The holo-diagram: a practical device for making and evaluating holograms.

Area of Science:

• Optical Engineering
• Metrology
• Mechanical Engineering

Background:

• Measuring small deformations in large machine parts, such as machine tool slideways, is crucial for engineering applications.
• Hologram interferometry is a promising technique for deformation measurement but lacks general methods for large objects.
• Existing methods for hologram creation and evaluation are insufficient for large-scale industrial components.

Purpose of the Study:

• To develop a general method for creating and evaluating holograms of large machine parts.
• To introduce a novel technique, the holo-diagram, to simplify hologram interferometry.
• To enable accurate measurement of deformation, dimensions, and vibration in large machine components.

Main Methods:

• Development of a specialized diagram, termed the holo-diagram, for hologram recording.
• Application of the holo-diagram for both ordinary and Lippman holograms.
• Utilizing interference holography for precise metrological evaluations.

Main Results:

• The holo-diagram method simplifies the creation of holograms for large objects.
• The technique significantly streamlines the evaluation of interference holograms.
• Accurate measurements of dimension, deformation, and vibration are achievable with this method.

Conclusions:

• The holo-diagram provides a versatile and effective solution for hologram interferometry of large machine parts.
• This method enhances the practical application of interferometry in industrial settings.
• The work has also stimulated new concepts for interferometer design.