---
publication_id: "OT-2026-000003233"
title: "Method and apparatus for measuring dimensions of objects on a conveyor"
published_at: "2026-09-15T19:53:23.638688Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000003233"
categories:
  - "sensors-controls-machine-vision/position-and-presence-sensing"
keywords:
  - "g01b11/00"
  - "g01b11/00"
  - "g01b11/04"
  - "g01b11/04"
---

# Method and apparatus for measuring dimensions of objects on a conveyor

## Abstract

A method and apparatus for measuring the length, width, and height of rectangular solid objects moving on a conveyor. The apparatus includes a light curtain, two laser triangulation range finders, and a pulse tachometer mounted on a frame around a conveyor. As an object is conveyed through the frame, measurements from each of the sensors are correlated by a digital computer to estimate the length, width and height of the object. The method and apparatus does not require a break in the surface of the conveyor, and is insensitive to object placement and orientation on the conveyor.

## 1. Drawings

[0001] Sheet 1.

[0002] Sheet 2.

[0003] Sheet 3.

[0004] Sheet 4.

[0005] Sheet 5.

[0006] Sheet 6.

[0007] Sheet 7.

[0008] Sheet 8.

[0009] Sheet 9.

[0010] Sheet 10.