Steven James Spencer

Title: Innovations of Steven James Spencer

Introduction

Steven James Spencer is an accomplished inventor based in Albuquerque, NM (US). He has made significant contributions to the field of technology, particularly in control systems and methods for autonomous operations. With a total of six patents to his name, Spencer continues to push the boundaries of innovation.

Latest Patents

One of Spencer's latest patents is focused on control systems and methods to enable autonomous drilling. This innovative system autonomously controls a rotary or percussive drilling process as it transitions through multiple materials with varying dynamics. The method determines the drilling medium based on real-time measurements and comparisons to prior drilling data. It identifies the material type, drilling region, and approximately optimal setpoint based on data from at least one operating condition. The controller uses these setpoints to execute an optimal search to maximize performance by minimizing mechanical specific energy. Additionally, near-bit depth-of-cut estimations are performed using a machine learning prediction deployed in an embedded processor to provide high-speed rate of penetration (ROP) estimates. The sensing capability is coupled with a near-bit clutching mechanism to support drilling dysfunction mitigation.

Another notable patent is for active tether control for a tethered multirotor. This control system and method tension an active tether for a multirotor unmanned aerial system. The system includes a tensioning pulley and a tensioning spring, which generates a variable tension force on the active tether. A transducer is connected adjacent to the tensioning spring to sense the linear displacement position of the tensioning pulley and transmit a position signal to a controller. The servomotor, in communication with the controller, receives a control signal in response to the position signal. This allows the servomotor to drive a cable reel, which maintains a predetermined tension on the tensioning spring.

Career Highlights

Spencer's career is marked by his innovative work at National Technology & Engineering Solutions of Sandia, LLC. His expertise in control systems has positioned him as a leader in the field, contributing to advancements in autonomous technologies.

Collaborations

Throughout his career, Spencer has collaborated with talented individuals such as Stephen Buerger and Anirban Mazumdar. These collaborations have further enhanced his innovative capabilities and contributed to the success of his projects.

Conclusion

Steven James Spencer is a notable inventor whose work in autonomous drilling and multirotor systems showcases his commitment to innovation.