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General Question about force

  1. Feb 18, 2008 #1
    I have an application i am looking at with the following description:
    i have a solenoid with a plunger held in place by a magnetic force. I have to test the breaking force of the magnet to verify it is at least 5 pounds of force. If i hang a 5 pound weight from the plunger and hold it steady it will not break. my test that i am performing is under a bit different circumstances. i am using an electric slide unit to move the solenoid as i hold the plunger in place using a clip attached to a load cell. the load cell gives me feed back to show the amount of force generated. (it has been properly calibrated) When i pull the solenoid at 1mm/sec i never generate 5 pounds of force. i assume it is because of the velocity involved and i was wondering if anyone has any ideas. maybe my load cell isnt updating fast enough but i am thinking maybe there is a difference with a static load versus a moving load in what i should read. but please let me know if you have any ideas.
  2. jcsd
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