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Robot Data and Hardware

English articles about robot data and hardware at Physical AI Lab.

Robot Joint Friction Compensation: Modeling, Feedforward and Validation

Published: July 29, 2026 · Updated: August 1, 2026 by Physical AI Lab
Robot joint friction compensation across stiction Coulomb Stribeck and viscous regimes

Model robot joint friction with bidirectional sweeps, temperature and load tests, then validate feedforward, observers, reversal chatter and tracking.

Categories Robot Data and Hardware

Cogging Torque vs Torque Ripple: Diagnosing Low-Speed Robot Joint Vibration

Published: July 29, 2026 · Updated: August 1, 2026 by Physical AI Lab
Cogging torque versus torque ripple in robot joint motors

Compare cogging torque and torque ripple in robot motors with no-current tests, angle and order analysis, current-loop checks and low-speed validation.

Categories Robot Data and Hardware

Robot Inference Latency: From Camera Exposure to Actuator Command

Published: July 29, 2026 · Updated: August 1, 2026 by Physical AI Lab
Robot inference latency from sensor capture to actuator application

Measure robot inference latency from camera exposure to actuator command, including queues, copies, preprocessing, model time, tail latency and data age.

Categories Robot Data and Hardware

Robot Functional Safety: PL, SIL and Safety-Function Validation

Published: July 29, 2026 · Updated: August 1, 2026 by Physical AI Lab
Performance Level and Safety Integrity Level for robot safety functions

Learn robot functional safety PL and SIL targets, safety-function architecture, diagnostics, PFHd evidence, fault injection, stop testing and validation.

Categories Robot Data and Hardware

Robot Grasp Planning: Candidates, Contact Quality and Executable Picks

Published: July 29, 2026 · Updated: August 1, 2026 by Physical AI Lab
Robot grasp planning from perception to execution

Plan robot grasps from uncertain object geometry through contact scoring, IK, collision filtering, approach, lift, tactile checks and held-out pick tests.

Categories Robot Data and Hardware

Robot VLA Evaluation: Tasks, Generalization, Latency and Safety Evidence

Published: July 29, 2026 · Updated: August 1, 2026 by Physical AI Lab
Evaluation framework for robot vision language action policies

Evaluate robot VLA policies with reproducible task strata, progress metrics, confidence intervals, latency, shift tests, interventions and failure analysis.

Categories Robot Data and Hardware

Robot Action Chunking: ACT, Temporal Ensembling and Closed-Loop Execution

Published: July 29, 2026 · Updated: October 4, 2026 by Physical AI Lab
Robot action chunking with overlapping predictions and replanning

Understand robot action chunking, ACT, temporal ensembling, chunk and execution horizons, imitation data, latency, disturbances and safety tests.

Categories Robot Data and Hardware

Diffusion Policy for Robots: Action Denoising and Receding-Horizon Control

Published: July 29, 2026 · Updated: September 8, 2026 by Physical AI Lab
Diffusion policy for conditional robot action generation

Learn robot diffusion policy action denoising, observation and action horizons, receding-horizon execution, latency, training data and safety tests.

Categories Robot Data and Hardware

Robot System Identification: Excitation, Estimation and Validation

Published: July 29, 2026 · Updated: August 1, 2026 by Physical AI Lab
Robot system identification from excitation through held-out validation

Identify robot dynamics with safe excitation, synchronized data, estimable parameters, physical constraints, residual analysis and held-out validation.

Categories Robot Data and Hardware

Robot Collision Detection: Torque Sensors, Current and Disturbance Observers

Published: July 29, 2026 · Updated: August 1, 2026 by Physical AI Lab
Robot collision detection using torque current and disturbance estimation

Compare robot collision detection using torque sensors, motor current and disturbance observers, thresholds, detection time and stop validation.

Categories Robot Data and Hardware
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