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Inductive Linear Position Sensing Booster Pack Reference Design TIDA-00460 (ACTIVE)
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
- Inductive Linear Position Sensing Booster Pack Design Guide (Rev. A)
(PDF 1952 KB)
29 Jun 2015
Description
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.
Features
- Inductive sensing technology
- Non-contact detection and measurement
- Increased flexibility and performance without requiring analog trimming techniques
- Remote sensor placement
- Insensitive to environmental contaminations
- More reliable operation sensor self-diagnostic
- High resolution and accurate
- Replace legacy analog only solutions
- Low power, low cost and low footprint solution
See the Important Notice and Disclaimer covering reference designs and other TI resources.
