The economic effect of pulse repetition rate on the size, weight, and cost of radar modulators
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Authors
Romley, Richard Mansfield
Sample, Wilbur Harry
Subjects
Advisors
Elias, Peter
Date of Issue
1954
Date
Publisher
Massachusetts Institute of Technology
Language
en_US
Abstract
The purpose of this investigation was to establish the economic effect of increasing the pulse repetition rate upon the size, weight, and cost of radar laodulators. Three line-type circuits with repetition frequencies of UOO, 2,000, and 10,000 r/ere designed. The size, weight, and cost of the principal components -were determined by reference to manufacturers ' manuals and catalogues and by consulting design engineers of firms in the area. For the three modulators considered, size (volume), weight, and cost figures in order of ascending pulse repetition rates, i.e., ItOO, 2kc, and lOkc, aret volume in cubic inches - 21*3.20, 96.07, 176.06 j weight in pounds - lk.hk, 6.975, 7.1j cost in dollars - 132.08, 105.38, 232.33. These figures include only the principal components of the modulator 1 i.e., charging reactor, switch tube, pulse-forming network, shunt diode, and shunt resistor. Additional items such as chassis, various wiring circuits, pulse transformer, tube sockets, and labor costs have been omitted in the da a, but their influence is discussed. It is concluded that an increase in pulse repetition rate may result in a decrease in the size and weight of the radar modulator. If the modulators were actually under construction, the cost differential may be such as to be of little significance.
Type
Thesis
Description
Series/Report No
Department
Naval Architecture and Marine Engineering