Hi Listmembers: Today's weird science question is about sensing the strength of a permanent magnetic field.
I need to expose an electronics box to a strong magnetic field (10 Gauss). Then, after removing the field, I need to approach the box with a "compass" and note the separation distance needed to deflect the compass needle a couple of degrees. A couple of degrees is pretty hard to read, even on a large compass! The purpose of the test is to make sure that objects exposed to temporary magnetic fields do not retain enough field to disrupt a nearby magnetic compass. I am trying to determine what kind of sensor I can use. I have been looking at electronic compass modules. Some models provide a DC analog output voltage proportional to angle or heading. Has anyone tried this method? Are the modules stable enough for this to work? Is there a big problem with the placement of the data output lines? Thanks, Ed :-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-) Ed Price [email protected] Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 619-505-2780 (Voice) 619-505-1502 (Fax) Military & Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis :-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-) --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
