Ou Zhang

Title: Ou Zhang: Advancing Construction Measurement with Laser Technology

Introduction

Ou Zhang is an inventor based in Changzhou, China, whose patent work includes equipment for construction measurement and inspection. Zhang is associated with Changzhou Huada Kejie Opto-Electro Instrument Co., Ltd. His listed portfolio includes 2 patents.

Latest Patents

One of Zhang’s listed inventions is a construction surface flatness detector, described in the supplied patent information alongside the title “Laser Surveying System for Setting Out.” The detector uses a housing mounted on a base, with mechanisms for adjusting inclination, calibrating levelness, changing height, and rotating the housing.

A pair of laser line projecting units is positioned at opposite ends of the housing. The units project parallel laser lines, while their laser sectors form an adjustable angle. Their intersecting lines are aligned with the horizontal plane of the base and can be projected onto a construction surface.

The design aims to make surface irregularities easier to identify by observing how the projected laser lines diverge or intersect. Selecting a specific angle between the laser sectors can also help users determine concave or convex deviations, supporting faster and more direct flatness checks.

Career Highlights

Zhang’s disclosed patent work focuses on practical optical and measurement equipment for construction applications. The detector combines laser projection with adjustable positioning and calibration features to support on-site assessment of surface flatness.

Collaborations

Zhang is associated with Changzhou Huada Kejie Opto-Electro Instrument Co., Ltd. The supplied information also names Weiping Zhu and Kai Fei as coworkers; it does not specify their roles in the patent or project.

Conclusion

Ou Zhang’s patent work reflects an application of laser-based measurement to construction inspection, with a detector designed to make surface flatness assessment more intuitive and efficient.