Radiometric UDT sensors
The radiometric sensors from UDT Instruments as part of Gamma Scientific are very versatile in their respective dynamic range and wavelength range. In this way, many applications can be covered. The sensors are NIST-traceable and calibrated in the respective wavelength range at a distance of 10 nm.
The individual sensors can be controlled and read out via various measuring devices from UDT Instruments. Depending on the application and the number of sensors, a suitable precision measuring system can be put together.
Radiometric sensors
| Modell | Material | Default Calibration Units | Dynamic Range | Wavelength Range | Sensor Area | Notes |
|---|---|---|---|---|---|---|
| 221 | Si | W | 2,0 x 10^-11 bis 2,4 x 10^-3 W | 350 nm to 1100 nm | 1 cm² | high linearity, low noise |
| 247 | Si | W | 5,5 x 10^-11 bis 6,4 x 10^-3 W | 350 nm to 1100 nm | 1 cm² | Flat response > 93 % from 450 nm to 950 nm |
| 261 | Ge | W | 5,0 x 10^-10 bis 6,0 x 10^-3 W | 800 nm to 1750 nm | 0,5 cm² | suitable for wavelengths in telecommunications |
| S2575GE | Ge | W | 3,0 x 10^-9 to 1,6 W | 800 nm to 1750 nm | 0,5 cm² | Germanium sensor with integrating sphere |
| 268UVA | Si - UV | W/cm² bei 365 nm | 5,0 x 10^-10 to 9,0 x 10^-4 W/cm² | 320 nm to 400 nm | 1 cm² | 365 nm bandpass filter, opal glass diffuser |
| 268UVC | Si - UV | W/cm² bei 254 nm | 1,0 x 10^-8 to 7,5 x 10^-1 W/cm² | 200 nm to 280 nm | 1 cm² | 254 nm bandpass filter, PTFE diffuser |
| 280 | InGaAs | W | 1,4 x 10^-4 to 2,2 x 10^-3 W | 800 nm to 1750 nm | 3 mm² | Miniature sensor for 1550 nm |
| 19830-3-FLEX | Si | W/cm² | 35,8 x 10^-12 to 4,18 x 10^-1 W/cm² | 190 nm to 1100 nm | 9,6 mm² | thermoelectrically cooled photodetector |
| 222 | Si | W | 1,0 x 10^-10 to 7,0 x 10^-3 W | 200 nm to 400 nm | 1 cm² | high linearity, low noise |
| 260 | Si | W | 5,0 x 10^-11 to 1,5 x 10^-3 W | 350 nm to 1100 nm | 0,34 cm² | miniature sensor |
| S2575 | Si | W | 3,0 x 10^-8 to 9,5 x 10^-1 W | 450 nm to 1100 nm | 0,34 cm² | Miniature sensor with integrating sphere |
| 262 | Si | W | 1,3 x 10^-10 to 4,0 x 10^-3 W | 350 nm to 1150 nm | 0,34 cm² | Miniature sensor, flat response |
| S2575R | Si | W | 6,0 x 10^-8 to 1,8 W | 350 nm to 1100 nm | 0,34 cm² | Miniature sensor with integrating sphere |
| 264 | Si | W | 3,5 x 10^-8 to 4,0 x 10^-2 W | 350 nm to 1150 nm | 0,34 cm² | built-in diffuser, laser attenuator |
| 268 Blue | Si | W/cm² | 5,0 x 10^-10 to 5,0 x 10^-2 W/cm² | 400 nm to 500 nm | 1 cm² | Irradiance measurement in W/cm² |
| 268LP | Si | W | 7,0 x 10^-10 to 6,0 x 10^-2 W | 350 nm to 1100 nm | 1 cm² | Low Profile Sensor for limited space |
| 268R | Si | W | 1,3 x 10^-10 to 6,0 x 10^-3 W | 350 nm to 1100 nm | 1 cm² | Flat response > 93 % from 450 nm to 950 nm |
| 271 | Ge | W | 5,0 x 10^-10 to 6,0 x 10^-3 W | 800 nm to 1750 nm | 1 cm² | built-in sapphire window with anti-reflective coating |
Measuring Instruments
Sensor 470/480/485/490:
Table-top measuring instrument with 1 to 4 BNC inputs for photometric or radiometric sensors. Both the measured current and the absolutely calibrated photometric or radiometric measured value for a set wavelength can be displayed and recorded.
S471:
Hand-held measuring instrument with one BNC input for photometric or radiometric sensors. All measured values can be displayed and stored.
S450:
Hand-held measuring instrument with one BNC input for photometric or radiometric sensors. This device can also be used to measure the average power of laser pulses.
C-Serie:
special table-top measuring instrument with 1 to 4 BNC inputs for thermoelectrically cooled sensors. The built-in controller, which is compatible with the thermoelectrically cooled Si and InGaAs sensors, provides an order of magnitude higher sensitivity than the S470.