Measurement of Sugar and Moisture in Fruits by Near-Infrared Spectrometers
A breakthrough in agri-tech, NIR spectroscopy enables harmless, rapid fruit component detection. By interpreting near-infrared reflections, it assesses sugars, acids, and moisture, enhancing quality standardization and supply chain efficiency.
The JINSP SR100N series provides high-sensitivity NIR spectroscopy over 0.9–2.5μm. With built-in spectral purification and a stabilized InGaAs detector (512px), they deliver precise measurements in transmissive, reflective, or absorptive modes.
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 |
| 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:
NIR spectroscopy analyzes the 780-2500nm range where molecular vibrations generate spectral patterns. Agricultural samples exhibit wide absorption features from bond vibrations (C-H, O-H), enabling comprehensive chemical profiling and multi-component detection for quality control.
Measurement Method:
- Near-infrared reflection detection method: It is suitable for detecting information on the surface of fruit peels, such as color and luster, but not for internal quality detection.
- Near-infrared transmission detection method: Theoretically, it is applicable to transparent or semi-transparent samples and cannot penetrate fruits. It is less used in practical applications.
- Near-infrared diffuse reflection detection method: It is a measurement method between reflection and transmission, suitable for opaque, solid and semi-solid samples. The obtained spectral information can reflect the characteristics of the internal structure of fruits and is widely used in the detection of internal qualities of fruits (such as sugar content, acidity, etc.).
Applications:
- Quality assessment: Predict quality parameters such as firmness, sweetness, and acidity of fruits.
- Classification and identification: Distinguish and identify the types of different fruits.
- Functional fruit evaluation and screening: It can be used to evaluate and screen functional fruits rich in special components.
- Disease monitoring: It can quickly diagnose diseases such as citrus Huanglongbing and provide early warnings for disease prevention and control.
Company Profile and Exhibition:
JINSP Company Limited originates from Tsinghua University and has 17 years of experience in developing spectroscopic technology.As a leading supplier of spectroscopic technology, JINSP Technology offers over twenty spectroscopic products across various fields, including pharmaceutical and chemical industries, public security, customs, and fiber optic spectrometers. Our products are available nationwide and are exported to over 30 countries, with cumulative sales exceeding 3,000 units.
Our products mostly include:
--UV VIS NIR fiber optic spectrometers;
--Desktop/portable, online Raman analyzers for laboratory or indutrial liquid & gas analysis;
--On-site rapid detectors/identifiers based on Raman technology for drugs, liquid, food safety, explosive & hazardous materials, pharmaceutical industry etc;
FAQ
Q: This is the first time I use,is it easy to operate?
A: We will send you manual and guide vedio in English,it can teach you how to operate the spectrometer.Also our technicians will offer professional tecnical opearation meetings.
Q: Can your offer a operation traning?
A: Your technicians can come to our factory for a training. Jinsp engineers can go to your place for local support( installation , training, debugging, maintenance ).
Q: What's your website?
A: You can visit: www.jinsptech.com
Q: What about your quality assurance?
A: We have a quality inspection team. All goods will go through quality inspection before shipment. We can send you pictures for inspection.
