David T Hahn

Title: Innovator Spotlight: David T. Hahn, Pioneer in Coriolis Mass Flow Measurement

Introduction: David T. Hahn is a renowned inventor based in Longmont, Colorado, recognized for his contributions to the field of mass flow measurement technology. With a total of eight patents to his name, Hahn has made significant advancements that enhance the accuracy and reliability of Coriolis mass flow meters.

Latest Patents: Among David T. Hahn’s latest innovations are two remarkable patents related to signal processing and field proving methods for Coriolis mass flow meters. The first patent focuses on a signal processing apparatus and method designed to measure the mass flow rate of a fluid flowing along the surface of a Coriolis mass flow meter. This apparatus incorporates several key components, including a driver to create prescribed vibrations in the surface, a motion sensor to measure the surface's motion, response characteristic determination circuitry, and flow rate calculation circuitry to assess the measured mass flow rate of the fluid based on the motion and response characteristic. Notably, this field-provable Coriolis mass flow meter enables performance monitoring without needing an external proving device.

The second patent addresses crucial issues related to zero drift effects experienced in Coriolis mass flow meters. It reveals innovative apparatus and methods for discerning the true zero measurement separately from errors caused by varying boundary conditions and fluid parameters. This invention includes a force driver to vibrate the flow conduit, a sensor for detecting the resulting motion, and signal processing circuitry that isolates the Coriolis mode component from the boundary condition mode component, producing an output signal that accurately represents the mass flow rate.

Career Highlights: Throughout his career, David T. Hahn has worked with several companies notable for their engineering and measurement technologies, including Direct Measurement Corporation. His work has considerably shaped the understanding and capabilities of mass flow measurement systems.

Collaborations: During his journey as an inventor, Hahn has had the privilege of collaborating with esteemed professionals, including Donald Reed Cage and Steven W. Campbell. Their combined expertise and teamwork have contributed to the development of advanced measurement technologies that have wide applications in various industries.

Conclusion: David T. Hahn’s innovative spirit and technical expertise have led to significant advancements in Coriolis mass flow measurement technology. His patents not only address critical challenges in the field but also pave the way for enhanced measurement solutions. As an inventor dedicated to progress, Hahn continues to impact the industry, showcasing the importance of innovation in driving technological advancement.