The Use of Microwave Energy as a Means of Drying Photographic Film

This report covers the preliminary design and performance characteristics of a unique method and device for the application of microwave energy to the drying of photographic materials. The method utilizes a parallel plate chamber design and a tuned or resonant system. The dryer was tested in the Air...

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Bibliographic Details
Main Authors: Loosberg, Paavo, Bleackley, W J, Van Koughnett, A L
Format: Report
Language:English
Subjects:
ABSORPTION
CAVITY RESONATORS
CIRCUITS
DRYING
EFFICIENCY
ELECTROMAGNETIC FIELDS
MAGNETRONS
MICROWAVE EQUIPMENT
MICROWAVE FREQUENCY
PERFORMANCE(ENGINEERING)
PHOTOGRAPHIC DRIERS
PHOTOGRAPHIC FILM
PHOTOGRAPHIC PROCESSING EQUIPMENT
Photography
POWER SUPPLIES
RESONANT FREQUENCY
TUNING DEVICES
WAVEGUIDES
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Summary:This report covers the preliminary design and performance characteristics of a unique method and device for the application of microwave energy to the drying of photographic materials. The method utilizes a parallel plate chamber design and a tuned or resonant system. The dryer was tested in the Air Force Avionics Laboratory. The microwave principle has been demonstrated to be an effective film drying method when properly applied and adjusted. The advantages of a microwave dryer are: (1) uniformity of drying; (2) efficient use of microwave energy; (3) compatible size; and (4) adaptability. The use of microwave energy for film drying will provide the photographic community with a new tool which permits film processing at any speed which the chemical development and fixing may dictate. (Author)