Meaning
Electronic filtering methods that extract the maximum points from a modulated wave signal constitute this processing technique. Accurate envelope peak detection allows sensors to identify discrete events within a noisy cavity pressure curve. Moulding controllers use these signals to switch from injection to packing phases at the exact moment the resin fills the mould.
The detection method ignores high-frequency jitter to focus on the overall pressure trend.
Signal Processing
Algorithm logic inside the monitoring hardware traces the outline of the sensor voltage to determine the peak load. Effective isolation of the signal requires a balance between response speed and noise rejection. Low-pass filters often assist in smoothing the input before the detection stage begins.
Process Control
Switchover accuracy depends upon how cleanly the hardware can spot the sudden rise in hydraulic or cavity force. Inconsistent envelope peak detection results in part weight variations and flashing defects. Process windows tighten as the controller improves its sensitivity to these peaks.
Algorithm Limit
Saturation of the sensor input prevents the system from distinguishing between the true peak and flatlined data. High resolution converters preserve the dynamic range needed for reliable operation. Consistent detection ensures part repeatability over thousands of cycles.
