Product Details
The NIRQuest+ is a versatile NIR spectrometer for applications ranging from moisture detection to laser characterization. NIRQuest+ spectrometers cover the wavelength range from 900-2500 nm. Custom and preconfigured options are available.
Custom NIRQuest+ options allow for configuration variations to meet your specific measurement needs. This may include selecting a different slit size or grating range than is available in our preconfigured offerings.
NIRQuest+ can measure very small changes in absorbed signal, which are typical of harmonic overtones in the NIR. Its higher sensitivity enables better measurement accuracy, particularly in low light conditions. Also, at longer wavelengths, NIRQuest+ measures diffuse reflection at low noise levels, resulting in cleaner spectra at wavelengths where distinct spectral features can be difficult to capture.
NIRQuest+ spectrometers are ideal for applications including moisture content for fruit sorting; plastics recycling; and chemical concentration measurements. The spectrometer can be used in the lab or on the line, such as on a conveyor belt or in a sample stream.
Example Applications
• Determination of moisture content in grains
• QA/QC inspection of pharmaceutical ingredients
• Measurement of blood oxygenation in tissue
• Component analysis of soil samples
• NIR laser characterization
• Hydrocarbon analysis in oil and gas
• Photoluminescence of coated silicon wafers
• Determination of chemical composition of plastics
For NIR solutions for customer integration projects, Ocean Insight offers several capabilities: in-house feasibility and verification testing via Ocean Lab Services; skilled engineering support for OEM level optimization of spectrometer optics and accessories; and machine learning algorithm development for advanced data identification and quantification.
NIRQuest+ spectrometers are compatible with Ocean Insight's comprehensive line of fiber optic light sources, optical fibers and sampling accessories.
Product Overview
- Robust -- reliable spectrometer with deep thermoelectric cooling to -20 °C for low dark current
- Fast spectral processing -- rapid data transfer is great for applications using chemometric models
- Modular -- configurable with a range of detectors, gratings and slits for your application
- Flexible -- replaceable slit design and optional internal shutter for adaptable measurement control
Quick tip: A spectrometer wavelength calibration source can be a useful tool for your lab. For NIR applications, we recommend an Argon (AR-2, 696-1704 nm) or Xenon (XE-2, 916-1984 nm) emission source.
NIRQuest+ in the literature: How NIRQuest+ is helping researchers make more efficient use of the byproducts of paper making and pulp processes
Need a custom configured spectrometer?
Flexibility in the selection of gratings, slits and other components
allows users to customize solutions for specific measurement challenges.
Contact us to find out how a spectrometer can be configured.
Take advantage of our technical guidance and this interactive spectrometer range-resolution tool.
| Engineering Specifications | NIRQuest |
| SPECTROSCOPIC | |
| Optical resolution: | 512-1.7: ~3.1 nm w/25 µm slit 512-1.9: ~3.1 nm w/25 µm slit 512-2.2: ~5 nm w/25 µm slit 512-2.5: ~6.3 nm w/25 µm slit 256-2.1: ~7.6 nm w/25 µm slit |
| Signal-to-noise ratio: | 10000:1 (full signal) |
| A/D resolution: | 16 bit |
| Dark noise: | 6 – 24 RMS counts dependent on the model and integration time |
| Dynamic range: | 7500 – 15000:1 for a single acquisition dependent on the model |
| Integration time: | 1 ms – 120 seconds |
| Corrected linearity: | 512, 512-1.9, 512-2.2, 256-2.1: >99.8%; 512-2.5: >99.6% |
| ELECTRONICS | |
| Power consumption: | 250 mA @ 5 VDC |
| Inputs/Outputs: | Yes. Onboard digital user programmable GPIOs |
| Trigger modes: | 4 modes |
| Strobe functions: | Yes |
| Gated delay feature: | Yes |
| Connector: | 30-pin connector |
| DETECTOR | |
| Type: | InGaAs photodiode array |
| Range: | ~800-2500 nm |
| Pixels: | 512 models: 512 256 models: 256 |
| Pixel size: | 512, 512-1.9 models: 25 µm x 500 µm 512-2.2., 512-2.5 models: 25 µm x 250 µm 256 model: 50 µm x 500 µm |
| PHYSICAL | |
| Dimensions: | 182 x 110 x 47 mm |
| Weight: | 1.18 kg (2.6 lb.) |
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