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Current measurement

Discussion in 'General Electronics Discussion' started by Sravanthi, Feb 16, 2015.

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  1. Sravanthi

    Sravanthi

    72
    1
    Feb 4, 2015
    Hi...

    Is there any best methods to measure the current with non contact and with better sensitivity in 1A range.

    Thanking you ...
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

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    2,246
    Nov 17, 2011
    You can measure current without direct contact using e.g. a current clamp or a Rogowski coil (both AC only) or a Hall sensor (AC and DC).
    All these methods operate by measuring the magnetic field that is induced by the current. There is no "best" method, you need to analyze the different methods with respect to your requirements (sensitivity, AC/DC current capability, etc.).
     
  3. Gryd3

    Gryd3

    4,098
    875
    Jun 25, 2014
    Keep in mind that measuring current with a non contact method requires that you measure the magnetic field around the conductor...
    If you want more accuracy, you will need to buy a more accurate probe, or a probe that operates in a lower range.
    Additionally, you can put the conductor through the probe more than once, and do a little math to measure smaller currents.
    Here is some more info : http://www.aemc.com/techinfo/techworkbooks/current_measurement_probes/tech_current.pdf
     
  4. Sravanthi

    Sravanthi

    72
    1
    Feb 4, 2015
    Hi...
    I want to measure DC current only...
    I want this measurement with IC form not with probe.
    So better option will be hall sensor.
    Can you give any idea of hall sensor IC numbers.
     
  5. Harald Kapp

    Harald Kapp Moderator Moderator

    10,336
    2,246
    Nov 17, 2011
    Arouse1973 likes this.
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