Suzhou Mianrui Electronic Technology Co., Ltd. specializes in the R&D, application and production of Electromagnetic Micro-Acoustic (EMMA) technology. Built around high-temperature EMMA identification, pulse radar and process-industry intelligent agents, we serve key sectors including steel, non-ferrous metals, rail transit and national defense, delivering core sensing products for smart manufacturing and resolving industry-wide challenges such as power access and sensing in ultra-high-temperature environments.
Our team has conducted research in related fields for over 25 years and is one of the few teams in China with full-chain R&D capabilities covering chip simulation design, process manufacturing, radar system development and antenna design.
With fully independent core technologies and intellectual property, our core team members come from prestigious universities including Shanghai Jiao Tong University, the University of Freiburg (Germany) and Chiba University (Japan), comprising professors, PhDs and internationally renowned IEEE Fellows. The team has led dozens of national, provincial and defense projects in the field of Surface Acoustic Wave (SAW) sensors.
Sensible in extreme conditions, reliable for smart manufacturing.
Siemens successfully develops SAW RFID technology for high-speed railway identification
Shanghai Jiao Tong University begins SAW technology research
Siemens' micro-acoustic team is sold and later dissolved; Austria's CTR company runs the first steel ladle ID trial with the technology
Our team receives 3 consecutive NSFC grants, researching micro-acoustic theory, piezoelectric materials and EDA simulation software
A Baowu steel plant runs the first SAW RFID trial in its "one-click steelmaking" project
First-generation products installed on 39 ladles in the No.1 steelmaking plant of a Baowu plant
Second-generation products developed and installed on 110 hot metal ladles at Jiangsu Yonggang
Third-generation products developed; tag housing uses aviation-grade materials to withstand molten steel splash
System runs stably for 2 years; fully deployed across No.1/2/3 steelmaking and EAF plants at Jiangsu Yonggang Group
Ladle ID at Baosteel Zhanjiang steelmaking plant adopts this technology
After 2 years of stable operation, reliability recognized by the owner; EMMA-ID technology officially promoted in the steel industry
Full EMMA product line successfully deployed at 45+ steel plants and nearly 10 non-ferrous companies nationwide, earning unanimous industry acclaim
After 15 years of high-temperature micro-acoustic chip R&D, the team keeps driving the technology into new scenarios and fields, incubating the steel-industry industrial agent "Gangling", striding toward higher, farther and stronger goals
SAW-based passive high-temperature ID · pulse radar · process-industry agents
Inherently passive, no power supply needed, lifespan over 40 years
Piezoelectric material withstands -200℃~1100℃, tags work long-term at 450℃
Chip structure guarantees accuracy with zero cross-reading
Long-term stable operation, no battery or tag replacement, near-zero maintenance
ID recognition integrated with temperature, pressure and positioning sensing
Complete in-house chain: device simulation, fabrication, radar and antenna design
Aerospace-grade housing resists 1200℃ molten steel splash
Reads through 1.3m of soil or 0.8m of water coverage
Just-in-time steelmaking, high-temperature ladle safety monitoring, casting-pit alignment with 5-20cm radar positioning.
Full-life recognition & control of copper slag buckets under extreme heat, dust and steam.
Wireless passive high-temperature monitoring for artillery barrels and marine engine bearings.
Baosteel Steelmaking Site
Zhanjiang Steel Furnace Area
Longmen Steel Crane Bay
Yongfeng Steelmaking ShopYunnan Copper Cooling YardHigh-temperature identification & radar solutions for steel, non-ferrous, rail transit and defense applications.
