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Related Experiment Video

Updated: May 31, 2026

Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Architectures for ultrasonic planetary sample retrieval tools.

Patrick Harkness1, Margaret Lucas, Andrea Cardoni

  • 1School of Engineering, University of Glasgow, Glasgow, UK. patrick.harkness@glasgow.ac.uk

Ultrasonics
|July 1, 2011
PubMed
Summary

Ultrasonic planetary drills overcome challenges of traditional rotary corers by using low impact frequencies. A solid transducer design with a single free-mass offers optimal performance for space exploration sample retrieval.

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Area of Science:

  • Planetary Science
  • Mechanical Engineering
  • Robotics

Background:

  • Traditional rotary corers face significant challenges in low-gravity environments, including high preload and torque requirements.
  • Current methods often necessitate full drillstring removal for sample retrieval, risking loss of stratigraphic sequence.

Purpose of the Study:

  • To address the limitations of conventional planetary drilling systems.
  • To evaluate architectural design choices for ultrasonic drilling tools, focusing on transducer, horn, and stack configurations.

Main Methods:

  • Comparative analysis of solid versus hollow transducers.
  • Evaluation of single versus multiple free-mass configurations for ultrasonic to low-frequency conversion.
  • Assessment of system performance within a defined parameter range.

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Simulation of the Planetary Interior Differentiation Processes in the Laboratory
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Simulation of the Planetary Interior Differentiation Processes in the Laboratory

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Related Experiment Videos

Last Updated: May 31, 2026

Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

Simulation of the Planetary Interior Differentiation Processes in the Laboratory
06:04

Simulation of the Planetary Interior Differentiation Processes in the Laboratory

Published on: November 15, 2013

Main Results:

  • Ultrasonic tools require significantly lower preload and no torque, simplifying operation in low gravity.
  • A solid transducer architecture with a single free-mass demonstrated superior performance characteristics.

Conclusions:

  • Ultrasonic drilling technology presents a viable solution for planetary sample retrieval.
  • The proposed solid system with a single free-mass is recommended for optimal performance in space exploration drilling applications.