Specialised Photometric Equipment

We offer a range of specialised and customised photometric equipment for various applications.

 

Application Equipment / Bench
Luminance measurement of tunnel entrance/exit TEP-1.0 and TEP-2.0
BRDF/BTDF measurement BiRT series
Measurement of photobiological safety IDR300-PSL
Measurement of spectral content of lamps DMc150F-U
Measurement of solar irradiance Envirobox
Talk With an Expert for a customised solution
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TEP Tunnel Entrance Photometers

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BiRT BRDF/BTDF Function Measurement Systems

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IDR300-PSL for Photobiological Testing of Lamps (IEC 62471)

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DMc150F-U Double Monochromator for Spectral Content of Lamps

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Solar Radiation Measurement

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PVE300 Photovoltaic EQE (IPCE) and IQE solution

TEP Tunnel Entrance Photometers

The TEP-2.0 Tunnel Entrance Photometer is a measurement system essential to the energy efficient lighting of tunnel portals (entrances and exits).

It is installed in front of the portal, normally at one safe stopping sight distance and produces an output current proportional to the luminance in the central field-of-view around the tunnel portal. This signal can be used to switch banks of luminaires on or off, thereby keeping the lighting of the tunnel at an optimum compared with the surrounding luminance and saving energy. 2 versions exist: 1 single range and 1 dual range

TEP-1.0 TEP-2.0
Dynamic 0 to 10000 cd/m2 0 to 10000 cd/m2
Low Range N/A 200 to 500 cd/m2
High Range 1000 to 10000 cd/m2 1000 to 10000 cd/m2
Housing IP 65 IP 65

 

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TEP Datasheet

BiRT BRDF/BTDF Function Measurement Systems

The BiRT family is an advanced robot-based BRDF/BDTF measurement solution. The system features:

  • Light-tight enclosure with operator safety lockout;
  • Collimated input beam with adjustable beam size;
  • 6-axis robot for sample positioning and rotation in 3 axes;
  • Precision slew ring for detector motion;
  • Software control and coordination of all measurement functions.
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BiRT BRDF/BTDF Datasheet

IDR300-PSL for Photobiological Testing of Lamps (IEC 62471)

Throughout the world, a new framework is in place for the evaluation of the optical radiation safety of lamps and lamp systems covering non-laser electrically-powered sources emitting light in the spectral region 200-3000nm. Whilst standards vary between countries, they stem from the same source and as such show a high degree of commonality to the international standard IEC62471:2006.

Faced with a complex series of measurements of spectral irradiance and spectral radiance over wide spectral range, and in response to the recommended measurement instrumentation of IEC62471 (notably the use of a double monochromator to provide excellent stray light rejection and high spectral resolution wide spectral range), Bentham has configured the IDR300-PSL measurement system.

Incorporating products from the long-established Bentham spectroradiometer and accessories portfolio, plus the introduction of new products designed to meet the specific requirements of these measurements, the IDR300-PSL system provides an automated measurement solution with full software guidance, calculation and classification.
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IDR300-PSL Datasheets

DMc150F-U for Spectral Content of Lamps

The DMc150F-U Double Monochromator can be used for measurement of the spectral content of lamps to cover the UV and visible range. Typical applications include:

  1. Measurement of k1, k2, kUV and kred of lamps according to ECE-R37, ECE-R113, etc.;
  2. Chromaticity coordinates (x, y) and (u’, v’);
  3. Correlated colour temperature (CCT);
  4. Distribution temperature;
  5. Special colour rendering indices; General colour rendering index (Ra);
  6. Colour rendering group; Colour appearance group;
  7. Dominant wavelength; Excitation purity; Colorimetric purity;
  8. Peak wavelength; Weighted average (centroid) wavelength; FWHM;
  9. >% Spectral energy statistics.

 

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DMc150F-U Datasheet

Solar Radiation Measurement

1. Solar Irradiance Monitoring

A knowledge of the solar irradiance may be a valuable manner of research-based monitoring of the performance of an operational solar installation.

Since the Antarctic ozone hole was announced in 1985 (Farman et al.), Bentham has been a driving force in spectroradiometer developments for the measurement of solar irradiance.

Envirobox System
Field-based measurements with the laboratory accuracy are achievable with the Bentham Envirobox system.

The system is based around either a compact 300mm focal length DMc150 (280-600/ 300-1100nm) or a 600mm focal length DTMc300 (280-2500nm) double monochromator, with photomultiplier detection, detection electronics and a choice of input optics.

Housed in the rugged, temperature controlled Envirobox, the spectroradiometer may be operated unattended, recording spectra up to every five minutes, over extended periods.

Input Optics
A choice of input optics are available to measure the following quantities:

Global irradiance: with an environmentally-sealed cosine diffuser and quartz fibre bundle.

Diffuse irradiance: with the addition of an automated rotating shadow band to the above.

Direct normal irradiance: with a solar tracker mounted direct solar accessory, measuring to view the solar disk directly.

 

2. Accurate Spectroradiometry

Over the years, our systems have been developed with input from the solar community, resulting in high performance spectroradiometers compliant with the WMO type S-2 instrument requirements.

solar-150H
solar-monitor-150H
solar-graph
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Solar Radiation Measurement Datasheet

PVE300 Photovoltaic EQE (IPCE) and IQE

The PVE300 system is an essential tool in photovoltaic research and production line quality processes, employed in the accurate determination of solar cell spectral response/ EQE (IPCE) and IQE.

The PVE300 features full compatibility with all types of photovoltaic devices, materials and architectures, including c:Si, mc:Si, a:Si, µ:Si, CdTe, CIGS, CIS, Ge, dye-sensitised, organic/polymer, tandem, multi-junction (2-, 3-, 4-junction and more), quantum well, quantum dots, chalcogenides and perovskites.

pve300-350H
pve300-system-350H
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PVE300 Datasheet

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