New Energy Vehicle Industry Solutions

With the popularization of environmental protection concepts and the upgrading of new industries, the global automotive development trend is towards new energy. As the carrier and the core of the vehicle respectively, the health and safety of the vehicle body and battery pack system are crucial to the service life of the entire vehicle. A safe and efficient testing and monitoring solution is essential. As a new type of measurement technology, optical fiber sensing technology has irreplaceable advantages in both battery temperature testing and vehicle body strength detection: 1. High precision and dense sensing points 2. Small size, flexibility, and embeddability 3. Immunity to electromagnetic interference and passive sensing 4. Long service life and reusability The high-precision distributed optical fiber sensing system (OSI) provides unprecedented spatial resolution, enabling blind-zone-free acquisition of test data at various locations and offering reliable and accurate data for strain/temperature fields. The high-speed fiber Bragg grating demodulator (FBGS) can provide sampling speeds at the level of tens of kilohertz, capturing transient change data.

Vehicle Body Strength Testing

Vehicle body structural strength testing ensures that the vehicle can safely and reliably withstand various external forces and loads during use, protecting the safety of occupants. During driving, vehicles encounter complex conditions such as collisions, bumps, and sudden braking, making comprehensive and reliable testing of the vehicle body particularly important. Optical fiber sensing technology is suitable for vehicle body testing under various working conditions, such as static loading of local structures and whole-vehicle condition detection during driving. Through testing, parameters such as the body's strength, durability, and collision performance are obtained, providing scientific data support for manufacturers and users, thereby ensuring the safety and stability of the vehicle during use.

• Brake Disc Temperature Testing — Distributed Optical Fiber Testing

• Anti-collision Beam Impact Strength Testing

• Automobile A-pillar Stiffness Testing

Battery System Testing

Temperature monitoring and lifespan prediction of battery pack systems are crucial links to ensure the overall power performance and safety performance of electric vehicles. As batteries age, their internal resistance increases, leading to more heat accumulation that can easily trigger thermal runaway. How to monitor and even predict the development trend of battery temperature earlier has become a focus of attention for battery manufacturers. External temperature measurement methods can only monitor but not predict. Once overheating and fire occur, the damage to the entire system is irreversible. Optical fiber sensors, which are embeddable, passive, and immune to electromagnetic interference, are undoubtedly the ideal choice for monitoring the internal temperature of battery packs.

• Distributed Optical Fiber Sensor Embedded in Lithium Batteries for Internal Temperature Measurement

• Structural Reliability Verification of Battery Packs — Distributed Optical Fiber Testing

• Surface Temperature Field Monitoring During Battery Discharging Process