Rafael Hernandez

Title: Rafael Hernandez: Innovator in Temperature Measurement Technology

Introduction

Rafael Hernandez is a notable inventor based in Jimenez, Mexico. He has made significant contributions to the field of temperature measurement technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and accuracy of temperature readings in various applications.

Latest Patents

Hernandez's latest patents include a multiplexed arrangement for connecting a plurality of transducers to a multiplexed circuit. This innovation allows for the selection of one of several vertically spaced resistance temperature devices (RTDs) in a fluid storage tank. The electronic multiplexer is designed to connect a specific RTD to the circuitry for reading its output value. This device is integrated with an intelligent field interface device (FID) that stores expected output value ranges. If a read value falls outside the expected range, the FID prompts the multiplexer to select an alternative RTD for accurate readings. This arrangement enables temperature readings at various levels within the tank, regardless of the fluid level.

Another significant patent by Hernandez is an apparatus for operating a motor-driven device while testing the state of a limit switch in series with the motor. This invention is particularly useful in the environment of a field interface device in a tank farm. During the operation of a high-power relay, a latched signal connects one side of the two-wire circuit to ground through low impedance. When testing the limit switch's state, the supply voltage is switched onto one side of the circuit, while the low side is grounded through high impedance. This setup allows for the detection of current presence or absence, providing a logical output to determine the limit switch's status.

Career Highlights

Hernandez is currently employed at Process Technologies, Inc., where he continues to innovate and develop new technologies. His work has had a significant impact on the industry, particularly in improving temperature measurement systems.

Collaborations

Throughout his career, Hernandez has collaborated with notable colleagues, including Marion L Moncrief, Jr. and Frank S Glass. These partnerships have contributed to the advancement of his inventions and the overall success of his projects.

Conclusion

Rafael Hernandez is a distinguished inventor whose work in temperature measurement technology has led to several important patents. His innovative solutions continue to enhance the efficiency and accuracy of temperature readings in various applications.