 2001 carry out a comparison cells and charged BIPM with organization. Water 20 national metrology institutes...
Body temperature is an important parameter in medical practice, and most of health diagnoses are made based upon measured values. Non-contact measurements attractive to both patients physicians, ear thermometers (ET) part the set infrared for applications. ETs sense tympanic membrane which best represents body temperature. They take advantage natural high effective emissivity cavity that formed as radiation source. To calibrate or check performance ETs, we designed a high-emissivity...
The reproducibility of some thermometric fixed points and the accuracy four platinum resistance thermometers (PRTs) were studied. It was found that aluminium (Al), zinc (Zn), tin (Sn), indium (In) gallium (Ga) realized reproducibly within ±0.17 mK; ±0.11 ±0.10 ±0.13 mK ±0.12 mK, respectively. Because actual impurities their concentration in our samples (of 99.9999% or 99.999 99% purity) are unknown, systematic uncertainty due to cannot be estimated. However, any Ga, In, Sn, Zn Al is...
Type K thermocouples are one of the most commonly used temperature sensors in industry. The skills, personnel, and facilities necessary for calibrating type also applicable to calibration other base metal thermocouples, and, a lesser extent, platinum?rhodium alloy thermocouples. Under auspices Inter-american Metrology System (SIM), National Institute Standards Technology (NIST) initiated regional comparison from 100 ?C 1100 ?C, with 11 participating countries. use material above...
The realizations of the fixed points International Temperature Scale 1990 (ITS-90) maintained in Canada and Mexico were compared between -38 °C 420 °C, using a portable fixed-point realization apparatus. In this range, routinely realized defining ITS-90 these countries found to coincide within 0,5 mK.
Main text A collapsed star type S thermocouple intercomparison was performed over the International Temperature Scale of 1990 (ITS-90) temperature range from 0 °C to 1100 °C. This an Inter-American Metrology System (SIM) regional piloted by National Institute Standards and Technology (NIST). Eleven laboratories (including NIST) participated in intercomparison. Twenty-one thermocouples were constructed calibrated at NIST, which ten served as transfer standards. The identified Cut 1 through...
An International Comparison on industrial platinum resistance thermometers (PRTs) among the National Metrology Institutes (NMIs) of Spain, Mexico and Andean Countries (Bolivia, Colombia, Ecuador, Peru Venezuela) began in 2004 was successfully completed 2005. Two PRTs were circulated (hand-carried) compared from −40 °C up to 250 °C. The Centro Espanol de Metrologia (Spanish NMI), CEM, pilot laboratory Nacional (Mexican CENAM, co-pilot laboratory. This report presents results this comparison...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation D. Cárdenas-García, E. Méndez-Lango; The influence of the spectral emissivity flat-plate calibrators on calibration IR thermometers. AIP Conf. Proc. 11 September 2013; 1552 (1): 752–756. https://doi.org/10.1063/1.4819636 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers...
We present the results of design, construction, filling and test thermometric cell, to reproduce triple point mercury in Temperature Laboratory Centro Nacional de Metrología Panamá AIP (CENAMEP AIP). This cell will be included group cells laboratory. With this CENAMEP-AIP is covering −39 °C 660 range. new offers opportunity primary temperature defined by ITS-90 −38.8344 ° C, was built with 0.68 kg ultra-pure certified National Institute Standards Technology from United States (NIST-EEUU)....
An international comparison on semi-standard Platinum Resistance Thermometers (PRTs) among the National Metrology Institutes (NMIs) of Spain, Mexico and Andean Countries (Bolivia, Colombia, Ecuador, Peru Venezuela) began in 2004 was successfully completed 2005. Two PRTs were circulated (hand carried) compared from −40 °C up to 250 °C. The Centro Español de Metrología (Spanish NMI), CEM, pilot laboratory Nacional (Mexican CENAM, co-pilot laboratory. This paper shows details final results as...
One method to detect extraneous water in milk is through cryoscopy. This used measure the freezing point of milk. For calibration a cryoscope there are set standardized solution with known points values. These values related solute concentration, based almost century old data; it was no found recent results. It that reference not certified temperature: they do have traceability temperature unit or standards. We prepared four solutions and measured them on an adiabatic calorimeter. results...
Main text The comparison of the realization International Temperature Scale 1990 (ITS- 90) over range 234,315 6 K (triple point mercury) to 993,473 (freezing aluminium) in National Metrology Institutes Spain (Centro Español de Metrología - CEM) and Colombia (Instituto Nacional INM) has been organized with aim provide support Calibration Measurement Capabilities claimed by INM this range. Due participation CEM regional EUROMET.T-K9, linkage corresponding key comparison, CCT-K9, is possible....