Portable handheld directional-hemispherical infrared reflectometer, developed with NAVAIR/NRL/NIST, 0.9-12 micron, two incidence angles.
410-DHR Reflectometer
Portable handheld directional-hemispherical infrared reflectometer, developed with NAVAIR/NRL/NIST, 0.9-12 micron, two incidence angles.
Description
The 410-DHR measures integrated surface reflectance at two angles of incidence (20 and 60 degrees) across six wavelength bands spanning 0.9-12 micron. It is portable, performs measurements in 10 seconds with touchscreen-guided calibration, and can be used on curved or large targets without special fixtures. Applications include infrared signature management, thermal-camera calibration, low-observable coatings characterization, emissivity measurement, and radiative heat transfer analysis.
Specifications
| Measured quantity | Directional-hemispherical reflectance (DHR) |
|---|---|
| Output | Absolute reflectance (0-1) plus calculated in-band emissivity |
| Spectral bands | 0.9-1.1, 1.9-2.6, 3.0-4.0, 3.0-5.0, 4.0-5.0, 8.0-12.0 micron |
| Incidence angles | 20 degrees and 60 degrees |
| Calibration coupon | Specular gold |
| Accuracy | +/- 0.03 |
| Repeatability | +/- 0.005 |
| Beam spot size | 0.50 inch |
| Measurement time | 10 sec |
| Sample size (flat) | >= 0.5-inch dia |
| Sample size (curved) | 6-inch convex / 12-inch concave |
| Battery run time | 2 hr |
| Weight | 4.7 lb |
| Dimensions | 11.54 in H x 9.04 in L x 3.27 in W |
| Interface | LCD touchscreen 1/4 VGA + trigger |