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Related Concept Videos

Mechanical Systems01:22

Mechanical Systems

Mechanical systems are analogous to to electrical networks where springs and masses play similar roles to inductors and capacitors, respectively. A viscous damper in mechanical systems functions similarly to a resistor in electrical networks, dissipating energy. The forces acting on a mass in such systems include an applied force in the direction of motion, counteracted by forces from the spring, a viscous damper, and the mass's acceleration. This interplay of forces is mathematically described...
PD Controller: Design01:26

PD Controller: Design

In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
PI Controller: Design01:24

PI Controller: Design

Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
Radial System Protection01:23

Radial System Protection

Radial systems employ time-delay overcurrent relays to reduce load interruptions. When a fault occurs, the nearest breaker opens first, while upstream breakers remain closed due to longer delay settings. This approach ensures minimal disruption to the rest of the system.
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
Electro-mechanical Systems01:19

Electro-mechanical Systems

Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
Bioreactor Controls-II01:18

Bioreactor Controls-II

In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the fermentor via a sparger...

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Updated: Jul 4, 2026

Optimization, Test and Diagnostics of Miniaturized Hall Thrusters
12:22

Optimization, Test and Diagnostics of Miniaturized Hall Thrusters

Published on: February 16, 2019

DAME: planetary-prototype drilling automation.

B Glass1, H Cannon, M Branson

  • 1NASA Ames Research Center, Moffett Field, California 94035, USA. brian.glass@nasa.gov

Astrobiology
|July 4, 2008
PubMed
Summary
This summary is machine-generated.

The Drilling Automation for Mars Exploration (DAME) project successfully tested adaptive drilling and fault recovery systems. These advancements enable autonomous, hands-off drilling operations for future Mars missions.

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Area of Science:

  • Planetary Science
  • Robotics
  • Geological Engineering

Background:

  • Autonomous drilling systems are crucial for future planetary exploration missions.
  • Previous drilling technologies required significant human oversight.
  • Mars exploration necessitates robust systems capable of operating in extreme environments.

Purpose of the Study:

  • To develop and test an automated drilling system for Mars exploration.
  • To evaluate the performance of adaptive drilling and fault diagnosis software.
  • To demonstrate dynamic recovery capabilities in challenging subsurface conditions.

Main Methods:

  • Utilized a hardened, evolved version of the Advanced Deep Drill.
  • Developed and implemented diagnostic and executive software for autonomous operations.
  • Conducted field testing campaigns in an Arctic analog site during the summer of 2006.

Main Results:

  • Successfully demonstrated adaptively controlled drilling operations.
  • Validated the downhole diagnosis of drilling faults.
  • Showcased dynamic recovery capabilities for unexpected failures and drilling conditions.

Conclusions:

  • The Drilling Automation for Mars Exploration (DAME) project successfully tested key automation technologies.
  • The developed software and hardware are suitable for hands-off surface operations in stressful, extraterrestrial environments.
  • The project provides a foundation for future autonomous drilling systems on Mars.