WEBENCH® Inductive Sensing Designer

Design your sensor coil and start your system design in seconds

WEBENCH® Inductive Sensing Designer supports TI’s ground-breaking family of inductance-to-digital converter (LDC) products. LDCs use coils and springs as inductive sensors to deliver higher resolution, increased reliability, and greater flexibility than existing sensing solutions at a lower system cost.

The tool provides system designers with an easy way to design a sensor based on their specific application requirements, configure the LDC based on the sensor coil’s characteristics, and export a layout file to their preferred CAD software. This makes incorporating the layout of the sensor coil into the overall system design much easier. 

Enter your design parameters in the LDC panel to get started now.

  • SELECT the appropriate LDC configuration and sensing coil design based on your needs
    • Use the Visualizer to see tradeoffs for resolution, size, number of PCB layers, and distance
  • CREATE a design including the PCB coil in seconds
  • ANALYZE your design's behavior for resolution, inductance, and impedance right in the tool
  • EXPORT your optimized PCB coil design directly into your CAD program
 

Enter your design parameters in the LDC panel to get started now.


Step by Step:

Design your coil

Input your design requirements into the tool to obtain a list of PCB coil solutions tailored to your resolution requirements at a pecified distance. These coil solutions have different diameters resulting in varying inductance values, thus making it possible to achieve a wide range of resolutions for the selected coil solution. All the necessary parameters to choose the appropriate coil are listed in the solutions table.

Advanced Charting on the left provides a way to visualize the trade-offs between these solutions. For example, when X axis represents Resolution @ Distance, Y axis represents Footprint of coil and Bubble size represents Number of layers of PCB coil, it is apparent that as resolution requirements get more stringent, the solution footprint would increase, (top left corner of the chart) and vice versa. Its also clear that a solution with 4 layers (larger bubble size) uses a significantly smaller footprint to achieve the same resolution as a 2-layer solution -- a 4-layer solution has 4 PCB inductor coils in series while a 2-layer solution has only 2 coils in series.

  Design your coil

 

Create your coil

Create the PCB coil design by clicking the "open design" button corresponding to your selected coil solution. The design includes a bill of materials, a list of parameters, charts to help you analyze the solution, PCB coil image, and finally the ability to export the PCB coil to your CAD tool of choice.

  Create your coil

 

Analyze your coil

Analyze the coil solution by interpreting the inductance vs distance, resolution versus distance, and Rp (impedance) vs distance graphs. Analysis provides an understanding of how the inductance and impedance of the coil vary as the distance changes between the target metal and the coil itself. It also provides an estimate of resolution of measurement in microns that you could expect at a given distance.

  Analyze your coil

 

Visualize your coil

Visualize all of the layers of the PCB coil before exporting the coil to your CAD tool.

  Visualize your coil

 

Export your coil design

Export the coil into one of 5 popular CAD tools shown here and you're ready to generate your gerber files.

  Export your coil design