Company Profile

VA Technology Co., Ltd. is a high-technology enterprise specializing in the research, development, and application of laser photoacoustic spectroscopy gas detection technology. Headquartered in the Optics Valley of China (Wuhan East Lake High-Tech Development Zone), VA Technology holds proprietary intellectual property rights for core semiconductor laser photoacoustic spectroscopy (L-PAS) technology. The company is dedicated to delivering industry-leading dissolved gas analysis (DGA) online monitoring solutions for the global power industry.

The company’s flagship product, the PASL-3000 Laser Photoacoustic Spectroscopy Transformer Dissolved Gas Analysis Online Monitoring System, is the first system to combine semiconductor laser technology with photoacoustic spectroscopy for smart grid applications. The product has been certified to IEC 60567, IEC 60599, IEEE C57.104, DL/T 722, and Q/GDW 10536 international and domestic standards, and has been widely deployed across UHV substations, HVDC converter stations, renewable energy plants, and heavy industrial facilities.

Core Competencies

• Proprietary Core Technology: Semiconductor laser photoacoustic spectroscopy (L-PAS) with a spectral linewidth of 15 fm — zero cross-interference between gas species
• Full Value Chain Capability: Complete in-house R&D from laser diode packaging and photoacoustic cell design to system integration and application software
• International Certifications: Tested and certified to IEC, IEEE, and GB standards
• Field-Proven Reliability: Over 100 substation installations covering the full spectrum — UHV AC, HVDC, and renewable energy applications
• Global Reach: Products exported to Southeast Asia, the Middle East, Africa, and South America

Corporate Information