Goniophotometer

CIE B-β and C-γ Measurement Methods

GO-2000 is a highly automated luminaire light distribution performance test system, mainly used for all kinds of indoor lamps, road lamps and floodlights ( add B-β test accessories) light distribution performance test, total luminous flux test and electrical parameters (voltage, current, power, power factor) measurement.

Features

• CIE B-β and C-γ Measurement Methods
  By means of luminaire and turntable rotation, CIE standard B-β and CIE C-γ measurement methods can be realized at the same time to measure the luminous intensity distribution in all directions of the light source.
• High Accuracy & Wide Dynamic Range
  The matching accuracy of relative spectral sensitivity of the photometer used in the system can reach the highest Class L, and the matching error is less than 1.5%.And adopts TC-cooling technology, its photometer measurement range: 0.0001lx ~ 200klx.
• High Angle Accuracy & High Stability
  Combined with the international advanced servo motor and absolute Angle encoder to achieve closed-loop control of the system, and then through the EVERFINE design and custom transmission, the rotation angle of the turntable is more accurate and stable.
• Automation Test & Powerful Software
  GO-2000 is a highly automated light distribution performance test system for lamps. The whole system is composed of powerful software to automatically complete various test tasks, and the test parameters refer to various international standards.
• Cost-Performance Solution with Small Space Demand
  The overall required space is small, the decoration cost is low, the light fixing is convenient, and the comprehensive cost performance is high.

Technical Specifications

Model	GO-2000
Vertical- and Horizontal-Axis Rotation	Vertical rotation: 0°–+360°; horizontal rotation: −180°–+180°
Photometer Head	Class L (f1′ < 1.5%) or Class A (f1′ < 3%)
Angular Accuracy	Up to 0.05°
Photometric Measurement Range	0.0001 lx–200 klx (autoranging)
Photometric Accuracy	Reference Grade
Maximum Vertical Distance from Rotation Center to Rail Mounting Surface	1000mm
Maximum Permissible Dimensions	1500 mm (W) × 2000 mm (H) (B-β configuration), or Ø2000 mm (C-γ configuration)
Spatial Chromaticity Distribution	Optional function Measures relative spectral power distribution, chromaticity coordinates, dominant wavelength, peak wavelength, color purity, correlated color temperature, color rendering index, and spatial chromaticity distribution. Dedicated software accurately calculates the mean chromaticity characteristics and spatial chromaticity non-uniformity of the light source under test.
Photometric Data File Formats	*.GOS    *.CIE    *.CEN    *IES    *.Tm14    *.CIB    *.LDT