detection methods

High Sensitivity Detection of Lithium Plating in High-Energy Lithium-Ion Batteries Based on Time-Domain Distribution Relaxation Times Analysis

by
High Sensitivity Detection of Lithium Plating in High-Energy Lithium-Ion Batteries Based on Time-Domain Distribution Relaxation Times Analysis

The team from the National University of Defense Technology proposed a lithium dendrite detection method based on time-domain relaxation time distribution (DRT), achieving an accuracy rate of over 99% after 240 cycles under different charging conditions, and can be integrated into existing Battery Management Systems (BMS) without additional hardware. The team automatically set the detection … Read more

Focusing Principles of Camera Modules

by
Focusing Principles of Camera Modules

The focusing principle of camera modules is achieved by precisely controlling the distance between the lens and the image sensor, allowing light to focus accurately on the photosensitive element. The core mechanism can be divided into the following three levels of implementation: 01 Optical Physics Basics ‌Driven by the Gaussian Imaging Formula‌According to the optical … Read more