Compensation For Thermal Drift In An Optical Feedback Stabilized Photometer

Compensation For Thermal Drift In An Optical Feedback Stabilized Photometer

A simple circuit based upon an equal arm Wheatstone Bridge which senses temperature changes of the optical chassis permits compensation of thermally induced long term drift in a single beam optical feedback stabilized photometer. A drift rate of 0.004% T/hr was achieved.

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Bibliographische Detailangaben
Veröffentlicht in:Chem. Instrum.; (United States) 1976-01, Vol.7 (2), p.145-153
Hauptverfasser: Senn, David R., Carr, Peter W., Klatt, Leon N.
Format: Artikel
Sprache:eng
Schlagworte:
ELECTRIC BRIDGES
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
FEEDBACK
MEASURING INSTRUMENTS 440300 > Miscellaneous Instruments-- (-1989)
OTHER INSTRUMENTATION
PHOTOMETERS
STABILIZATION
TEMPERATURE EFFECTS
TEMPERATURE MEASUREMENT
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Beschreibung
Zusammenfassung:A simple circuit based upon an equal arm Wheatstone Bridge which senses temperature changes of the optical chassis permits compensation of thermally induced long term drift in a single beam optical feedback stabilized photometer. A drift rate of 0.004% T/hr was achieved.
ISSN:1073-9149
1525-6030
DOI:10.1080/10739147608543422