Real-Time Gas Monitoring with NLIR’s Mid-Infrared Spectrometers
Are you in search of a high-performing gas monitoring solution that detects fast-changing phenomena with unmatched sensitivity and speed? Whether you’re monitoring combustion efficiency, tracking environmental emissions, or controlling production processes, NLIR’s mid-infrared spectrometers are engineered to elevate your gas-analysis capabilities.
By combining real-time spectral acquisition with ultra-high detection sensitivity, our mid-IR technology allows for live monitoring of gas emissions in dynamic environments where conventional tools fall short.
Precision Technology for Complex Gas Environments
The core of our spectrometers is NLIR’s patented upconversion technology. This innovation works by upconverting mid-infrared (MIR) wavelengths — rich in molecular absorption features — into the near-infrared (NIR) or visible (VIS) spectrum, where fast, low-noise CMOS detectors can be used without cryogenic cooling.
This results in a compact system that delivers the speed, sensitivity, and spectral clarity required for real-time gas fingerprinting across multiple industries.
Key Benefits of NLIR’s Mid-IR Gas Analysis Platform:
- Fast Spectral Acquisition. Capture spectra at rates up to 130,000 scans per second, with time resolution down to 2.5 µs per scan — ideal for monitoring combustion turbulence, pressure transients, or fast-reacting gases.
- Exceptional Sensitivity for Trace-Gas Detection. Detect even the faintest gas signatures, with sensitivity as high as −80 dBm/nm and NEP of 10 fW·Hz⁻½. This allows for precise identification even under harsh industrial conditions.
- No Cooling, No Compromises. Our room-temperature operation eliminates the need for bulky cooling systems, reducing maintenance costs and increasing deployment flexibility in mobile, field, or in-line environments.
- Broadband Spectral Coverage. With an optical range of 2.0–5.0 µm and resolution down to 2.5 cm⁻¹, NLIR spectrometers detect key gases like CO₂, CO, CH₄, NH₃, NOₓ, and SO₂ — all from a single scan.
- Flexible Sampling Interfaces. Choose between fiber-coupled or free-space optical heads, enabling both remote and in-situ analysis. This modularity allows easy integration into lab setups, industrial equipment, or environmental stations.
Comparing Gas Analysis Technologies: NLIR Spectrometers vs. FTIR and TDLAS Gas Analyzers
The IR spectrum is divided into three regions, each with unique applications and frequency ranges:
The comparison highlights the distinct advantages offered by NLIR’s technology, particularly in dynamic gas analysis applications that require high temporal resolution and sensitivity.
Applications & Use Cases - Tracing Gases in Motion
NLIR’s mid-infrared spectrometers are designed to track transient gas events and complex multi-species interactions with precision and clarity. Below are just a few example applications — many more are possible.
Our mid-infrared spectrometers are ready to be implemented across a range of critical gas monitoring applications. These examples illustrate the versatility and reliability of NLIR solutions depicting the many possibilities and environments where this solution can be deployed. We encourage you to contact our experts to discuss your specific needs.
Multicomponent Gas Monitoring
NLIR’s spectrometers deliver real-time, remote monitoring of critical combustion gases, including CO₂, CO, NOₓ, and SO₂. By providing spectral data in milliseconds, combustion efficiency can be optimized continuously, ensuring regulatory compliance and reducing environmental impact. Learn more about combustion monitoring here.
Combustion Analysis
For most remote sensing applications speed, sensitivity, and noise filtering are crucial. NLIR’s mid-infrared spectrometers offer rapid measurements of objects at any distance. Light from combustion processes or other hot samples is caught just by pointing the collection optics towards it. With millisecond readout rate, measure combustion emittance and detect composition in real time.
Automotive Emission Analysis
Our mid-infrared spectroscopy solutions have found use in automotive emission control and exhaust-gas testing. Their real-time measurement capabilities facilitate rapid on-line quality control, ensuring compliance with stringent emission regulations while optimizing production processes.
Environmental Monitoring & Trace-Gas Analysis
With extraordinary sensitivity and broad spectral coverage, our spectrometers are ideal for monitoring environmental pollutants and trace gases with just one detector. Researchers from Radboud University confirm NLIR’s instruments as “key devices for sensitive, broadband trace-gas sensors,” enabling simultaneous detection of multiple gases, improving environmental monitoring capabilities dramatically.
Choose the Right NLIR Spectrometer for Your Application
Depending on your specific gas-analysis requirements, NLIR provides tailored solutions. Explore them below.
Multi-Component Gas Analysis at 400 Hz Readout Rate
MIDWAVE Spectrometer
For routine quality control and standard gas monitoring (up to 400 Hz acquisition rate).
Multi-Component Gas Analysis at 130 kHz Readout Rate
BUNDLE Spectrometer
Ideal for rapid dynamic phenomena, turbulent combustion environments, or transient gas-event monitoring requiring maximum speed and sensitivity.
Take the Next Step: Request a Quote or Expert Consultation
Whether you’re a production manager seeking reliable quality control, an R&D scientist requiring precise measurements, or a technical lead implementing process improvements, NLIR’s mid-infrared spectrometers provide you with the precision, speed, and reliability needed for advanced gas analysis.
Request your quote now, or get in touch with our spectroscopy experts today to discuss your unique application and discover how our mid-IR solutions can elevate your gas-analysis capabilities.
