Typical implementations of distance measurements use expensive rare-earth magnets. To lower overall system cost: this reference design walks through the implementation of industry’s first inductance-to-digital converters from TI for linear position sensing without the use of any expensive rare-earth magnets. Linear position sensing determines the position of a target that moves laterally across an inductive sensor that is generating a magnetic field. An inductance-to-digital converter (LDC): like the LDC1000 or LDC1101: senses inductance changes of an inductor that comes into proximity with a conductive target: such as a piece of metal. The LDC measures this inductance shift to provide information about the position of a conductive target over a sensor coil. The inductance shift is caused by eddy currents generated in the target due to the magnetic field of the sensor. These eddy currents generate a secondary magnetic field that opposes the sensor field: causing a shift in the observed inductance.
Download the bill of materials for TIDA-00460 | Download |
Title | Updated | Type | Size (KB) | |
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TIDA-00460 Gerber | 19 Jun 2015 | ZIP | 367 | |
TIDA-00460 Assembly Drawing | 19 Jun 2015 | 189 | ||
TIDA-00460 CAD Files | 19 Jun 2015 | ZIP | 3417 | |
TIDA-00460 PCB | 19 Jun 2015 | 1097 | ||
TIDA-00460 BOM | 19 Jun 2015 | 192 | ||
TIDA-00460 Schematic | 19 Jun 2015 | 618 |