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Inductive Linear Position Sensing Booster Pack Reference Design
TIDA-00460
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
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.
