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Center Innovation Fund: ARC CIF

Digital mMirror Device Flight Spectrometer

Completed Technology Project

Project Introduction

Digital mMirror Device Flight Spectrometer
The TI DLP spectrometer Bill of Materials (BOM) and schematics are available with the purchase of the TI DLP® NIRscan™ Evaluation Module (EM). We propose to acquire a NIRScan EM and review the BOM and schematics for application to flight; including considering for relevant environments and reliability. The result would be the development of a plan to take the instrument to a flight design using a NASA flight instrument development program (e.g., PICASSO).This proposed task would evaluate the acquired NIRspec EM with a sensor that is sensitive to longer wavelengths. The InGaAs detector in the COTS instrument will be replaced with a HgCdTe (MCT) sensor and the diffraction grating changed. Performance of the system will be evaluated through wavelength calibration and total throughput. All testing will be performed using existing hardware. The current optical system, which doesn’t retain the entrance slit image at the DLP, will be redesigned such that the slit is imaged on the DLP and then this image collimated and focused onto the sensor. In this configuration the instrument becomes a very flexible hyperspectral instrument, with programmable selection of spectra from a specified portion of an imaged location or from a specific range of wavelengths or spectral resolution. More »

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