BIKAI Technology Co., Ltd. - As core devices in environmental and industrial monitoring, gas sensors’ accuracy declines due to drift from aging, interference or damage. Calibration corrects deviations by linking output signals to target gas concentrations via standard references.
I. Basic Principles
Sensors convert gas concentration to electrical signals. Drift (zero/span) distorts signal-concentration relations. Calibration uses standard gas to fit accurate models, minimizing measurement errors within specified ranges (e.g., ≤±5%FS).II. Core Methods
Standard Gas Method: High-precision, traceable to national standards. Uses certified gas to generate calibration curves. Requires special equipment, with high cost.Comparison Method: Low-cost, uses calibrated reference sensors. Simple for on-site batch calibration but relies on reference stability.Self-Calibration: Automatic zero/span calibration via built-in design, ideal for real-time scenarios without manual intervention.
Gas Sensor Calibration: Principles & Methods
classify：PID sensor time：2026-01-07