oxygen sensors Articles

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When is a Nitrogen Monitor Not a Nitrogen Monitor?

by Analox Sensor Technology  (Apr. 15, 2015)

No matter what industry you work in, whether it be diving, agriculture, academia, aerospace or catering you will no doubt have your own industry specific language. My favourite take on this is this ...

Moisture in Oils: The Three-Headed Beast

by Arizona Instrument LLC  (Apr. 14, 2015)

Abstract Moisture contamination in in-service lube oils is perhaps one of the most destructive forms of engine corrosion second only to particle contamination.  Water contamination in oil can be categorized into three forms of water; Free, emulsified, and dissolved.  All forms of water have direct consequences to the oil and gears of ...

Effect of sensor location on controller performance in a wastewater treatment plant

by IWA Publishing  (Mar. 16, 2015)

Complete mixing is hard to achieve in large bioreactors in wastewater treatment plants. This often leads to a non-uniform distribution of components such as dissolved oxygen and, hence, the process rates depend on them. Furthermore, when these components are used as input for a controller, the location of the sensor can potentially affect the ...

Q&A: Patrick Wagnon on glaciers and climate change

by SciDev.Net  (Apr. 17, 2015)

Patrick Wagnon is a glaciologist at the Institute of Research for Development in France, and a visiting scientist at the International Centre for Integrated Mountain Development in Kathmandu, Nepal. As a global ‘glacier chaser’, he has summited some of the highest mountains in the world, including the 8,516 metre Lhotse in the ...

Long Lasting Safety with PureAire Monitoring Systems’ 10+ year sensors

by PureAire Monitoring Systems, Inc  (Jul. 21, 2014)

When it comes to oxygen deficiency monitors, PureAire makes the longest lasting units on the market. They believe your safety should not be taken lightly, and have created a reliable and affordable monitor that will outlast all of their competitors. PureAire Monitoring Systems has broken away from the norm of using disposable sensor cells, and has ...

Factors affecting the performance of a single-chamber microbial fuel cell-type biological oxygen demand sensor

by IWA Publishing  (Nov. 13, 2013)

Microbial fuel cells (MFCs) are devices that exploit microorganisms as biocatalysts to degrade organic matter or sludge present in wastewater (WW), and thereby generate electricity. We developed a simple, low-cost single-chamber microbial fuel cell (SCMFC)-type biochemical oxygen demand (BOD) sensor using carbon felt (anode) and activated ...

What is added value?

by Analox Sensor Technology  (Mar. 3, 2015)

We’ve probably all heard people referring to their “value added” service or product. Some of us have probably said it to our customers but what exactly does it mean? The UK supermarket Kwik Save launched a budget brand in the 1990s called “No Frills”. I believe they were the first to do this on a large scale and it ...

PureAire Combines Oxygen and CO2 Sensors to provide a Dual Gas Monitor to the Marketplace

by PureAire Monitoring Systems, Inc  (Apr. 30, 2013)

As a recognized leader in O2 safety monitoring, PureAire recently explored the need for an O2 monitor where carbon dioxide is used. There are four key cryogenic gases; nitrogen, helium, argon, and carbon dioxide (CO2), which can create an oxygen deficient atmosphere. Material Safety Data Sheets (MSDS) covering cryogenic gases cite that a cryogenic ...

Accuracy of different sensors for the estimation of pollutant concentrations (total suspended solids, total and dissolved chemical oxygen demand) in wastewater and stormwater

by IWA Publishing  (Jul. 19, 2013)

Many field investigations have used continuous sensors (turbidimeters and/or ultraviolet (UV)-visible spectrophotometers) to estimate with a short time step pollutant concentrations in sewer systems. Few, if any, publications compare the performance of various sensors for the same set of samples. Different surrogate sensors (turbidity sensors, ...

Application of nanocrystalline metal oxide gas sensors for air quality monitoring

by Inderscience Publishers  (Apr. 21, 2014)

Increasing concern regarding health effects caused by air pollution, together with the limited spatial resolution achievable with conventional monitoring stations, have driven efforts to develop inexpensive metal oxide gas sensors for air quality measurements. The sensing mechanism is dependent on physicochemical reactions between adsorbed gas ...

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