Comparison Layer
Technology Comparisons
Honest cross-technology comparisons and decision frameworks. No vendor can write these honestly. This desk can. Piezo wins when it wins on the merits. When it doesn't, you'll know that too.
Piezo vs. voice coil: the honest comparison for sub-mm stroke positioning
Force, bandwidth, thermal load, and the real tradeoffs between the two dominant sub-millimeter actuator technologies
Piezo vs. servo motor: when direct drive stops making sense
Force density, resolution floors, bearing overhead, and the crossover point where ultrasonic piezo motors outperform electromagnetic servos
Piezo vs. stepper: resolution, noise, and why steps are the enemy of precision
Vibration, microstepping myths, resonance traps, and the quantitative case for piezo in precision positioning
Technology selection framework: five questions that determine your motor choice
A structured decision process with specific thresholds for choosing between piezo, servo, stepper, and voice coil actuators
Understanding load-stroke-resolution tradeoffs across actuator technologies
The fundamental physics that prevent any single actuator from excelling at force, travel, and precision simultaneously
EMI, magnetic fields, and cleanroom compatibility: a technology comparison
Quantitative analysis of electromagnetic interference, stray magnetic fields, particle generation, and outgassing across actuator technologies
Piezo motion technologies compared: standing wave, traveling wave, inertia, and beyond
Operating principles, performance envelopes, and selection criteria for the major families of piezoelectric motor and actuator technology