BTS2048-IR spectroradiometer with thermoelectrically cooled detector

TE cooled spectroradiometer with a wide dynamic range for CW and short-term measurement of the irradiance, spectrum, and peak wavelength. Accessories for other parameters.

Compact device. BiTec detector with TE cooled detector (512 pixels, 9 nm optical resolution, electronic shutter), and additional InGaAs diode. Optical bandwidth correction (CIE214). Filter wheel with shutter and OD-Filter. Input lens with diffusor window. Cosine field of view.

Spectral: 3E-4 W/(m²nm) to 1.6E4 W/(m²nm) @1600 nm. Responsivity from 950 nm to 2150 nm.

Diode array spectroradiometer for R&D applications and for the integration in testing systems.

Factory calibration. Traceable to international calibration standards

Spectral irradiance (W/(m² nm)), irradiance (W/m²), spectral radiant intensity (W/(sr nm)), radiant Intensity (W/sr), peak wavelength, center wavelength, centroid wavelength, etc.. Option integrating sphere: in addition spectral flux (W/nm). Option goniometer: in addition radiant intensity (W/sr)

Diffusor, cosine corrected field of view

4 positions (open, closed, OD1, OD2). Use for remote dark current measurement and dynamic range extension.

Parallel measurement with diode and array is possible, thereby an online correction of the spectral mismatch of the diode through a*(s_z(λ)) respectively F*(s_z(λ)).

Spectral irradiance

Spectral irradiance responsivity (950 – 2150) nm

* in this region the transition from sensor part 1 to sensor part 2 takes place. Uncertainty increases.

10 µs – 10 s    *11

(950 -2150) nm

9 nm

~2.3 nm/Pixel

512

cooled highly sensitive InGaAs chip with second order filter

16bit

± 1 nm

mathematical online band-pass correction is supported

completely linearized chip >99% *10

7 cts   *1

5000   *2

8 Magnitudes

Nine (9) measurement ranges with offset correction

Optional: (15 to 6E7) W/m²

responsivity range: (1050 – 2100) nm

Optional: Spectral responsivity with radiometric matching. Online correction of the radiometric matching through spectral measurement data (spectral missmatch factor correction).

32bit for device control,16bit for detector array control, 8bit for photodiode control

USB V2.0, Ethernet (LAN UDP protocol), RS232, RS485

Standard for 512 float array values via ethernet 5 ms

2x (0 – 25) VDC, 1x optocoupler isolated 5 V / 5 mA

2x open collector, max. 25 V, max. 500 mA

Trigger input incorporated (different options, rising/falling edge, delayed, etc.)

User software S-BTS2048
Optional software development kit S-SDK-BTS2048 for user software set-ups based on .dll‘s in C, C++,C# or in LabView.

With power supply: DC Input 5V (±10 %) at 3000 mA

Temperature stabilization chip: ≤ ± 0.25 °C

135 mm x 107 mm x 90 mm (Length x Width x Height)

1000g

Tripod and M6 screw threads

Front adapter UMPA-1.0-HL for use with integrating sphere port-frame UMPF-1.0-HL

Storage: (-10 to 50) °C

Operation: (10 to 30) °C           *9

* 1 typical value measured without averaging with an integration time of 1ms (standard deviation). With averaging the base line noise reduces.

* 2 typical value measured without averaging with a measuring time of 1ms and full saturation of the detector. With averaging the SNR increases.

*9 The device takes about 25 minutes to stabilize in temperature. If measurements are taken in the warm-up phase or at non-constant temperatures, a new dark measurement is required for each measurement.

*10 The chip is basend on two different materials depending on the spectral range. Upper half (extendend InGaAs) may show a higher uncertainty at longer integration times.

*11 At longer integration times the possible saturation for the extendend InGaAs range may be limited by ambient temperature