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Maximize Precision in Industrial Particulate Inspections


Particulate inspections of oil samples help to prevent corrosion and wear in plant equipment. The same methods can also be used for quality control inspection of oil and gas pipelines. Olympus’ CIX100 automated microscopy system provides an easy-to-use particulate inspection workflow that images and measures particles according to industry standards and in more detail than any other method for improved confidence in the quality of materials and liquids.

Particle contamination in liquids is a key element of industrial inspection – both in manufacturing and in maintenance. Particles such as metal, sludge and varnish can have a detrimental effect on a range of industrial processes. These effects include contamination, wear, corrosion and ultimately equipment downtime.

The Full Picture

There are several techniques that can measure particulate contamination in liquid samples. Laser-based particle counters are commonly used to count the number of particles in a sample. However, this type of measurement does not provide any details regarding the size of the particles or whether the particles are reflecting or non-reflecting. Also, laser-based particle counters often overlook transparent particles in a sample.

Maximize Precision in Industrial Particulate Inspections

The Olympus CIX100 provides an easy, intuitive particle inspection workflow.
Figure 1: The Olympus CIX100 provides an easy, intuitive particle inspection workflow.

For a comprehensive overview of contamination in a sample of liquid, automated microscopic particle analysis is a suitable option. Automated particle analysis systems, such as Olympus’ CIX100 (figure 1), provide a fast, detailed and reliable way to obtain all the necessary information about contamination in a sample, and enable better decision making – both in manufacturing and in maintenance.

The CIX100 inspection workflow is simple: a sample of liquid contaminated with particles is filtered through a filter membrane. The inspector can than place the filter membrane under the microscope and start the automated imaging and particle analysis. The microscope detects particles down to 5 μm – ten times smaller than stereo microscopy systems.

Due to the microscope’s unique polarised light illumination, one single scan can detect both reflecting and non-reflecting particles in a single scan. This means that the imaging and analysis can be completed significantly faster than with conventional illumination (figure 2). Intuitive software then automatically summarises the results for easy, fast and customised report generation.

Two application areas where microscope-based analysis provides significant benefits over alternative techniques are quality control (QC) in pipe manufacturing and inspection of oils used in industrial plants for hydraulic systems and lubrication.


Olympus’ unique illumination approach polarises part of the light’s spectrum to detect reflecting particles, avoiding the need for a separate scan and speeding up inspections.
Figure 2: Olympus’ unique illumination approach polarises part of the light’s spectrum to detect reflecting particles, avoiding the need for a separate scan and speeding up inspections.

Maintenance: Oil Inspection

Hydraulic systems, transformers and gearboxes all rely on oil for effective operation. However, both oxidation and friction can lead to the formation of particulates, which in turn can cause corrosion, reduced efficiency and part failure. Regular inspection of oil samples helps to prevent damage by knowing when to replace the oil (figure 3).

Using the CIX100 for imaging a filter membrane after sample filtration ensures that the most detailed sample information is extracted. The CIX100 shows the presence of potentially transparent contaminants, such as sludge and varnish, which are formed by oxidation of oil. The reliability of the detection ensures that inspections are fully compliant with relevant oil and gas industry standards (ISO4406, ISO4407, DIN51455 and SAE AS4059). Furthermore, automated thresholding settings for oil samples means that inspections are fast and do not require extensive training to perform.

Manufacturing: Pipeline QC

In the production of pipes for oil extraction, unwanted particles can remain in the pipes after fabrication and affect the durability of the pipes. To determine the presence of particles, hydraulic fluids can be flushed through the pipes and analyzed to provide an indication of particles inside the pipe.

The CIX100 is well suited for detection of particles in these samples as it produces a detailed overview of not just the number of particles, but also the size distribution and the types of particles present. With 4 TB of HDD storage capacity, the CIX100 system is capable of storing thousands of measurements – including the image of the whole filter membrane and each individual particle – in full detail for easy digital archiving.

Regular inspection of oil samples helps to prevent damage by knowing when to replace the oil.
Figure 3: Regular inspection of oil samples helps to prevent damage by knowing when to replace the oil.

Summary

Microscopes have come a long way since the days of manual particle counts to quantify contamination. Modern automated microscopy systems can identify and measure particles with unrivalled precision, enabling inspectors to retrieve reliable information that cannot be identified using laser-based particle counters.

In the oil and gas and power generation industry, Olympus’ automated CIX100 microscope can be used in manufacturing and maintenance to detect a wide range of particles. The simple, intuitive workflow means that data acquisition, reviewing and reporting is fast and straightforward, enabling inspectors to maximize precision while keeping their inspections fast and efficient.

Olympus IMS

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O sistema de inspeção CIX100 é uma solução integral dedicada a fabricantes que mantêm os mais elevados padrões de qualidade na limpeza de componentes fabricados. Adquira, processe e documente rapidamente dados técnicos de inspeção de limpeza para cumprir os padrões da empresa e os internacionais. O software intuitivo do sistema guia os usuários em cada etapa do processo para que mesmo os operadores iniciantes possam adquirir dados de limpeza com rapidez e facilidade.
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