absolute pressure sensor Articles

  • Safety Systems Depend on Reliable Field Sensors (Emphasis on Fire and Gas Detectors)

    Abstract Because not all hazards are the same, identifying and quantifying the hazard is the starting point in choosing sensing technology. Not all detectors are the same, and they should be selected according to their ability to detect the hazard. This paper gives a broad summary of technologies that provide users reliable responses to hazardous conditions, that minimise false ...

  • Water Level Measurements-Part 1

    Confused about which instrumentation to use in your water level monitoring system? In-Situ offers two categories of pressure sensors for water level measurements: absolute or non-vented sensors, and gauged or vented sensors. They look the same and both measure pressure and water level, but they have drastically different applications, outputs and accuracy. The absolute (or non-vented) water level ...


    By In-Situ, Inc.

  • Monitoring of a spark ignition engine malfunctions using acoustic signal technique

    This manuscript presents a fault detection method for a SI engine at variable speeds using acoustic signal technique. Two faults were addressed: misfire and the malfunction of manifold absolute pressure (MAP) sensor. The main objective is to detect these two faults by measuring the sound pressure level (SPL) in decibels (dBA) at different engine speeds and one octave frequency bands in the ...


    By Inderscience Publishers

  • Application notes - viscosity measurement

    Most laboratory viscometers employ the well-known principle of rotational viscometers to measure viscosity by sensing the torque required to rotate a spindle at a constant speed while it is immersed in the sample fluid. This is because the torque, generally measured using the reaction torque on the motor, is proportional to the viscous drag on the immersed spindle and thus the viscosity of the ...


    By Sensor Technology Ltd

  • Case Study Norderney LOG_aLevel_ENG

    Northsea Wave and Level Measuring Station In the operation of the research centre coast of the NLWKN–Norden-Norderney Apart from the coastal engineering, the coastal surveying and morphology, the storm tide warning service of the NLWKN-Norden-Norderney belong to the specific questions and tasks of the coastal area. The German Wadden Sea and ...


    By General Acoustics e.K.

  • Increased Demand for PureAire’s Oxygen Monitor for Nitrogen and Helium Storage

    When storing or using Liquid Nitrogen, Helium, CO2, or Argon cylinders in a confined space, what are the potential risks? Gas leaks are the most common, requiring the need for an oxygen deficiency monitor for protecting employees in the workplace.  With inert cryogenic gases, loose or broken fittings can leak gas into a room displacing oxygen, causing impaired judgment or loss of life to ...

  • Continuous Oxygen Monitor Detects Leaks in Nitrogen Dewar Storage

    Extremely low maintenance oxygen (O2) monitor designed to continuously monitor confined spaces for low oxygen levels available from PureAire Oxygen Monitors. PureAire Oxygen Monitor is suitable in all environments containing nitrogen, helium, argon, or any cryogenic gases. PureAire is unaffected by temperature, humidity, barometric pressure, or any environmental changes. The instrument displays ...

  • Future inside – smart environmental sensing technology

    SHM30 snow depth sensor in Antarctica (photo: Alfred-Wegener-Institut, Helmholtz-Zentrum Bremerhaven) A lot of sensing technologies have changed recently: Ultrasonic wind measurement replaces cups and vane systems, closed anemometer designs offer better protection from ...

  • Water vapour permeation testing of food packaging at Campden BRI, Research and Technology Organisation

    Based in the UK, Campden BRI provide the food and drinks industry worldwide with the research, technical and advisory services essential to ensure product quality and safety, process efficiency and innovation. The research centre is a continuous source of knowledge for industry, meeting frequently with its thirteen member interest groups and associated industrial working parties. Contract ...


    By Systech Instruments Ltd

  • Energy savings: VFD versus CSV case study

    The two most common ways to produce constant pressure are Variable Frequency Drives or VFD’s, and Cycle Stop Valves or CSV’s. The end result is the same in that the system sees a steady or constant pressure, as the flow rates required vary from small to large. However, these two systems control the pump in completely different ways. Variable Frequency Drives or ...


    By Cycle Stop Valves, Inc.

  • Dry Ice –Carbon Dioxide: Where is it being used and how to handle safely?

    Carbon dioxide, in its solid form, is colder than ice.  It is so cold, in fact, that handling it without protection can cause frostbite.  It does not melt, but instead dissipates into a gas that can be dangerous to breathe.  This substance is called dry ice, and, when handled properly, has many useful applications. The most practical use of dry ice is to keep things cold. It can be ...

  • CO2 Gas Hazards in the Brewing Industry

    The hazards associated with CO2 in the brewing industry are well known, yet people still die needlessly every year in tragic and completely avoidable accidents in breweries. Just last year in Germany, which has a good safety record, two workers died in separate incidents at the same brewery. In the first incident, the owner was found dead with his head and torso in a beer mixing tank. It is ...

  • Supercritical carbon dioxide – from coffee to dry cleaning

    Sometimes I can’t start the day without my morning coffee, and I’m sure most adults would agree that consuming caffeine is a part of their daily routine. A regular cup of coffee can contain 95 to 200mg of caffeine depending on what bean is used and how it has been prepared. In moderation, caffeine can elevate your mood, reduce tiredness and make you more alert, however it can also ...


    By Analox Sensor Technology

  • Reduce carbon and energy cost with Building Energy Management Systems

    Building Energy Management Systems can achieve the cost and carbon saving benefits businesses are seeking. One of the most efficient methods of reducing energy consumption is a Building Energy Management System (BEMS), yet many organisations overlook BEMS  in their energy efficiency plans because of ...


    By ENER-G

  • Fuel Polishing & Transfer Systems

    Earlier this year, Algae-X International came out with a totally new line of Fuel Polishing & Transfer Systems designed and built there in Fort Myers, Florida facilities. By listening to its customers, boat builders and yacht owners alike, Algae-X found out what they wanted to have as an on board fuel optimization package. The design is modular, so the right system can be chosen for each ...


    By AXI International

  • FTIR resolution requirements for industrial gas analyses

    FTIR Spectroscopy FTIR Spectroscopy is a widely used technique for gas analyses in industrial applications. It is a technique used in the semiconductor industry for measuring the purity of cleaning, etching, and epitreatment gases used with various process tools, reactors, and abatement devices. Among chemical companies and R&D faciltities, FTIR is applied to combustion ...


    By CIC Photonics, Inc.

  • FTIR resolution requirements for industrial gas analyzers

    FTIR Spectroscopy is a widely used technique for gas analyses in industrial applications. It is a technique used in the semiconductor industry for measuring the purity of cleaning, etching, and epi-treatment gases used with various process tools, reactors, and abatement devices. Among chemical companies and R&D facilities, FTIR is applied to combustion thermodynamics and stack gas emissions; ...


    By CIC Photonics, Inc.

  • Can we bury the carbon dioxide problem?

    Seriously — carbon capture and storage could be a game-changer. Mention “carbon capture and storage” — the process of trapping carbon dioxide produced in fossil-fuel burning or other industrial processes and burying it underground — in polite company, and you’re likely to be pounced on. It’s absurdly expensive. It can never be rolled ...


    By Ensia

  • Flying High

    Operating a biogas plant without gas quality and flow instrumentation is like trying to fly a ...


    By Gas Data Ltd

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