MID Infrared Spectrometer Details
Developers in both industry and research use MID infrared spectrometers for non-invasive characterization of gases, liquids, and solids as well as characterization of light sources. NLIR’s MIDWAVE Spectrometer is a fast, portable, and versatile tool for measuring infrared light in the 2.0 – 5.0 μm range. Designed for applications requiring high-speed and accurate spectral measurements, it captures full spectra in milliseconds, making it ideal for both industry and laboratory.
NLIR’s MIDWAVE Spectrometer has high sensitivity of -80 dBm/nm or better, and the full-spectrum readout rate of 400 Hz! The spectrometer enables the characterization of light sources and measuring spectral content from chemical processes with a time resolution of 10 µs.
Powered by NLIzeR Software
MIDWAVE Spectrometer comes with an NLIzeR Software for easy spectral analysis. With NLIzeR, you get:
- Adjustable exposure time, averaging, gain, and offset.
- Live data stream, external trigger mode, background capture, transmission view, data saving, and many more features.
API interfaces for MATLAB, Python, and C (via DLLs), enabling seamless integration into custom workflows or automated processes.
Specifications
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Experience real-time measurements
NLIR’s MID Infrared Spectrometer powers measurements of various samples and applications in real time. Explore our measurement examples below.
Multi-Gas Live Monitoring with NLIR's Infrared Spectrometer
Gases can be detected using infrared (IR) spectroscopy by measuring light in transmission. A light source sends light through a gas-filled chamber or pipe, and a spectrometer captures how the light is absorbed by the gas.
The video demonstrates this setup in action. NLIR’s FIBER Light Source delivers light through a fiber to a simple gas cell, while another fiber guides the transmitted light to NLIR’s MIDWAVE Spectrometer. The spectrometer captures spectra every 20 milliseconds, clearly showing the transmission features on screen.
Optical Coating Transmission Measurements with MID-IR Spectrometer
In this video, we demonstrate how NLIR’s MIDWAVE Spectrometer, combined with FIBER Light Source, can measure transmission spectra of optical filters in real time. With an exposure time of just 2 ms, the spectrometer captures data from every filter on the rotating wheel during each full rotation.
Measure reflection from (almost) any sample with MIR Spectrometer
The MIDWAVE Spectrometer is also very useful for reflection measurements due to its high sensitivity. The video demonstrates several reflection measurements on various materials using our TOUCH Interface.
Despite the sample’s curvature, the data displayed on the screen is of exceptional quality, thanks to the sophisticated internal design of the TOUCH Interface and the high sensitivity of NLIR’s MIDWAVE Spectrometer.
Measuring alcohol in liquids with a mid-infrared ATR probe
By combining NLIR’s MIDWAVE Spectrometer with the FIBER Light Source, you can achieve fast and accurate measurements in the 2.0 – 5.0 µm wavelength range, enabling real-time monitoring of liquid content. The fiber-coupled ATR probe from ArtPhotonics offers high transmission and integrates seamlessly with our products.
Scientific Research
Our MID Infrared Spectrometer has been tested in various applications
Online characterization of mixed plastic waste using machine learning and mid-infrared spectroscopy
Accurate characterization of mixed plastic waste using machine learning and fast infrared spectroscopy
Trusted by engineers across industries & fields
Our customers from different industries have already achieved breakthrough in time-resolved spectroscopy measurements with our IR Spectrometer. Read about their success stories below.
Eliana La Francesca, PhD
Versatile characterization enabled by fiber-coupled spectrometer
We use the NLIR’s MIDWAVE Spectrometer for our calibration set-up. We appreciate the versatility of fibre coupling, the fast response of the detector and the ability to work at room temperature. All these aspects help us in the fundamental step of independent characterization of sources and optical elements.
A key device for sensitive, broadband trace gas detection
We are very satisfied with the outstanding performance of the NLIR’s upconvertion spectrometer, offering both superior sensitivity and spectral range. These advantages allowed us to develop a versatile broadband (> 600 cm-1) trace gas sensor for single species as well as fast and stable multi-species detection. It has been a pleasure working with their innovative and skilled technical team.
Associate Professor Dr. Frans JM Harren & Dr. Qing Pan
Stas Zinchik, Ph.D.
A primary instrument for our team’s fast, AI-based research activity
We have been using NLIR’s MIDWAVE Spectrometer for about two years now, successfully performing inline plastic characterization. The MIDWAVE Spectrometer has become a primary instrument for our team’s fast, AI-based plastic waste stream characterization research activity.
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