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Pressure Sensors

Pressure Sensors Positioning for Leakages Detection under Uncertain Demands

Pressure Sensors Positioning for Leakages Detection under Uncertain Demands

... The pressure sensors positioning is a crucial step for leakages ...monitoring sensors, or simply sampling design, has been previously addressed with respect to several ...the pressure ...

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Outflow monitoring of a pneumatic ventricular assist device using external pressure sensors

Outflow monitoring of a pneumatic ventricular assist device using external pressure sensors

... internal pressure alone, the transfer of air molecules through the air driveline could be measured by the differential air pressure ...Differential pressure can also be use- ful to estimate the ...

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Design and fabrication of structured roughnesses in microchannels with integrated MEMS pressure sensors

Design and fabrication of structured roughnesses in microchannels with integrated MEMS pressure sensors

... The polysilicon resistors were patterned on the front side of the wafer in lithography level III using backside alignment technique described below. This step is critical as the response of the pressure ...

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Utilization of Embedded Pressure Sensors in Smart Textile Applications.

Utilization of Embedded Pressure Sensors in Smart Textile Applications.

... with pressure sensors embedded in its sheets would not be considered a “wearable” garment, the fact that the sheet will be in constant contact with the bedridden patient creates a similar ...

204

Cylinder pressure sensors for smart combustion control

Cylinder pressure sensors for smart combustion control

... cylinder pressure sensors were of non-intrusive type and could be applied by simply replacing the washer of a spark plug (Kondo et ...combustion pressure. These sensors rep- resent an indirect ...

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Recent Progress of Miniature MEMS Pressure Sensors

Recent Progress of Miniature MEMS Pressure Sensors

... absolute pressure capacitor transducer [46], which had better thermal stability ...reference pressure chamber would eliminate the need for a large reference pressure port (such as a ...capacitive ...

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Long Term Implantable Pressure Sensors

Long Term Implantable Pressure Sensors

... fluid pressure monitoring, rather than snapshot measurements taken in the clinic, in organs such as the heart, eye, brain, and bladder, is important to indicate health or progression of disease ...piezoresistive ...

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Novel Negative Pressure Wave-based Pipeline Leak Detection System Using Fiber Bragg Grating-based Pressure Sensors

Novel Negative Pressure Wave-based Pipeline Leak Detection System Using Fiber Bragg Grating-based Pressure Sensors

... negative pressure wave (NPW)-based pipeline leak detection (PLD) system has been reported, which is configured using Fiber Bragg Grating (FBG) pressure ...FBG-based sensors can accurately determine ...

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Implantable Wireless Intraocular Pressure Sensors

Implantable Wireless Intraocular Pressure Sensors

... involving pressure sensors and valved flow-control devices have been developed in this work for medical application in glaucoma study and ...intraocular pressure (IOP)) in glaucoma provide a basis ...

187

Offset stable piezoresistive high-temperature pressure sensors based on silicon

Offset stable piezoresistive high-temperature pressure sensors based on silicon

... conventional sensors that are using a p − n junc- tion as isolation between the sensing elements and the sili- con substrate as they rise from room temperature to 300 ◦ C by about 5 orders of magnitude (Soler and ...

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User-Controlled Low Power Home Surveillance System

User-Controlled Low Power Home Surveillance System

... PIR sensors and pressure ...pyroelectric sensors to develop an electric signal in response to a change in the incident thermal ...PIR sensors typically include two IR-sensitive elements with ...

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The heat transfer coefficient determination with the use of the Beck-Trefftz method in flow boiling in a minichannel

The heat transfer coefficient determination with the use of the Beck-Trefftz method in flow boiling in a minichannel

... It was possible to measure temperature on the outer side of the plate due to infrared camera (Fig. 1, 2). The E60 FLIR infrared camera (2) had an accuracy of ± 1 °C or ± 1% in the temperature range 0 ÷ 120 °C [23]. This ...

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A micro-capacitive pressure sensor design and modelling

A micro-capacitive pressure sensor design and modelling

... sure sensors is crucial to achieve long term ...capacitive pressure sensors to support the sensor silicon ...capacitive pressure sensor under medium bonding temperature (Frank, 2000; Hsu, ...

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Output Drifting of Vacuum Packaged MEMS Sensors Due to Room Temperature Helium Exposure

Output Drifting of Vacuum Packaged MEMS Sensors Due to Room Temperature Helium Exposure

... absolute pressure sensor clearly indicate that these types of MEMS devices, sealed with reflowed glass and anodic bonding, cannot be used in helium containing gases without a he- lium impermeable corrugated metal ...

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Carbon nanotube four-terminal devices for pressure sensing applications

Carbon nanotube four-terminal devices for pressure sensing applications

... form pressure sensors. The sensors were calibrated using a precisely controlled pressure system, showing a large change of the output voltage of approximately 50 mV at a constant supply ...

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LOW COMPLEXITY HEVC INTRA MODE DECISION USING MODES REDUCTION

LOW COMPLEXITY HEVC INTRA MODE DECISION USING MODES REDUCTION

... with pressure ulcers often do not move themselves, so it is necessary to ch ange their postures when lying down in the same position for a certain period of ...prevent pressure ulcers and/or falling ...

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Underwater Vehicle CFD Analyses and Reusable Energy Inspired by Biomimetic Approach

Underwater Vehicle CFD Analyses and Reusable Energy Inspired by Biomimetic Approach

... of pressure sensing on imitating the function of lateral line ...the pressure sensors include dipole source localization, object recognition and flow pattern ...The pressure distribution over ...

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Effects of high temperature and pressure on silica optical fibre sensors

Effects of high temperature and pressure on silica optical fibre sensors

... The high temperature instabilities have been further investigated using Hi-Bi fibre pressure sensors, fibre Bragg gratings and standard telecommunications single-mode fibre. Similar results for the drift in ...

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Modernizing the leak-detection system for MOL’s oil-products pipelines - Part 2

Modernizing the leak-detection system for MOL’s oil-products pipelines - Part 2

... system, pressure together with other analogue signals is converted into digital format before processing by PLC, SCADA, and ...of pressure data is presented as the minimum detectable change in ...LDS ...

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Offline Location Detection and Accident Indication using Mobile Sensors

Offline Location Detection and Accident Indication using Mobile Sensors

... Identifier, pressure sensors , or accelerometer for vibration detection are placed in a predefined space or environment to monitor the activities of the people as well as the occurrence of a accident ...

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