In cutting-edge fields such as space optical remote sensing, semiconductor imaging, and photoelectric
countermeasures, the performance stability and radiation resistance of photoelectric imaging devices
directly determine the reliability and lifespan of the system. In the face of complex radiation environments
and strict technical indicators, how can the precise measurement and performance optimization of the
core parameters of photodetectors be achieved? The 7-CRD CCD photoelectric performance measurement
system independently developed by Saifan Optoelectronics, with full-band coverage, high-precision
quantification and multi-dimensional analysis as its core advantages, provides a one-stop solution for
the optoelectronic industry and has become a "powerful performance testing tool" for scientific research
institutions, aerospace research institutes and military industrial enterprises.
I. Core Technology Breakthrough: Full parameter coverage, Solving Industry Pain points
The 7-CRD CCD photoelectric performance measurement system breaks through the limitations of traditional
testing equipment, achieving wide spectral coverage from 380nm to 1000nm, covering the visible light
to near-infrared bands, and meeting the testing requirements of multiple components such as aerospace-grade
CCDS, infrared detectors, and CMOS sensors. Its core parameter indicators have reached the industry-leading
level:
The spectral resolution is ≤0.5nm, accurately capturing the subtle changes in the device response.
Dynamic range ≥80dB, covering the entire scene from weak light detection to strong light saturation.
The A/D quantization level is 14-bit, ensuring an extremely high signal-to-noise ratio for data acquisition.
The absolute value uncertainty of measurement is less than 8%, and the repeatability error is ≤3%,
providing a reliable basis for the performance evaluation of the device.
The system can simultaneously test 13 key parameters, including saturation output voltage, dark noise,
charge transfer efficiency (CTE), spectral transfer function (MTF), etc., comprehensively revealing the performance
attenuation law of the device in a radiation environment. For instance, in the anti-radiation reinforcement
design of a certain aerospace institute, the system successfully optimized the quantum efficiency of the
device and the anti-radiation coating scheme through precise measurement of the light irradiation responsivity
(R) and the relative spectral responsivity (Rs), reducing the performance degradation rate of the device
by 40% at a radiation dose of 100krad.
Ii. Scenario-based Applications: The "Performance Escort" from the Laboratory to Space
Research and development of space optical remote sensors
In the development of satellite payloads, the 7-CRD system, through tests of responsivity non-uniformity
(PRNU) and noise equivalent exposure (NEE), assists engineers in screening imaging devices with high
consistency and low noise, ensuring the clarity and signal-to-noise ratio of remote sensing images. The
CCD detector carried by a certain type of hyperspectral satellite, after system optimization, has improved
its spectral response consistency to 98%, and the image quality has reached the international advanced
level.
Design and verification of anti-radiation reinforcement
Aiming at the radiation damage problem of aerospace devices, the system can simulate the performance
degradation in the space radiation environment. The charge transfer efficiency (CTE) attenuation curve is
obtained through long-term irradiation experiments, providing data support for the design of radiation-resistant
reinforcement. A certain military industry project has passed systematic tests, extending the radiation resistance
life of the devices from two years to more than five years, significantly reducing the maintenance cost ofspacecraft.
Selection and Optimization of Photoelectric Imaging devices
In fields such as industrial inspection and medical imaging, the system helps enterprises quickly screen
high-performance devices through tests of saturation exposure (SE) and dynamic range (DR). After a
certain semiconductor manufacturer optimized the CMOS sensor through the system, the imaging quality
of its products in high dynamic range scenarios improved by 30%, successfully entering the high-end medical
imaging market.
Iii. Technological Innovation: Modular Design and Intelligent Upgrade
The 7-CRD system adopts a modular design concept, allowing users to flexibly configure modules such as
light sources, spectrometers, and detectors according to their needs, and is suitable for diverse scenarios
ranging from laboratory research and development to production line testing. The system is equipped with
the intelligent testing software independently developed by SOFN Instruments, which supports one-click
automated testing processes and generates real-time visual reports, significantly enhancing testing efficiency.
In addition, the system reserves a rich array of interfaces and protocols, enabling seamless integration with
third-party devices and supporting future technological upgrades.
Iv. User Word-of-Mouth: Dual Recognition from research and industry
Since its launch, the 7-CRD system has been serving top research institutions and enterprises such as
the Chinese Academy of Sciences, China Aerospace Science and Technology Corporation, and China
Electronics Technology Group Corporation, becoming the "standard tool" in the field of photoelectric
performance testing. A laboratory of a certain university provided feedback: "The high precision and
stability of the system have greatly shortened the device research and development cycle, enabling us
to make breakthrough progress in the research of radiation-resistant materials." A certain photovoltaic
enterprise commented: "The system has provided reliable data for our battery spectral response test,
helping to increase product efficiency by 1.5%."
Conclusion: Illuminate the future of optoelectronics with the light of technology
The 7-CRD CCD photoelectric performance measurement system of SOFN Instruments, with full
parameter coverage, high-precision quantification and scenario-based application as its core competitiveness,
provides full-chain support from R&D to mass production for the optoelectronic industry. Whether it is
remote sensing satellites exploring the deep space of the universe, medical equipment safeguarding life
and health, or photovoltaic technology promoting green energy, the 7-CRD system has always been
committed to the mission of "precision, reliability and efficiency", helping China's optoelectronic industry
scale the peak of technology.
Choose SOFN Instruments 7-CRD and make every piece of optoelectronic performance data reliable!
Beijing Saifan Optoelectronic Instrument Co., LTD
Address: No. 16, Guanghua Road, Zhangjiawan Town, Tongzhou District, Beijing
Official website: www.7-s.com.cn
Service Hotline: 010-80885970
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