In the rapidly evolving field of optoelectronic sensing technology, machine vision, often referred to as the "keen eye" of artificial intelligence, has significantly enhanced our ability to perceive the precise dimensions and shapes of objects. Furthermore, through spectral detection technology, it has unveiled the spectral information of objects, a data fusion of wavelength and light intensity, widely applied in various fields such as industry, healthcare, and agriculture. Spectral detection, an essential driver of technological progress, relies on detectors, which can be categorized into linear array detectors and area array detectors based on the arrangement of their pixels. Each type has unique characteristics, excelling in its respective application domain.
1. Linear Array Detectors
Linear array detectors, as the name suggests, have pixels arranged linearly in one dimension, resembling a narrow spectral "scanning strip." To obtain two-dimensional image information, scanning technology is required to scan the target object row by row or column by column. Despite the somewhat cumbersome process of obtaining a complete image, linear array detectors exhibit extraordinary advantages in specific fields.
● High-speed acquisition: Known for their high line frequency, linear array detectors can rapidly complete data acquisition and processing, providing users with highly efficient measurements.
● Cost-effectiveness: Although linear array detectors may fall short in total pixel count compared to area array detectors, their flexible pixel size design and high cost-effectiveness make them a popular choice in many applications.
● High sensitivity: Particularly in the ultraviolet region, linear array detectors with longer vertical pixel lengths on the light-receiving surface maintain high sensitivity and have good UV resistance, extending the device's lifespan.
2. Recommended Linear Array Products
CMOS Linear Image Sensors for Jinsp SR50C, SR75C Fiber Optic Spectrometers: These sensors, with a spectral response range of 200-1000nm (customizable within this range), have high sensitivity in the ultraviolet to near-infrared regions and a flat spectral response within the range. They are widely used in various fields such as industry, healthcare, environmental protection, etc., for applications like smoke, water quality, LIBS, laser characterization, and Raman spectroscopy. These high-sensitivity CMOS linear image sensors, with longer vertical pixel lengths on the light-receiving surface, maintain high sensitivity in the UV region and have high UV resistance, extending the spectrometer's lifespan. For more details, visit the following link: Universal Compact Fiber Spectrometer - JINSP Company Limited (jinsptech.com)
InGaAs Linear Image Sensors for Jinsp SR50R17, SR50N14, SR100N17, SR100N25, ST50S Near-Infrared Spectrometers: With a detection range of 900-2500nm (customizable within this range), these sensors are widely used for sorting and detecting organic materials such as grains, cereals, beans, oils, and plastics. For more details, visit the following link: Near-infrared Fiber Spectrometer - JINSP Company Limited (jinsptech.com)
3. Area Array Detectors
Unlike linear array detectors, area array detectors have pixels arranged in a two-dimensional matrix, akin to a precise spectral "snapshot." They can capture complete two-dimensional images in a single exposure, eliminating the need for scanning and greatly simplifying the operation process, enhancing data processing convenience. Some deep space exploration, medical detection, and laboratory research-grade spectral detections utilize area array detectors with millions or even tens of millions of pixels, where their excellent detection performance often comes with a high price.
● High sensitivity: Area array detectors can receive light from a larger area, resulting in higher spectral intensity, making them particularly suitable for detecting weak signals.
● High resolution: Commercial fiber optic spectrometers often feature area array detectors with pixel matrices of several million or more, ensuring high image clarity and rich detail.
● Low dark noise and high signal-to-noise ratio: These characteristics make area array detectors outstanding in weak light detection fields such as fluorescence detection, Raman signal analysis, and absorbance measurement, earning wide recognition from research-grade customers.
4. Recommended Area Array Products
Area Array Detectors for Jinsp SR100Q, SR100B, SR100Z, SR150S, ST90S, ST100S Spectrometer Products: These detectors feature low dark noise, high signal-to-noise ratio, high sensitivity, and high resolution, with a spectral range of 185-1100nm. The wide spectral range brings more valuable application exploration, with outstanding performance in weak light detection such as fluorescence detection, Raman signals (gas, liquid, solid), and absorbance, providing researchers with more valuable experimental data and exploration space, thus driving continuous technological progress. For more details, visit the following links: High Performance Back-illuminated Fiber Spectrometer - JINSP Company Limited (jinsptech.com) 、Scientific Grade CCD Fiber Spectrometer - JINSP Company Limited (jinsptech.com)、High-Throughput Transmission Fiber Spectrometer - JINSP Company Limited (jinsptech.com)
5. Conclusion
Linear array detectors and area array detectors each shine in their respective application scenarios with their unique advantages. When selecting a spectrometer, users should consider their actual needs and budget, comprehensively evaluating the performance characteristics of the detectors to ensure optimal measurement results and cost-effectiveness.
Post time: Jul-04-2024