Accession Number : AD0771104

Title :   Investigation of a Laser Operated Device for Inspecting Dimensions of Small In-Line Items.

Descriptive Note : Master's thesis,

Corporate Author : ARMY MATERIEL COMMAND TEXARKANA TEX INTERN TRAINING CENTER

Personal Author(s) : Lemons,Donald G.

Report Date : MAY 1973

Pagination or Media Count : 52

Abstract : Since recent advancements in production line technology have surpassed present inspection and control techniques, a need has developed for a highly reliable inspection systems capable of performing 1000 inspections per minute or greater. This research report presents such a system. The system operates by emitting a laser beam across the path of items on a production line. As the items pass through the beam a shadow is cast on a photo-transistor array. This array, in conjunction with digital circuitry, detects and analyzes the shadow resulting in a pulsed output which signifies if the measured attribute of the product is within the specified tolerances. (Author)

Descriptors :   *Inspection, *Nondestructive testing, Lasers, Automatic, Measurement, Quality control, Measuring instruments, Laser beams, Theses

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE