David D Akers

Title: David D Akers: Innovator in Precision Measurement Technology

Introduction

David D Akers is a notable inventor based in Los Gatos, CA (US). He has made significant contributions to the field of precision measurement technology, holding a total of 3 patents. His work has focused on developing innovative solutions that enhance measurement accuracy and efficiency.

Latest Patents

Among his latest patents is a groundbreaking design for roof equipment mounting brackets. Additionally, he has developed a femtoammeter that resists noise-induced reversed bias of the ammeter amplifier. This invention avoids long time constant recovery while achieving unusually high measurement accuracy. The femtoammeter features a feedback loop equipped with paired opposingly faced log diodes in parallel across the feedback circuit. This design accommodates transients of negative or positive bias without causing the amplifier to reverse polarity, thus preventing unacceptably long time constant recovery.

Conventional temperature compensation, which is typically not feasible with the parallel reversed diode configuration, is achieved by heat sinking the ammeter components. This includes a log diode temperature sensor for the heat-sinked components, which controls the heat sink's operating temperature using a thermoelectric cooler. The temperature sensing log diodes output to a computer lookup table and also to a bridge circuit that operates the thermoelectric cooler. This cooler is polarized to either heat or cool the heat sink, thermally adjusting the ammeter to its optimum operating temperature. Automated bootstrap calibration is also disclosed, utilizing reed switching to prevent stray currents, resulting in accuracy that includes previously unattainable results.

Career Highlights

David D Akers has had a distinguished career at General Electric Company, where he has been instrumental in advancing measurement technologies. His innovative approach has led to significant improvements in the accuracy and reliability of measurement devices.

Collaborations

Throughout his career, David has collaborated with esteemed colleagues such as William D Hill and Ulric E Dennis. These collaborations have further enriched his work and contributed to the development of cutting-edge technologies.

Conclusion

David D Akers is a prominent figure in the field of precision measurement technology, with a focus on innovations that enhance measurement accuracy. His contributions, particularly in the development of the femtoammeter, demonstrate his commitment to advancing technology in meaningful ways.