For premium smart dispensers, knowing "water or no water" is insufficient—high precision liquid level detection is essential. It enables accurate volume display, intelligent refill control, and precise filter usage calculation. Shenzhen StarCore Technology Co., Ltd.'s high-precision capacitive solution elevates detection capability.3 Technical Cores for High Precision:1. High-Sensitivity IC & Front-End DesignWe select or customize high-resolution, low-noise Capacitance-to-Digital Converter (CDC) chips, detecting changes at the femto-farad (fF) level. Paired with optimized electrode design, this ensures a high signal-to-noise ratio at the source.2. Advanced Digital Signal Processing (DSP) AlgorithmsRaw capacitance signals are affected by temperature drift, material inconsistency, and EMI. StarCore's firmware integrates proprietary adaptive filtering, temperature compensation, and baseline calibration algorithms to dynamically cancel noise, extracting the pure level-change signal for stable, high-precision output.3. Multi-Point Calibration & LinearizationFor continuous output, we perform multi-point calibration during production, establishing an exact map between capacitance and actual level height. Software linearization then ensures high linearity across the entire range.Application Value:Our solution achieves detection accuracy within ±1-3mm. This enables features like "percentage volume display," "small-quantity dispensing (e.g., 100ml)," and "PID-controlled precise refill based on real-time level."Shenzhen StarCore Tech empowers your product to leap from "vague sensing" to "precise measurement."
