Trying to make an electromagnetic shaker device

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Discussion Overview

The discussion centers around the feasibility of creating an electromagnetic shaker device using a solenoid and an iron core to shake a magnet at a distance. Participants explore various approaches and considerations related to the design and functionality of such a device.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant proposes wrapping an iron core with a solenoid and using AC to shake a magnet, expressing uncertainty about the approach and feasibility.
  • Another participant suggests that the concept is similar to a speaker, implying a potential existing model for reference.
  • A different viewpoint introduces the idea of using a variable speed DC motor with an eccentric weight as an alternative method for shaking, citing its effectiveness and convenience compared to driving a solenoid.
  • Further inquiries are made regarding the specific requirements for the shaking, including the power needed, the distance to be covered, and the nature of the object to be shaken.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best approach to create the electromagnetic shaker, with multiple competing views on feasibility and methods remaining unresolved.

Contextual Notes

Participants highlight the importance of power requirements and distance in determining feasibility, indicating that these factors are crucial but not fully defined in the discussion.

Who May Find This Useful

Individuals interested in electromagnetic devices, mechanical engineering, or those exploring alternative methods for creating vibration or shaking mechanisms may find this discussion relevant.

derekmatthew
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Hello, I'm trying to make an electromagnetic shaker but I'm not sure if this is possible? Basically I want to wrap an iron core with a solenoid and use AC to shake a magnet at some distance away. I'm not certain on the approach at the moment but I'm kind of looking at the feasibility at the moment.
 
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If you want to shake something at a variable and controllable rate then a variable speed DC motor with an eccentric weight on the shaft will satisfy many requirements. Crude but very effective and will work at a range of powers. 500W Brushless motors are available for small machine tools and they work well. The motor can be fixed rigidly and the eccentric can be at the end of a flexible shaft if you need high power.
Driving a solenoid with a variable low frequency power signal is nothing like as convenient.
What is the precise requirement?
 
Feasibility depends on the power and the distance.

What are you trying to shake?
How fast?
What distance?

As @Bystander said, a speaker is a shaker. But if you want to shake a ton of gravel that's very different.
 
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