scholarly journals A Barometric Pressure Sensor with Integrated Reference Pressure Control using Localized CVD

2002 ◽  
Author(s):  
P.P.L. Chang-Chien ◽  
K.D. Wise
Keyword(s):  
Pressure Sensor ◽  
Barometric Pressure ◽  
Pressure Control ◽  
Reference Pressure

scholarly journals DEVICE FOR CHECKING AND CALIBRATING INDICATORS OF THE RESERVE TIME OF CONSCIOUSNESS PRESERVATION BY A PERSON IN CONDITIONS OF HYPOXIA

2021 ◽  
pp. 245-247
Author(s):  
Н.А. Марков
Keyword(s):  
High Altitude ◽  
Pressure Sensor ◽  
Barometric Pressure ◽  
Special Device ◽  
Pressure Regulator ◽  
Emergency Situations ◽  
Reference Pressure ◽  
Reserve Time

Для обеспечения надежного функционирования индикаторов резервного времени сохранения сознания человеком в условиях гипоксии разработан специальный прибор для их поверки и калибровки. Прибор включает регулятор давления, табло для индикации эталонного давления, табло для индикации резервного времени сохранения сознания, шланг с разъемом для соединения с датчиком барометрического давления, компрессор, регулятор давления и микропроцессор. Разработанный прибор обеспечивает возможность контроля работоспособности средств коллективного и индивидуального информирования экипажа пассажиров воздушных судов о величине предельного резервного времени сохранения сознания в чрезвычайных ситуациях высотных полетов. To ensure the reliable functioning of the indicators of the reserve time of consciousness preservation by a person in conditions of hypoxia, a special device for their verification and calibration has been developed. The device includes a pressure regulator, a tableau for indicating the reference pressure, a tableau for indicating the standby time of consciousness, a hose with a connector for connecting to the barometric pressure sensor, a compressor, a pressure regulator and a microprocessor. The developed device provides the ability to monitor the performance of the means of collective and individual informing the crew of aircraft passengers about the value of the maximum reserve time for maintaining consciousness in emergency situations of high-altitude flights.

scholarly journals A low-cost mobile multidisciplinary measurement platform for monitoring geophysical parameters

2020 ◽  
Author(s):  
Olivier F. C. den Ouden ◽  
Jelle D. Assink ◽  
Cornelis D. Oudshoorn ◽  
Dominique Filippi ◽  
Läslo G. Evers
Keyword(s):  
Data Storage ◽  
Pressure Sensor ◽  
Low Cost ◽  
Volcanic Eruptions ◽  
Barometric Pressure ◽  
Digital Design ◽  
Geophysical Data ◽  
Circuit Board ◽  
Joint Analysis ◽  
Mems Sensors

Abstract. Geophysical studies and real-time monitoring of natural hazards, such as volcanic eruptions or severe weather events, benefit from the joint analysis of multiple geophysical parameters. However, typical geophysical measurement platforms still provide logging solutions for a single parameter, due to different community standards and the higher cost rate per added sensor. In this work, the infrasound-logger is presented, which has been designed as a low-cost mobile multidisciplinary measurement platform for geophysical monitoring. The platform monitors in particular infrasound, but concurrently measures barometric pressure, accelerations, wind flow and uses the Global Positioning System (GPS) for positioning of the platform. Due to its digital design, the sensor platform can readily be integrated with existing geophysical data infrastructures and be embedded in the analysis of geophysical data. The small dimensions and lower cost price per unit allow for unconventional experimental designs, for example high density spatial sampling or deployment on moving measurement platforms. Moreover, such deployments can complement existing high-fidelity geophysical sensor networks. The platform is designed using digital Micro-electromechanical Systems (MEMS) sensors that are embedded on a Printed Circuit Board (PCB). The MEMS sensors on the PCB are: a GPS, a three-component accelerometer, a barometric pressure sensor, an anemometer and a differential pressure sensor. A programmable microcontroller unit controls the sampling frequency of the sensors, and the data storage. A waterproof casing is used to protect the mobile platform against the weather. The casing is created with a stereolithography (SLA) Formlabs 3D printer, using durable resin. Thanks to a low power consumption (9 Wh over 25 days), the system can be powered by a battery or solar panel. Besides the description of the platform design, we discuss the calibration and performance of the individual sensors.

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