CApacitive Position Sensor for ActuaTION in extreme environments, Phase I (CAPSATION)

CAPSATION presents as the first sensor/electronics package viable for extreme environments to provide positional feedback for actuation and control systems. This potentiometric differential variable capacitive position sensor uses a novel noncontact internal architecture to provide more accuracy than traditional variable capacitors, with less mechanical wear and higher response time than resistive position sensors. Paired with GRC harsh environment silicon-carbide electronics, it is less susceptible to noise than transducers and requires far less computational support. As a first step in maturation, a characteristic proof of concept for a linear topography will demonstrate the ability to observe changes in voltage relative to changes in position of a coupling conductor moved across a set of static plates. Testing and analysis will be performed to examine key parameters for optimization including sensor topography, materials, and circuit layout.

This proposal supports advanced capabilities in Lunar Fission Surface Power (FSP) technology by providing improved accuracy and precision in monitoring and control systems of nuclear reactors with the ability to place a complete sensor and electronics package closer to the core than current technology allows, resulting in improved safety with more efficient energy production. Likewise, it inherently supports nuclear propulsion efforts. In addition, it provides a critical component for mission success under High-Operating-Temperature Technology (HOTTech) development by supplying positional feedback necessary for precision and accuracy of a Venusian position-motor system that can provide functionalities such as control of a robotic arm for sample examination or deployment of a seismometer, as well as a pointing system for sensors.

This is early/mid-stage (TRL 3) — the most realistic path in is NASA SBIR/STTR, which funds small businesses and research institutions to develop technology aligned with NASA's needs (equity-free, phased funding). Check whether a current SBIR/STTR solicitation topic overlaps with this project's technology area, or contact the project directly (above) to ask.

None of these are guaranteed paths for this specific project — TechPort itself doesn't have an "apply" button. Reaching out to the contact(s) above with a specific question is usually the fastest way to find out what's actually open.