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[Column] Measuring Glass Thickness with a Laser Displacement Meter (Part 1: Theoretical Edition)

駿河精機

I will explain a method for measuring the thickness of glass using a laser displacement gauge that employs a diffuse reflection detection method. Since this discussion will be somewhat lengthy, I will present it in three parts. In this first part, I will focus on the theory of glass thickness measurement. Table of Contents 1. Introduction 2. Theoretical details of glass thickness measurement methods - A. Upper and lower limits of measurable thickness - B. Appropriate incident angle 3. Can both diffuse reflection and specular reflection be used?! Suruga Seiki's H810 series laser displacement gauge