Chun-Foong Cheah

Title: **Chun-Foong Cheah: Innovator in Inclinometer Technology**

Introduction

Chun-Foong Cheah is a notable inventor based in Foster City, California, recognized for his contributions to measurement technology. His work focuses on enhancing the performance and accuracy of inclinometers, devices used to measure angles of slope or tilt.

Latest Patents

Cheah holds a patent for his innovative work on "Inclinometer Sensing Circuitry and Operation." This patent details measurement circuitry designed for a biaxial inclinometer that utilizes electrolytic fluid. The technology integrates a Schmitt trigger that measures the resistance of each leg of the inclinometer by analyzing the frequency output of the Schmitt trigger circuit, facilitating precise measurements. The design incorporates analog multiplexers functioning as solid-state switches, all managed by a microprocessor. To further enhance measurement accuracy, the legs are periodically reversed in polarity to minimize net DC current during operations. Additionally, the design introduces a low clamp resistance placed parallel with each leg not under measurement, effectively compensating for leakage current.

Career Highlights

Currently, Chun-Foong Cheah serves at Precision Navigation, Inc., where he leverages his expertise to drive innovation in navigation and measurement technologies. His contributions help the company maintain its competitive edge in precision instruments.

Collaborations

While specific collaborations with other inventors or institutions have not been detailed, Cheah's work at Precision Navigation, Inc. signifies a commitment to advancing technology in partnership with a leading firm in the field. His innovative solutions are likely to have collaborative impacts within the industry.

Conclusion

Chun-Foong Cheah exemplifies the spirit of innovation in engineering and measurement technology through his singular patent. His work in inclinometer systems showcases the intersection of electronics and precision measurement, positioning him as a significant figure in the field of technological advancements.