Revolutionary 900nm - 2500nm Near-Infrared Spectrometer for Accurate Sugar and Moisture Measurement in Fruits
Product Specifications
| Attribute |
Value |
| Measurement Range |
900nm~2500nm |
| Wavelength Repeatability |
±0.05 nm |
| Type |
Refrigerated linear array InGaAs |
| Sensing Area |
12.8mm*0.5mm |
| Entrance Slit Width |
5μm,10μm,25μm,50μm (customizable) |
| Incident Light Interface |
SMA905 fiber interface, free space |
Measurement of Sugar and Moisture in Fruits by Near-Infrared Spectrometers
Near-infrared spectroscopy technology provides rapid, non-destructive detection for fruit quality inspection. By analyzing spectral characteristics in the near-infrared region, it enables precise measurement of internal fruit components (sugars, acidity, moisture) to support quality assessment, grading, storage, and processing decisions.
The JINSP SR100N17 and SR100N25 near-infrared refrigerated spectrometers offer versatile applications across 0.9 to 1.7μm or 0.9 to 2.5μm wavelength ranges. Featuring integrated light filters and a cooled 512-pixel InGaAs sensor array, these instruments deliver high resolution with minimal stray light, suitable for transmission, reflection, or absorption measurement methods.
Technical Specifications
| Performance Indicators |
SR100N17 |
SR100N25 |
| Detector |
| Type |
Refrigerated linear array InGaAs |
| Effective Pixel |
512 |
| Pixel Size |
25μm*500μm |
| Sensing Area |
12.8mm*0.5mm |
| Optical Parameters |
| Wavelength Range |
900-1700nm |
900-2500nm |
| Optical Resolution |
3.1nm(@25μm) |
6.3nm(@25μm) |
| Optical Design |
F/4 cross-type |
| Numerical Aperture |
0.14 |
| Focal Length |
100mm |
| Entrance Slit Width |
5μm,10μm,25μm,50μm (customizable) |
| Incident Light Interface |
SMA905 fiber interface, free space |
| Electrical Parameters |
| Integration Time |
1ms-12s |
1ms-200ms |
| Data Output Interface |
USB2.0, UART |
| ADC Bit Depth |
16-bit |
| Power Supply |
DC4.9 to 5.1V(type @5V) |
| Operating Current |
＜3A |
| Environmental Parameters |
| Operating Temperature |
10°C~40°C |
| Storage Temperature |
-20°C~60°C |
| Operating Humidity |
＜90%RH (no condensation) |
| Physical Parameters |
| Dimensions |
178mm*123mm*49mm |
| Weight |
1.2kg |
Measurement Principle
The NIR band (780nm to 2500nm) triggers molecular vibrational responses through light absorption, generating spectral data directly related to sample composition. In agricultural analysis, broad peaks reveal frequency doubling and combined vibration effects from organic functional groups (C-H, O-H, N-H bonds), enabling comprehensive quality assessment of multiple components.
Measurement Methods
- Near-infrared reflection: Detects surface characteristics (color, luster) but not internal quality.
- Near-infrared transmission: Suitable for transparent samples; limited fruit penetration.
- Near-infrared diffuse reflection: Ideal for opaque solids, revealing internal fruit structure for sugar content, acidity, and other quality parameters.
Applications
- Quality assessment: Measure firmness, sweetness, and acidity.
- Classification: Identify different fruit types.
- Functional fruit evaluation: Screen for special components.
- Disease monitoring: Diagnose conditions like citrus Huanglongbing.
About JINSP Technology
Originating from Tsinghua University with 17 years of spectroscopic expertise, JINSP offers over twenty spectroscopic products for pharmaceutical, chemical, public security, and customs applications. Our instruments are used nationwide and exported to 30+ countries, with 3,000+ units sold.
Product Range Includes:
- UV VIS NIR fiber optic spectrometers
- Desktop/portable Raman analyzers for laboratory/industrial liquid & gas analysis
- On-site rapid detectors for drugs, food safety, explosives, and hazardous materials
Frequently Asked Questions
Q: This is my first time using the spectrometer. Is it easy to operate?
A: We provide an English manual and instructional video, along with professional technical support meetings.
Q: Do you offer operation training?
A: Your technicians can receive training at our facility, or our engineers can provide on-site support for installation, training, and maintenance.
Q: What is your website?
A: Visit www.jinsptech.com for more information.
Q: What about your quality assurance?
A: Our quality inspection team rigorously tests all products before shipment, with documentation available upon request.
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