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A Study of the Error Involved in the Near Use of a Radio Interferometer

Description: From abstract: This paper presents the results of a study of the error in radio interferometer measurements of near sources attributable to the use of asymptotic formulae, valid for distant targets.
Date: April 21, 1959
Creator: Simmons, Gustavus J.
Partner: UNT Libraries Government Documents Department

Initial Peak Surge Current Detection Circuits

Description: Test requirements for several components specifies that surge currents be monitored to determine if the initial peak surge current exceeds a certain predetermined amplitude. This report describes and evaluates two circuits which were developed by Organization 2451 to meet this requirement in production testing.
Date: February 1961
Creator: Conrad, Milo M.
Partner: UNT Libraries Government Documents Department

A Pulse Ammeter

Description: A quantizing pulse ammeter has been designed which brackets an input pulse current peak between two preset current levels. These levels are easily selected by calibration circuits contained on the chassis. Readout is presented in the form of a Nixie visual display as well as an output which is suitable for automatic data recording.
Date: August 1961
Creator: Newman, J. J.
Partner: UNT Libraries Government Documents Department

The Use of Compensation With Directional Couplers

Description: Abstract: The accurate measurement of voltage standing wave ratio (VSWR) is of prime importance in the production of microwave systems. The work reported in this memorandum was undertaken in the development of a faster system for measuring VSWR.
Date: January 1961
Creator: Lincoln, Roland Alan
Partner: UNT Libraries Government Documents Department

Vapor Pressures of the Rare Earths

Description: Abstract: This report presents the vapor pressures versus temperature data graphically for the rare earth elements, yttrium and scandium.
Date: August 2, 1960
Creator: Beavis, L. C.
Partner: UNT Libraries Government Documents Department

An Aid to Printed Circuit Layouts Using the IBM-704 Computer

Description: Abstract: This memorandum presents the possible applications and instructions for using REDCROSS, an IBM-704 computer program.
Date: June 1960
Creator: Stearns, Samuel D. & O'Connell, R. A.
Partner: UNT Libraries Government Documents Department

A Digital Comparator

Description: A digital comparator has been designed to flag data which goes above a maximum limit or below a minimum limit.
Date: September 21, 1960
Creator: Bourgeois, N. A.
Partner: UNT Libraries Government Documents Department

High Velocity Shock Testing, Equipment and Methods

Description: The need for special high velocity shock testing is pointed out and equipment that has been developed to meet these needs is discussed. The concept of velocity-change and its importance in shock-testing technology is brought out. The three types of equipment discussed are: accelerated drop testers, pneumatic actuators, and air guns. Examples of each type and their capabilities and limitations are presented.
Date: July 11, 1960
Creator: Walker, Walter W.
Partner: UNT Libraries Government Documents Department

A High-Voltage Pulse Generator for Testing Dielectric Samples

Description: Abstract: The purpose of this report is to describe the problems inherent to general dielectric strength measurements, and to act as a guide in establishing a method for pulse dielectric strength measurements.
Date: July 13, 1960
Creator: Kelly, R. D.
Partner: UNT Libraries Government Documents Department

Curves for Estimating Low Blast Over-Pressure

Description: A plot of overpressure versus distance is presented for the fractional psi pressure level. The plot provides a rapid and simple means of estimating the permissible yield at any distance from settled areas.
Date: April 1958
Creator: Vortman, Luke J.
Partner: UNT Libraries Government Documents Department

A Transistorized Reactivity Measurement System

Description: An all-transistor system has been developed to be used in measuring the reactivity of the reactor in the Sandia Engineering Reactor Facility. In operation, the system triggers a pulsed neutron source (PNS) in the reactor and counts the resulting neutron flux, thus giving a measure of the time constant of the reactor. The counting is done in eleven time-sequenced counting channels. The reactor time constant is a measure of the reactor reactivity.
Date: July 6, 1960
Creator: Ehrman, Leonard
Partner: UNT Libraries Government Documents Department

Calibration of a Peak Current Gage Developed at Sandia Corporation

Description: Abstract: Methods are presented for calibrating a peak current gage which was developed at Sandia in the spring of 1953.
Date: December 28, 1953
Creator: Baker, G. E.; Looney, T. C.; Pafford, W. B. & Reis, George E.
Partner: UNT Libraries Government Documents Department

Vapor Pressures of the Rare Earths

Description: Abstract: This report presents the vapor pressures versus temperature data graphically for the rare earth elements, yttrium and scandium.
Date: December 23, 1960
Creator: Beavis, L. C.
Partner: UNT Libraries Government Documents Department

Automatic Tester for Electrical Fuses

Description: Abstract: This technical memorandum describes an automatic tester and recorder as it is used in obtaining fusing time information from electrical fuses for subsequent analysis in the IBM 704 computer.
Date: November 1961
Creator: Longerot, Carl D.
Partner: UNT Libraries Government Documents Department

Air-Gun Studies of Ferroelectric Materials (Second Printing)

Description: Specimens of two ferroelectric materials, barium titanate and lead-zirconate titanate, have been subjected to high dynamic stresses by impacting them with a projectile accelerated by an air gun. The purpose of these tests was to supplement information previously obtained using high explosives to stress the ferromagnetic materials.
Date: February 6, 1958
Creator: Ripperger, E. A. & Beck, A. F.
Partner: UNT Libraries Government Documents Department

APOTA (Automatic Positioning of Telemetering Antennas)

Description: This report presents a description of and operating instructions for APOTA--a device which automatically tracks any signal-emitting source within the 190 to 250 MC band. APOTA is especially useful for telemetering applications.
Date: September 14, 1955
Creator: Palmer, James E.; Crawley, T. V. & Lannon, J. T.
Partner: UNT Libraries Government Documents Department

Prediction of Shock Response

Description: Abstract: A method is presented of predicting the shock response of a friction-damped vibratory system.
Date: November 1960
Creator: Barba, Peter M.
Partner: UNT Libraries Government Documents Department