A Seam Tracking Modulated Infrared Optical Sensor for Use in Welding

Abstract

This article describes a weld seam tracking sensor which has a type of pulse modulated infrared beam as its signal light source. Going through signal reception filters and 'adaptive elimination of noise' processing, it is possible to effectively overcome interference from electric arc light. Making use of the light source pulse driven characteristics, the instantaneous signal power is greatly added to, improving the adaptation of optical sensors to the surfaces of pieces of work. The sensors' structure is simple. Their volume is small. Their sensitivity is high. And, they are capable of realizing, at the same time, automatic tracking of weld seams in the two horizontal and altitude directions. It is capable of precision tracking in both submerged arc and open arc automatic welding.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 03, 1991
Accession Number
ADA254103

Entities

People

  • Bingyi Yan
  • Fangdian He
  • Minsheng Wu
  • Wuzhu Chen
  • Yong Su

Organizations

  • National Air and Space Intelligence Center

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Automatic Tracking
  • Detectors
  • Direct Current
  • Electric Arcs
  • Electric Current
  • Emission
  • Light Sources
  • Modulation
  • Optical Detectors
  • Pulse Modulation
  • Radiation
  • Schematic Diagrams
  • Semiconductor Devices
  • Signal Lights
  • Signal Processing
  • Voltage
  • Waveforms

Readers

  • Metallurgy
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Sensor Fusion and Tracking Systems.