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With a broad product portfolio, we have the best-fit technologies to meet your application needs.
Our stable, reliable gas analysis solutions measure over 20 gases with industry-leading accuracy and stability.
Our expertise and single-supplier solutions help improve an extensive range of industrial processes.
We offer accurate and reliable gas analysis for hazardous and safe area applications, including ultra-low detection and portable products.
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Servomex’s Plasma emission detection technology was developed to provide a safer alternative to flame-based sensing for hydrocarbon analysis. Delivering ultra-low measurements, it is used in our SERVOPRO Plasma, Chroma, NanoChrome, and NanoChrome ULTRA analyzers.
A discharge process occurs when sufficient energy is provided to ionize a gas stream. The resulting plasma consists of free electrons, ions, neutral molecules, and high-energy photons in a continuous state of ionization and recombination.
When energized by an external, alternating high-voltage field, gases flowing in a Dielectric Barrier Discharge (DBD) glow plasma produce intense emission spectra which relate directly to their unique molecular bonds.
The optical emission spectroscopy (OES) method combines precision optical filters and detectors to provide a highly selective gas measurement.
Our DBD plasma sensor consists of a custom quartz cell with transparent windows fitted with electrodes powered by a controlled radio frequency (RF) electromagnetic field. Multiple OES detector assemblies surrounding the quartz cell make selective measurements of emitted spectra of multiple gas species at the same time.
This highly sensitive and selective speciation of gases enables measurement of trace parts per billion (ppb) of gases.
Plasma sensing can be used together with Gas Chromatography techniques to deliver highly sensitive measurements down to ppb levels. However, this sensitivity means that it is only suitable for trace analysis applications.
Semiconductors
Medical gases
Air separation units
Safer and more stable than competing technologies
Reliable, gas-specific selectivity
No sensor maintenance requirements
Safe, stable trace-level analysis of hydrocarbons as impurities in Pure Gas (P-Gas) for semiconductor fabs.
Learn more about all our gas analyzer solutions that use this sensor technology.
The Chroma is optimized to specific background gases to ensure optimum performance for your application.
Incorporating the latest advances in gas sensing and signal processing methodology, the NanoChrome revolutionizes ultra-trace purity measurements.
Using proven ultra-trace sensing, the NanoChrome ULTRA conquers the most stringent demands of the semiconductor industry, delivering a cost-effective solution compared to competing technologies.
The Plasma delivers an accurate, highly stable and reliable measurement, with high sensitivity in the 0-1ppm range.
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If you still need guidance to find the best solution for your process, we’re here to help. Our expert team combines applications knowledge with extensive experience and deep understanding of the sensing technologies available. We’ll help you find the solution that meets your unique needs.