 | UV-VIS-IR Spectral Test Station for Calibration and Measurement
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This system was originally developed to determine detection ranges of heat seeking and light guided missiles. It meets the challenge of analyzing spectral sensitivity of detectors under development or in devices of unknown origin. It also serves as a spectral photometer if the large 5 inch (125 mm) monochromatic sample beam is used to measure transmissivity, reflectance or fluorescence of unusual samples.
This spectrometer uses reflective mirrors throughout the optical system and offers high resolution, high throughput, and optimized wavelength coverage.
The 190 nm to 20 micron selectable and scannable spectral energy emerges and reaches the sample stage in the form of a >125 mm collimated beam. This beam can be optically treated to also illuminate smaller sample areas.
Components to be tested - such as unknown receivers or specimens reacting in given spectral areas - can be mounted on a microprocessor controlled X-Y-Z stage.
The main component in this spectrometer is a classic McPherson Czerny-Turner 0.5 meter monochromator, Model 205, with a computer controlled quadruple grating turret.
Source selection is also computer controllable and provides overlapping source energy from 190 nm to 20 microns via a deuterium, tungsten and ceramic element.
In order to calibrate the response of unknown receivers, as in alarm systems, missiles, etc., McPherson provides two or more calibrated detectors for the entire wavelength range. (normally two for 200 nm to 8 microns.)
In the specialized version of this system above, a heat seeking missile was kinematically mounted and the dome of the missile received a 5 inch diameter collimated beam from the all reflective beam collection and collimation housing. The hyperbolic optical receiver of the missile transferred the scanning monochromatic energy of the calibration system to the detectors. The previously unknown spectral and peripheral response of the missile was determined and its spectral sensitivity was analyzed. Due to the accessible sample area, many other specimens and samples can be measured.