Response time measurement of hygrometers at LNE-CETIAT

19th International Congress of Metrology (CIM2019) ◽

10.1051/metrology/201924001 ◽

2019 ◽

Author(s):

Eric Georgin

Keyword(s):

Response Time ◽

High Temperatures ◽

Time Measurement ◽

Test Rig ◽

Transient Conditions ◽

Humidity Generator ◽

Humidity Measurements ◽

Static Conditions ◽

Calibration Techniques ◽

Step Generator

LNE-CETIAT has been involved in European project JRP HIT – EMPIR (www.empir-hit.eu). The objectives of this project were to improve the accuracy of industrial humidity measurements, to provide new traceability capabilities and to develop new calibration techniques at high temperatures up to 180 °C and under transient conditions. Considering the last aspect, LNE-CETIAT has worked on the development of a humidity step generator for studying response time of hygrometers. Indeed, classical calibrations are performed under quasi-static conditions whilst the end users measurement conditions are, most of the time, non-static or dynamic. In order to tackle this situation, LNE-CETIAT has started to developed dynamic humidity generator which enables response time measurement by applying humidity step to the device under test. In this article the test rig is presented as well as results obtained with chilled mirror hygrometers. A discussion about response time of chilled mirror concludes this work.

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Towards improved humidity measurements at high temperatures and transient conditions

18th International Congress of Metrology ◽

10.1051/metrology/201706002 ◽

2017 ◽

Author(s):

Martti Heinonen ◽

Fausto Arpino ◽

Rien Bosma ◽

Laura Cavallarin ◽

Gino Cortellessa ◽

...

Keyword(s):

High Temperatures ◽

Transient Conditions ◽

Humidity Measurements

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Influence of surge impedance of the connecting lead in response time measurement of u.h.v. damped capacitive voltage dividers

Proceedings of the Institution of Electrical Engineers ◽

10.1049/piee.1977.0118 ◽

1977 ◽

Vol 124 (6) ◽

pp. 566

Author(s):

K. Dharmalingam ◽

B.I. Gururaj

Keyword(s):

Response Time ◽

Time Measurement ◽

Capacitive Voltage

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ERP Measures Assay the Degree of Expectancy Violation of Harmonic Contexts in Music

Journal of Cognitive Neuroscience ◽

10.1162/jocn.1995.7.2.153 ◽

1995 ◽

Vol 7 (2) ◽

pp. 153-164 ◽

Cited By ~ 85

Author(s):

Petr Janata

Keyword(s):

Response Time ◽

Behavioral Response ◽

Time Measurement ◽

Peak Latency ◽

Overt Response ◽

Expectancy Violations ◽

Expectancy Violation ◽

Data Analyses ◽

Probability Structure ◽

Musical Context

Expectancy violations of a highly constrained musical context were studied by presenting subjects with a chord sequence (I, IV, V) that generated a strong expectancy for a specific final chord, and then completing the sequence with either a “best-possible” (Tonic), harmonically plausible (Minor), or harmonically implausible (Dissonant) resolution. Subjects determined whether it was the best-possible resolution, and in one-half of the trials made their decision known with an overt response. Several ERP waveform components showed differences among resolution types, response conditions, and electrode locations. Among the affected components were two subclasses of the P300, the first of which (P3a) was largest in response to the Dissonant in both response conditions at all electrode sites. The area and peak amplitude of the P3b varied at several electrode sites as a function of the degree of expectancy violation represented by the resolutions. The peak latency of the P3b component reflected the behavioral response time measurement in which the Tonic and Dissonant were identified 300 msec more quickly than the Minor. A comparison between frequency and timedomain data analyses demonstrates several parallels, and it is concluded that both can serve to investigate the perception and processing of the probability structure underlying musical events and contexts.

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Response Time Estimation of a Web-Based Electronic Health Record (EHR) System using Queuing Model

Emerging Communication Technologies for E-Health and Medicine ◽

10.4018/978-1-4666-0909-9.ch022 ◽

2012 ◽

pp. 272-284

Author(s):

Isabel de la Torre Díez ◽

Francisco Javier Díaz Pernas ◽

Miguel López Coronado ◽

Roberto Hornero Sánchez ◽

María Isabel López Gálvez ◽

...

Keyword(s):

Response Time ◽

System Performance ◽

Response Times ◽

Time Estimation ◽

Time Measurement ◽

Queuing Model ◽

Web Based ◽

Queuing Models ◽

Web System ◽

Electronic Health

Response time measurement of a Web system is critically important to evaluate its performance. This response time is one of the main barriers usually found in the implementation of an effective Electronic Health Records (EHRs) system. The database selected will affect the system performance. This paper presents a comparison of the response times of a EHRs Web system, TeleOftalWeb, using different databases. In order to calculate these times, M/M/1 queuing models is used. Four databases were selected: Oracle 10g, dbXML 2.0, Xindice 1.2, and eXist 1.1.1. The final objective of the comparison is choosing the database system resulting in the lowest response time to TeleOftalWeb.

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