Meaning
A distributed array of paired sensing elements captures simultaneous thermal and mechanical strain data points across the surface or interior of a battery module. Integration of a dual sensor node matrix enables simultaneous mapping of localized heat generation and structural expansion during aggressive charge cycles. Operational boundaries cover physical sensor placement within module enclosures, excluding remote data logging software and cloud management platforms.
Commercial procurement specifies sensor node density based on cell geometry and thermal management layout.
Signal Multiplexing
Interrogator units process optical or electrical signals from multiple paired sensing points sequentially over a single transmission channel. High-speed optical switches switch wavelengths rapidly to maintain high temporal resolution across large sensor arrays. Multiplexing architectures reduce wiring overhead while maintaining high acquisition speed.
Spatial Layout
Grid placement across cell surfaces isolates spatial variations in temperature and strain. Engineering teams embed a dual sensor node matrix along high-stress thermal zones to detect early hot spots before pack-level sensors register temperature shifts. Strategic layout prevents localized thermal events from going unnoticed.
Measurement Precision
Collocated sensors compensate for environmental cross-sensitivity between thermal and mechanical inputs. Calibration protocols isolate strain readings from temperature-induced optical shifts using differential signal algorithms. High measurement accuracy ensures reliable inputs for predictive aging models.
