نتایج جستجو برای: partial pressure sensor

تعداد نتایج: 801801  

Journal: :IEEJ Transactions on Electronics, Information and Systems 1989

Journal: :Applied optics 2010
Ritobrata Sur Thomas J Boucher Michael W Renfro Baki M Cetegen

A diode laser sensor was developed for partial pressure and temperature measurements using a single water vapor transition. The Lorentzian half-width and line intensity of the transition were calibrated for conditions relevant to proton exchange membrane (PEM) fuel cell operation. Comparison of measured and simulated harmonics from wavelength-modulation spectroscopy is shown to yield accuracy o...

Journal: :Industrial Robot 2008
SungHwan Ahn Nakju Lett Doh Wan Kyun Chung Sang Yep Nam

Purpose – The purpose of this paper is to describe research to enable a robust navigation of guide robots in erratic environments with partial sensor information. Design/methodology/approach – Two techniques were developed. One is a robust node discrimination method by using an adaptive sensor matching method. The other is a robot navigation technique with partial sensor information. Findings –...

2013
Xiaohong Luo Dongling Zhao

Overload pressure sensor can be used to measure and control the pressure of the high pressure compressed air and gas. In this paper, under the premise of ensuring the sensor full-scale range of linear response, through the appropriate contact of the flexible diaphragm and the substrate to effectively improve the sensor overload. Overload pressure sensor has a housing, metal pressure port as wel...

2016
Martin Leidinger Joni Huotari Tilman Sauerwald Jyrki Lappalainen Andreas Schütze

Pulsed laser deposition (PLD) at room temperature with a nanosecond laser was used to prepare WO3 layers on both MEMS microheater platforms and Si/SiO2 substrates. Structural characterization showed that the layers are formed of nanoparticles and nanoparticle agglomerates. Two types of layers were prepared, one at an oxygen partial pressure of 0.08 mbar and one at 0.2 mbar. The layer structure ...

ژورنال: تحقیقات موتور 2019
Hoseini, S. V., Talebi, A.,

Engine oil is one of most important parameters in internal combustion engine that plays effective role in component wear. One of the ways to optimize the performance of the IC engines is online monitoring of wear particle in engine oil. There are different ways to identifying these particles, most of which are offline. Nowadays online oil monitoring sensors are quickly developed. In this study ...

1999
J. H. Leck

The quadrupole mass spectrometer is now well established as the instrument used almost universally for partial pressure measurement. This spectrometer can be considered as a hot-cathode extractor ionisation gauge with the addition of an electrostatic mass filter between the ion source and the ion collector. This filter consists of a square array of circular rods approximately 6 mm diameter and ...

2006

Background: Diagnosis of brain death usually requires an arterial carbon dioxide partial pressure (PaCO2) of 60 mmHg during the apnea test, but the increase in PaCO2 is unpredictable. The authors evaluated whether transcutaneous carbon dioxide partial pressure (PtcCO2) monitoring during apnea test can predict that a PaCO2 of 60 mmHg has been reached. Methods: The authors compared PtcCO2 measure...

Journal: :Anesthesiology 2006
Benoît Vivien Frédéric Marmion Sabine Roche Catherine Devilliers Olivier Langeron Pierre Coriat Bruno Riou

BACKGROUND Diagnosis of brain death usually requires an arterial carbon dioxide partial pressure (Paco2) of 60 mmHg during the apnea test, but the increase in Paco2 is unpredictable. The authors evaluated whether transcutaneous carbon dioxide partial pressure (Ptcco2) monitoring during apnea test can predict that a Paco2 of 60 mmHg has been reached. METHODS The authors compared Ptcco2 measure...

Journal: :JAPANES JOURNAL OF MEDICAL INSTRUMENTATION 1985

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