3 Ocak 2011 Pazartesi

NOVA-II Spectrometer


The heart of the OMA analyzer series is the nova-II spectrometer. Its diode array contains 1,024 photodiodes, each designated to detect a specific wavelength. Collecting light intensity data from all these diodes simultaneously, the nova-II continuously produces full, high-resolution spectra of sample absorbance.

In engineering a spectrophotometer, higher light transmittance means more robust data. This was our guiding principle in designing the nova-II; we set out to achieve maximal light throughput while retaining an extremely stable, solid state build. The use of a dispersive holographic grating erases the need for multiple focusing mirrors (as found in Czerny-Turner models). Having fewer reflective elements reduces both stray light and incident light loss--manifesting as a very high signal-to-noise ratio.


Diode Array
1,024 photodiodes for high-res spectra
Pulsed Xenon* Light Source
Approximate five-year lifespan
Broad Spectral Response
190-1100nm wavelength range
Maximal Light Throughput
Industry-leading optics
Exceptional in low UV
Minimal stray light
Minimal Dark Current
CMOS Analog Circuitry
Low noise, low power consumption
Ethernet Interface for Remote Access
To learn about the conceptual basis of the nova-II and flow cell, see Principle of Operation: UV-VIS-SW-NIR Absorbance in the Concepts section.

*Some applications may require deuterium or tungsten light sources.


The nova-II is the core technology behind our flagship OMA series, as well as the TLG-837 and TSA-100 systems. With broad spectral response (190-1100nm) and ultra-fine wavelength resolution, the nova-II packs the capacity for multi-component analysis from the low ultraviolet range all the way up to NIR.

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