对比层
技术对比
客观的跨技术对比与决策框架。厂商无法做到的诚实评估，我们来写。压电占优时推荐压电，不占优时也如实告知。
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