Oxygen sensing is often associated with healthcare, where accurate measurements are essential in anaesthesia, respiratory and life-support equipment. Versiv ultra-thin PTFE C Films are used in medical galvanic oxygen sensors, controlling oxygen diffusion while simultaneously acting as a protective membrane.
Learn more about Versiv PTFE membranes for medical oxygen sensors.
However, the importance of oxygen measurement extends far beyond healthcare. From detecting contamination in hydrogen production to monitoring residual oxygen in food packaging, sensors support safety, process efficiency and product quality across numerous industries. Many oxygen analysers rely on these sensors as their core measuring element, converting sensor data into precise oxygen readings for continuous monitoring and process control.
Where Are Oxygen Sensors Used?
Key applications and industries relying on accurate oxygen control include:
Industrial Gas Monitoring and Metal Processing
Oxygen concentration can directly influence the efficiency, safety and stability of industrial processes.
In furnaces, boilers and combustion systems, oxygen measurement helps operators manage combustion conditions and improve process efficiency.
In metal processing and welding, oxygen monitoring is also important when working with inert-gas environments. Detecting unwanted oxygen ingress helps prevent oxidation that could affect the quality of finished components.
Similar principles apply to controlled-atmosphere manufacturing and glove boxes, where maintaining low oxygen levels can be essential for processing oxygen-sensitive materials.
Food and Beverage Production
Oxygen exposure can influence the flavour, freshness and shelf life of food and beverages.
In modified-atmosphere packaging (MAP), the air surrounding a product is replaced with a controlled gas mixture. Oxygen sensors are used to check residual oxygen levels and verify that the intended packaging conditions have been achieved.
In beverage production, oxygen monitoring is important at different stages of processing. For example, oxygen is required during certain stages of brewing to support yeast activity, but excessive exposure later in production can contribute to oxidation and changes in flavour.
Are you developing an oxygen sensor for a specialised application?
Contact Versiv to discuss how our ultra-thin PTFE film expertise could support your design and performance requirements.
Pharmaceutical and Biotechnology Processes
In pharmaceutical manufacturing, controlling oxygen exposure can help protect sensitive products and maintain consistent processing conditions.
Oxygen measurement can be used to monitor controlled atmospheres during pharmaceutical packaging and production.
Maintaining appropriate oxygen levels supports process control and consistency in biological manufacturing.
Laboratories and Research Equipment
Laboratory experiments often depend on precisely controlled environmental conditions.
Oxygen analysers are used in gas-mixing systems, environmental chambers, controlled-atmosphere equipment and experimental processes where oxygen levels must be measured or regulated.
These applications can involve anything from evaluating new materials to investigating chemical reactions under defined atmospheric conditions.
Workplace Safety and Confined Spaces
In certain environments, oxygen monitoring is essential for protecting workers.
Confined spaces such as tanks, tunnels, mines, sewers and industrial vessels can develop oxygen-deficient atmospheres due to gas displacement, chemical reactions or biological activity.
Conversely, oxygen-enriched conditions can increase fire risks.
Portable and fixed gas-monitoring equipment, including systems using electrochemical oxygen sensors, can help identify these hazards before and during work in potentially dangerous environments.
Semiconductor and Electronics Manufacturing
Semiconductor and electronics manufacturing often require exceptionally clean and controlled processing environments.
Even trace amounts of oxygen can interfere with oxygen-sensitive processes, making gas purity monitoring an important part of contamination control.
Specialised oxygen analysers incorporate oxygen sensors to detect very low concentrations of oxygen in high-purity process gases and inert manufacturing atmospheres.
Natural Gas and Hydrogen Systems
Oxygen monitoring plays an important role in gas processing, energy production and transportation.
In natural gas systems, oxygen ingress can affect gas quality and contribute to corrosion under certain conditions, particularly where moisture is present.
In hydrogen production, including electrolysis, monitoring oxygen contamination in hydrogen streams helps verify gas purity and detect process deviations.
This is particularly important because unintended mixing of hydrogen and oxygen can create hazardous conditions.
As hydrogen production, transport and storage infrastructure develops, reliable gas monitoring remains an important consideration for process performance and safety.
Automotive Exhaust Systems
Oxygen sensors are an established component of automotive emission-control systems.
By measuring oxygen in exhaust gases, they help engine management systems regulate the air-fuel mixture, supporting efficient combustion and emissions control.
Looking Ahead: Exploring New Opportunities for Oxygen Sensing
As industries place increasing importance on process control, gas purity, product quality and safety, oxygen measurement continues to support a diverse range of technologies.
Emerging applications in hydrogen production, battery manufacturing, carbon capture and advanced materials processing are creating new opportunities for oxygen-monitoring technologies across industry.
Each application presents unique challenges, from detecting trace oxygen levels with high accuracy to delivering reliable performance in harsh chemical and industrial environments.
While sensing technologies vary by application, electrochemical oxygen sensors remain widely used due to their accuracy, reliability and ability to measure low oxygen concentrations. Many of these sensor designs rely on precisely engineered membranes to regulate oxygen diffusion into the sensing element.
Not all oxygen-sensing technologies use permeable membranes, and suitability depends on the sensor design and operating conditions. However, for designers working with membrane-based electrochemical systems, selecting the right material can be an important part of achieving consistent sensing performance.
With established expertise in ultra-thin PTFE cast films, Versiv offers opportunities for collaboration with sensor manufacturers investigating new applications and material requirements.
The Role of High-Performance Membranes in Oxygen Sensing
The performance of membrane-based electrochemical sensors depends partly on the properties of the materials used in their construction.
In galvanic oxygen sensors, the membrane provides a controlled diffusion pathway for oxygen while protecting the sensing cell from the surrounding environment.
Its thickness, permeability and structural integrity can influence sensor response, measurement repeatability and durability.
Versiv C Films are ultra-thin, multilayer cast PTFE films engineered for use as oxygen-permeable sensing membranes.
Their key characteristics include:
- Controlled oxygen diffusion: Consistent film thickness helps regulate the rate at which oxygen reaches the sensing electrode.
- Pinhole-free construction: Multilayer film technology minimises defects that could allow uncontrolled gas ingress or electrolyte leakage.
- Chemical resistance: The inherent chemical stability of PTFE supports membrane integrity in demanding environments.
- Isotropic properties: Uniform mechanical properties in both machine and transverse directions support dimensional consistency during sensor manufacture and operation.
- Ultra-thin thickness: Available from 0.009 to 0.018 mm / 0.375 to 0.75 mil
These material characteristics, already applied in medical galvanic oxygen sensors, provide a foundation for exploring other membrane-based sensing designs.
