Contrails
The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

Instrumentation and Measurement Techniques Study

Author(s): T. R. Shaifer
Corporate Author: Armour Research Foundation
Corporate Report Number: ARF 5112-Q15
Date of Publication: 1962-10-31
Pages: 71
Contract: DA 36-039-sc-78269
Original AD Number: AD-294 611

Abstract:
A practical in-circuit transistor leakage current tester is described. This device requires only simple operating procedures, and is capable of reading leakages below one microamp. The leakage tester actually constructed has measured leakages as low as one microampere with a collector load of 500 ohms. A theoretical computer study of fault location on open wire transmission lines utilizing the pulse echo technique was completed. Theoretical and experimental research indicates that the storage type oscilloscope method should allow the rapid location of faults on open wire transmission lines with a simple electronic test system. A study of the problem of rapid fault location of modules or components in electronic systems by internal means was initiated. Two methods are described. One method uses chemical voltage indicator cells, which exhibit a color change when the voltage across the terminals exceeds approximately 1.6 volts dc, and the other method uses small ferrite core indicators, which give an output signal variation proportional to the amount of dc current in a wire.

This citation is provided as a resource for researchers, but Contrails cannot provide a full-image download

U.S. government employees, Military/Department of Defense employees, and U.S. government contractors and sub-contractors may be eligible to register with the Defense Technical Information Center (DTIC), where this report and others like it may be available

Other options for obtaining this report

Via the Defense Technical Information Center (DTIC):
This report is not publicly available via DTIC

Via National Technical Information Service:
This report is unlikely to be available in the National Technical Reports Library

Indications of Public Availability
No digitial image of an index entry indicating public availability is currently available
There has been no verification of an indication of public availability from an inside cover statement
Tags: