Telescopic Cylinder Stage Sequencing: Hydraulic vs. Pneumatic LogicCompare 3-stage hydraulic and pneumatic sequencing logic, calculate stage force and speed, then validate valves, sensors, timeouts, and fault response.→Blog Author
Eric Zhou
Hello, I'm Eric, a Bepto Pneumatic control systems engineer. I help connect valve, FRL, CAD, and machine-control requirements with practical pneumatic component choices.
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Articles by Eric Zhou
164 articles sorted newest first for readers who want one author's pneumatic selection notes in one place.
Transient Pressure Response: Measuring Lag Time in Long-Stroke CylindersMeasure long-stroke cylinder pressure lag with 2 synchronized sensors, defined thresholds, and position data that separate wave travel from chamber filling.→
Calculating the Flow Coefficient (Cv) Required for Critical Cylinder SpeedsCalculate pneumatic valve Cv from bore, stroke, target time, pressure, and allowed drop, with a verified 63 mm cylinder example and clear validation steps.→
Why Does Hysteresis Ruin Your Proportional Actuator Precision and How Can You Fix It?Diagnose proportional actuator hysteresis with bidirectional position tests; SMC separates 0.5% FS hysteresis from repeatability and sensitivity in practice.→
Orifice Flow Dynamics in Adjustable Cushion NeedlesLearn why a cushion needle can choke below a 0.528 pressure ratio, calculate compressible airflow, and tune cylinder deceleration from measured pressure data.→
Pneumatic Valve ISO 1219 Symbols: 3/2 vs 5/2Read ISO 1219 pneumatic valve symbols correctly: decode 3/2 and 5/2 ports, positions, flow paths, actuation methods, rest states, and state-table checks.→
Designing Deceleration Profiles to Minimize Cycle TimeDesign pneumatic deceleration profiles using Parker's 50% cushion-entry speed warning, stopping-distance math, energy limits, traces, and acceptance tests.→
Servo-Pneumatics: Modeling the Compressibility Factor in Control LoopsModel a servo-pneumatic axis with four core states, ISO 6358 valve data, absolute chamber pressure, local linearization, identification, and validation.→
Hysteresis Loops in Proportional Pressure Control of CylindersMeasure cylinder pressure-control hysteresis with matched rising and falling steps, a full-scale formula, synchronized traces, and model-specific limits.→