Application Oriented Design of a Prototype Vibration Transducer

  • Dirk Spreemann
  • Yiannos Manoli
Part of the Springer Series in Advanced Microelectronics book series (MICROELECTR., volume 35)


Chapter 4 confirmed important results from the optimization approach in Chap. 3: Regardless of the considered coupling architecture there are dimensions for magnet, coil and (if existent) back iron components which result in a maximum output performance. Because there are separate optima for the output power and output voltage every electromagnetic vibration transducer can be designed either as a voltage– or a power source. Moreover there are architectures which inherently have a better output performance. These architectures should be preferred whenever possible. However, because different design constraints will apply even these architectures must be optimized for each application. Therefore, the optimization procedure developed provides a tool for the development of application oriented electromagnetic vibration transducers. To demonstrate the benefit of the optimization approach in the design process this chapter outlines the development of a prototype vibration transducer based on architecture A II. This architecture was chosen because of the simple assembly and the good voltage generation capability. However a basic drawback of this architecture is that the magnetic field is not channeled with back iron part. Hence the oscillator is sensitive against nonlinear forces generated by ferromagnetic components in the environment. Moreover, eddy currents will take place in metal components that are close to the generator reducing its power output.


Output Power Transient Simulation Spring Element Displacement Limit Engine Order 
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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Dirk Spreemann
    • 1
  • Yiannos Manoli
    • 2
  1. 1.Institut für Mikro and InformationstechnikHSG-IMITVillingen-SchwenningenGermany
  2. 2.IMTEKUniversity of FreiburgFreiburgGermany

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