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Related Concept Videos

Steel Fastening Techniques01:17

Steel Fastening Techniques

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Steel sections can be joined together through various fastening techniques including riveting, bolting, and welding, each suitable for different structural requirements and conditions.
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Energy Neutral Wireless Bolt for Safety Critical Fastening.

Biruk B Seyoum1, Maurizio Rossi2, Davide Brunelli3

  • 1Department of Industrial Engineering, University of Trento, Via Sommarive, 9, 38123 Trento, Italy. birukbelay.seyoum@alumni.unitn.it.

Sensors (Basel, Switzerland)
|September 29, 2017
PubMed
Summary
This summary is machine-generated.

Battery-free wireless bolts powered by thermoelectric generators (TEGs) can monitor critical fasteners. These ambient-powered sensors utilize small temperature differences to operate, enabling continuous monitoring in demanding applications.

Keywords:
IoTPeltierTEGenergy harvestingsmart bolt

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Area of Science:

  • Energy Harvesting
  • Wireless Sensor Networks
  • Materials Science

Background:

  • Thermoelectric generators (TEGs) enable low-power electronics to operate from small temperature gradients.
  • Miniaturized, battery-free sensor modules are increasingly powered by TEGs.
  • Industrial environments present opportunities for waste heat energy harvesting.

Purpose of the Study:

  • To design an ambient-powered wireless bolt for high-end electro-mechanical systems.
  • To integrate a temperature sensor and low-power RF chip powered by a TEG.
  • To optimize TEG and DC-DC converter performance for industrial temperature gradients.

Main Methods:

  • Characterization of various TEGs and DC-DC converters under different load conditions.
  • Design and implementation of a prototype ambient-powered wireless bolt system.
  • Measurement of system power consumption under varying operational conditions.

Main Results:

  • TEGs can generate sufficient power from low temperature gradients for continuous operation.
  • Optimal TEG and DC-DC converter configurations were identified for industrial environments.
  • The prototype system demonstrated reliable wireless monitoring capabilities.

Conclusions:

  • Ambient-powered wireless bolts using TEGs offer a viable solution for monitoring critical fasteners.
  • This technology is suitable for battery-free, continuous sensing in aerospace, motorsport, and avionics.
  • TEG-based power solutions are effective for low-power wireless sensor applications in industrial settings.