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Inexpensive Digital Phase Fluorometer

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
29009
Program Year/Program:
1995 / SBIR
Agency Tracking Number:
29009
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
CIENCIA, INC.
111 ROBERTS ST, STE K EAST HARTFORD, CT -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1995
Title: Inexpensive Digital Phase Fluorometer
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $300,000.00
 

Abstract:

Fluorescence-lifetime based sensing provides a more robust and reliable detection method than intensity measurements which are notoriously prone to systematic errors. Measurement of fluorescence lifetime is also an important adjunct to quantitative spectrofluorimetric measurements in direct fiber-optic sensing systems. The reason for this is that dynamic quenching effects by other species in the sample may disrupt the correlation between a fluorescence intensity measurement and the concentration of analyte. In these cases, a fluorescence lifetime measurement may provide the additional information required to account for the effect of quenching on the measurement. We propose to develop a 1 0 MHz single-frequency cross-correlation digital phase fluorometer which exploits recent technological developments for inexpensive generation of the light modulation and cross- correlation frequencies. Additionally, we propose to replace the expensive analog electronics in current use for the phase measurement with a digital filter and digital phase detection thereby achieving a dramatic reduction in cost, while improving performance and reliability. The proposed approach will convert the problem of accurate phase measurement from a demanding analog hardware problem to a software solution with off-the-sheff hardware.

Principal Investigator:

Dr. Salvador M. Fernandez
2035289737

Business Contact:

Small Business Information at Submission:

Ciencia, Inc.
L11 Roberts Street, Suite C East Hartford, CT 06108

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No