Revision as of 23:17, 29 March 2016 edit BG19bot (talk \| contribs) 1,005,055 edits m →Related technologies: Remove blank line(s) between list items per WP:LISTGAP to fix an accessibility issue for users of screen readers. Do WP:GENFIXES and cleanup if needed. Discuss this at [[Wikipedia talk:WikiProject Accessibility#LIS... ← Previous edit		Revision as of 07:58, 17 June 2017 edit undo Thegreatgrabber (talk \| contribs) Autopatrolled, Extended confirmed users, Pending changes reviewers 2,360 edits →Operating principle: Reword Tags: Mobile edit Mobile web edit Next edit →
Line 11: == Operating principle == The MM feature is encoded in the middle layer of an [[ISO/IEC 7810]] card as a [[bar code]] formed by two materials with different electrical properties.<ref name="ct1996"/> A capacitive sensor head near the magstripe reader observes the ~~alternating~~changing ~~capacity~~capacitance as the card is moved past the sensor and decodes the represented number. This sensor works in a similar fashion to the magnetic read head found in a magstripe card reader, except that it senses not a change in [[magnetic flux]], but a change in the [[dielectric constant]] of the card's material. It reads a second data stripe that, unlike the magstripe, cannot easily be rewritten with off-the-shelf equipment. == Related technologies ==

MM code: Difference between revisions