John L Moe

Title: Innovations of John L Moe in Heater Calibration Technology

Introduction

John L Moe is an accomplished inventor based in Winona, MN (US). He has made significant contributions to the field of heater calibration technology. With a total of 3 patents to his name, Moe has developed innovative methods that enhance the efficiency and accuracy of heating systems.

Latest Patents

One of his latest patents is a method and apparatus for calibration and controlling multiple heaters. This invention utilizes a microcomputer and a multiplexer to calibrate and control multiple heaters. The system sequentially samples the heaters and calculates resistance from voltage and current measurements. The operator inputs a temperature for the calculated resistance to establish a calibrated resistance value. During operation, the computer energizes and samples each heater to calculate its resistance. The calculated resistance is then divided by the calibrated resistance to determine a resistance ratio. A look-up table is stored in the computer, containing resistance ratios for corresponding temperatures. The computer compares the calculated ratio to that of the look-up table to determine actual heater temperatures. Based on these temperatures, the computer controls the energization of the heaters until the set points are achieved. This innovative approach can utilize negative temperature coefficient and positive temperature coefficient transistors and semiconductors.

Career Highlights

John L Moe is currently employed at Watlow Winona, Inc., where he continues to develop and refine his inventions. His work has significantly impacted the efficiency of heating systems in various applications.

Collaborations

Moe collaborates with his coworker, James R Datta, to further enhance their projects and innovations in the field of heater technology.

Conclusion

John L Moe's contributions to heater calibration technology demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of the complexities involved in heating systems, making him a notable figure in the field.