SpectroMaster® HR Universal - High Precision Automatic Goniometer-Spectrometer
The SpectroMaster® HR Universal Goniometer-Spectrometer is the most accurate refractive index measurement system currently on the market. This accuracy is the result of ultra-high precision components like the motorized air bearing rotary table or the high-class mirror optics and the high-quality manufacturing including careful inspection of all relevant parameters. The motorized goniometer is equipped with backlash-free piezo motors of negligible power dissipation for optimum thermal stability.
Key Features:
- Most accurate refractive index measurement system currently on the market with an accuracy of:
UV 195 nm – 365 nm 3×10-6
VIS 365 nm – 1014 nm 2×10-6
SWIR 1014 nm – 2325 nm 5×10-6 - Motorized air bearing rotary table with axial and radial run-out errors smaller than 0.05 µm
- High precision piezo motor drive
- High measurement speed and high positioning accuracy
- High performance off-axis parabolic mirrors with surface quality better λ/10
- Off-axis mirror collimator and autocollimator with infinity setting
- Geometric beam splitter design ensures wavelength-independent focusing over the full measurement range of the CCD
- UV-enhanced coating for best reflectivity over the full spectral range of 195 – 2325 nm
- Additional photo detectors are included besides the CCD. A cooled PbS-detector is used for the infrared and a photomultiplier for the UV .
- A motorized filter changer wheel can be equipped with up to 17 narrow bandwidth interference filters for easy selection and identification of the measurement spectral line
- Set of spectral lamps covering the spectral range from 195 nm up to 2325 nm
- Complete instrument rack for all supply and control boxes
Applications:
SpectroMaster® Goniometer-Spectrometers are used for high-precision determination of the refractive index and dispersion of optical glass and crystalline materials in the UV, VIS or IR spectral range.
SpectroMaster® HR Universal Software
The complete functionality of the SpectroMaster® instrument is controlled by an integrated Windows 7 based software program. It employs CCD camera and photo detector readout, including the full configuration of attached amplifiers and controllers. With the motorized SpectroMaster® model, measurements can be performed fully automatically over the complete spectral range of the chosen detector and spectral lamp. When the approximate refractive index is known for a certain glass type, the software searches and automatically measures each programmed spectral line and gives a report on the actual index values with the highest accuracy. Additionally, sophisticated tools enable the quick and easy characterization of unknown glass types, so that accurate refractive index data can be obtained in a few minutes. Of course, the software corrects the measurement data to take into account the ambient air refractive index depending on temperature and pressure.
In CCD camera measurements the software relies on the approved image analysis algorithms of TRIOPTICS PrismMaster® and OptiAngle® instruments for the accurate detection of spectral line positions. In scanning photo detector measurements, the spectral line profiles are automatically scanned and the line center position is determined with the highest precision. Full motorization ensures maximum independence from the skill of the operator and makes repeatability in the range of 10-7 possible. However, it has been proven that the manual models could reach the same high system accuracy due to precise alignment indicators assisting the operator in gaining maximum accuracy.
Of course, the software generates a complete and detailed measurement certificate. For further analysis, a RAW data output format is available, too.
| SpectroMaster® HR Universal | |
|---|---|
| Maximum wavelength range | 195-12000 nm (MN: 15.7.2014) |
| Standard | UV, VIS (visible), SWIR (short wave IR) |
| Optional | MWIR (mid wave IR), LWIR (long wave IR) |
| Apex angle measurement accuracy | 0.2 arcsec |
| Refractive index measurement accuracy | UV 195 nm – 365 nm 3x10-6 VIS 365 nm – 1014 nm 2x10-6 SWIR 1014 nm – 2325 nm 5x10-6 (Sample size at least 10 mm) (Temperature controlled to 0.1°) |
| Collimator | - off-axis parabolic mirror collimator - adjustable target slit |
| Autocollimator | - off-axis parabolic mirror autocollimator - geometric beam splitter |
| Spectral lamp housing | - mounting space for 9 spectral lamp on a rotary stage for quick manual selection - filter changer for 17 interference filters |
| Detector | - CCD - PbS for SWIR - PMT for UV |
| Order number | 5-107-11 |
| Goniometer | Ultra-high precision rotary air bearing, axial and radial run-out <0.05 µm, High precision angular encoder Measuring range +/- 100°, Air supply unit |
| Motorized | Highly dynamic backlash-free piezo motor drive with negligible thermal dissipation |
Collimator:
- Off-axis parabolic mirror collimator
- Mirror surface quality better λ /10
- Clear aperture 60 mm
- Focal length 600 mm
- Adjustable target slit
Autocollimator:
- Off-axis parabolic mirror autocollimator
- Mirror surface quality better λ /10
- UV-enhanced coating
- Clear aperture 60 mm
- Focal length 600 mm
- Geometric beam splitter
- LED illumination
- High-resolution CCD camera
- (optionally) UV-enhanced CCD
- UV/IR detector mount with adjustable detector slit
Detectors (SpectroMaster® HR Universal only):
- 2-stage thermoelectrically cooled PbS detector incl. thermal controller, preamplifier and bias voltage supply. Spectral range 1000 – 2325 nm
- Photomultiplier tube incl. voltage supply and low-noise preamplifier. Spectral range 185 – 320 nm
- UV-enhanced CCD camera. Spectral range 250 – 1050 nm
- Signal detection by laboratory grade lock-in amplifier
Spectral lamp housing:
- Piezo drive linear stage for sample position adjustment
- Piezo drive rotary stage for sample rotation
- Rotary encoder for measurement of sample rotation angle
Sample stage:
- Mounting space for 9 spectral lamps on a rotary stage for quick manual selection
- Integrated rear reflector mirror
- Removable fused silica condensor optics
- Electronically stabilized chopper wheel
- Motorized filter changer for 18 interference filters (manual filter changer on manual goniometer models)
- Spectral lamp power supply
