Peisen Huang

Title: Peisen Huang: Innovator in Geometric Error Measurement Systems

Introduction

Peisen Huang is a notable inventor based in Ann Arbor, MI (US). He has made significant contributions to the field of geometric error measurement systems, holding a total of 2 patents. His work focuses on developing innovative methods that enhance measurement accuracy and efficiency.

Latest Patents

One of Peisen Huang's latest patents is a multi-degree-of-freedom geometric error measurement system. This system is designed to provide high resolution, compact size, and low cost for simultaneously measuring four geometric errors: horizontal straightness, vertical straightness, pitch, and yaw. The pitch and yaw error measurements utilize a new method of angle measurement based on the internal reflection effect at an air/glass boundary. This method employs a differential detection scheme to significantly reduce the inherent non-linearity of reflectance versus the angle of incidence in internal reflection. By minimizing non-linearity, the displacement of the angle of incidence can be accurately determined through reflectance measurement. The resolution and measurement range are influenced by the initial angle of incidence, the polarization state of light, and the number of reflections. Compared to traditional interferometers and autocollimators, this method offers a simpler sensor design suitable for a wide range of applications, from extensive measurement ranges to extremely high resolutions. The apparatus includes a beamsplitter, a pair of critical angle prisms, and a pair of photodiodes, with each photodiode measuring changes in reflectance to produce angle measurements of the beam incident to the beamsplitter. The horizontal and vertical straightness measurements are based on a laser alignment technique that utilizes a reference beam input through a single-mode fiber beam delivery system, significantly improving the pointing stability of the beam.

Another patent by Peisen Huang involves a method and apparatus for angle measurement based on the internal reflection effect at an air/glass boundary. Similar to his previous patent, this method also employs a differential detection scheme to reduce non-linearity in reflectance measurements. The resolution and measurement range are determined by the initial angle of incidence, the polarization state of light, and the number of reflections. This method's simplicity in sensor design makes it advantageous for various applications requiring precise angle measurements.

Career Highlights

Peisen Huang has established himself as a leading figure in the field of geometric error measurement. His innovative approaches have garnered attention and recognition within the industry. His work