Luna T-Ray 5000 LSG500n handheld terahertz line scan gauge
Luna / Terahertz Gauging and Imaging / Sensors and Gauges
LSG500n

T-Ray 5000 LSG500n Line Scan Gauge Handheld Terahertz Scanner

Handheld terahertz line scan gauge for the T-Ray 5000 that scans a 50 or 75 mm line at up to 8 sweeps per second.

Polarization Extinction Ratio
> 20:1
Sweep Rate
Up to 8 per second
Minimum Layer Thickness
50 microns
Scan Line Length
50 or 75mm
Datasheet

Overview

The Luna LSG500n Line Scan Gauge (LSG) is a handheld accessory for the T-Ray® 5000 terahertz system. It scans a line 50 or 75 mm long at high speed. The handheld tool shows the line scan image on its own screen, and dedicated software can analyze the image for specific applications.

The current software can measure layer thickness, detect voids, and align body panels by measuring the vertical and horizontal offset between them. The live display lets the operator align the tool in real time and observe and measure surface and sub-surface features.

The gauge scans at up to 8 sweeps per second, and the rate can be lowered for higher resolution. It ships with a 75 mm (3") scan length lens. An optional accessories kit adds a 2" lens, standoffs and a calibration plate.

The manufacturer lists the LSG500n as discontinued.

Key Features

  • Fiber coupled to allow movement (up to 30m)
  • Broadband THz measurement
  • One-sided reflection data collection
  • Use with T-Ray 5000 Terahertz Control Unit (TCU)
  • High signal to noise ratio
  • Ergonomic trigger to initiate measurement
  • Low noise to enable rapid data collection
  • Two lenses provide different scan widths
  • Pointing lasers to guide tool alignment
  • Live display for real time alignment and observation of surface and sub-surface features

Specifications

Performance
Polarization Extinction Ratio > 20:1
Horizontal
Sweep Rate Up to 8 per second
Adjustable to allow for higher resolution
Minimum Layer Thickness 50 microns
Scan Line Length 50 or 75mm
Physical
Size (W x H x D) 25 x 15 x 15 cm
Weight 1 kg
Typical Configuration
Controller Terahertz Controller
Umbilical 5, 10, or 30 m
Software T-Ray® Basic and T-Gauge®, and LSG Software

Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.

Applications

  • Thickness monitoring
  • Density measurement
  • Non-destructive test (NDT) with terahertz
  • Terahertz line scan imaging of layer structure, layer thickness, panel offset and separation
  • Void detection, subsurface defects or inclusions
  • Step and gap measurement between coated panels in aerospace and automotive final assembly
  • Art conservation

Included

  • 75 mm scan length lens (75 mm standoff)
  • Cushioned feet for ease of alignment

Documents & Resources