Carl Rhoads

Title: Innovations by Carl Rhoads in Underwater Concrete Testing

Introduction

Carl Rhoads is an accomplished inventor based in Ventura, CA. He has made significant contributions to the field of underwater concrete testing, holding a total of 3 patents. His innovative approaches have enhanced the accuracy and reliability of assessing concrete quality in challenging environments.

Latest Patents

One of Rhoads' latest patents is an ultrasonic test system designed to determine the quality of concrete underwater. This system effectively mitigates inaccuracies caused by electromagnetic interference from the ultrasonic generator. The ultrasonic generator applies pulses to the concrete, while the ultrasonic detector captures these pulses and produces corresponding signals. The signal processing circuitry processes these signals to determine the transit time of the ultrasonic pulses through the material. To ensure accurate measurements, the circuitry is disabled for a predetermined time after each pulse is applied, preventing noise from affecting the results.

Another notable invention is the rebound hammer, a measuring apparatus that detects defects in underwater concrete structures by measuring their compressive strength. This device features a plunger that is pressed against the structure, forcing it into the rebound hammer's housing, which releases a spring-driven mass. A resistive film strip in contact with the mass detects its maximum rebound and provides an electrical signal indicative of this rebound. The data acquisition and processing circuit, which includes a microprocessor, processes and stores these signals, ultimately calculating the compressive strength of the underwater concrete structure under test.

Career Highlights

Carl Rhoads works for the United States Navy, where he applies his expertise in developing innovative solutions for concrete testing. His work has been instrumental in advancing the methods used to assess the integrity of underwater structures, ensuring safety and reliability in various applications.

Collaborations

Rhoads has collaborated with notable coworkers, including Anthony Smith and Dan Goff. Their combined efforts have contributed to the successful development and implementation of advanced testing technologies.

Conclusion

Carl Rhoads is a pioneering inventor whose work in underwater concrete testing has led to significant advancements in the field. His innovative patents reflect his commitment to improving the quality and safety of concrete structures.